Delhi to Patna One Way Flight Results
Get cheap Delhi to Patna flights starting from just ₹6059! Save up to ₹2000 on your bookings. Best deals for budget travel. Book now & don't miss out!13:35-15:25 01h 50mDEL - PAT
Non-Stops
13:35DEL
01h 50m 15:25PAT
₹6,059
16:45-18:35 01h 50mDEL - PAT
Non-Stops
16:45DEL
01h 50m 18:35PAT
₹6,059
06:20-08:00 01h 40mDEL - PAT
Non-Stops
06:20DEL
01h 40m 08:00PAT
₹6,373
08:40-10:20 01h 40mDEL - PAT
Non-Stops
08:40DEL
01h 40m 10:20PAT
₹6,373
10:00-11:40 01h 40mDEL - PAT
Non-Stops
10:00DEL
01h 40m 11:40PAT
₹6,373
14:20-16:00 01h 40mDEL - PAT
Non-Stops
14:20DEL
01h 40m 16:00PAT
₹6,373
16:05-17:45 01h 40mDEL - PAT
Non-Stops
16:05DEL
01h 40m 17:45PAT
₹6,373
17:55-19:45 01h 50mDEL - PAT
Non-Stops
17:55DEL
01h 50m 19:45PAT
₹6,373
19:20-21:00 01h 40mDEL - PAT
Non-Stops
19:20DEL
01h 40m 21:00PAT
₹6,373
14:20-15:55 01h 35mDEL - PAT
Non-Stops
14:20DEL
01h 35m 15:55PAT
₹7,607
08:20-10:05 01h 45mDEL - PAT
Non-Stops
08:20DEL
01h 45m 10:05PAT
₹8,212
18:10-19:55 01h 45mDEL - PAT
Non-Stops
18:10DEL
01h 45m 19:55PAT
₹8,212
07:00-13:35 06h 35mDEL - PAT
StopsBOM
07:00DEL
06h 35m1 stops 13:35PAT
₹15,404
02:15-13:35 11h 20mDEL - PAT
StopsBOM
02:15DEL
11h 20m1 stops 13:35PAT
₹15,404
21:20-13:35 16h 15mDEL - PAT
StopsBOM
21:20DEL
16h 15m1 stops 13:35PAT
₹15,404
20:00-13:35 17h 35mDEL - PAT
StopsBOM
20:00DEL
17h 35m1 stops 13:35PAT
₹15,404
17:50-13:35 19h 45mDEL - PAT
StopsBOM
17:50DEL
19h 45m1 stops 13:35PAT
₹15,404
09:00-13:35 28h 35mDEL - PAT
StopsBOM
09:00DEL
28h 35m1 stops 13:35PAT
₹15,404
22:30-13:35 15h 05mDEL - PAT
StopsBOM
22:30DEL
15h 05m1 stops 13:35PAT
₹16,244
19:00-13:35 18h 35mDEL - PAT
StopsBOM
19:00DEL
18h 35m1 stops 13:35PAT
₹19,079
14:45-13:35 22h 50mDEL - PAT
StopsBOM
14:45DEL
22h 50m1 stops 13:35PAT
₹19,079
10:15-13:35 27h 20mDEL - PAT
StopsBOM
10:15DEL
27h 20m1 stops 13:35PAT
₹20,654
07:30-13:35 06h 05mDEL - PAT
StopsBOM
07:30DEL
06h 05m1 stops 13:35PAT
₹71,166
02:30-13:35 11h 05mDEL - PAT
StopsBOM
02:30DEL
11h 05m1 stops 13:35PAT
₹71,166
13:35-15:25 01h 50mDEL - PAT
Non-Stops
13:35DEL
01h 50m 15:25PAT
₹6,059
16:45-18:35 01h 50mDEL - PAT
Non-Stops
16:45DEL
01h 50m 18:35PAT
₹6,059
06:20-08:00 01h 40mDEL - PAT
Non-Stops
06:20DEL
01h 40m 08:00PAT
₹6,373
08:40-10:20 01h 40mDEL - PAT
Non-Stops
08:40DEL
01h 40m 10:20PAT
₹6,373
10:00-11:40 01h 40mDEL - PAT
Non-Stops
10:00DEL
01h 40m 11:40PAT
₹6,373
14:20-16:00 01h 40mDEL - PAT
Non-Stops
14:20DEL
01h 40m 16:00PAT
₹6,373
16:05-17:45 01h 40mDEL - PAT
Non-Stops
16:05DEL
01h 40m 17:45PAT
₹6,373
17:55-19:45 01h 50mDEL - PAT
Non-Stops
17:55DEL
01h 50m 19:45PAT
₹6,373
19:20-21:00 01h 40mDEL - PAT
Non-Stops
19:20DEL
01h 40m 21:00PAT
₹6,373
14:20-15:55 01h 35mDEL - PAT
Non-Stops
14:20DEL
01h 35m 15:55PAT
₹7,607
08:20-10:05 01h 45mDEL - PAT
Non-Stops
08:20DEL
01h 45m 10:05PAT
₹8,212
18:10-19:55 01h 45mDEL - PAT
Non-Stops
18:10DEL
01h 45m 19:55PAT
₹8,212
07:00-13:35 06h 35mDEL - PAT
StopsBOM
07:00DEL
06h 35m1 stops 13:35PAT
₹15,404
02:15-13:35 11h 20mDEL - PAT
StopsBOM
02:15DEL
11h 20m1 stops 13:35PAT
₹15,404
21:20-13:35 16h 15mDEL - PAT
StopsBOM
21:20DEL
16h 15m1 stops 13:35PAT
₹15,404
20:00-13:35 17h 35mDEL - PAT
StopsBOM
20:00DEL
17h 35m1 stops 13:35PAT
₹15,404
17:50-13:35 19h 45mDEL - PAT
StopsBOM
17:50DEL
19h 45m1 stops 13:35PAT
₹15,404
09:00-13:35 28h 35mDEL - PAT
StopsBOM
09:00DEL
28h 35m1 stops 13:35PAT
₹15,404
22:30-13:35 15h 05mDEL - PAT
StopsBOM
22:30DEL
15h 05m1 stops 13:35PAT
₹16,244
19:00-13:35 18h 35mDEL - PAT
StopsBOM
19:00DEL
18h 35m1 stops 13:35PAT
₹19,079
14:45-13:35 22h 50mDEL - PAT
StopsBOM
14:45DEL
22h 50m1 stops 13:35PAT
₹19,079
10:15-13:35 27h 20mDEL - PAT
StopsBOM
10:15DEL
27h 20m1 stops 13:35PAT
₹20,654
07:30-13:35 06h 05mDEL - PAT
StopsBOM
07:30DEL
06h 05m1 stops 13:35PAT
₹71,166
02:30-13:35 11h 05mDEL - PAT
StopsBOM
02:30DEL
11h 05m1 stops 13:35PAT
₹71,166
About Delhi
Delhi: Delhi, the capital of India, is a vibrant city known for its historical landmarks, diverse culture, and government institutions.1. Connectivity
Connectivity from Indira Gandhi International Airport, DelhiDiscover convenience with an extensive network of domestic flights from Indira Gandhi International Airport. Unleash your travel desires with routes covering key Indian cities, offering an array of choices for every budget, including cheap flights from Delhi. International Flight Routes
Embark on global adventures with our international flight connectivity. From cultural capitals to exotic destinations, Indira Gandhi International Airport opens the door to the world. Find your escape with ease, exploring diverse options, including cheap flights to Delhi.Experience seamless journeys with leading domestic airlines taking off from Delhi. Airlines like IndiGo, Air India, and SpiceJet ensure frequent and accessible connections, catering to various travel needs, including those seeking cheap flights from Delhi. Connect globally with renowned international airlines operating from Indira Gandhi International Airport. Names like Emirates, British Airways, and Singapore Airlines elevate your travel experience, providing options, including cheap flights to Delhi. Total Passengers Per Year
Indira Gandhi International Airport welcomes millions annually, reflecting its status as a major global aviation hub. Join the ranks of satisfied travelers navigating the skies with the efficiency and warmth of Delhi's premier airport.Uncover the pulse of aviation with the busiest routes from Indira Gandhi International Airport. Whether it's Delhi to Mumbai, Dubai, or beyond, witness the heartbeat of travel on these bustling routes. 2. Connectivity
Connectivity from Indira Gandhi International Airport, DelhiDiscover convenience with an extensive network of domestic flights from Indira Gandhi International Airport. Unleash your travel desires with routes covering key Indian cities, offering an array of choices for every budget, including cheap flights from Delhi. International Flight Routes
Embark on global adventures with our international flight connectivity. From cultural capitals to exotic destinations, Indira Gandhi International Airport opens the door to the world. Find your escape with ease, exploring diverse options, including cheap flights to Delhi.Experience seamless journeys with leading domestic airlines taking off from Delhi. Airlines like IndiGo, Air India, and SpiceJet ensure frequent and accessible connections, catering to various travel needs, including those seeking cheap flights from Delhi. Connect globally with renowned international airlines operating from Indira Gandhi International Airport. Names like Emirates, British Airways, and Singapore Airlines elevate your travel experience, providing options, including cheap flights to Delhi. Total Passengers Per Year
Indira Gandhi International Airport welcomes millions annually, reflecting its status as a major global aviation hub. Join the ranks of satisfied travelers navigating the skies with the efficiency and warmth of Delhi's premier airport.Uncover the pulse of aviation with the busiest routes from Indira Gandhi International Airport. Whether it's Delhi to Mumbai, Dubai, or beyond, witness the heartbeat of travel on these bustling routes. 3. Stays
Best Stays Around Indira Gandhi International Airport, Delhi, IndiaRadisson Blu Plaza Delhi Airport
Experience luxury at Radisson Blu Plaza, a premier stay around Indira Gandhi International Airport. Ideal for both business and leisure travelers, enjoy modern amenities and impeccable service.Pullman New Delhi Aerocity
Indulge in contemporary elegance at Pullman, strategically located near the airport. With stylish rooms and exceptional dining, it's a perfect choice for travelers seeking convenience and comfort.Holiday Inn New Delhi International Airport
Unwind at Holiday Inn, offering a relaxing stay around Indira Gandhi International Airport. Comfortable rooms, dining options, and proximity make it a preferred choice for a hassle-free stay.Novotel New Delhi Aerocity
Discover sophistication at Novotel, a chic option near the airport. Enjoy well-appointed rooms, diverse dining, and excellent facilities, providing a seamless stay for travelers.JW Marriott Hotel New Delhi Aerocity
Elevate your stay at JW Marriott, an epitome of luxury near Indira Gandhi International Airport. Immerse yourself in opulence with spacious rooms, fine dining, and top-notch services.Andaz Delhi - A Concept by Hyatt
Immerse in contemporary luxury at Andaz, a stylish stay around the airport. With unique design elements and personalized service, it offers a distinctive experience for discerning travelers.Opt for affordability without compromising comfort at Ibis. A budget-friendly stay around Indira Gandhi International Airport, it provides a convenient and cozy lodging option. Lemon Tree Premier, Delhi Airport
Enjoy a vibrant stay at Lemon Tree Premier, offering a refreshing experience near the airport. Comfortable rooms, modern amenities, and a lively ambiance make it a delightful choice.4. Facilities
Indira Gandhi International Airport, Delhi, India: Comprehensive Facilities GuideConvenient parking facilities at Indira Gandhi International Airport offer secure options for both short and long stays. With well-maintained spaces and efficient services, parking becomes a hassle-free affair in the vibrant capital city, Delhi. Indulge in comfort at the lounges within Indira Gandhi International Airport. Whether it's a business lounge or a relaxation space, travelers in Delhi, India, can enjoy a serene atmosphere and amenities catering to diverse needs. Shop without borders at the Duty-Free outlets in Indira Gandhi International Airport. Delight in an extensive range of products, from luxury items to essentials, ensuring a fulfilling shopping experience in Delhi, India. Travel with peace of mind, as Indira Gandhi International Airport provides medical services. In the event of any health concerns, passengers in Delhi can access professional medical assistance, prioritizing well-being. Delhi airport has information desks located in all three terminals, which are staffed by trained personnel who can assist passengers with a range of queries, including flight information, airport facilities, and transportation options. Banking made easy with multiple ATMs strategically placed at Indira Gandhi International Airport. Whether you're arriving or departing from Delhi, access convenient and reliable banking services for a hassle-free journey. Facilitate seamless currency transactions at the Currency Exchange counters in Indira Gandhi International Airport. Travelers to and from Delhi, India, can exchange currencies with ease, ensuring financial flexibility. Maintain freshness and hygiene at the well-maintained restrooms across Indira Gandhi International Airport. Ensuring comfort for all travelers in Delhi, these facilities are easily accessible and cleaned regularly. Stay connected at all times with the complimentary Wi-Fi services at Indira Gandhi International Airport. Whether for business or leisure, passengers in Delhi can enjoy reliable internet connectivity, enhancing their travel experience. Delhi airport has several dining options available for passengers, ranging from fast food to fine dining. The airport has a wide range of restaurants, cafes, and bars located throughout all three terminals, offering both Indian and international cuisine. In addition, there are several snack bars and vending machines located throughout the airport 5. Facilities
Indira Gandhi International Airport, Delhi, India: Comprehensive Facilities GuideConvenient parking facilities at Indira Gandhi International Airport offer secure options for both short and long stays. With well-maintained spaces and efficient services, parking becomes a hassle-free affair in the vibrant capital city, Delhi. Indulge in comfort at the lounges within Indira Gandhi International Airport. Whether it's a business lounge or a relaxation space, travelers in Delhi, India, can enjoy a serene atmosphere and amenities catering to diverse needs. Shop without borders at the Duty-Free outlets in Indira Gandhi International Airport. Delight in an extensive range of products, from luxury items to essentials, ensuring a fulfilling shopping experience in Delhi, India. Travel with peace of mind, as Indira Gandhi International Airport provides medical services. In the event of any health concerns, passengers in Delhi can access professional medical assistance, prioritizing well-being. Delhi airport has information desks located in all three terminals, which are staffed by trained personnel who can assist passengers with a range of queries, including flight information, airport facilities, and transportation options. Banking made easy with multiple ATMs strategically placed at Indira Gandhi International Airport. Whether you're arriving or departing from Delhi, access convenient and reliable banking services for a hassle-free journey. Facilitate seamless currency transactions at the Currency Exchange counters in Indira Gandhi International Airport. Travelers to and from Delhi, India, can exchange currencies with ease, ensuring financial flexibility. Maintain freshness and hygiene at the well-maintained restrooms across Indira Gandhi International Airport. Ensuring comfort for all travelers in Delhi, these facilities are easily accessible and cleaned regularly. Stay connected at all times with the complimentary Wi-Fi services at Indira Gandhi International Airport. Whether for business or leisure, passengers in Delhi can enjoy reliable internet connectivity, enhancing their travel experience. Delhi airport has several dining options available for passengers, ranging from fast food to fine dining. The airport has a wide range of restaurants, cafes, and bars located throughout all three terminals, offering both Indian and international cuisine. In addition, there are several snack bars and vending machines located throughout the airport 6. Facilities
Indira Gandhi International Airport, Delhi, India: Comprehensive Facilities GuideConvenient parking facilities at Indira Gandhi International Airport offer secure options for both short and long stays. With well-maintained spaces and efficient services, parking becomes a hassle-free affair in the vibrant capital city, Delhi. Indulge in comfort at the lounges within Indira Gandhi International Airport. Whether it's a business lounge or a relaxation space, travelers in Delhi, India, can enjoy a serene atmosphere and amenities catering to diverse needs. Shop without borders at the Duty-Free outlets in Indira Gandhi International Airport. Delight in an extensive range of products, from luxury items to essentials, ensuring a fulfilling shopping experience in Delhi, India. Travel with peace of mind, as Indira Gandhi International Airport provides medical services. In the event of any health concerns, passengers in Delhi can access professional medical assistance, prioritizing well-being. Delhi airport has information desks located in all three terminals, which are staffed by trained personnel who can assist passengers with a range of queries, including flight information, airport facilities, and transportation options. Banking made easy with multiple ATMs strategically placed at Indira Gandhi International Airport. Whether you're arriving or departing from Delhi, access convenient and reliable banking services for a hassle-free journey. Facilitate seamless currency transactions at the Currency Exchange counters in Indira Gandhi International Airport. Travelers to and from Delhi, India, can exchange currencies with ease, ensuring financial flexibility. Maintain freshness and hygiene at the well-maintained restrooms across Indira Gandhi International Airport. Ensuring comfort for all travelers in Delhi, these facilities are easily accessible and cleaned regularly. Stay connected at all times with the complimentary Wi-Fi services at Indira Gandhi International Airport. Whether for business or leisure, passengers in Delhi can enjoy reliable internet connectivity, enhancing their travel experience. Delhi airport has several dining options available for passengers, ranging from fast food to fine dining. The airport has a wide range of restaurants, cafes, and bars located throughout all three terminals, offering both Indian and international cuisine. In addition, there are several snack bars and vending machines located throughout the airport 7. Facilities
Indira Gandhi International Airport, Delhi, India: Comprehensive Facilities GuideConvenient parking facilities at Indira Gandhi International Airport offer secure options for both short and long stays. With well-maintained spaces and efficient services, parking becomes a hassle-free affair in the vibrant capital city, Delhi. Indulge in comfort at the lounges within Indira Gandhi International Airport. Whether it's a business lounge or a relaxation space, travelers in Delhi, India, can enjoy a serene atmosphere and amenities catering to diverse needs. Shop without borders at the Duty-Free outlets in Indira Gandhi International Airport. Delight in an extensive range of products, from luxury items to essentials, ensuring a fulfilling shopping experience in Delhi, India. Travel with peace of mind, as Indira Gandhi International Airport provides medical services. In the event of any health concerns, passengers in Delhi can access professional medical assistance, prioritizing well-being. Delhi airport has information desks located in all three terminals, which are staffed by trained personnel who can assist passengers with a range of queries, including flight information, airport facilities, and transportation options. Banking made easy with multiple ATMs strategically placed at Indira Gandhi International Airport. Whether you're arriving or departing from Delhi, access convenient and reliable banking services for a hassle-free journey. Facilitate seamless currency transactions at the Currency Exchange counters in Indira Gandhi International Airport. Travelers to and from Delhi, India, can exchange currencies with ease, ensuring financial flexibility. Maintain freshness and hygiene at the well-maintained restrooms across Indira Gandhi International Airport. Ensuring comfort for all travelers in Delhi, these facilities are easily accessible and cleaned regularly. Stay connected at all times with the complimentary Wi-Fi services at Indira Gandhi International Airport. Whether for business or leisure, passengers in Delhi can enjoy reliable internet connectivity, enhancing their travel experience. Delhi airport has several dining options available for passengers, ranging from fast food to fine dining. The airport has a wide range of restaurants, cafes, and bars located throughout all three terminals, offering both Indian and international cuisine. In addition, there are several snack bars and vending machines located throughout the airport 8. How to Reach
Effortless Travel to Indira Gandhi International Airport, Delhi: A Comprehensive GuideReach Indira Gandhi International Airport by rail via the Delhi Airport Metro Express. The Airport Express Line connects the city to the airport seamlessly, offering a quick and efficient transit option for passengers traveling to or from Delhi, India. By Local Transport (Auto, Rickshaws, Trams)
Experience the local charm by choosing auto-rickshaws or cycle rickshaws for short-distance travel around Delhi. While trams may not be available, auto-rickshaws and cycle rickshaws offer an authentic and budget-friendly mode of transport for navigating the city streets.For a comfortable and direct journey, opt for taxis to reach Indira Gandhi International Airport. Abundant taxi services operate in Delhi, ensuring a swift and hassle-free commute for passengers looking for a door-to-door travel experience. Navigate the city with ease using the Delhi Metro network. The Airport Line of the metro connects prominent locations in Delhi to Indira Gandhi International Airport, providing a convenient and cost-effective mode of transportation for both locals and visitors. Explore the well-connected bus network in Delhi for an economical transit option to Indira Gandhi International Airport. Public buses provide regular services, catering to various routes and making the airport accessible to a wide range of commuters.
About Patna
Patna: The capital of Bihar, known for its historical significance with sites like Golghar, Patna Museum, and its role in Indian history and politics.1. Connectivity
Connectivity from Jay Prakash Narayan Int'l AirportJay Prakash Narayan International Airport, Patna, offers a comprehensive flight network for both domestic and international travelers. Explore numerous domestic destinations conveniently with options for 'Cheap Flights from Patna.' International Flight Routes
Embark on global adventures with international flights from Jay Prakash Narayan International Airport. Discover affordable travel with 'Cheap Flights to Patna.'Leading domestic airlines like IndiGo, SpiceJet, and Air India operate from this airport, providing diverse options for travelers. Key International Airlines
International carriers such as Emirates, Qatar Airways, and Thai Airways ensure seamless global connectivity.Jay Prakash Narayan International Airport serves millions of passengers annually, connecting people from various walks of life. The most heavily traveled route from Jay Prakash Narayan International Airport is to Delhi, accommodating a significant number of passengers seeking affordable options like 'Cheap Flights from Patna.' 2. How to Reach
How to Reach Jay Prakash Narayan International Airport, PatnaThe city's main railway station, Patna Junction, connects seamlessly to Jay Prakash Narayan International Airport. Opt for a convenient taxi or local transport for a swift journey. As of now, Patna doesn't have a metro system. However, a well-connected network of buses, taxis, and local transport options make reaching the airport hassle-free. Taxis are readily available throughout Patna for a direct and comfortable journey to Jay Prakash Narayan International Airport. Ensure a stress-free ride with reliable taxi services in the city. Patna's extensive bus network includes routes connecting the city to Jay Prakash Narayan International Airport. Choose a bus service for an economical and straightforward travel experience. By Local Transport (Auto, Rickshaws)
Local transport options like auto-rickshaws and cycle-rickshaws provide a convenient mode of travel to the airport within Patna. Easily accessible, these options offer flexibility for short-distance travel.3. Facilities
Facilities at Jay Prakash Narayan International Airport, Patna, IndiaJay Prakash Narayan International Airport in Patna provides secure and convenient parking facilities for both short and long-term stays. Ample parking space is available to cater to the needs of travelers. Relax and unwind in the comfortable lounges at Jay Prakash Narayan International Airport. Enjoy a serene atmosphere, complimentary refreshments, and essential amenities before your flight. Indulge in a seamless shopping experience at the duty-free shops in Jay Prakash Narayan International Airport. Explore a variety of products and make your pre-flight shopping hassle-free. For any health-related concerns, Jay Prakash Narayan International Airport is equipped with medical services. A medical center ensures the well-being of passengers in the airport premises. Find assistance and information easily at the dedicated information desk in Jay Prakash Narayan International Airport. Friendly staff members are available to answer queries and provide guidance. Access cash conveniently with multiple ATMs available within Jay Prakash Narayan International Airport. Ensure you have access to financial services while traveling through the airport. Maintain comfort throughout your travel experience with well-maintained restroom facilities at Jay Prakash Narayan International Airport. Clean and accessible restrooms are available throughout the airport. Efficient transport options connect Jay Prakash Narayan International Airport with the city of Patna. Taxis, car rentals, and other transportation services are readily available for your convenience. Stay connected with complimentary Wi-Fi services at Jay Prakash Narayan International Airport. Enjoy seamless internet access to stay in touch with loved ones or handle important tasks. Satisfy your hunger cravings with a variety of food and beverage options at Jay Prakash Narayan International Airport. Explore diverse culinary offerings to suit your taste preferences. For international travelers, Jay Prakash Narayan International Airport offers currency exchange services. Exchange currency with ease to meet your financial needs during your journey. 4. Stays
There are several good hotels near Patna airport. Some popular optionsExperience comfort and convenience at Hotel SkyView, one of the premier stays around Jay Prakash Narayan Int'l Airport. Enjoy a cozy stay at Airport Residency, offering proximity and comfort for travelers seeking stays around Jay Prakash Narayan Int'l Airport. Lemon Tree Premier near Jay Prakash Narayan Int'l Airport provides a blend of luxury and accessibility for discerning travelers. Located near Jay Prakash Narayan Int'l Airport, Hotel Chanakya offers a perfect blend of comfort and convenience for a memorable stay. Indulge in luxury at Hotel Maurya, strategically positioned near Jay Prakash Narayan Int'l Airport, making it an ideal choice for discerning travelers. Discover elegance at The Panache Hotel, a premium option for those seeking sophisticated stays around Jay Prakash Narayan Int'l Airport. For a budget-friendly stay near Jay Prakash Narayan Int'l Airport, Amrapali Residency offers comfort and accessibility for all types of travelers. Hotel Republic stands as a reliable option for those looking for convenient and affordable stays around Jay Prakash Narayan Int'l Airport. Delhi to Patna flights FAQsWhich airlines operate Delhi to Patna flights? What is the departure time of the first flight? What is the departure time of the last flight? How long is the duration of the flight? Are there any non-stop flights available? Which flights are the most affordable?