$157+ Cheap flights from Buffalo to Louisville (BUF - SDF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SDF
Sep 25 — Oct 21
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Louisville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Buffalo to Louisville
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Cheapest flights from Buffalo to LouisvilleExplore the most affordable flight options available from Buffalo to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
Explore the most affordable flight options available from Buffalo to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 26, 2026.
This American Airlines deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:43 am -
1 stop4h 37m
Sat 10/105:19 pm -
1 stop6h 40m
Deal found 8/23![American Airlines logo]()
$315
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:00 am -
1 stop6h 15m
Sat 10/1010:13 am -
2 stops8h 54m
Deal found 8/24![United Airlines logo]()
$320
This Southwest deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:35 pm -
2 stops7h 35m
Wed 10/147:10 am -
2 stops8h 05m
Deal found 8/24![Southwest logo]()
$325
This Delta deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:15 am -
1 stop3h 44m
Mon 10/195:38 pm -
1 stop6h 21m
Deal found 8/26![Delta logo]()
$335
This Southwest deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:30 pm -
2 stops7h 25m
Sat 10/104:35 pm -
1 stop4h 05m
Deal found 8/24![Southwest logo]()
$340
This Southwest deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:35 pm -
2 stops8h 30m
Sat 10/317:00 am -
2 stops9h 05m
Deal found 8/21![Southwest logo]()
$346
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:20 am -
1 stop3h 32m
Wed 9/167:55 am -
1 stop3h 27m
Deal found 8/25![Delta logo]()
$353
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:00 am -
1 stop4h 10m
Sun 12/137:41 am -
1 stop3h 43m
Deal found 8/25![Delta logo]()
$360
This Southwest deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:00 pm -
2 stops8h 40m
Sun 10/48:00 pm -
1 stop3h 45m
Deal found 8/24![Southwest logo]()
$365
This Southwest deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:00 am -
2 stops9h 00m
Mon 11/28:45 am -
2 stops6h 30m
Deal found 8/21![Southwest logo]()
$366
This Southwest deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:35 pm -
2 stops8h 30m
Sun 11/17:10 am -
2 stops7h 15m
Deal found 8/21![Southwest logo]()
$370
Best flights from Buffalo to LouisvilleDiscover carefully curated flight deals from Buffalo to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
Discover carefully curated flight deals from Buffalo to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 26, 2026.
This United Airlines deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:35 am -
2 stops7h 02m
Sat 10/312:15 pm -
1 stop6h 36m
Deal found 8/21![United Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:00 am -
1 stop8h 03m
Tue 11/173:14 pm -
1 stop3h 59m
Deal found 8/24![Delta logo]()
$335
This Southwest deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:15 am -
2 stops7h 10m
Tue 10/134:00 pm -
2 stops6h 20m
Deal found 8/23![Southwest logo]()
$346
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:15 am -
1 stop3h 44m
Mon 10/195:38 pm -
1 stop6h 21m
Deal found 8/25![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:33 am -
2 stops8h 34m
Mon 9/146:00 am -
1 stop3h 48m
Deal found 8/24![United Airlines logo]()
$358
This Southwest deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:05 am -
1 stop7h 15m
Sun 12/138:45 am -
1 stop6h 40m
Deal found 8/22![Southwest logo]()
$360
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:20 am -
1 stop3h 32m
Wed 9/167:55 am -
1 stop3h 27m
Deal found 8/25![Delta logo]()
$353
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:35 am -
2 stops9h 58m
Sat 10/312:15 pm -
1 stop6h 36m
Deal found 8/24![United Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:00 am -
1 stop4h 10m
Sun 12/137:41 am -
1 stop3h 43m
Deal found 8/25![Delta logo]()
$360
Last-minute flights from Buffalo to LouisvilleDiscover last-minute flight deals from Buffalo to Louisville. Data last updated August 26, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Louisville. Data last updated August 26, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:20 am -
1 stop3h 32m
Wed 9/167:55 am -
1 stop3h 27m
Deal found 8/25![Delta logo]()
$353
This United Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:33 am -
2 stops8h 34m
Mon 9/146:00 am -
1 stop3h 48m
Deal found 8/24![United Airlines logo]()
$358
This Southwest deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:40 am -
2 stops7h 55m
Mon 9/143:20 pm -
2 stops7h 25m
Deal found 8/24![Southwest logo]()
$396
This Southwest deal was found by Cheapflights users on 8/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:45 am -
2 stops8h 50m
Wed 9/166:00 am -
1 stop5h 40m
Deal found 8/25![Southwest logo]()
$453
This Southwest deal was found by Cheapflights users on 8/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:40 am -
1 stop4h 20m
Thu 9/244:10 pm -
1 stop6h 10m
Deal found 8/22![Southwest logo]()
$315
This American Airlines deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:30 am -
1 stop5h 10m
Sun 10/46:00 am -
1 stop5h 18m
Deal found 8/24![American Airlines logo]()
$360
This Southwest deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:00 pm -
2 stops8h 40m
Sun 10/48:00 pm -
1 stop3h 45m
Deal found 8/24![Southwest logo]()
$365
One-way flights from Buffalo to LouisvilleSearch for one-way flight options from Buffalo to Louisville. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
Search for one-way flight options from Buffalo to Louisville. Find affordable one-way fares based on user searches. Data last updated August 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:40 pm -
2 stops20h 31m
Deal found 8/24![Multiple Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:30 am -
1 stop7h 05m
Deal found 8/24![Southwest logo]()
$158
This Southwest deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:00 pm -
2 stops8h 40m
Deal found 8/23![Southwest logo]()
$163
This deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:57 pm -
1 stop5h 59m
Deal found 8/24![United Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:36 am -
2 stops32h 30m
Deal found 8/21![Multiple Airlines logo]()
$196
This Southwest deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/245:40 am -
2 stops7h 55m
Deal found 8/23![Southwest logo]()
$230
This Southwest deal was found by Cheapflights users on 8/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:55 pm -
1 stop6h 45m
Deal found 8/24![Southwest logo]()
$253
This Southwest deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/49:40 am -
1 stop5h 50m
Deal found 8/21![Southwest logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 8/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:36 am -
3 stops26h 40m
Deal found 8/23![Multiple Airlines logo]()
$292
Find flight deals from Buffalo to Louisville
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $315 (American Airlines) |
One-way from | $157 (Kiwi.com) |
Popular in | June |
Cheapest in | April |
Average price | $579 |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 26, 2026.
Use the filters below to find and compare flights from Buffalo to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Thu 10/29
10:35 am-5:37 pm
2 stops7h 02m
Louisville Intl
Sat 10/31
2:15 pm-8:51 pm
1 stop6h 36m
$320
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Fri 11/13
6:00 am-2:03 pm
1 stop8h 03m
Louisville Intl
Tue 11/17
3:14 pm-7:13 pm
1 stop3h 59m
$335
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Fri 10/16
6:15 am-9:59 am
1 stop3h 44m
Louisville Intl
Mon 10/19
5:38 pm-11:59 pm
1 stop6h 21m
$335
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Tue 10/6
6:15 am-1:25 pm
2 stops7h 10m
Louisville Intl
Tue 10/13
4:00 pm-10:20 pm
2 stops6h 20m
$346
Quickest round-trip
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Thu 9/10
6:20 am-9:52 am
1 stop3h 32m
Louisville Intl
Wed 9/16
7:55 am-11:22 am
1 stop3h 27m
$353
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Thu 9/10
10:33 am-7:07 pm
2 stops8h 34m
Louisville Intl
Mon 9/14
6:00 am-9:48 am
1 stop3h 48m
$358
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Thu 12/10
7:05 am-2:20 pm
1 stop7h 15m
Louisville Intl
Sun 12/13
8:45 am-3:25 pm
1 stop6h 40m
$360
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Thu 12/10
6:00 am-10:10 am
1 stop4h 10m
Louisville Intl
Sun 12/13
7:41 am-11:24 am
1 stop3h 43m
$360
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Wed 10/28
10:35 am-8:33 pm
2 stops9h 58m
Louisville Intl
Sat 10/31
2:15 pm-8:51 pm
1 stop6h 36m
$390
Cheapest one-way
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Fri 9/18
1:40 pm-10:11 am
2 stops20h 31m
$157
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Buffalo to Louisville
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Louisville in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Buffalo-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-Louisville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Buffalo to Louisville
Have a flexible travel schedule? Discover the best time to fly to Louisville from Buffalo with our price prediction graph.
BUF-SDF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Buffalo to Louisville
Reviews of airlines servicing Louisville
Get insights into the airlines that provide service to Louisville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisville. Reviews last updated August 26, 2026.
Get a feel of what it's like to fly with Delta and American Airlines from Buffalo to Louisville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Comfort
7.8
Overall
7.8
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Related info for your journey
Find useful and relevant information for your journey from Buffalo to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsCorydon
Shepherdsville
Elizabethtown
Jeffersonville
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Other flights to Louisville
Explore flights to Louisville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 26, 2026.
Buffalo and Louisville flights
Browse other Buffalo and Louisville flight options. Last updated on August 26, 2026.
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Browse through other flights departing from Buffalo. Flights are based on user searches made on Cheapflights and were last updated on August 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Buffalo to Louisville
Discover the top 2 airlines that operate flights from Buffalo to Louisville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated August 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$294 | Average$380 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$300 | Average$531 | FlexibilityNo cancel fee | On-timeN/A |