$158+ Cheap flights from Buffalo to Louisville (BUF - SDF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SDF
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Louisville with Cheapflights
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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 September 29, 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 September 29, 2026.
This United Airlines deal was found by Cheapflights users on 9/28. 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 11/126:00 am -
1 stop4h 34m
Tue 11/1710:37 am -
1 stop6h 25m
Deal found 9/28![United Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 9/28. 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 11/125:30 pm -
1 stop6h 55m
Tue 11/1712:55 pm -
2 stops9h 05m
Deal found 9/28![Southwest logo]()
$320
This Delta deal was found by Cheapflights users on 9/24. 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 11/132:15 pm -
1 stop6h 44m
Mon 11/165:40 pm -
1 stop6h 18m
Deal found 9/24![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 9/28. 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 11/1211:00 am -
1 stop6h 00m
Thu 11/1912:55 pm -
2 stops9h 05m
Deal found 9/28![Southwest logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Fri 11/136:00 am -
2 stops8h 47m
Mon 11/166:00 am -
1 stop3h 54m
Deal found 9/24![United Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 9/25. 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 10/1612:15 pm -
1 stop5h 03m
Mon 10/195:59 pm -
1 stop5h 00m
Deal found 9/25![Delta logo]()
$347
This Southwest deal was found by Cheapflights users on 9/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:05 am -
2 stops8h 30m
Thu 11/125:35 pm -
2 stops6h 15m
Deal found 9/26![Southwest logo]()
$354
This American Airlines deal was found by Cheapflights users on 9/28. 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.
Fri 11/206:00 am -
1 stop4h 35m
Sat 11/216:21 pm -
1 stop5h 36m
Deal found 9/28![American Airlines logo]()
$360
This Southwest deal was found by Cheapflights users on 9/28. 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 12/1012:45 pm -
2 stops9h 05m
Sun 12/138:45 am -
1 stop6h 40m
Deal found 9/28![Southwest logo]()
$365
This Southwest deal was found by Cheapflights users on 9/24. 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 11/1312:40 pm -
2 stops9h 35m
Mon 11/168:50 am -
2 stops6h 25m
Deal found 9/24![Southwest logo]()
$369
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 September 29, 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 September 29, 2026.
This United Airlines deal was found by Cheapflights users on 9/28. 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 11/126:00 am -
1 stop4h 34m
Tue 11/1710:37 am -
1 stop6h 25m
Deal found 9/28![United Airlines logo]()
$315
This Southwest deal was found by Cheapflights users on 9/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:20 am -
1 stop5h 50m
Thu 11/125:10 pm -
1 stop6h 40m
Deal found 9/26![Southwest logo]()
$315
This Delta deal was found by Cheapflights users on 9/24. 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 2/1910:15 am -
1 stop6h 12m
Mon 2/226:26 pm -
1 stop4h 39m
Deal found 9/24![Delta logo]()
$327
This American Airlines deal was found by Cheapflights users on 9/28. 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.
Thu 12/107:53 am -
1 stop4h 47m
Sun 12/137:43 am -
1 stop7h 26m
Deal found 9/28![American Airlines logo]()
$360
This Southwest deal was found by Cheapflights users on 9/28. 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 11/1211:00 am -
2 stops10h 05m
Tue 11/178:50 am -
2 stops6h 25m
Deal found 9/28![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Fri 11/136:00 am -
2 stops8h 47m
Mon 11/166:00 am -
1 stop3h 54m
Deal found 9/24![United Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Fri 2/1911:40 am -
2 stops7h 54m
Mon 2/228:45 am -
1 stop6h 31m
Deal found 9/24![United Airlines logo]()
$332
This Southwest deal was found by Cheapflights users on 9/28. 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 11/204:00 pm -
2 stops8h 25m
Sat 11/215:35 pm -
1 stop6h 40m
Deal found 9/28![Southwest logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/28. 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 10/285:58 pm -
1 stop4h 32m
Sat 10/312:15 pm -
1 stop6h 36m
Deal found 9/28![United Airlines logo]()
$405
Last-minute flights from Buffalo to LouisvilleDiscover last-minute flight deals from Buffalo to Louisville. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Louisville. Data last updated September 29, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/24. 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 10/1412:45 pm -
1 stop8h 55m
Fri 10/165:40 pm -
1 stop5h 30m
Deal found 9/24![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 9/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:05 am -
1 stop5h 55m
Mon 10/195:40 pm -
1 stop5h 30m
Deal found 9/26![Southwest logo]()
$461
This Delta deal was found by Cheapflights users on 9/25. 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 10/1612:15 pm -
1 stop5h 03m
Mon 10/195:59 pm -
1 stop5h 00m
Deal found 9/25![Delta logo]()
$347
This Southwest deal was found by Cheapflights users on 9/24. 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 10/162:50 pm -
1 stop9h 25m
Sun 10/185:50 pm -
1 stop6h 25m
Deal found 9/24![Southwest logo]()
$407
This American Airlines deal was found by Cheapflights users on 9/24. 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.
Fri 10/1610:35 am -
1 stop7h 03m
Sun 10/186:00 am -
1 stop5h 23m
Deal found 9/24![American Airlines logo]()
$452
This United Airlines deal was found by Cheapflights users on 9/28. 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 10/285:58 pm -
1 stop4h 32m
Sat 10/312:15 pm -
1 stop6h 36m
Deal found 9/28![United Airlines logo]()
$405
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 September 29, 2026.
Search for one-way flight options from Buffalo to Louisville. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Delta deal was found by Cheapflights users on 9/27. 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.
Wed 11/1112:00 pm -
1 stop5h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Delta logo]()
$158
This Southwest deal was found by Cheapflights users on 9/25. 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.
Mon 12/1412:45 pm -
2 stops9h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Southwest logo]()
$163
This American Airlines deal was found by Cheapflights users on 9/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1311:50 am -
1 stop4h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![American Airlines logo]()
$203
This United Airlines deal was found by Cheapflights users on 9/27. 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 11/116:00 am -
2 stops11h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$208
This Southwest deal was found by Cheapflights users on 9/28. 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 10/612:45 pm -
1 stop8h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$305
This Southwest deal was found by Cheapflights users on 9/27. 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.
Sun 10/49:00 am -
1 stop6h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Southwest logo]()
$351
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Tue 10/610:10 am -
3 stops13h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![United Airlines logo]()
$1,212
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 September 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $315 (United Airlines) |
One-way from | $158 (Delta) |
Popular in | June |
Cheapest in | April |
Average price | $404 |
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 September 29, 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
Quickest round-trip
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Wed 11/11
12:00 pm-5:17 pm
1 stop5h 17m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Mon 12/14
2:00 pm-8:30 pm
1 stop6h 30m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$158
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Wed 11/11
6:00 am-5:02 pm
2 stops11h 02m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$208
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Sun 12/13
6:00 am-4:35 pm
2 stops10h 35m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$208
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Tue 10/6
12:45 pm-9:40 pm
1 stop8h 55m
Louisville Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$305
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Thu 11/12
6:00 am-10:34 am
1 stop4h 34m
Louisville Intl
Tue 11/17
10:37 am-5:02 pm
1 stop6h 25m
$315
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Thu 11/12
5:20 am-11:10 am
1 stop5h 50m
Louisville Intl
Thu 11/12
5:10 pm-11:50 pm
1 stop6h 40m
$315
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Thu 11/12
11:00 am-9:05 pm
2 stops10h 05m
Louisville Intl
Tue 11/17
8:50 am-3:15 pm
2 stops6h 25m
$325
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Fri 2/19
10:15 am-4:27 pm
1 stop6h 12m
Louisville Intl
Mon 2/22
6:26 pm-11:05 pm
1 stop4h 39m
$327
BuffaloLouisville
BUF Buffalo - SDF Louisville Intl
BUFSDF
Buffalo
Fri 11/13
6:00 am-2:47 pm
2 stops8h 47m
Louisville Intl
Mon 11/16
6:00 am-9:54 am
1 stop3h 54m
$332
Showing 1-10 of 15 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 September.
| 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.
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 September 29, 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.
Overall
7.8
Boarding
8.1
Crew
8.5
Comfort
7.8
Food
7.2
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.8
Boarding
8.1
Crew
8.5
Comfort
7.8
Food
7.2
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreBarney,May 2026
JFK - ATL
Overall
7.8
Boarding
8.1
Crew
8.5
Comfort
7.8
Food
7.2
Entertainment
7.8
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 locationsShepherdsville
Elizabethtown
Jeffersonville
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Complete your trip
Complete your trip to Louisville by adding a car rental and/or hotel reservation to your travel itinerary.
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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 September 29, 2026.
Buffalo and Louisville flights
Browse other Buffalo and Louisville flight options. Last updated on September 29, 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 September 29, 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 September 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$294 | Average$380 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$300 | Average$375 | FlexibilityNo cancel fee | On-timeN/A |