$126+ Cheap flights from Louisville to Buffalo (SDF - BUF)
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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BUF
Nov 25 — Dec 21
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Louisville to Buffalo 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Louisville to Buffalo
Cheapest
Best
Last-minute
One-way
Cheapest flights from Louisville to BuffaloExplore the most affordable flight options available from Louisville to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Louisville to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This Southwest deal was found by Cheapflights users on 10/23. 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 11/124:40 pm -
1 stop4h 35m
Sun 11/154:00 pm -
1 stop5h 05m
Deal found 10/23![Southwest logo]()
$266
This Southwest deal was found by Cheapflights users on 10/22. 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.
Wed 12/98:50 am -
2 stops6h 25m
Sun 12/135:20 am -
1 stop5h 50m
Deal found 10/22![Southwest logo]()
$271
This Southwest deal was found by Cheapflights users on 10/22. 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.
Fri 11/134:40 pm -
2 stops7h 10m
Mon 11/167:25 am -
1 stop5h 35m
Deal found 10/22![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:29 pm -
1 stop5h 33m
Mon 12/285:50 pm -
1 stop3h 33m
Deal found 10/23![Delta logo]()
$335
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/207:20 am -
1 stop4h 07m
Mon 12/285:50 pm -
1 stop3h 33m
Deal found 10/23![Delta logo]()
$385
This Southwest deal was found by Cheapflights users on 10/23. 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.
Sat 12/195:35 pm -
1 stop6h 40m
Sun 12/275:40 pm -
1 stop6h 50m
Deal found 10/23![Southwest logo]()
$390
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/286:29 pm -
1 stop5h 33m
Tue 12/296:00 am -
1 stop4h 47m
Deal found 10/23![Delta logo]()
$395
This Southwest deal was found by Cheapflights users on 10/21. 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 11/54:40 pm -
1 stop4h 35m
Mon 11/95:30 pm -
1 stop6h 55m
Deal found 10/21![Southwest logo]()
$410
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/510:27 am -
2 stops8h 38m
Mon 11/95:58 pm -
1 stop4h 32m
Deal found 10/21![United Airlines logo]()
$415
Best flights from Louisville to BuffaloDiscover carefully curated flight deals from Louisville to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Louisville to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This Southwest deal was found by Cheapflights users on 10/22. 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.
Fri 11/134:40 pm -
1 stop4h 35m
Mon 11/163:55 pm -
1 stop6h 20m
Deal found 10/22![Southwest logo]()
$266
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:29 pm -
1 stop5h 33m
Mon 12/285:50 pm -
1 stop3h 33m
Deal found 10/23![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/510:27 am -
2 stops8h 38m
Mon 11/95:58 pm -
1 stop4h 32m
Deal found 10/21![United Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 10/23. 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 11/124:40 pm -
1 stop4h 35m
Sun 11/154:00 pm -
1 stop5h 05m
Deal found 10/23![Southwest logo]()
$266
This Southwest deal was found by Cheapflights users on 10/22. 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.
Wed 12/98:50 am -
2 stops6h 25m
Sun 12/135:20 am -
1 stop5h 50m
Deal found 10/22![Southwest logo]()
$271
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/196:29 pm -
1 stop5h 33m
Sat 12/266:00 am -
1 stop4h 47m
Deal found 10/23![Delta logo]()
$421
This United Airlines deal was found by Cheapflights users on 10/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:18 pm -
1 stop4h 41m
Mon 11/305:58 pm -
1 stop4h 32m
Deal found 10/25![United Airlines logo]()
$509
This Southwest deal was found by Cheapflights users on 10/21. 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.
Wed 11/254:15 pm -
2 stops7h 35m
Sun 11/299:55 pm -
1 stop13h 05m
Deal found 10/21![Southwest logo]()
$456
This Delta deal was found by Cheapflights users on 10/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/266:29 pm -
1 stop5h 33m
Mon 12/285:50 pm -
1 stop3h 33m
Deal found 10/23![Delta logo]()
$505
This Southwest deal was found by Cheapflights users on 10/23. 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.
Sun 12/275:40 am -
1 stop8h 15m
Mon 12/286:05 am -
2 stops9h 30m
Deal found 10/23![Southwest logo]()
$506
Last-minute flights from Louisville to BuffaloDiscover last-minute flight deals from Louisville to Buffalo. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to Buffalo. Data last updated October 26, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/21. 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 11/54:40 pm -
1 stop4h 35m
Mon 11/95:30 pm -
1 stop6h 55m
Deal found 10/21![Southwest logo]()
$410
This United Airlines deal was found by Cheapflights users on 10/21. 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 11/510:27 am -
2 stops8h 38m
Mon 11/95:58 pm -
1 stop4h 32m
Deal found 10/21![United Airlines logo]()
$415
This Southwest deal was found by Cheapflights users on 10/23. 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 11/124:40 pm -
1 stop4h 35m
Sun 11/154:00 pm -
1 stop5h 05m
Deal found 10/23![Southwest logo]()
$266
This Southwest deal was found by Cheapflights users on 10/22. 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.
Fri 11/134:40 pm -
2 stops7h 10m
Mon 11/167:25 am -
1 stop5h 35m
Deal found 10/22![Southwest logo]()
$314
This United Airlines deal was found by Cheapflights users on 10/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:18 pm -
1 stop4h 41m
Mon 11/305:58 pm -
1 stop4h 32m
Deal found 10/22![United Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 10/21. 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.
Wed 11/254:15 pm -
1 stop6h 20m
Sun 11/299:55 pm -
1 stop13h 05m
Deal found 10/21![Southwest logo]()
$450
One-way flights from Louisville to BuffaloSearch for one-way flight options from Louisville to Buffalo. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Louisville to Buffalo. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Southwest deal was found by Cheapflights users on 10/23. 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 11/124:40 pm -
1 stop4h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Southwest logo]()
$126
This Southwest deal was found by Cheapflights users on 10/21. 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.
Tue 1/58:50 am -
2 stops9h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Southwest logo]()
$131
This United Airlines deal was found by Cheapflights users on 10/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:00 am -
1 stop3h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 10/23. 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.
Sun 11/158:37 pm -
2 stops16h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$245
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 1/53:25 pm -
3 stops25h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$358
This United Airlines deal was found by Cheapflights users on 10/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:00 am -
3 stops11h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$959
Find flight deals from Louisville to Buffalo
Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Buffalo (BUF). 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 October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $266 (Southwest) |
One-way from | $126 (Southwest) |
Popular in | March |
Cheapest in | October |
Average price | $329 |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to Buffalo 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 October 26, 2026.
Use the filters below to find and compare flights from Louisville to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Thu 11/12
4:40 pm-9:15 pm
1 stop4h 35m
Buffalo
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$126
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Tue 1/5
6:26 pm-11:05 pm
1 stop4h 39m
Buffalo
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$126
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Tue 1/5
8:50 am-6:10 pm
2 stops9h 20m
Buffalo
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$131
Quickest round-trip
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Sun 11/15
6:00 am-9:54 am
1 stop3h 54m
Buffalo
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$176
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Fri 11/13
4:40 pm-9:15 pm
1 stop4h 35m
Buffalo
Mon 11/16
3:55 pm-10:15 pm
1 stop6h 20m
$266
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Thu 11/12
4:40 pm-9:15 pm
1 stop4h 35m
Buffalo
Sun 11/15
4:00 pm-9:05 pm
1 stop5h 05m
$266
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Wed 12/9
8:50 am-3:15 pm
2 stops6h 25m
Buffalo
Sun 12/13
5:20 am-11:10 am
1 stop5h 50m
$271
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Sat 12/19
6:29 pm-12:02 am
1 stop5h 33m
Buffalo
Mon 12/28
5:50 pm-9:23 pm
1 stop3h 33m
$335
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Tue 1/5
3:25 pm-4:51 pm
3 stops25h 26m
Buffalo
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$358
LouisvilleBuffalo
SDF Louisville Intl - BUF Buffalo
SDFBUF
Louisville Intl
Thu 11/5
10:27 am-7:05 pm
2 stops8h 38m
Buffalo
Mon 11/9
5:58 pm-10:30 pm
1 stop4h 32m
$415
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Louisville to Buffalo
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 Louisville to Buffalo in October.
| 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 Louisville-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Buffalo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Louisville-Buffalo 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 Louisville-Buffalo 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 Louisville to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from Louisville with our price prediction graph.
SDF-BUF
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 Louisville to Buffalo
Reviews of airlines servicing Buffalo
Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated October 26, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andAmerican Airlines from Louisville to Buffalo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Comfort
8.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Food
7.0
Comfort
8.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Food
7.0
Comfort
8.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Food
7.0
Comfort
8.0
Entertainment
7.4
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentPatricia,Oct 2026
DAL - TPA
Related info for your journey
Find useful and relevant information for your journey from Louisville to Buffalo. 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 Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsCheektowaga
Lockport
Amherst
Williamsville
Orchard Park
Eden
Bowmansville
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Buffalo flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Louisville
Popular flights
Alternative routes for Louisville to Buffalo
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Buffalo
Explore flights to Buffalo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
Complete your trip
Complete your trip to Buffalo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Louisville to Buffalo by cabin class
Find flights from Louisville to Buffalo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Louisville and Buffalo flights
Browse other Louisville and Buffalo flight options. Last updated on October 26, 2026.
Other flights from Louisville
Browse through other flights departing from Louisville. Flights are based on user searches made on Cheapflights and were last updated on October 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Louisville to Buffalo
Discover the top 3 airlines that operate flights from Louisville to Buffalo. 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 October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$239 | Average$494 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$262 | Average$455 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$326 | Average$529 | FlexibilityNo cancel fee | On-time71% |