$94+ Cheap flights from St. Louis to Buffalo (STL - BUF)
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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BUF
Jul 23 — Jul 301
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis 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 St. Louis to Buffalo
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Best
Last-minute
One-way
Cheapest flights from St. Louis to BuffaloExplore the most affordable flight options available from St. Louis to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
Explore the most affordable flight options available from St. Louis to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Sat 8/14:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Mon 8/32:48 pm
BUF
- STL
1 stop27h 49m
Frontier
Deal found 6/21![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 6/20. 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.
Thu 8/136:34 pm
STL
- BUF
1 stop18h 19m
Frontier
Sun 8/1611:29 am
BUF
- STL
1 stop7h 08m
Frontier
Deal found 6/20![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/134:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Wed 7/152:48 pm
BUF
- STL
1 stop27h 49m
Frontier
Deal found 6/22![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 8/286:17 pm
STL
- BUF
1 stop15h 12m
Frontier
Mon 8/3111:36 am
BUF
- STL
1 stop6h 46m
Frontier
Deal found 6/19![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:35 am
STL
- BUF
1 stop24h 46m
Frontier
Mon 9/281:16 pm
BUF
- STL
1 stop21h 24m
Frontier
Deal found 6/22![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/154:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Thu 7/2311:29 am
BUF
- STL
1 stop7h 08m
Frontier
Deal found 6/22![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 8/26:34 pm
STL
- BUF
1 stop18h 19m
Frontier
Sun 8/911:29 am
BUF
- STL
1 stop22h 28m
Frontier
Deal found 6/18![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/126:34 pm
STL
- BUF
1 stop18h 19m
Frontier
Thu 7/1611:29 am
BUF
- STL
1 stop22h 28m
Frontier
Deal found 6/18![Frontier logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/54:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Sat 8/1512:28 pm
BUF
- STL
2 stops12h 31m
Frontier
Deal found 6/22![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:57 pm
STL
- BUF
2 stops25h 09m
Frontier
Fri 8/142:48 pm
BUF
- STL
1 stop19h 09m
Frontier
Deal found 6/22![Frontier logo]()
$252
This Booking.com deal was found by Cheapflights users on 6/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:09 pm
STL
- BUF
1 stop23h 23m
Frontier
Sun 7/269:29 pm
BUF
- STL
1 stop27h 30m
Frontier
Deal found 6/23![Frontier logo]()
$258
Best flights from St. Louis to BuffaloDiscover carefully curated flight deals from St. Louis to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
Discover carefully curated flight deals from St. Louis to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
This Delta deal was found by Cheapflights users on 6/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/252:10 pm
STL
- BUF
1 stop3h 58m
Delta
Sat 8/2912:02 pm
BUF
- STL
1 stop6h 12m
Delta
Deal found 6/21![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 6/18. 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 10/14:15 pm
STL
- BUF
1 stop6h 00m
Southwest
Sat 10/39:50 am
BUF
- STL
1 stop6h 00m
Southwest
Deal found 6/18![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 6/22. 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.
Tue 8/258:50 am
STL
- BUF
1 stop7h 06m
United Airlines
Sat 8/296:55 am
BUF
- STL
1 stop6h 08m
United Airlines
Deal found 6/22![United Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 6/19. 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 9/3010:29 am
STL
- BUF
1 stop3h 44m
Delta
Tue 10/139:00 am
BUF
- STL
1 stop5h 20m
Delta
Deal found 6/19![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 6/22. 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.
Tue 9/81:40 pm
STL
- BUF
1 stop6h 25m
Southwest
Fri 9/116:30 am
BUF
- STL
1 stop6h 30m
Southwest
Deal found 6/22![Southwest logo]()
$345
This Southwest deal was found by Cheapflights users on 6/22. 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 8/512:50 pm
STL
- BUF
2 stops7h 15m
Southwest
Sat 8/156:45 am
BUF
- STL
2 stops9h 45m
Southwest
Deal found 6/22![Southwest logo]()
$351
This Southwest deal was found by Cheapflights users on 6/22. 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 7/174:25 pm
STL
- BUF
2 stops6h 50m
Southwest
Sat 7/256:00 am
BUF
- STL
2 stops7h 55m
Southwest
Deal found 6/22![Southwest logo]()
$365
This Southwest deal was found by Cheapflights users on 6/21. 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.
Sat 8/81:40 pm
STL
- BUF
2 stops6h 25m
Southwest
Sat 8/156:45 am
BUF
- STL
2 stops9h 45m
Southwest
Deal found 6/21![Southwest logo]()
$393
Last-minute flights from St. Louis to BuffaloDiscover last-minute flight deals from St. Louis to Buffalo. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Buffalo. Data last updated June 23, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 7/126:34 pm
STL
- BUF
1 stop18h 19m
Frontier
Thu 7/1611:29 am
BUF
- STL
1 stop22h 28m
Frontier
Deal found 6/18![Frontier logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/134:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Wed 7/152:48 pm
BUF
- STL
1 stop27h 49m
Frontier
Deal found 6/22![Frontier logo]()
$190
This Delta deal was found by Cheapflights users on 6/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:09 pm
STL
- BUF
1 stop4h 49m
Delta
Wed 7/156:29 am
BUF
- STL
1 stop4h 02m
Delta
Deal found 6/22![Delta logo]()
$303
This Southwest deal was found by Cheapflights users on 6/22. 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.
Tue 7/147:40 pm
STL
- BUF
1 stop11h 20m
Southwest
Wed 7/154:20 pm
BUF
- STL
1 stop7h 55m
Southwest
Deal found 6/22![Southwest logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/154:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Thu 7/2311:29 am
BUF
- STL
1 stop7h 08m
Frontier
Deal found 6/22![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/154:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Sun 7/1911:29 am
BUF
- STL
1 stop7h 08m
Frontier
Deal found 6/22![Frontier logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 6/21. 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.
Thu 7/166:34 pm
STL
- BUF
1 stop18h 19m
Frontier
Sun 7/1911:29 am
BUF
- STL
1 stop22h 28m
Frontier
Deal found 6/21![Frontier logo]()
$292
This Booking.com deal was found by Cheapflights users on 6/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:09 pm
STL
- BUF
1 stop23h 23m
Frontier
Sun 7/269:29 pm
BUF
- STL
1 stop27h 30m
Frontier
Deal found 6/23![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 7/314:57 pm
STL
- BUF
1 stop17h 36m
Frontier
Sun 8/211:29 am
BUF
- STL
1 stop7h 08m
Frontier
Deal found 6/20![Frontier logo]()
$280
One-way flights from St. Louis to BuffaloSearch for one-way flight options from St. Louis to Buffalo. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
Search for one-way flight options from St. Louis to Buffalo. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
This Trip.com deal was found by Cheapflights users on 6/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:34 pm
STL
- BUF
1 stop18h 19m
Frontier
Deal found 6/22![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 6/18. 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.
Mon 8/34:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Deal found 6/18![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 6/19. 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.
Wed 7/224:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Deal found 6/19![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 6/23. 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.
Fri 7/174:57 pm
STL
- BUF
1 stop17h 36m
Frontier
Deal found 6/23![Frontier logo]()
$118
This Booking.com deal was found by Cheapflights users on 6/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/254:09 pm
STL
- BUF
1 stop23h 23m
Frontier
Deal found 6/23![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 6/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:34 pm
STL
- BUF
2 stops23h 32m
Frontier
Deal found 6/22![Frontier logo]()
$155
This Southwest deal was found by Cheapflights users on 6/19. 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 7/223:15 pm
STL
- BUF
2 stops6h 30m
Southwest
Deal found 6/19![Southwest logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 7/196:34 pm
STL
- BUF
2 stops23h 32m
Frontier
Deal found 6/19![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 6/23. 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 7/266:34 pm
STL
- BUF
2 stops23h 32m
Frontier
Deal found 6/23![Frontier logo]()
$189
Find flight deals from St. Louis to Buffalo
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 June 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $186 (Kiwi.com) |
One-way from | $94 (Trip.com) |
Popular in | April |
Cheapest in | January |
Average price | $418 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis 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 2,558,603 searches. Data last updated June 23, 2026.
Use the filters below to find and compare flights from St. Louis to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Tue 8/25
2:10 pm-7:08 pm
1 stop3h 58m
Buffalo
Sat 8/29
12:02 pm-5:14 pm
1 stop6h 12m
$303
Quickest round-trip
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Wed 9/30
10:29 am-3:13 pm
1 stop3h 44m
Buffalo
Tue 10/13
9:00 am-1:20 pm
1 stop5h 20m
$303
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Thu 10/1
4:15 pm-11:15 pm
1 stop6h 00m
Buffalo
Sat 10/3
9:50 am-2:50 pm
1 stop6h 00m
$325
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Tue 9/8
1:40 pm-9:05 pm
1 stop6h 25m
Buffalo
Fri 9/11
6:30 am-12:00 pm
1 stop6h 30m
$345
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Wed 8/5
12:50 pm-9:05 pm
2 stops7h 15m
Buffalo
Sat 8/15
6:45 am-3:30 pm
2 stops9h 45m
$351
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Fri 7/17
4:25 pm-12:15 am
2 stops6h 50m
Buffalo
Sat 7/25
6:00 am-12:55 pm
2 stops7h 55m
$365
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Sat 8/8
1:40 pm-9:05 pm
2 stops6h 25m
Buffalo
Sat 8/15
6:45 am-3:30 pm
2 stops9h 45m
$393
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Tue 8/25
8:50 am-4:56 pm
1 stop7h 06m
Buffalo
Sat 8/29
6:55 am-12:03 pm
1 stop6h 08m
$394
Cheapest one-way
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Thu 8/6
6:34 pm-1:53 pm
1 stop18h 19m
$94
St. LouisBuffalo
STL - BUF
STLBUF
Lambert-St Louis
Sun 7/19
6:34 pm-1:53 pm
1 stop18h 19m
$97
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from St. Louis 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 St. Louis to Buffalo in June.
| 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 St. Louis-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Buffalo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-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 St. Louis-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 St. Louis to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from St. Louis with our price prediction graph.
STL-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 St. Louis to Buffalo
How far ahead should I book a flight from St. Louis to Buffalo?
To ensure you get the cheapest price possible for a flight from St. Louis to Buffalo, you should look to book at least 53 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from St. Louis to Buffalo?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Buffalo (average of $329). Flying from St. Louis to Buffalo in April is currently the most expensive (average of $508). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from St. Louis 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 June 23, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andAmerican Airlines from St. Louis to Buffalo to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
7.9
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Overall
7.9
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from St. Louis 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 locationsLockport
Cheektowaga
Amherst
Batavia
Williamsville
Orchard Park
Eden
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St. Louis and Buffalo flights
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Top 4 airlines flying from St. Louis to Buffalo
Discover the top 4 airlines that operate flights from St. Louis 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 2,558,603 searches. Data last updated June 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$115 | Average$126 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$221 | Average$368 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$331 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$308 | Average$425 | FlexibilityNo cancel fee | On-time63% |