$83+ Cheap flights from Buffalo to St. Louis (BUF - STL)
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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — STL
Aug 23 — Aug 301
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to St. Louis 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 Buffalo to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Buffalo to St. LouisExplore the most affordable flight options available from Buffalo to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.
Explore the most affordable flight options available from Buffalo to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Thu 8/2011:36 am
BUF
- STL
1 stop6h 46m
Frontier
Sun 8/236:17 pm
STL
- BUF
1 stop15h 12m
Frontier
Deal found 7/19![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 9/111:16 pm
BUF
- STL
1 stop21h 24m
Frontier
Mon 9/1410:35 am
STL
- BUF
1 stop24h 46m
Frontier
Deal found 7/21![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 9/121:16 pm
BUF
- STL
1 stop21h 24m
Frontier
Wed 9/1610:35 am
STL
- BUF
1 stop24h 46m
Frontier
Deal found 7/21![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Sun 8/2311:36 am
BUF
- STL
1 stop6h 46m
Frontier
Sun 8/306:17 pm
STL
- BUF
1 stop15h 12m
Frontier
Deal found 7/24![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Thu 8/2011:36 am
BUF
- STL
1 stop6h 46m
Frontier
Thu 8/276:17 pm
STL
- BUF
1 stop15h 12m
Frontier
Deal found 7/23![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/72:48 pm
BUF
- STL
1 stop19h 09m
Frontier
Mon 8/104:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Deal found 7/20![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Sun 11/81:13 pm
BUF
- STL
1 stop21h 27m
Frontier
Sat 11/1410:35 am
STL
- BUF
1 stop24h 43m
Frontier
Deal found 7/20![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Sat 10/101:13 pm
BUF
- STL
1 stop21h 27m
Frontier
Fri 10/1610:35 am
STL
- BUF
1 stop24h 43m
Frontier
Deal found 7/20![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/72:48 pm
BUF
- STL
1 stop19h 09m
Frontier
Sat 8/154:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Deal found 7/20![Frontier logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/2811:36 am
BUF
- STL
1 stop6h 46m
Frontier
Tue 9/15:27 pm
STL
- BUF
2 stops40h 02m
Frontier
Deal found 7/24![Frontier logo]()
$234
Best flights from Buffalo to St. LouisDiscover carefully curated flight deals from Buffalo to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 24, 2026.
Discover carefully curated flight deals from Buffalo to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/2811:36 am
BUF
- STL
1 stop6h 46m
Frontier
Tue 9/15:27 pm
STL
- BUF
2 stops40h 02m
Frontier
Deal found 7/24![Frontier logo]()
$234
This Southwest deal was found by Cheapflights users on 7/21. 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 8/188:05 am
BUF
- STL
1 stop9h 45m
Southwest
Tue 8/256:30 am
STL
- BUF
2 stops6h 50m
Southwest
Deal found 7/21![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 7/23. 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.
Tue 9/156:20 am
BUF
- STL
1 stop4h 09m
Delta
Fri 9/185:59 pm
STL
- BUF
1 stop4h 54m
Delta
Deal found 7/23![Delta logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Thu 8/2011:36 am
BUF
- STL
1 stop6h 46m
Frontier
Sun 8/236:17 pm
STL
- BUF
2 stops22h 52m
Frontier
Deal found 7/19![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Sat 8/1512:28 pm
BUF
- STL
2 stops27h 28m
Frontier
Mon 8/174:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Deal found 7/19![Frontier logo]()
$298
This Delta deal was found by Cheapflights users on 7/22. 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.
Thu 8/2012:02 pm
BUF
- STL
1 stop6h 36m
Delta
Sun 8/236:30 am
STL
- BUF
1 stop3h 52m
Delta
Deal found 7/22![Delta logo]()
$355
This Southwest deal was found by Cheapflights users on 7/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/83:05 pm
BUF
- STL
2 stops6h 55m
Southwest
Sat 11/147:00 am
STL
- BUF
2 stops6h 55m
Southwest
Deal found 7/20![Southwest logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 8/57:57 pm
BUF
- STL
2 stops22h 40m
Frontier
Mon 8/174:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Deal found 7/19![Frontier logo]()
$322
This Southwest deal was found by Cheapflights users on 7/23. 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 8/203:55 pm
BUF
- STL
2 stops7h 10m
Southwest
Thu 8/2710:10 am
STL
- BUF
2 stops7h 15m
Southwest
Deal found 7/23![Southwest logo]()
$371
Last-minute flights from Buffalo to St. LouisDiscover last-minute flight deals from Buffalo to St. Louis. Data last updated July 24, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to St. Louis. Data last updated July 24, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/19. 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 8/52:48 pm
BUF
- STL
1 stop27h 49m
Frontier
Mon 8/174:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Deal found 7/19![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/72:48 pm
BUF
- STL
1 stop19h 09m
Frontier
Mon 8/104:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Deal found 7/20![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/72:48 pm
BUF
- STL
1 stop19h 09m
Frontier
Sat 8/154:57 pm
STL
- BUF
1 stop16h 32m
Frontier
Deal found 7/20![Frontier logo]()
$217
This CheapOair deal was found by Cheapflights users on 7/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:02 pm
BUF
- STL
1 stop26h 57m
Frontier
Mon 8/174:09 pm
STL
- BUF
1 stop16h 14m
Frontier
Deal found 7/19![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Thu 8/2011:36 am
BUF
- STL
1 stop6h 46m
Frontier
Sun 8/236:17 pm
STL
- BUF
1 stop15h 12m
Frontier
Deal found 7/19![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Thu 8/2011:36 am
BUF
- STL
1 stop6h 46m
Frontier
Thu 8/276:17 pm
STL
- BUF
1 stop15h 12m
Frontier
Deal found 7/23![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 7/24. 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.
Sun 8/2311:36 am
BUF
- STL
1 stop6h 46m
Frontier
Sun 8/306:17 pm
STL
- BUF
1 stop15h 12m
Frontier
Deal found 7/24![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/2811:36 am
BUF
- STL
1 stop6h 46m
Frontier
Tue 9/15:27 pm
STL
- BUF
2 stops40h 02m
Frontier
Deal found 7/24![Frontier logo]()
$234
One-way flights from Buffalo to St. LouisSearch for one-way flight options from Buffalo to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
Search for one-way flight options from Buffalo to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 24, 2026.
This Trip.com deal was found by Cheapflights users on 7/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:36 am
BUF
- STL
1 stop6h 46m
Frontier
Deal found 7/21![Frontier logo]()
$83
This Trip.com deal was found by Cheapflights users on 7/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2011:36 am
BUF
- STL
1 stop6h 46m
Frontier
Deal found 7/20![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Mon 8/2411:36 am
BUF
- STL
1 stop6h 46m
Frontier
Deal found 7/21![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Tue 9/811:36 am
BUF
- STL
1 stop23h 04m
Frontier
Deal found 7/21![Frontier logo]()
$92
This CheapOair deal was found by Cheapflights users on 7/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:54 pm
BUF
- STL
1 stop22h 17m
Frontier
Deal found 7/21![Frontier logo]()
$133
This CheapOair deal was found by Cheapflights users on 7/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:02 pm
BUF
- STL
1 stop26h 57m
Frontier
Deal found 7/23![Frontier logo]()
$134
This Southwest deal was found by Cheapflights users on 7/22. 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 8/258:55 am
BUF
- STL
1 stop6h 55m
Southwest
Deal found 7/22![Southwest logo]()
$152
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/252:53 pm
BUF
- STL
2 stops8h 07m
United Airlines
Deal found 7/22![United Airlines logo]()
$157
This Southwest deal was found by Cheapflights users on 7/21. 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.
Mon 8/245:40 am
BUF
- STL
2 stops10h 30m
Southwest
Deal found 7/21![Southwest logo]()
$163
Find flight deals from Buffalo to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to St. Louis (STL). 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 July 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $164 (Kiwi.com) |
One-way from | $83 (Trip.com) |
Popular in | March |
Cheapest in | January |
Average price | $466 |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo to St. Louis 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 July 24, 2026.
Use the filters below to find and compare flights from Buffalo to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Fri 8/28
11:36 am-5:22 pm
1 stop6h 46m
Lambert-St Louis
Tue 9/1
5:27 pm-10:29 am
2 stops40h 02m
$234
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Thu 8/20
11:36 am-5:22 pm
1 stop6h 46m
Lambert-St Louis
Sun 8/23
6:17 pm-6:09 pm
2 stops22h 52m
$251
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Sat 8/15
12:28 pm-2:56 pm
2 stops27h 28m
Lambert-St Louis
Mon 8/17
4:57 pm-10:29 am
1 stop16h 32m
$298
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Tue 8/18
8:05 am-4:50 pm
1 stop9h 45m
Lambert-St Louis
Tue 8/25
6:30 am-2:20 pm
2 stops6h 50m
$314
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Wed 8/5
7:57 pm-5:37 pm
2 stops22h 40m
Lambert-St Louis
Mon 8/17
4:57 pm-10:29 am
1 stop16h 32m
$322
Quickest round-trip
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Tue 9/15
6:20 am-9:29 am
1 stop4h 09m
Lambert-St Louis
Fri 9/18
5:59 pm-11:53 pm
1 stop4h 54m
$350
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Thu 8/20
12:02 pm-5:38 pm
1 stop6h 36m
Lambert-St Louis
Sun 8/23
6:30 am-11:22 am
1 stop3h 52m
$355
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Sun 11/8
3:05 pm-9:00 pm
2 stops6h 55m
Lambert-St Louis
Sat 11/14
7:00 am-2:55 pm
2 stops6h 55m
$366
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Thu 8/20
3:55 pm-10:05 pm
2 stops7h 10m
Lambert-St Louis
Thu 8/27
10:10 am-6:25 pm
2 stops7h 15m
$371
Cheapest one-way
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Thu 8/20
11:36 am-5:22 pm
1 stop6h 46m
$84
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Buffalo to St. Louis
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 St. Louis in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Buffalo-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-St. Louis 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-St. Louis 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 St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Buffalo with our price prediction graph.
BUF-STL
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 St. Louis
What is the cheapest month to book a flight from Buffalo to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Buffalo to St. Louis (average of $321). Flying from Buffalo to St. Louis in March is currently the most expensive (average of $676). 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 Buffalo to St. Louis?
Airfare is below average for this route at the moment.
Buffalo to St. Louis flights typically cost between $358 and $506 in August.The cheapest round-trip price found within the last 5 days was $164 on Frontier (Aug 20-Aug 23).
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated July 24, 2026.
Read through reviews of airlines operating flights from Buffalo to St. Louis, such as Southwest,Delta, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Food
7.0
Comfort
8.0
Crew
8.6
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Related info for your journey
Find useful and relevant information for your journey from Buffalo to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Farmington
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Buffalo and St. Louis flights
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Top 3 airlines flying from Buffalo to St. Louis
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$166 | Average$412 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$243 | Average$391 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$317 | Average$412 | FlexibilityNo cancel fee | On-time63% |