$72+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — STL
Mar 5 — Mar 121
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
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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 February 3, 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 February 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/191:39 pm
BUF
- STL
1 stop18h 12m
Frontier
Wed 3/1811:32 am
STL
- BUF
1 stop23h 33m
Frontier
Deal found 2/2![Frontier logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/234:45 pm
BUF
- STL
2 stops39h 06m
Frontier
Wed 3/1811:32 am
STL
- BUF
1 stop23h 33m
Frontier
Deal found 2/2![Frontier logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/214:37 pm
BUF
- STL
1 stop8h 22m
Frontier
Wed 3/1811:32 am
STL
- BUF
1 stop23h 33m
Frontier
Deal found 2/2![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/61:03 pm
BUF
- STL
2 stops21h 46m
Frontier
Sun 3/87:52 am
STL
- BUF
1 stop11h 38m
Frontier
Deal found 2/1![Frontier logo]()
$314
This CheapOair deal was found by Cheapflights users on 2/1. 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.
Fri 4/2411:25 am
BUF
- STL
1 stop12h 54m
Frontier
Wed 4/294:55 pm
STL
- BUF
1 stop25h 18m
Frontier
Deal found 2/1![Frontier logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/81:00 pm
BUF
- STL
1 stop25h 19m
Frontier
Thu 3/129:05 pm
STL
- BUF
2 stops14h 00m
Frontier
Deal found 2/2![Frontier logo]()
$320
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/114:04 pm
BUF
- STL
1 stop5h 12m
American Airlines
Mon 3/163:33 pm
STL
- BUF
1 stop6h 17m
American Airlines
Deal found 2/2![American Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/191:39 pm
BUF
- STL
1 stop18h 12m
Frontier
Sun 3/158:06 pm
STL
- BUF
2 stops13h 58m
Frontier
Deal found 2/2![Frontier logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/191:39 pm
BUF
- STL
1 stop18h 12m
Frontier
Thu 3/194:51 pm
STL
- BUF
2 stops18h 14m
Frontier
Deal found 2/2![Frontier logo]()
$350
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 February 3, 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 February 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/222:19 pm
BUF
- STL
1 stop17h 32m
Frontier
Wed 3/184:51 pm
STL
- BUF
2 stops18h 14m
Frontier
Deal found 2/2![Frontier logo]()
$244
This Delta deal was found by Cheapflights users on 2/2. 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 2/236:45 pm
BUF
- STL
1 stop5h 51m
Delta
Tue 3/175:59 pm
STL
- BUF
1 stop3h 56m
Delta
Deal found 2/2![Delta logo]()
$352
This American Airlines deal was found by Cheapflights users on 2/1. 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.
Mon 3/165:29 pm
BUF
- STL
1 stop4h 52m
American Airlines
Fri 3/206:40 pm
STL
- BUF
1 stop4h 00m
American Airlines
Deal found 2/1![American Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 2/2. 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 8/25:47 pm
BUF
- STL
1 stop4h 24m
United Airlines
Mon 8/31:13 pm
STL
- BUF
1 stop6h 49m
United Airlines
Deal found 2/2![United Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/61:03 pm
BUF
- STL
2 stops21h 46m
Frontier
Sun 3/87:52 am
STL
- BUF
1 stop11h 38m
Frontier
Deal found 2/1![Frontier logo]()
$314
This CheapOair deal was found by Cheapflights users on 2/1. 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.
Fri 4/2411:25 am
BUF
- STL
1 stop12h 54m
Frontier
Wed 4/294:55 pm
STL
- BUF
1 stop25h 18m
Frontier
Deal found 2/1![Frontier logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/81:00 pm
BUF
- STL
1 stop25h 19m
Frontier
Thu 3/129:05 pm
STL
- BUF
2 stops14h 00m
Frontier
Deal found 2/2![Frontier logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/191:39 pm
BUF
- STL
1 stop18h 12m
Frontier
Sun 3/158:06 pm
STL
- BUF
2 stops13h 58m
Frontier
Deal found 2/2![Frontier logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/222:19 pm
BUF
- STL
1 stop17h 32m
Frontier
Thu 3/194:51 pm
STL
- BUF
2 stops18h 14m
Frontier
Deal found 2/2![Frontier logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 4/98:59 pm
BUF
- STL
1 stop11h 52m
Frontier
Sun 4/1211:21 am
STL
- BUF
2 stops21h 46m
Frontier
Deal found 1/31![Frontier logo]()
$359
Last-minute flights from Buffalo to St. LouisDiscover last-minute flight deals from Buffalo to St. Louis. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to St. Louis. Data last updated February 3, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/191:39 pm
BUF
- STL
1 stop18h 12m
Frontier
Wed 3/1811:32 am
STL
- BUF
1 stop23h 33m
Frontier
Deal found 2/2![Frontier logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/191:39 pm
BUF
- STL
1 stop18h 12m
Frontier
Sun 3/158:06 pm
STL
- BUF
2 stops13h 58m
Frontier
Deal found 2/2![Frontier logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/191:39 pm
BUF
- STL
1 stop18h 12m
Frontier
Thu 3/194:51 pm
STL
- BUF
2 stops18h 14m
Frontier
Deal found 2/2![Frontier logo]()
$350
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/214:37 pm
BUF
- STL
1 stop8h 22m
Frontier
Wed 3/1811:32 am
STL
- BUF
1 stop23h 33m
Frontier
Deal found 2/2![Frontier logo]()
$268
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/234:45 pm
BUF
- STL
2 stops39h 06m
Frontier
Wed 3/1811:32 am
STL
- BUF
1 stop23h 33m
Frontier
Deal found 2/2![Frontier logo]()
$246
This Delta deal was found by Cheapflights users on 2/2. 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 2/232:58 pm
BUF
- STL
1 stop6h 11m
Delta
Wed 3/185:15 pm
STL
- BUF
1 stop4h 58m
Delta
Deal found 2/2![Delta logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/61:03 pm
BUF
- STL
2 stops21h 46m
Frontier
Sun 3/87:52 am
STL
- BUF
1 stop11h 38m
Frontier
Deal found 2/1![Frontier logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/81:00 pm
BUF
- STL
1 stop25h 19m
Frontier
Thu 3/129:05 pm
STL
- BUF
2 stops14h 00m
Frontier
Deal found 2/2![Frontier logo]()
$320
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/114:04 pm
BUF
- STL
1 stop5h 12m
American Airlines
Mon 3/163:33 pm
STL
- BUF
1 stop6h 17m
American Airlines
Deal found 2/2![American Airlines logo]()
$342
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 February 3, 2026.
Search for one-way flight options from Buffalo to St. Louis. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Trip.com deal was found by Cheapflights users on 2/2. 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 2/191:39 pm
BUF
- STL
1 stop18h 12m
Frontier
Deal found 2/2![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/201:29 pm
BUF
- STL
1 stop18h 22m
Frontier
Deal found 2/2![Frontier logo]()
$80
This CheapOair deal was found by Cheapflights users on 2/2. 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.
Mon 3/169:25 pm
BUF
- STL
1 stop26h 54m
Frontier
Deal found 2/2![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/201:29 pm
BUF
- STL
2 stops11h 58m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/216:40 pm
BUF
- STL
2 stops37h 11m
Frontier
Deal found 2/2![Frontier logo]()
$151
This CheapOair deal was found by Cheapflights users on 2/3. 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.
Tue 2/107:17 pm
BUF
- STL
1 stop28h 10m
Frontier
Deal found 2/3![Frontier logo]()
$153
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2211:34 am
BUF
- STL
1 stop13h 25m
Frontier
Deal found 2/1![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 2/177:17 pm
BUF
- STL
1 stop28h 10m
Frontier
Deal found 2/2![Frontier logo]()
$179
This Southwest deal was found by Cheapflights users on 2/1. 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 2/2210:50 am
BUF
- STL
2 stops7h 25m
Southwest
Deal found 2/1![Southwest logo]()
$216
This Delta deal was found by Cheapflights users on 2/2. 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 2/1810:32 am
BUF
- STL
1 stop7h 20m
Delta
Deal found 2/2![Delta logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 2/2211:34 am
BUF
- STL
3 stops32h 02m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$227
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 February 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $203 (Kiwi.com) |
One-way from | $72 (Trip.com) |
Popular in | February |
Cheapest in | September |
Average price | $388 |
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 February 3, 2026.
Use the filters below to find and compare flights from Buffalo to St. Louis that are best for you.
Fly from
Buffalo
Fly to
St. Louis
Route
Depart
Return
Price
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Sun 2/22
2:19 pm-6:51 am
1 stop17h 32m
Lambert-St Louis
Wed 3/18
4:51 pm-12:05 pm
2 stops18h 14m
$244
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Fri 3/6
1:03 pm-9:49 am
2 stops21h 46m
Lambert-St Louis
Sun 3/8
7:52 am-8:30 pm
1 stop11h 38m
$314
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Fri 4/24
11:25 am-11:19 pm
1 stop12h 54m
Lambert-St Louis
Wed 4/29
4:55 pm-7:13 pm
1 stop25h 18m
$316
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Sun 3/8
1:00 pm-1:19 pm
1 stop25h 19m
Lambert-St Louis
Thu 3/12
9:05 pm-12:05 pm
2 stops14h 00m
$320
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Thu 2/19
1:39 pm-6:51 am
1 stop18h 12m
Lambert-St Louis
Sun 3/15
8:06 pm-11:04 am
2 stops13h 58m
$344
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Sun 2/22
2:19 pm-6:51 am
1 stop17h 32m
Lambert-St Louis
Thu 3/19
4:51 pm-12:05 pm
2 stops18h 14m
$350
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Mon 2/23
6:45 pm-11:36 pm
1 stop5h 51m
Lambert-St Louis
Tue 3/17
5:59 pm-10:55 pm
1 stop3h 56m
$352
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Thu 4/9
8:59 pm-7:51 am
1 stop11h 52m
Lambert-St Louis
Sun 4/12
11:21 am-10:07 am
2 stops21h 46m
$359
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Mon 3/16
5:29 pm-9:21 pm
1 stop4h 52m
Lambert-St Louis
Fri 3/20
6:40 pm-11:40 pm
1 stop4h 00m
$365
BuffaloSt. Louis
BUF - STL
BUFSTL
Buffalo
Sun 8/2
5:47 pm-9:11 pm
1 stop4h 24m
Lambert-St Louis
Mon 8/3
1:13 pm-9:02 pm
1 stop6h 49m
$367
Showing 1-10 of 21 results
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 February.
| 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
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 February 3, 2026.
Read through reviews of airlines operating flights from Buffalo to St. Louis, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Entertainment
7.5
Crew
8.6
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus
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Alternative routes for Buffalo to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Buffalo to St. Louis
Discover the top 3 airlines that operate flights from Buffalo to St. Louis. 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 February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$164 | Average$346 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$243 | Average$341 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$338 | Average$406 | FlexibilityNo cancel fee | On-time63% |