$132+ Cheap flights from Buffalo to St. Louis (BUF - STL)
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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — STL
Nov 29 — Dec 61
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
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Best
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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 October 30, 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 October 30, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:20 am -
1 stop4h 45m
Tue 12/12:25 pm -
1 stop5h 30m
Deal found 10/25![Southwest logo]()
$271
This CheapOair deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:20 pm -
1 stop16h 05m
Fri 11/271:20 pm -
1 stop6h 04m
Deal found 10/28![Frontier logo]()
$273
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/126:00 am -
2 stops8h 40m
Mon 12/146:20 am -
1 stop3h 20m
Deal found 10/25![Southwest logo]()
$276
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:10 pm -
1 stop4h 40m
Mon 12/146:35 am -
1 stop4h 30m
Deal found 10/26![Southwest logo]()
$291
This Delta deal was found by Cheapflights users on 10/29. 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 12/212:06 pm -
1 stop6h 14m
Sun 12/66:32 am -
1 stop3h 52m
Deal found 10/29![Delta logo]()
$318
This Southwest deal was found by Cheapflights users on 10/29. 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 12/212:45 pm -
2 stops7h 40m
Sun 12/63:20 pm -
1 stop8h 45m
Deal found 10/29![Southwest logo]()
$323
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/253:55 pm -
1 stop7h 20m
Wed 12/303:55 pm -
1 stop5h 40m
Deal found 10/25![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:20 am -
1 stop3h 45m
Fri 11/274:40 pm -
2 stops6h 10m
Deal found 10/28![Southwest logo]()
$339
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 October 30, 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 October 30, 2026.
This Delta deal was found by Cheapflights users on 10/29. 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 12/212:06 pm -
1 stop6h 14m
Sat 12/55:31 pm -
1 stop5h 33m
Deal found 10/29![Delta logo]()
$271
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/119:05 am -
2 stops11h 05m
Mon 12/142:20 pm -
2 stops6h 40m
Deal found 10/26![Southwest logo]()
$297
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.
Tue 11/246:00 am -
2 stops10h 43m
Tue 12/16:30 am -
2 stops6h 50m
Deal found 10/25![United Airlines logo]()
$455
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/253:55 pm -
1 stop7h 20m
Wed 12/303:55 pm -
1 stop5h 40m
Deal found 10/25![Southwest logo]()
$325
This Delta deal was found by Cheapflights users on 10/29. 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 3/35:55 pm -
1 stop3h 42m
Sun 3/76:45 am -
1 stop3h 59m
Deal found 10/29![Delta logo]()
$363
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:00 am -
2 stops9h 10m
Fri 11/274:40 pm -
2 stops6h 10m
Deal found 10/28![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:20 am -
1 stop3h 45m
Sun 11/153:20 pm -
1 stop8h 45m
Deal found 10/27![Southwest logo]()
$512
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:20 am -
1 stop3h 45m
Thu 11/125:45 am -
1 stop3h 40m
Deal found 10/26![Southwest logo]()
$512
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:20 am -
1 stop3h 45m
Fri 11/138:30 am -
1 stop5h 45m
Deal found 10/25![Southwest logo]()
$512
Last-minute flights from Buffalo to St. LouisDiscover last-minute flight deals from Buffalo to St. Louis. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to St. Louis. Data last updated October 30, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:39 pm -
1 stop11h 37m
Sat 11/74:26 pm -
1 stop24h 26m
Deal found 10/28![Frontier logo]()
$341
This CheapOair deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:20 pm -
1 stop16h 05m
Fri 11/271:20 pm -
1 stop6h 04m
Deal found 10/28![Frontier logo]()
$273
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/227:20 am -
1 stop3h 45m
Fri 11/274:40 pm -
2 stops6h 10m
Deal found 10/28![Southwest logo]()
$339
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:31 am -
1 stop5h 37m
Sat 11/285:50 am -
1 stop4h 10m
Deal found 10/29![American Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 10/29. 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 11/2211:00 am -
2 stops9h 10m
Sat 11/285:35 am -
1 stop6h 45m
Deal found 10/29![Southwest logo]()
$453
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:20 am -
1 stop4h 45m
Tue 12/12:25 pm -
1 stop5h 30m
Deal found 10/25![Southwest logo]()
$271
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.
Tue 11/246:00 am -
2 stops10h 43m
Tue 12/16:30 am -
2 stops6h 50m
Deal found 10/25![United Airlines logo]()
$455
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 11/286:02 am -
1 stop5h 42m
Sat 12/51:43 pm -
1 stop7h 06m
Deal found 10/29![American Airlines logo]()
$378
This Southwest deal was found by Cheapflights users on 10/29. 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 11/285:45 am -
1 stop4h 35m
Sat 12/55:45 am -
2 stops6h 45m
Deal found 10/29![Southwest logo]()
$389
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 October 30, 2026.
Search for one-way flight options from Buffalo to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Frontier deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/112:30 pm -
1 stop10h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$132
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/192:34 pm -
1 stop5h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$133
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:36 pm -
1 stop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Delta logo]()
$136
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:45 pm -
2 stops7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Southwest logo]()
$141
This Priceline deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1512:54 pm -
1 stop11h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$166
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/197:05 am -
2 stops11h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Southwest logo]()
$168
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/117:00 am -
2 stops13h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![United Airlines logo]()
$238
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:20 am -
1 stop3h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest logo]()
$254
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1411:26 am -
1 stop6h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![American Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/141:10 pm -
2 stops8h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Southwest logo]()
$264
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 12/285:35 pm -
1 stop4h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![United Airlines logo]()
$558
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (Southwest) |
One-way from | $132 (Frontier) |
Popular in | March |
Cheapest in | December |
Average price | $396 |
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 7,457,451 searches. Data last updated October 30, 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 Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Wed 11/18
6:36 pm-11:56 pm
1 stop6h 20m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$136
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Wed 11/18
12:45 pm-7:25 pm
2 stops7h 40m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$141
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Thu 11/19
7:05 am-5:25 pm
2 stops11h 20m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$168
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Sat 11/14
11:26 am-4:46 pm
1 stop6h 20m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$259
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Mon 11/9
12:40 pm-9:00 pm
2 stops9h 20m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$264
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Sat 11/14
1:10 pm-8:10 pm
2 stops8h 00m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$264
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Wed 12/2
12:06 pm-5:20 pm
1 stop6h 14m
Lambert-St Louis
Sat 12/5
5:31 pm-12:04 am
1 stop5h 33m
$271
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Fri 12/11
9:05 am-7:10 pm
2 stops11h 05m
Lambert-St Louis
Mon 12/14
2:20 pm-10:00 pm
2 stops6h 40m
$297
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Fri 12/25
3:55 pm-10:15 pm
1 stop7h 20m
Lambert-St Louis
Wed 12/30
3:55 pm-10:35 pm
1 stop5h 40m
$325
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Sun 11/22
11:00 am-7:10 pm
2 stops9h 10m
Lambert-St Louis
Fri 11/27
4:40 pm-11:50 pm
2 stops6h 10m
$348
Showing 1-10 of 20 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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 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, December is the cheapest month in which you can book a flight from Buffalo to St. Louis (average of $340). 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 $328 and $446 in November.The cheapest round-trip price found within the last 5 days was $271 on Southwest (Nov 24-Dec 1).
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 October 30, 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.
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Overall
7.9
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Food
7.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - 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 locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Collinsville
Edwardsville
Glencoe
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Buffalo and St. Louis flights
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$261 | Average$423 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$264 | Average$391 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$317 | Average$413 | FlexibilityNo cancel fee | On-time63% |