Cheap flights from Buffalo to St. Louis (BUF - STL) from $88

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 2/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BUF — STL
feb. 27 — mar. 51

The best prices from Buffalo to Lambert-St Louis are usually found in October or January, booked 39 days in advance, depart on a Monday or Friday and return on a Wednesday

Cheap 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 febrero 22, 2024.

Popular in

March

Cheapest in

October

Round-trip from

$323

One-way from

$171
High demand for flights, 17% potential price rise
Best time to find cheap flights, 21% potential price drop
From Buffalo to Lambert-St Louis
One-way flight from Buffalo to Lambert-St Louis

What is the cheapest day to fly round-trip from Buffalo to St. Louis?

Friday flights are found to be more expensive to fly from Buffalo to St. Louis. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to St. Louis.

How far in advance should I book a flight from Buffalo to St. Louis?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 40 days in advance, which can save you up to 238% on flights from Buffalo to St. Louis compared to booking the week you need them. Waiting 40 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $231. For sooner than that we have options available in the next 3 days from $502.

What is the cheapest month to fly from Buffalo to St. Louis?

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, October can be a great choice for travel to St. Louis. Flights to St. Louis from Buffalo in October are about $380 on average during October, but can be found for as low as $205.

When is the cheapest time to fly from Buffalo to St. Louis (BUF - STL)?

One of the essential ways to save on airfare from Buffalo to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

Cheap Frontier flights from Buffalo to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Buffalo and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,442,422 searches. Data last updated febrero 22, 2024.
Consider these cheap Frontier flights we've found departing from Buffalo to St. Louis. It's recommended that users confirm their flight details before booking.
jue. 5/98:36 amBUF - STL
1 stop23h 37mFrontier
dom. 5/127:16 pmSTL - BUF
1 stop11h 39mFrontier
Deal found 2/21$192
sáb. 4/278:28 pmBUF - STL
1 stop11h 45mFrontier
lun. 4/299:34 pmSTL - BUF
1 stop9h 12mFrontier
Deal found 2/21$199
vie. 4/2611:04 amBUF - STL
1 stop23h 43mFrontier
dom. 4/287:16 pmSTL - BUF
1 stop11h 39mFrontier
Deal found 2/21$205
lun. 3/49:41 pmBUF - STL
1 stop11h 06mFrontier
sáb. 3/304:07 pmSTL - BUF
1 stop25h 21mFrontier
Deal found 2/22$206
vie. 4/2611:08 amBUF - STL
1 stop23h 39mFrontier
dom. 4/287:16 pmSTL - BUF
1 stop11h 39mFrontier
Deal found 2/22$208
lun. 3/49:41 pmBUF - STL
1 stop11h 06mFrontier
jue. 3/78:24 pmSTL - BUF
1 stop23h 27mFrontier
Deal found 2/21$229
lun. 3/189:40 pmBUF - STL
1 stop11h 41mFrontier
vie. 3/221:17 pmSTL - BUF
1 stop6h 34mFrontier
Deal found 2/22$237
vie. 3/229:51 pmBUF - STL
1 stop10h 12mFrontier
vie. 3/291:17 pmSTL - BUF
1 stop6h 34mFrontier
Deal found 2/21$242
mar. 3/512:18 pmBUF - STL
1 stop20h 29mFrontier
vie. 3/88:24 pmSTL - BUF
1 stop23h 44mFrontier
Deal found 2/22$249

Cheap American Airlines flights from Buffalo to St. Louis

Explore cheap flight options specifically provided by American Airlines for the route between Buffalo and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,442,422 searches. Data last updated febrero 22, 2024.
Have a look at some of the cheapest available American Airlines flights departing from Buffalo and landing in St. Louis. Make sure to examine the flight information before completing your reservation.
vie. 4/56:00 amBUF - STL
1 stop5h 13mAmerican Airlines
mar. 4/98:00 amSTL - BUF
1 stop7h 10mAmerican Airlines
Deal found 2/22$315
sáb. 4/278:59 amBUF - STL
2 stops7h 50mAmerican Airlines
lun. 4/294:01 pmSTL - BUF
1 stop6h 36mAmerican Airlines
Deal found 2/21$324
vie. 4/266:00 amBUF - STL
1 stop5h 13mAmerican Airlines
vie. 4/264:01 pmSTL - BUF
1 stop5h 37mAmerican Airlines
Deal found 2/22$330
jue. 3/215:28 pmBUF - STL
1 stop4h 51mAmerican Airlines
lun. 3/255:57 pmSTL - BUF
1 stop4h 17mAmerican Airlines
Deal found 2/22$332
lun. 3/45:55 amBUF - STL
2 stops9h 15mAmerican Airlines
sáb. 3/304:26 pmSTL - BUF
1 stop7h 12mAmerican Airlines
Deal found 2/22$476
lun. 3/45:55 amBUF - STL
2 stops9h 15mAmerican Airlines
jue. 3/77:10 amSTL - BUF
2 stops7h 54mAmerican Airlines
Deal found 2/21$542
lun. 4/15:45 amBUF - STL
1 stop8h 08mAmerican Airlines
jue. 4/48:09 amSTL - BUF
1 stop7h 01mAmerican Airlines
Deal found 2/21$566
vie. 3/225:45 amBUF - STL
2 stops9h 07mAmerican Airlines
vie. 3/299:17 amSTL - BUF
1 stop7h 17mAmerican Airlines
Deal found 2/21$569
lun. 3/45:55 amBUF - STL
2 stops9h 08mAmerican Airlines
sáb. 3/304:26 pmSTL - BUF
2 stops28h 34mAmerican Airlines
Deal found 2/22$570

Cheap Buffalo to St. Louis flights in February & March 2024

Find cheap flight options from Buffalo to St. Louis specifically for the months of February and March 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,442,422 searches. Prices were last updated on febrero 22, 2024.
Check out some of the best flight deals from Buffalo to St. Louis in 2024. Check back regularly for other flight deals.
jue. 3/2111:04 amBUF - STL
1 stop22h 17mMultiple Airlines
lun. 3/255:35 pmSTL - BUF
1 stop23h 53mMultiple Airlines
Deal found 2/20$222
lun. 3/49:41 pmBUF - STL
1 stop11h 06mFrontier
jue. 3/78:24 pmSTL - BUF
1 stop23h 27mFrontier
Deal found 2/21$229
vie. 3/229:51 pmBUF - STL
1 stop10h 12mFrontier
vie. 3/291:17 pmSTL - BUF
1 stop6h 34mFrontier
Deal found 2/21$242
lun. 2/269:41 pmBUF - STL
1 stop11h 06mFrontier
mar. 2/277:32 pmSTL - BUF
1 stop18h 36mFrontier
Deal found 2/21$298
dom. 2/259:55 pmBUF - STL
1 stop10h 52mFrontier
mar. 2/277:32 pmSTL - BUF
1 stop18h 36mFrontier
Deal found 2/21$305
lun. 2/269:41 pmBUF - STL
1 stop11h 06mFrontier
mar. 2/277:32 pmSTL - BUF
1 stop18h 36mFrontier
Deal found 2/22$318
dom. 2/256:12 pmBUF - STL
2 stops39h 48mFrontier
mar. 2/277:32 pmSTL - BUF
1 stop18h 36mFrontier
Deal found 2/21$388
lun. 3/49:41 pmBUF - STL
1 stop11h 06mFrontier
vie. 3/88:45 pmSTL - BUF
2 stops23h 23mFrontier
Deal found 2/21$398
lun. 3/49:41 pmBUF - STL
1 stop11h 06mFrontier
jue. 3/711:15 pmSTL - BUF
2 stops20h 36mFrontier
Deal found 2/21$409

Buffalo to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Buffalo and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,442,422 searches. Data last updated febrero 22, 2024.
Check out some of the best flight deals from Buffalo to St. Louis in 2024. Check back regularly for other flight deals.
jue. 5/98:36 amBUF - STL
1 stop23h 37mFrontier
dom. 5/127:16 pmSTL - BUF
1 stop11h 39mFrontier
Deal found 2/21$192
dom. 5/58:36 amBUF - STL
1 stop10h 42mMultiple Airlines
mié. 5/89:53 pmSTL - BUF
1 stop8h 53mMultiple Airlines
Deal found 2/21$197
sáb. 4/278:28 pmBUF - STL
1 stop11h 45mFrontier
lun. 4/299:34 pmSTL - BUF
1 stop9h 12mFrontier
Deal found 2/21$199
vie. 4/2611:04 amBUF - STL
1 stop23h 43mFrontier
dom. 4/287:16 pmSTL - BUF
1 stop11h 39mFrontier
Deal found 2/21$205
vie. 4/2611:08 amBUF - STL
1 stop23h 39mFrontier
dom. 4/287:16 pmSTL - BUF
1 stop11h 39mFrontier
Deal found 2/22$208
jue. 3/2111:04 amBUF - STL
1 stop22h 17mMultiple Airlines
lun. 3/255:35 pmSTL - BUF
1 stop23h 53mMultiple Airlines
Deal found 2/20$222
lun. 3/49:41 pmBUF - STL
1 stop11h 06mFrontier
jue. 3/78:24 pmSTL - BUF
1 stop23h 27mFrontier
Deal found 2/21$229
vie. 3/229:51 pmBUF - STL
1 stop10h 12mFrontier
vie. 3/291:17 pmSTL - BUF
1 stop6h 34mFrontier
Deal found 2/21$242
lun. 2/269:41 pmBUF - STL
1 stop11h 06mFrontier
mar. 2/277:32 pmSTL - BUF
1 stop18h 36mFrontier
Deal found 2/21$298

One-way flights to St. Louis from Buffalo

Search for one-way flight options from Buffalo to St. Louis. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,442,422 searches. Data last updated febrero 22, 2024.
If you're seeking multiple options on one-way flights from Buffalo to St. Louis, be sure to check out these deals, which are updated often. For those needing a return trip from Buffalo, there is a search form available above.
mar. 2/2712:18 pmBUF - STL
1 stop20h 29mFrontier
Deal found 2/20$88
sáb. 3/239:58 pmBUF - STL
1 stop11h 23mFrontier
Deal found 2/21$106
dom. 3/2411:04 amBUF - STL
1 stop21h 19mFrontier
Deal found 2/21$116
jue. 3/2111:04 amBUF - STL
1 stop22h 17mFrontier
Deal found 2/20$118
mar. 3/512:18 pmBUF - STL
1 stop20h 29mFrontier
Deal found 2/21$127
mar. 3/56:46 pmBUF - STL
3 stops26h 27mMultiple Airlines
Deal found 2/21$135
mar. 2/2712:18 pmBUF - STL
2 stops21h 42mFrontier
Deal found 2/20$156
mar. 3/512:18 pmBUF - STL
2 stops21h 42mFrontier
Deal found 2/21$171
sáb. 6/85:51 pmBUF - STL
1 stop4h 16mAmerican Airlines
Deal found 2/21$182

Find flights from Buffalo to St. Louis within your budget

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 3,442,422 searches. Data last updated febrero 22, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$192 - $405

Route

Depart

Return

Price

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

jue. 5/9

1 stop23h 37m

Lambert-St Louis

dom. 5/12

1 stop11h 39m

$192

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

dom. 5/5

1 stop10h 42m

Lambert-St Louis

mié. 5/8

1 stop8h 53m

$197

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

sáb. 4/27

1 stop11h 45m

Lambert-St Louis

lun. 4/29

1 stop9h 12m

$199

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

vie. 4/26

1 stop23h 43m

Lambert-St Louis

dom. 4/28

1 stop11h 39m

$205

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

lun. 3/4

1 stop11h 06m

Lambert-St Louis

sáb. 3/30

1 stop25h 21m

$206

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

jue. 3/21

1 stop22h 17m

Lambert-St Louis

lun. 3/25

1 stop23h 53m

$222

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

mar. 4/23

1 stop7h 34m

Lambert-St Louis

mié. 4/24

1 stop6h 24m

$302

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

vie. 4/5

1 stop5h 13m

Lambert-St Louis

mar. 4/9

1 stop7h 10m

$315

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

mar. 4/30

1 stop4h 14m

Lambert-St Louis

mié. 5/1

2 stops11h 13m

$405

Flights are sorted by cheapest first

Deals found on 2/21

When is the best time to book a flight from Buffalo to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to St. Louis. Price data was last updated on January 28, 2024.
The best time to book flights from Buffalo to St. Louis is 39 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Buffalo to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to St. Louis. Price data was last updated on February 18, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Buffalo to St. Louis flight should consider departing on Thursday afternoons when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from Buffalo to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Buffalo to St. Louis is currently $133 while a round-trip flight costs $249. Price data was last updated on February 18, 2024.

Currently, October is the cheapest month in which you can book a flight from Buffalo to St. Louis (average of $323). Flying from Buffalo to St. Louis in June is currently the most expensive (average of $389). 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.

January

$326

February

$330

March

$346

April

$361

May

$361

June

$389

July

$383

August

$338

September

$324

October

$323

November

$335

December

$323

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

32 - 80.6 °F

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 febrero 22, 2024.
Read through reviews of airlines operating flights from Buffalo to St. Louis, such as Frontier, American Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
11,921 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.1

Boarding

8.2

Overall

8.1

Food

7.5

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

8.1
Very good
11,921 reviews
8.1
Very good
11,921 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.1

Boarding

8.2

Overall

8.1

Food

7.5

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

7.4
Good
11,872 reviews
8.1
Very good
11,921 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.1

Boarding

8.2

Overall

8.1

Food

7.5

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

7.3
Good
15,643 reviews
8.1
Very good
11,921 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.1

Boarding

8.2

Overall

8.1

Food

7.5

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

6.4
Okay
4,512 reviews
8.1
Very good
11,921 reviews

Comfort

7.9

Crew

8.6

Entertainment

8.1

Boarding

8.2

Overall

8.1

Food

7.5

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

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.

Can I find flights from Buffalo to St. Louis for under $200 on Cheapflights?

Yes, there are multiple flights from Buffalo to St. Louis for under $200. The cheapest flight booked recently is on Frontier for just $192, but on average you can expect to pay $253.

What are the cheapest airlines flying from Buffalo to St. Louis round-trip?

Our cheapest airline available from Buffalo to St. Louis is Frontier. Our recent data shows that you can find tickets from as low as $192 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $302 and $315 round-trip. Frontier is currently priced 49% below the average price you’ll pay for this route.

What are the most popular airlines that fly from Buffalo to St. Louis?

What does BUF to STL mean?

This is defined as Buffalo Airport (BUF) and Lambert-St Louis Airport (STL). Codes like Lambert-St Louis Airport are often used to just call airports uniquely.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Buffalo to St. Louis

Discover the top 4 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 3,442,422 searches. Data last updated febrero 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$241FlexibilityNo cancel feeOn-time62%
Search Frontier flights
DeltaCheapest$252Average$366FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$263Average$384FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$308Average$361FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Search flights from Buffalo to St. Louis by cabin class

Find flights from Buffalo to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Buffalo to St. Louis?

Deals for Buffalo to St. Louis flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to St. Louis?

Cheapflights simply makes it quick and affordable to book flights from Buffalo to St. Louis by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Buffalo to St. Louis with no change fees?

Certainly. Search results for flights to St. Louis from Buffalo shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Buffalo to St. Louis become cheaper?

Yes! Start tracking prices for Buffalo to St. Louis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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