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Cheap flights from Buffalo to St. Louis from $65

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to St. Louis departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Buffalo to St. Louis

Cheap round-trip flights

These are some of the best round-trip flight deals from Buffalo to St. Louis that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Buffalo to St. Louis.

Cheap last minute flights

Planning a quick getaway from Buffalo to St. Louis? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to St. Louis, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Buffalo to St. Louis

Find recent round-trip train or bus tickets from Buffalo to St. Louis.

All round-trip flight deals from Buffalo to St. Louis

The cheapest plane tickets from Buffalo to St. Louis found on KAYAK recently.
5:07 pm - 11:43 pmBUF-STL
7h 36m1 stop
10:36 am - 10:24 amSTL-BUF
22h 48m1 stop
$132Frontier
Find Deal
Fri, Feb 21 - Mon, Mar 10
5:30 pm - 11:46 pmBUF-STL
7h 16m1 stop
4:57 pm - 4:09 pmSTL-BUF
22h 12m1 stop
$184Frontier
Find Deal
Thu, Apr 3 - Thu, Apr 10
6:22 am - 9:36 amBUF-STL
4h 14m1 stop
6:06 am - 1:35 pmSTL-BUF
6h 29m1 stop
$287Delta
Find Deal
Thu, Feb 13 - Thu, Feb 20
6:00 am - 11:56 amBUF-STL
6h 56m1 stop
6:10 am - 2:08 pmSTL-BUF
6h 58m1 stop
$317Delta
Find Deal
Thu, Apr 10 - Sun, Apr 13
7:45 am - 11:21 amBUF-STL
4h 36m1 stop
6:04 am - 2:34 pmSTL-BUF
7h 30m2 stops
$322American Airlines
Find Deal
Wed, Feb 26 - Sat, Mar 1
11:50 am - 4:25 pmBUF-STL
5h 35m1 stop
2:55 pm - 11:31 pmSTL-BUF
7h 36m2 stops
$332United Airlines
Find Deal
Tue, Feb 4 - Mon, Feb 10
4:40 pm - 11:46 pmBUF-STL
8h 06m2 stops
2:15 pm - 10:49 pmSTL-BUF
7h 34m2 stops
$337American Airlines
Find Deal
Tue, Feb 4 - Mon, Feb 10
7:20 pm - 11:30 pmBUF-STL
5h 10m1 stop
2:55 pm - 9:10 pmSTL-BUF
5h 15m1 stop
$357United Airlines
Find Deal
Tue, Feb 4 - Sat, Feb 8
5:45 am - 12:20 pmBUF-STL
7h 35m2 stops
3:30 pm - 11:15 pmSTL-BUF
6h 45m1 stop
$392Southwest
Find Deal
Fri, May 16 - Sun, May 18
3:15 pm - 11:25 pmBUF-STL
9h 10m1 stop
3:20 pm - 10:55 pmSTL-BUF
6h 35m2 stops
$402Southwest
Find Deal
Mon, Feb 17 - Mon, Feb 24
7:55 pm - 11:31 pmBUF-STL
28h 36m1 stop
$65Frontier
Find Deal
Mon, Feb 10
4:07 pm - 11:31 pmBUF-STL
8h 24m1 stop
$135Frontier
Find Deal
Sun, Feb 2
6:22 am - 9:36 amBUF-STL
4h 14m1 stop
$144Delta
Find Deal
Tue, Feb 11
11:52 am - 7:23 pmBUF-STL
8h 31m2 stops
$149American Airlines
Find Deal
Tue, Feb 11
4:07 pm - 11:31 pmBUF-STL
8h 24m1 stop
$165Frontier
Find Deal
Sun, Jan 26
4:40 pm - 11:46 pmBUF-STL
8h 06m2 stops
$189American Airlines
Find Deal
Mon, Feb 10
5:06 pm - 10:11 pmBUF-STL
6h 05m1 stop
$202American Airlines
Find Deal
Sat, Mar 29
6:22 am - 9:36 amBUF-STL
4h 14m1 stop
$204Delta
Find Deal
Mon, Feb 3
2:43 pm - 9:45 pmBUF-STL
8h 02m2 stops
$244United Airlines
Find Deal
Mon, Feb 3
6:00 am - 2:31 pmBUF-STL
9h 31m2 stops
$303United Airlines
Find Deal
Sat, Mar 29
9:06 am - 11:31 pmBUF-STL
15h 25m1 stop
5:05 pm - 9:41 amSTL-BUF
15h 36m1 stop
$340Frontier
Find Deal
Fri, Jan 24 - Sun, Jan 26
6:00 am - 6:01 pmBUF-STL
13h 01m1 stop
1:35 pm - 1:38 pmSTL-BUF
23h 03m1 stop
$516Delta
Find Deal
Sat, Jan 25 - Tue, Jan 28
5:28 pm - 10:08 pmBUF-STL
5h 40m1 stop
6:00 am - 11:57 amSTL-BUF
4h 57m1 stop
$527American Airlines
Find Deal
Sun, Jan 26 - Mon, Jan 27
2:55 pm - 10:08 pmBUF-STL
8h 13m1 stop
2:00 pm - 10:49 pmSTL-BUF
7h 49m2 stops
$532American Airlines
Find Deal
Sun, Jan 26 - Mon, Jan 27
6:00 am - 9:49 pmBUF-STL
16h 49m2 stops
1:35 pm - 10:47 pmSTL-BUF
8h 12m1 stop
$536Delta
Find Deal
Sat, Jan 25 - Tue, Jan 28
11:52 am - 8:09 pmBUF-STL
9h 17m1 stop
7:20 am - 10:49 pmSTL-BUF
14h 29m1 stop
$539American Airlines
Find Deal
Fri, Jan 24 - Tue, Jan 28
4:05 pm - 7:35 pmBUF-STL
4h 30m1 stop
6:50 am - 3:20 pmSTL-BUF
7h 30m1 stop
$627Southwest
Find Deal
Sat, Jan 25 - Mon, Jan 27
4:35 pm - 10:15 pmBUF-STL
6h 40m1 stop
1:15 pm - 10:20 pmSTL-BUF
8h 05m2 stops
$632Southwest
Find Deal
Sun, Jan 26 - Mon, Jan 27
7:00 am - 10:54 amBUF-STL
4h 54m1 stop
1:02 pm - 11:30 pmSTL-BUF
9h 28m2 stops
$657United Airlines
Find Deal
Sat, Jan 25 - Mon, Jan 27
11:50 am - 8:02 pmBUF-STL
9h 12m2 stops
9:44 am - 7:08 pmSTL-BUF
8h 24m2 stops
$662United Airlines
Find Deal
Sat, Jan 25 - Mon, Jan 27

Frontier flights from Buffalo to St. Louis

Our best Frontier deals on Buffalo to St. Louis flight tickets
Frontier
Feb 21
BUF5:07 pmBuffalo
7h 36m
1 stop
STL11:43 pmLambert-St Louis
Mar 10
STL10:36 amLambert-St Louis
22h 48m
1 stop
BUF10:24 amBuffalo
Frontier
Apr 3
BUF5:30 pmBuffalo
7h 16m
1 stop
STL11:46 pmLambert-St Louis
Apr 10
STL4:57 pmLambert-St Louis
22h 12m
1 stop
BUF4:09 pmBuffalo
Frontier
Apr 3
BUF5:30 pmBuffalo
7h 16m
1 stop
STL11:46 pmLambert-St Louis
Apr 10
STL4:57 pmLambert-St Louis
22h 12m
1 stop
BUF4:09 pmBuffalo

Delta flights from Buffalo to St. Louis

Our best Delta deals on Buffalo to St. Louis flight tickets
Delta
Feb 4
BUF2:12 pmBuffalo
5h 32m
1 stop
STL6:44 pmLambert-St Louis
Feb 5
STL6:00 amLambert-St Louis
6h 06m
1 stop
BUF1:06 pmBuffalo
Delta
Apr 10
BUF6:00 amBuffalo
6h 56m
1 stop
STL11:56 amLambert-St Louis
Apr 13
STL6:10 amLambert-St Louis
6h 58m
1 stop
BUF2:08 pmBuffalo
Delta
Feb 4
BUF6:00 amBuffalo
7h 28m
1 stop
STL12:28 pmLambert-St Louis
Feb 10
STL4:40 pmLambert-St Louis
6h 17m
1 stop
BUF11:57 pmBuffalo

See travel insights to St. Louis from

How to get the cheapest flight ticket from Buffalo to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, August is the cheapest month to fly from Buffalo to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $276. The month of September is another great option to travel to St. Louis, with average flight prices from Buffalo averaging around $296.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Wednesday when prices can be found for as low as $326. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $486. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Buffalo at noon is the least expensive time of day to depart. momondo users have found prices as low as $328 when looking at flights departing at noon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $416 per ticket.

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

You are more likely to see cheaper flights to St. Louis from Buffalo when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $355 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Buffalo for as low as $280 on momondo.

How have Buffalo to St. Louis flight prices changed over time?

As of January 2025, prices for Buffalo to St. Louis flights are approximately 34% cheaper when compared to flights at the same time last year.

When to book flights from Buffalo to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buffalo to St. Louis (BUF to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to St. Louis

Best Price Found

$65

Fastest flight time

4h 14m

Direct flights

None

Airports in St. Louis

1 airport
The best one-way flight to St. Louis from Buffalo in the past 72 hours is $65. The best round-trip flight deal from Buffalo to St. Louis found on momondo in the last 72 hours is $132.
The fastest flight from Buffalo to St. Louis takes 4h 14m
There are no direct flights from Buffalo to St. Louis. Popular non-direct route for this connection is Buffalo Airport - Lambert-St Louis Airport.
There is 1 airport near St. Louis: Lambert-St Louis (STL)

  • How far is Buffalo to Lambert-St Louis by plane?

    A flight from Buffalo to Lambert-St Louis will travel around 660.3 mi. Flights usually cover this in 4h 14m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Buffalo Airport to Lambert-St Louis Airport?

    Prices for flights from Buffalo Airport to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Buffalo Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Buffalo Airport to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Buffalo to St. Louis?


Best airlines flying from Buffalo to St. Louis

Compare and see reviews for airlines that fly from Buffalo to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $125Free CancellationRating
6.0
3,443 reviews
Search Frontier flights
American AirlinesPriceFrom $243Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $276Free CancellationRating
8.0
8,521 reviews
Search Delta flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
8,985 reviews
Search United Airlines flights
SouthwestPriceFrom $296Free CancellationRating
8.1
4,662 reviews
Search Southwest flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Collinsville
Florissant
Maryland Heights
Hermann
Fairview Heights
Farmington
O'Fallon
Fenton
Alton
Wentzville
St. Peters
Eureka
Festus
Clayton
Edwardsville
Glencoe
Litchfield
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Buffalo to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Buffalo to St. Louis with flexible booking policies on momondo?

All flight searches from Buffalo to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Buffalo to St. Louis?

Once all potential Buffalo to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Buffalo to St. Louis right now. Can momondo alert me if prices change?

If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Buffalo and alert you when they change.


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