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Cheap flights from Buffalo to St. Louis from $198

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to St. Louis departing on 12/6. 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 to St. Louis

The cheapest plane tickets to St. Louis found on KAYAK recently.
7:22 pm - 10:46 pmBUF-STL
28h 24m1 stop
5:02 pm - 11:44 amSTL-BUF
17h 42m1 stop
$198Frontier
Find Deal
Fri, Dec 6 - Tue, Dec 10
7:22 pm - 10:46 pmBUF-STL
28h 24m1 stop
8:22 am - 9:41 amSTL-BUF
24h 19m1 stop
$208Frontier
Find Deal
Fri, Dec 13 - Sun, Jan 19
6:20 am - 9:35 amBUF-STL
4h 15m1 stop
6:00 am - 1:15 pmSTL-BUF
6h 15m1 stop
$286Delta
Find Deal
Wed, Dec 11 - Sat, Dec 14
12:16 pm - 7:30 pmBUF-STL
8h 14m2 stops
6:00 am - 12:42 pmSTL-BUF
5h 42m1 stop
$291American Airlines
Find Deal
Wed, Feb 26 - Sat, Mar 1
7:11 pm - 11:57 pmBUF-STL
5h 46m1 stop
6:23 pm - 10:53 pmSTL-BUF
3h 30m1 stop
$317American Airlines
Find Deal
Sat, Mar 1 - Mon, Mar 31
10:35 am - 4:35 pmBUF-STL
7h 00m1 stop
4:55 pm - 12:05 amSTL-BUF
6h 10m2 stops
$341Southwest
Find Deal
Sat, Mar 1 - Mon, Mar 31
6:00 am - 12:08 pmBUF-STL
7h 08m1 stop
7:15 am - 1:15 pmSTL-BUF
5h 00m1 stop
$346Delta
Find Deal
Wed, Dec 11 - Sat, Dec 14
8:50 am - 10:05 pmBUF-STL
14h 15m2 stops
10:55 am - 4:25 pmSTL-BUF
4h 30m1 stop
$351Southwest
Find Deal
Wed, Dec 11 - Sat, Dec 14
6:00 am - 3:34 pmBUF-STL
10h 34m2 stops
11:20 am - 4:53 pmSTL-BUF
4h 33m1 stop
$411United Airlines
Find Deal
Fri, Dec 6 - Tue, Dec 10
6:00 am - 5:06 pmBUF-STL
12h 06m2 stops
1:27 pm - 11:26 pmSTL-BUF
8h 59m2 stops
$421United Airlines
Find Deal
Sat, Mar 1 - Mon, Mar 31
7:00 am - 12:12 pmBUF-STL
6h 12m1 stop
$208United Airlines
Find Deal
Sun, Mar 16
6:00 am - 12:12 pmBUF-STL
7h 12m2 stops
$334United Airlines
Find Deal
Sun, Mar 16
7:40 pm - 2:23 pmBUF-STL
19h 43m3 stops
$440United Airlines
Find Deal
Sun, Mar 16
1:49 pm - 7:41 amBUF-STL
18h 52m1 stop
5:02 pm - 11:44 amSTL-BUF
17h 42m1 stop
$358Frontier
Find Deal
Fri, Nov 22 - Tue, Dec 3
12:21 pm - 12:06 amBUF-STL
12h 45m1 stop
6:32 pm - 12:49 pmSTL-BUF
17h 17m1 stop
$552Frontier
Find Deal
Mon, Nov 25 - Wed, Nov 27
7:22 pm - 6:40 amBUF-STL
12h 18m1 stop
6:32 pm - 6:22 pmSTL-BUF
22h 50m1 stop
$582Frontier
Find Deal
Sat, Nov 23 - Mon, Dec 2
11:57 am - 4:33 pmBUF-STL
5h 36m1 stop
6:00 am - 11:10 amSTL-BUF
4h 10m1 stop
$606Delta
Find Deal
Sat, Nov 23 - Tue, Dec 3
3:28 pm - 8:59 pmBUF-STL
6h 31m1 stop
1:46 pm - 10:48 pmSTL-BUF
8h 02m2 stops
$632American Airlines
Find Deal
Fri, Nov 22 - Tue, Dec 3
3:00 pm - 10:05 pmBUF-STL
8h 05m2 stops
3:10 pm - 11:50 pmSTL-BUF
7h 40m1 stop
$642Southwest
Find Deal
Sat, Nov 23 - Mon, Dec 2
6:00 am - 12:19 pmBUF-STL
7h 19m2 stops
8:05 am - 1:11 pmSTL-BUF
4h 06m1 stop
$646United Airlines
Find Deal
Sat, Nov 23 - Tue, Dec 3
8:25 pm - 11:10 pmBUF-STL
3h 45m1 stop
1:00 pm - 12:50 amSTL-BUF
10h 50m1 stop
$696Southwest
Find Deal
Mon, Nov 25 - Tue, Nov 26
6:25 am - 9:36 amBUF-STL
4h 11m1 stop
6:00 pm - 10:52 pmSTL-BUF
3h 52m1 stop
$697Delta
Find Deal
Sat, Nov 23 - Sun, Dec 1
7:15 pm - 11:28 pmBUF-STL
5h 13m1 stop
11:20 am - 11:42 pmSTL-BUF
11h 22m2 stops
$701United Airlines
Find Deal
Mon, Nov 25 - Wed, Nov 27

Frontier flights from Buffalo to St. Louis

Our best Frontier deals on Buffalo to St. Louis flight tickets
Frontier
Dec 6
BUF7:22 pmBuffalo
28h 24m
1 stop
STL10:46 pmLambert-St Louis
Dec 10
STL5:02 pmLambert-St Louis
17h 42m
1 stop
BUF11:44 amBuffalo
Frontier
Dec 13
BUF7:22 pmBuffalo
28h 24m
1 stop
STL10:46 pmLambert-St Louis
Jan 19
STL8:22 amLambert-St Louis
24h 19m
1 stop
BUF9:41 amBuffalo
Frontier
Feb 26
BUF11:24 amBuffalo
13h 19m
1 stop
STL11:43 pmLambert-St Louis
Mar 1
STL5:20 pmLambert-St Louis
21h 47m
1 stop
BUF4:07 pmBuffalo

Delta flights from Buffalo to St. Louis

Our best Delta deals on Buffalo to St. Louis flight tickets
Delta
Dec 11
BUF6:20 amBuffalo
4h 15m
1 stop
STL9:35 amLambert-St Louis
Dec 14
STL6:00 amLambert-St Louis
6h 15m
1 stop
BUF1:15 pmBuffalo
Delta
Dec 11
BUF6:00 amBuffalo
7h 08m
1 stop
STL12:08 pmLambert-St Louis
Dec 14
STL7:15 amLambert-St Louis
5h 00m
1 stop
BUF1:15 pmBuffalo
Delta
Nov 23
BUF11:57 amBuffalo
5h 36m
1 stop
STL4:33 pmLambert-St Louis
Dec 3
STL6:00 amLambert-St Louis
4h 10m
1 stop
BUF11:10 amBuffalo

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 typical price of a round-trip flight between Buffalo and St. Louis?

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 $437. 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 in the evening is the least expensive time of day to depart. momondo users have found prices as low as $299 when looking at flights departing in the evening. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $361 per ticket.

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

The best time to book a flight to St. Louis from Buffalo is 33 days out, which is when prices tend to be around $352. In the past 72 hours, momondo users found flights from Buffalo to St. Louis for as low as $160.

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

As of November 2024, prices for Buffalo to St. Louis flights are approximately 13% more expensive 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

$208

Fastest flight time

3h 40m

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 $208. The best round-trip flight deal from Buffalo to St. Louis found on momondo in the last 72 hours is $198.
The fastest flight from Buffalo to St. Louis takes 3h 40m
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 3h 40m, 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 $98Free CancellationRating
6.1
3,536 reviews
Search Frontier flights
American AirlinesPriceFrom $243Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $266Free CancellationRating
8.0
8,755 reviews
Search Delta flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
9,172 reviews
Search United Airlines flights

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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