Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from St. Louis to Buffalo from $92

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Buffalo departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Buffalo

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:27 pm - 10:41 am
STL
-
BUF
16h 14m
1 stop
Frontier Logo
2:49 pm - 5:33 pm
BUF
-
STL
27h 44m
1 stop
$208Frontier
Mon, May 11 - Mon, May 18
Frontier Logo
5:27 pm - 10:41 am
STL
-
BUF
16h 14m
1 stop
Frontier Logo
7:31 pm - 8:55 am
BUF
-
STL
38h 24m
2 stops
$212Frontier
Mon, May 11 - Mon, May 18
Frontier Logo
5:27 pm - 10:41 am
STL
-
BUF
16h 14m
1 stop
Frontier Logo
2:49 pm - 5:33 pm
BUF
-
STL
27h 44m
1 stop
$214Frontier
Wed, May 13 - Mon, May 18
Frontier Logo
11:21 am - 11:23 am
STL
-
BUF
23h 02m
1 stop
Frontier Logo
12:32 pm - 6:50 am
BUF
-
STL
19h 18m
1 stop
$224Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
5:27 pm - 10:41 am
STL
-
BUF
16h 14m
1 stop
Frontier Logo
11:36 am - 8:55 am
BUF
-
STL
22h 19m
1 stop
$234Frontier
Wed, May 27 - Sun, May 31
Frontier Logo
11:25 am - 11:23 am
STL
-
BUF
22h 58m
1 stop
Frontier Logo
1:08 pm - 6:50 am
BUF
-
STL
18h 42m
1 stop
$246Frontier
Thu, Apr 23 - Thu, Apr 30
Frontier Logo
6:33 pm - 1:54 pm
STL
-
BUF
18h 21m
1 stop
Frontier Logo
11:36 am - 8:55 am
BUF
-
STL
22h 19m
1 stop
$251Frontier
Thu, Jun 4 - Sun, Jun 7
Frontier Logo
11:25 am - 11:23 am
STL
-
BUF
22h 58m
1 stop
Frontier Logo
1:08 pm - 11:19 pm
BUF
-
STL
11h 11m
2 stops
$252Frontier
Thu, Apr 23 - Thu, Apr 30
Frontier Logo
11:21 am - 11:23 am
STL
-
BUF
23h 02m
1 stop
Frontier Logo
12:32 pm - 11:19 pm
BUF
-
STL
11h 47m
2 stops
$276Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
4:59 pm - 10:59 am
STL
-
BUF
17h 00m
1 stop
Frontier Logo
8:59 pm - 7:51 am
BUF
-
STL
11h 52m
1 stop
$280Frontier
Fri, Apr 10 - Sun, Apr 12

American Airlines flights from St. Louis to Buffalo

Our best American Airlines deals on St. Louis to Buffalo flight tickets
American Airlines
May 11
STL7:05 amLambert-St Louis
6h 16m
1 stop
BUF2:21 pmBuffalo
May 15
BUF6:00 pmBuffalo
6h 56m
1 stop
STL11:56 pmLambert-St Louis
$286
American Airlines
May 25
STL5:00 pmLambert-St Louis
6h 09m
1 stop
BUF12:09 amBuffalo
May 30
BUF10:37 amBuffalo
5h 41m
1 stop
STL3:18 pmLambert-St Louis
$325
American Airlines
May 11
STL3:42 pmLambert-St Louis
5h 22m
1 stop
BUF10:04 pmBuffalo
May 15
BUF6:00 pmBuffalo
5h 19m
1 stop
STL10:19 pmLambert-St Louis
$354

Southwest flights from St. Louis to Buffalo

Our best Southwest deals on St. Louis to Buffalo flight tickets
Southwest
Sep 21
STL6:05 amLambert-St Louis
3h 40m
1 stop
BUF10:45 amBuffalo
Sep 23
BUF12:00 pmBuffalo
6h 55m
2 stops
STL5:55 pmLambert-St Louis
$367
Southwest
Jun 5
STL3:35 pmLambert-St Louis
7h 35m
2 stops
BUF12:10 amBuffalo
Jun 7
BUF6:10 amBuffalo
5h 55m
1 stop
STL11:05 amLambert-St Louis
$375
Southwest
Jun 20
STL12:50 pmLambert-St Louis
4h 25m
1 stop
BUF6:15 pmBuffalo
Jun 24
BUF4:25 pmBuffalo
7h 00m
2 stops
STL10:25 pmLambert-St Louis
$381

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Buffalo 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, momondo users made 832,500 searches. Data last updated March 30, 2026.
Use the filters below to find and compare flights from St. Louis to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Mon 5/11

5:27 pm-10:41 am

1 stop16h 14m

Buffalo

Mon 5/18

2:49 pm-5:33 pm

1 stop27h 44m

$208

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Mon 5/11

5:27 pm-10:41 am

1 stop16h 14m

Buffalo

Mon 5/18

7:31 pm-8:55 am

2 stops38h 24m

$212

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 5/13

5:27 pm-10:41 am

1 stop16h 14m

Buffalo

Mon 5/18

2:49 pm-5:33 pm

1 stop27h 44m

$214

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 4/30

11:21 am-11:23 am

1 stop23h 02m

Buffalo

Sun 5/3

12:32 pm-6:50 am

1 stop19h 18m

$224

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 5/27

5:27 pm-10:41 am

1 stop16h 14m

Buffalo

Sun 5/31

11:36 am-8:55 am

1 stop22h 19m

$234

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 4/23

11:25 am-11:23 am

1 stop22h 58m

Buffalo

Thu 4/30

1:08 pm-6:50 am

1 stop18h 42m

$246

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 6/4

6:33 pm-1:54 pm

1 stop18h 21m

Buffalo

Sun 6/7

11:36 am-8:55 am

1 stop22h 19m

$251

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 4/23

11:25 am-11:23 am

1 stop22h 58m

Buffalo

Thu 4/30

1:08 pm-11:19 pm

2 stops11h 11m

$252

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 4/30

11:21 am-11:23 am

1 stop23h 02m

Buffalo

Sun 5/3

12:32 pm-11:19 pm

2 stops11h 47m

$276
Quickest round-trip

St. LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Fri 4/10

4:59 pm-10:59 am

1 stop17h 00m

Buffalo

Sun 4/12

8:59 pm-7:51 am

1 stop11h 52m

$280

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Buffalo from

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

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 St. Louis and Buffalo?

What is the cheapest month to fly to Buffalo?

If you aren’t able to travel during the month of July, then book flights to Buffalo from St. Louis during September instead. Flights to Buffalo in September, while not as cheap as those in July, still average around $316.

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

When to book flights from St. Louis to Buffalo

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

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

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

Fastest flight time

3h 35m

Direct flights

None
The fastest flight from St. Louis to Buffalo takes 3h 35m
There are no direct flights from St. Louis to Buffalo. There are no popular flight routes from St. Louis to Buffalo.
Search flight deals

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

    Buffalo is 660.3 mi away from Lambert-St Louis. Typically, this will take 3h 35m by plane in normal conditions.

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

    Prices for flights from Lambert-St Louis Airport to Buffalo Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Buffalo Airport.

  • What documentation or ID do you need to fly to Buffalo Airport?

    The travel and health documents required for your trip to Buffalo Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Buffalo Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from St. Louis to Buffalo

Compare and see reviews for airlines that fly from St. Louis to Buffalo with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $167Free CancellationRating
7.4
9,514 reviews
Search United Airlines flights
American AirlinesPriceFrom $221Free CancellationRating
7.1
11,530 reviews
Search American Airlines flights
DeltaPriceFrom $238Free CancellationRating
7.9
8,359 reviews
Search Delta flights
SouthwestPriceFrom $336Free CancellationRating
8.0
4,329 reviews
Search Southwest flights

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Cheektowaga
Amherst
Tonawanda
Grand Island
Orchard Park
Williamsville
Lockport
West Seneca
Bowmansville
East Aurora
Eden
Angola

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Buffalo. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Buffalo from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Buffalo from St. Louis.

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

Yes momondo offers price alerts on flights to Buffalo from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Buffalo trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 4/29
Wed 5/6
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States