Cheap flights from St. Louis to Buffalo from $139
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 11/27. 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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Fly from
Fly to
Route
Depart
Return
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Mon 11/9
7:59 pm-1:15 pm
2 stops40h 16m
Buffalo
Thu 11/19
2:34 pm-5:40 pm
1 stop28h 06m
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Wed 11/4
7:00 am-1:29 pm
1 stop5h 29m
Buffalo
Wed 11/11
6:36 pm-11:56 pm
1 stop6h 20m
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Wed 11/4
6:20 am-4:30 pm
2 stops9h 10m
Buffalo
Wed 11/11
5:10 pm-10:30 pm
1 stop6h 20m
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Wed 11/11
6:34 pm-4:47 pm
2 stops21h 13m
Buffalo
Thu 11/19
2:34 pm-5:40 pm
1 stop28h 06m
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Wed 11/4
6:20 am-4:30 pm
2 stops9h 10m
Buffalo
Wed 11/11
12:45 pm-7:25 pm
2 stops7h 40m
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Mon 11/2
3:51 pm-11:59 pm
1 stop7h 08m
Buffalo
Mon 11/9
6:46 pm-10:15 pm
1 stop4h 29m
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Mon 10/26
6:24 pm-11:59 pm
1 stop4h 35m
Buffalo
Tue 10/27
9:06 am-1:53 pm
1 stop5h 47m
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Thu 11/19
10:56 am-6:00 pm
1 stop6h 04m
Buffalo
Mon 11/23
7:52 am-12:44 pm
1 stop5h 52m
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Sun 11/8
10:53 am-5:02 pm
1 stop5h 09m
Buffalo
Tue 11/17
6:00 am-12:10 pm
2 stops7h 10m
St. LouisBuffalo
STL Lambert-St Louis - BUF Buffalo
STLBUF
Lambert-St Louis
Thu 11/19
6:00 am-2:20 pm
2 stops7h 20m
Buffalo
Mon 11/23
5:58 pm-11:24 pm
1 stop6h 26m
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?
Prices are currently low for flights on this route.
Typical prices usually range from $340 to $654.The lowest price recently found on this route was $227.
What is the cheapest month to fly to Buffalo?
If you aren’t able to travel during the month of February, then book flights to Buffalo from St. Louis during September instead. Flights to Buffalo in September, while not as cheap as those in February, still average around $344.
How have St. Louis to Buffalo flight prices changed over time?
What is the cheapest airline that flies from Lambert-St Louis to Buffalo?
Delta, Southwest, and American Airlines are the most popular carriers operating from Lambert-St Louis to Buffalo
What airlines fly to Buffalo?
Southwest, American Airlines and Delta are the top three most popular airlines that fly to Buffalo from St. Louis according to our data. Southwest is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Buffalo. Keep in mind that there are 5 different airlines that fly to Buffalo on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between St. Louis and Buffalo?
Chicago (MDW) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from St. Louis to Buffalo?
Flights via Chicago (ORD) offer the lowest average round-trip price of $329.
Which layover airport has the shortest travel time from St. Louis to Buffalo?
Flights connecting via Chicago (MDW) have the shortest average one-way travel time: 3h 45m.
Which layover airport has the shortest connection time from St. Louis to Buffalo?
Chicago (MDW) has the shortest average layover time for this route: 1h 29m.
When to book flights from St. Louis to Buffalo
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
Frequently asked questions about flying from St. Louis to Buffalo
How far is Lambert-St Louis to Buffalo by plane?
Buffalo is 660.3 mi away from Lambert-St Louis. Typically, this will take 4h 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?
As of October 2026, there are 5 operators available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Buffalo is Southwest, representing 34% of all bookings. The subsequent popular airlines are American Airlines at 24%, Delta at 20%, and Frontier at 13%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $115 | Free Cancellation | Rating 5.5 2,552 reviews | |||
| PriceFrom $209 | Free Cancellation | Rating 7.0 12,130 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 7.8 8,632 reviews | |||
| PriceFrom $298 | Free Cancellation | Rating 7.9 4,214 reviews | |||
| PriceFrom $302 | Free Cancellation | Rating 7.4 10,296 reviews |
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsWhy 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.