Cheap flights from Buffalo to St. Louis from $114
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 11/9. 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
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Thu 10/29
5:45 pm-11:20 pm
1 stop6h 35m
Lambert-St Louis
Tue 11/3
2:25 pm-8:50 pm
1 stop5h 25m
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Tue 11/3
5:00 pm-9:55 pm
1 stop5h 55m
Lambert-St Louis
Mon 11/9
5:10 pm-11:50 pm
1 stop5h 40m
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Thu 11/5
6:00 am-11:47 am
1 stop6h 47m
Lambert-St Louis
Sat 11/7
5:38 pm-11:59 pm
1 stop5h 21m
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Tue 11/3
6:00 am-12:10 pm
2 stops7h 10m
Lambert-St Louis
Mon 11/9
1:00 pm-7:05 pm
1 stop5h 05m
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Thu 10/29
6:30 am-10:32 am
1 stop5h 02m
Lambert-St Louis
Tue 11/3
10:53 am-7:04 pm
2 stops7h 11m
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Thu 11/5
7:10 pm-10:50 pm
1 stop4h 40m
Lambert-St Louis
Sat 11/7
5:45 am-2:55 pm
2 stops8h 10m
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Wed 11/11
6:36 pm-11:56 pm
1 stop6h 20m
Lambert-St Louis
Thu 11/12
7:00 am-1:26 pm
1 stop5h 26m
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Thu 11/5
12:10 pm-5:47 pm
1 stop6h 37m
Lambert-St Louis
Sun 11/8
11:35 am-6:05 pm
1 stop5h 30m
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Thu 11/5
12:10 pm-5:47 pm
1 stop6h 37m
Lambert-St Louis
Sun 11/8
11:35 am-6:05 pm
1 stop5h 30m
BuffaloSt. Louis
BUF Buffalo - STL Lambert-St Louis
BUFSTL
Buffalo
Wed 3/3
6:25 am-9:36 am
1 stop4h 11m
Lambert-St Louis
Sun 3/7
6:45 am-11:44 am
1 stop3h 59m
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?
Prices are currently low for flights on this route.
Typical prices usually range from $291 to $486.The lowest price recently found on this route was $227.
What is the cheapest month to fly to St. Louis?
In general, December 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 $327. The month of January is another great option to travel to St. Louis, with average flight prices from Buffalo averaging around $357.
How have Buffalo to St. Louis flight prices changed over time?
What is the cheapest airline that flies from Buffalo to Lambert-St Louis?
United Airlines, Southwest, and Frontier are the most popular carriers operating from Buffalo to Lambert-St Louis
What airlines fly to St. Louis?
Delta, Southwest and American Airlines are the top three most popular airlines that fly to St. Louis from Buffalo according to our data. Delta is the first choice among our users, with 40% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Buffalo and St. Louis?
Detroit (DTW) 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 Buffalo to St. Louis?
Flights via Baltimore (BWI) offer the lowest average round-trip price of $412.
Which layover airport has the shortest travel time from Buffalo to St. Louis?
Flights connecting via Detroit (DTW) have the shortest average one-way travel time: 5h 35m.
Which layover airport has the shortest connection time from Buffalo to St. Louis?
Detroit (DTW) has the shortest average layover time for this route: 2h 05m.
When to book flights from Buffalo to St. Louis
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
Frequently asked questions about flying from Buffalo to St. Louis
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 55m, 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?
There are 3 operators available for flights from Buffalo Airport to Lambert-St Louis Airport as of October 2026.
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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Buffalo to St. Louis is Delta (44% of total bookings). The next most popular airlines are Southwest (37%) and American Airlines (19%).
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 | ||
|---|---|---|---|---|---|
| PriceFrom $257 | Free Cancellation | Rating 7.8 8,655 reviews | |||
| PriceFrom $264 | Free Cancellation | Rating 7.0 12,147 reviews | |||
| PriceFrom $317 | Free Cancellation | Rating 7.9 4,227 reviews |
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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.