Cheap flights from St. Louis to Buffalo (STL - BUF)

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The best prices from Lambert-St Louis to Buffalo are usually found in December or January, booked 29 days in advance, depart on a Saturday or Friday and return on a Thursday

How to find the cheapest flight from
St. Louis (STL) to Buffalo (BUF)

All the information you need to plan the best STL to BUF flight in 2022: compare St. Louis to Buffalo flight prices with the expected peak season, weather and rainfall in Buffalo.
STL - BUF
Price
$181 - $428
BUF
Temperature
24.8 - 71.6 °F
BUF
Rainfall
2.5 - 4 inches

Popular in

June

High demand for flights, 29% potential price rise

Cheapest in

December

Best time to find cheap flights, 41% potential price drop

Average price

$428

Average for round-trip flights in June 2022

Round-trip from

$181

From Lambert-St Louis to Buffalo

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from St. Louis to Buffalo (STL - BUF)?

It’s optimal to fly from St. Louis to Buffalo in the evening. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the afternoon.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, December can be a great choice for travel to Buffalo. Flights to Buffalo from St. Louis in December are about $304 on average during December, but can be found for as low as $147.

What is the cheapest day to fly round-trip from St. Louis to Buffalo?

Flights from St. Louis to Buffalo are found to be more expensive on Monday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Buffalo.

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

Travelers have found it’s best to book a flight 29 days in advance to save up to 61% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 29 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Buffalo 1-2 weeks in advance for as low as $366, or $444 for flights within the next 24 hours.

Cheap flights from St. Louis to Buffalo in June, July 2022

The best prices found for STL to BUF flights for June, July
27 Jul - 3 Aug
$204pp
STL
Lambert-St Louis
Frontier
 
1 STOP
BUF
Buffalo
BUF
Buffalo
Frontier
 
1 STOP
STL
Lambert-St Louis
20 Jul - 23 Jul
$224pp
STL
Lambert-St Louis
Frontier
 
1 STOP
BUF
Buffalo
BUF
Buffalo
Frontier
 
1 STOP
STL
Lambert-St Louis
22 Jul - 26 Jul
$244pp
STL
Lambert-St Louis
Frontier
 
1 STOP
BUF
Buffalo
BUF
Buffalo
Frontier
 
1 STOP
STL
Lambert-St Louis

Lambert-St Louis to Buffalo 2022 flight deals

Cheap flights to Buffalo from St. Louis found for this year
27 Jul - 3 Aug
$204pp
STL
Lambert-St Louis
Frontier
 
1 STOP
BUF
Buffalo
BUF
Buffalo
Frontier
 
1 STOP
STL
Lambert-St Louis
20 Jul - 23 Jul
$224pp
STL
Lambert-St Louis
Frontier
 
1 STOP
BUF
Buffalo
BUF
Buffalo
Frontier
 
1 STOP
STL
Lambert-St Louis
2 Aug - 10 Aug
$236pp
STL
Lambert-St Louis
Frontier
 
1 STOP
BUF
Buffalo
BUF
Buffalo
Frontier
 
1 STOP
STL
Lambert-St Louis

Last minute flights from St. Louis to Buffalo

Late deals on round-trip flights to Buffalo from St. Louis, departing today and this week
5 Jul - 7 Jul
$373pp
STL
Lambert-St Louis
Delta
 
1 STOP
BUF
Buffalo
BUF
Buffalo
Delta
 
1 STOP
STL
Lambert-St Louis
9 Jul - 12 Jul
$399pp
STL
Lambert-St Louis
American Airlines
 
1 STOP
BUF
Buffalo
BUF
Buffalo
American Airlines
 
1 STOP
STL
Lambert-St Louis
5 Jul - 7 Jul
$594pp
STL
Lambert-St Louis
American Airlines
   
2 STOPS
BUF
Buffalo
BUF
Buffalo
American Airlines
 
1 STOP
STL
Lambert-St Louis

One-way flights to Buffalo from St. Louis

The cheapest one-way flights from St. Louis to Buffalo
2:18 pm - 6:29 am
Frontier
1 Stop
15h 11m
STL - BUF
Frontier
$208
Kiwi.com
2:43 pm - 2:50 pm
United Airlines
2 Stops
23h 07m
STL - BUF
United Airlines
$269
United
2:10 am - 7:54 pm
American Airlines
2 Stops
16h 44m
STL - BUF
American Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">St. Louis</span> to <span class="emphasized">Buffalo</span> flights.

Flight FAQs

From St. Louis to Buffalo

Which airlines flying from Lambert-St Louis to Buffalo have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines, Delta, and United Airlines flying from Lambert-St Louis to Buffalo have implemented new flexible cancellation policies.

Can I find flights from St. Louis to Buffalo for under $300 on Cheapflights?

Yes, there are multiple flights from St. Louis to Buffalo for under $300. The cheapest flight booked recently is on Frontier for just $204, but on average you can expect to pay $271.

Are there last-minute flights available from St. Louis to Buffalo for under $400?

There are currently 4+ open flights from St. Louis to Buffalo within the next 7 days for less than $400.

What are the cheapest airlines flying from St. Louis to Buffalo round-trip?

According to our current data, Frontier ($204), and American Airlines ($265) offers the cheapest pricing from St. Louis to Buffalo. Frontier is currently priced 33% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from St. Louis to Buffalo one-way?

$106 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $154 and $269, respectively.

What are the most popular airlines that fly from St. Louis to Buffalo?

Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from St. Louis to Buffalo.

What are the cheapest flights from St. Louis to Buffalo?

Looking for the cheapest flight from St. Louis to Buffalo? While on average our users pay $618, our data indicates the cheapest price to be $117. The most popular route (Lambert-St Louis - Buffalo), is priced around $253.

COVID Restrictions

View COVID Travel Restrictions for Buffalo, NY

Do I need a COVID test to fly to Buffalo from St. Louis?

Information is based on travel restrictions for travel to Buffalo within the United States

Most visitors from Lambert-St Louis need to provide a negative COVID-19 test result and/or quarantine to enter Buffalo.

COVID-19 testing requirements
Visitors from Lambert-St Louis are not required to present a negative COVID-19 PCR test or antigen result upon entering Buffalo.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Buffalo.

Do I need a test to fly back to St. Louis from Buffalo?

Returning to Lambert-St Louis from Buffalo

COVID-19 testing requirements
Visitors from Buffalo are not required to present a negative COVID-19 PCR test or antigen result upon entering Lambert-St Louis.

Quarantine requirements
Visitors from Buffalo are not required to quarantine after entering Lambert-St Louis.

Hide COVID Travel Restrictions for Buffalo, NY

Alternative routes for St. Louis to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Buffalo

Things to know before you go - useful duration and weather info for your trip from St. Louis to Buffalo.
Average temperature for June in Buffalo
78.8 °F
Avg rainfall for June in Buffalo
3.5 ″

Airports servicing St. Louis

Airports servicing Buffalo

Top 3 airlines flying from Lambert-St Louis to Buffalo

The chart below displays the airlines Cheapflights users traveling from St. Louis to Buffalo choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
American Airlines
$153 $371 No cancel fee 71%
Delta
$170 $359 No cancel fee N/A
United Airlines
$172 $278 No cancel fee 69%
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