Cheap flights from St. Louis to Buffalo (STL - BUF) from $108

This is the cheapest one-way flight price, found on 5/31. Prices may vary by date and flight preferences.
STL — BUF
Jun 6 — Jun 131
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The best prices from Lambert-St Louis to Buffalo are usually found in January or April, booked 33 days in advance, depart on a Saturday or Monday 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 2023: compare St. Louis to Buffalo flight prices with the expected peak season, weather and rainfall in Buffalo.

Popular in

November

Cheapest in

January

Round-trip from

$263

One-way from

$120
High demand for flights, 16% potential price rise
Best time to find cheap flights, 22% potential price drop
From Lambert-St Louis to Buffalo
One-way flight from Lambert-St Louis to Buffalo

STL - BUF

Price

$263 - $469

BUF

Temperature

24.8 - 71.6 °F

BUF

Rainfall

2.5 - 4 inches

Cheap flights from St. Louis to Buffalo in June, July 2023

The best prices found for STL to BUF flights for June, July
Check out some of the best flight deals from St. Louis to Buffalo in 2023. More deals are always being added, so be sure to check back regularly.

St. Louis to Buffalo 2023 flight deals

Cheap flights to Buffalo from St. Louis found for this year
Check out some of the best flight deals from St. Louis to Buffalo in 2023. More deals are always being added, so be sure to check back regularly.

Cheap American Airlines flights from St. Louis to Buffalo

Find some of the cheapest American Airlines flights traveling from St. Louis to Buffalo. Come back soon if you're not finding the exact deal you're looking for.

Cheap Frontier flights from St. Louis to Buffalo

Some of the lowest-priced Frontier flights we've found at this time heading from St. Louis to Buffalo. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Last minute flights from St. Louis to Buffalo

Late deals on return flights to Buffalo from St. Louis, departing today and this week
Check out these flights departing soon from St. Louis to Buffalo. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to Buffalo from St. Louis

The cheapest one-way flights from St. Louis to Buffalo
Take a look at some of the one-way flights we've detected from St. Louis to Buffalo. Those needing a return flight from St. Louis to Buffalo can use the search form above.

Find flights from St. Louis to Buffalo within your budget

Use the slider to find flights from St. Louis to Buffalo that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$216 - $407

Route

Depart

Return

Price

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Tue 9/19

1 stop4h 12m

Buffalo

Tue 9/26

1 stop7h 32m

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Tue 9/19

1 stop6h 44m

Buffalo

Tue 9/26

2 stops7h 30m

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Fri 7/28

1 stop23h 13m

Buffalo

Thu 8/3

1 stop13h 09m

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 9/21

1 stop9h 16m

Buffalo

Sun 9/24

1 stop12h 22m

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 10/12

1 stop9h 14m

Buffalo

Sun 10/15

1 stop12h 25m

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 7/13

1 stop6h 53m

Buffalo

Thu 7/20

1 stop13h 09m

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 9/27

1 stop6h 24m

Buffalo

Sun 10/1

1 stop4h 06m

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Fri 6/16

1 stop26h 04m

Buffalo

Mon 6/19

1 stop12h 33m

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Mon 6/12

1 stop3h 40m

Buffalo

Thu 6/15

1 stop10h 35m

Flights are sorted by cheapest first

Deals found on 5/30

Reviews of Airlines Servicing Buffalo

To help decide which airline to fly from St. Louis to Buffalo, see what other customers have to say about American Airlines, Frontier and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Employees were organized and professional. The flight boarded and pushed back early.

Delta
8.0
Very good
2,370 reviews
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Employees were organized and professional. The flight boarded and pushed back early.

Southwest
7.6
Good
1,140 reviews
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Employees were organized and professional. The flight boarded and pushed back early.

United Airlines
7.6
Good
1,535 reviews
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Employees were organized and professional. The flight boarded and pushed back early.

American Airlines
7.3
Good
2,149 reviews
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Employees were organized and professional. The flight boarded and pushed back early.

Frontier
5.9
Fair
669 reviews
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Employees were organized and professional. The flight boarded and pushed back early.

Related info for your journey

Useful info, stats and facts about St. Louis to Buffalo flights.

Top 3 airlines flying from 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.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
United AirlinesCheapest$206Average$400FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
American AirlinesCheapest$258Average$405FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$283Average$402FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights