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STL - BUF

$139 Find Cheap Flights from St. Louis to Buffalo - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$227
Typical prices: $293-$450
Delta
Sun 11/4Sun 11/11
STL - BUF • 1 stop
Cheapest one-way
$139
Typical prices: $193-$378
Frontier
Tue 11/27
STL - BUF • 1 stop
Nonstop flights
Not available
There are currently no direct flights between St. Louis and Buffalo. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
September
Cheapest • 14% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $167 (round-trip)
Chicago Midway (MDW)
Shortest trip • 3h 54m (one-way)
Insights
Insights
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Booking Insights
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Buffalo

Mon, Nov 9 - Thu, Nov 19
Frontier Logo
7:59 pm - 1:15 pmSTL  Lambert-St Louis-BUF Buffalo
40h 16m2 stops Denver Intl Atlanta Hartsfield-Jackson
Frontier Logo
2:34 pm - 5:40 pmBUF  Buffalo-STL Lambert-St Louis
28h 06m1 stop Atlanta Hartsfield-Jackson
$227Frontier
Wed, Nov 4 - Wed, Nov 11
Delta Logo
7:00 am - 1:29 pmSTL  Lambert-St Louis-BUF Buffalo
5h 29m1 stop New York LaGuardia
Delta Logo
6:36 pm - 11:56 pmBUF  Buffalo-STL Lambert-St Louis
6h 20m1 stop Atlanta Hartsfield-Jackson
$227Delta
Wed, Nov 4 - Wed, Nov 11
Southwest Logo
6:20 am - 4:30 pmSTL  Lambert-St Louis-BUF Buffalo
9h 10m2 stops Chicago Midway Baltimore/Washington
Southwest Logo
5:10 pm - 10:30 pmBUF  Buffalo-STL Lambert-St Louis
6h 20m1 stop Orlando
$232Southwest
Wed, Nov 11 - Thu, Nov 19
Frontier Logo
6:34 pm - 4:47 pmSTL  Lambert-St Louis-BUF Buffalo
21h 13m2 stops Atlanta Hartsfield-Jackson Orlando
Frontier Logo
2:34 pm - 5:40 pmBUF  Buffalo-STL Lambert-St Louis
28h 06m1 stop Atlanta Hartsfield-Jackson
$235Frontier
Wed, Nov 4 - Wed, Nov 11
Southwest Logo
6:20 am - 4:30 pmSTL  Lambert-St Louis-BUF Buffalo
9h 10m2 stops Chicago Midway Baltimore/Washington
Southwest Logo
12:45 pm - 7:25 pmBUF  Buffalo-STL Lambert-St Louis
7h 40m2 stops Baltimore/Washington Pittsburgh
$237Southwest
Mon, Nov 2 - Mon, Nov 9
American Airlines Logo
3:51 pm - 11:59 pmSTL  Lambert-St Louis-BUF Buffalo
7h 08m1 stop Washington, D.C. Reagan-National
American Airlines Logo
6:46 pm - 10:15 pmBUF  Buffalo-STL Lambert-St Louis
4h 29m1 stop Chicago O'Hare Intl
$263American Airlines
Mon, Oct 26 - Tue, Oct 27
Delta Logo
6:24 pm - 11:59 pmSTL  Lambert-St Louis-BUF Buffalo
4h 35m1 stop Detroit Metropolitan Wayne County
Delta Logo
9:06 am - 1:53 pmBUF  Buffalo-STL Lambert-St Louis
5h 47m1 stop Detroit Metropolitan Wayne County
$269Delta
Thu, Nov 19 - Mon, Nov 23
American Airlines Logo
10:56 am - 6:00 pmSTL  Lambert-St Louis-BUF Buffalo
6h 04m1 stop Chicago O'Hare Intl
American Airlines Logo
7:52 am - 12:44 pmBUF  Buffalo-STL Lambert-St Louis
5h 52m1 stop Chicago O'Hare Intl
$288American Airlines
Sun, Nov 8 - Tue, Nov 17
United Airlines Logo
10:53 am - 5:02 pmSTL  Lambert-St Louis-BUF Buffalo
5h 09m1 stop Chicago O'Hare Intl
United Airlines Logo
6:00 am - 12:10 pmBUF  Buffalo-STL Lambert-St Louis
7h 10m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
$376United Airlines
Thu, Nov 19 - Mon, Nov 23
United Airlines Logo
6:00 am - 2:20 pmSTL  Lambert-St Louis-BUF Buffalo
7h 20m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
United Airlines Logo
5:58 pm - 11:24 pmBUF  Buffalo-STL Lambert-St Louis
6h 26m1 stop Chicago O'Hare Intl
$417United Airlines
Booking Insights

Price, demand and travel trends for St. Louis to Buffalo flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from St. Louis to Buffalo?

Round-trip flights from St. Louis to Buffalo typically range from $293 to $450. The lowest price found in the past 5 days was $227, on Delta.

What's the cheapest day of the week to fly from St. Louis to Buffalo?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from St. Louis to Buffalo. It’s 30% cheaper than the average day, while Sunday is the most expensive, with prices 23% higher.

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

•September is the cheapest month to fly from St. Louis to Buffalo at $316 round-trip.
•April ($508) and March ($466) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 60% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for St. Louis to Buffalo flights

Low season

March

Cheapest flight

$139
Beat the crowds with an average 31% drop in travelers.
The most popular month to fly with an average 18% increase in travelers.
One-way flight from St. Louis to Buffalo

When to book flights from St. Louis to Buffalo

Are your dates flexible? Find out the best times to travel from St. Louis to Buffalo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your St. Louis to Buffalo flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from St. Louis to Buffalo?

    Two cabin classes are available on flights from St. Louis to Buffalo:

    • Economy Class
    • First Class

  • How long is a flight from St. Louis to Buffalo?

    A nonstop flight from St. Louis to Buffalo takes 00m, covering 672 miles.

  • Do I need a passport to fly from St. Louis to Buffalo?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a St. Louis to Buffalo flight?

    Round-trip flights from St. Louis to Buffalo range from $293 to $450, with an average of $368 over the past 12 months. Anything below $293 counts as a good deal.

  • Have flight prices from St. Louis to Buffalo changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $227 to $970. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from St. Louis to Buffalo looking right now?

    One-way fares from St. Louis to Buffalo are currently lower than usual. Average one-way flight prices are about $209, which is 23% below the typical average for this route.

  • What car rental options are available at Buffalo Airport (BUF)?

    Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates starting from around $19 for economy cars. Top options include:

    • Dollar
    • Budget
    • Hertz
    • Alamo
    • Thrifty

  • Which airports can I use when flying from St. Louis to Buffalo?

    Flights from St. Louis to Buffalo usually depart from Lambert-St Louis (STL) and arrive at Buffalo (BUF).

  • Which airports do connecting flights from St. Louis to Buffalo pass through?

    One-stop flights from St. Louis to Buffalo most commonly connect through:

    • Chicago Midway (MDW) - 27% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 22% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 21% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 13% of one-stop connections

  • Can I save money by using flexible dates for flights from St. Louis to Buffalo?

    Yes. Flexible dates can save you up to 43% on flights from St. Louis to Buffalo. Monday is the cheapest departure day at $260 round-trip on average, while Sunday is the most expensive at $456, a difference of $196.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from St. Louis to Buffalo?

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 3h 54m, compared with 4h 18m via Detroit Metropolitan Wayne County (DTW) and 4h 30m via Charlotte Douglas (CLT).

  • What is the time difference between St. Louis and Buffalo?

    Buffalo is 1 hour ahead of St. Louis (Eastern Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking St. Louis to Buffalo flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Sunday. On this route, Monday flights average $260, about $196 less than Sunday fares (43% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Buffalo trip for September. Fares historically average $316 round-trip in that month - typically $192 less than the most expensive month, which is April (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Buffalo Airport.

    • Aloft Buffalo Airport
    • TownePlace Suites by Marriott Buffalo Airport
    • Comfort Inn and Suites Buffalo Airport

More options for your flight from St. Louis to Buffalo

Complete your trip to Buffalo with a hotel stay or car rental

Car rentals in Buffalo
Hotels in Buffalo
Vacations in Buffalo