STL - BUF

$87 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
$225
Typical prices: $290-$473
Frontier
Sun 10/28Fri 11/2
STL - BUF • 1 stop
Cheapest one-way
$87
Typical prices: $193-$378
Frontier
Sat 11/3
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
February
Cheapest • 9% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $182 (round-trip)
Chicago Midway (MDW)
Shortest trip • 3h 52m (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

Wed, Oct 28 - Mon, Nov 2
Frontier Logo
10:35 am - 12:18 pmSTL  Lambert-St Louis-BUF Buffalo
24h 43m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
1:48 pm - 10:39 pmBUF  Buffalo-STL Lambert-St Louis
33h 51m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl
$225Frontier
Wed, Oct 28 - Mon, Nov 2
Frontier Logo
10:35 am - 12:18 pmSTL  Lambert-St Louis-BUF Buffalo
24h 43m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
1:48 pm - 9:40 amBUF  Buffalo-STL Lambert-St Louis
20h 52m1 stop Atlanta Hartsfield-Jackson
$269Frontier
Wed, Sep 30 - Tue, Oct 13
American Airlines Logo
6:00 am - 1:53 pmSTL  Lambert-St Louis-BUF Buffalo
6h 53m1 stop Washington, D.C. Reagan-National
American Airlines Logo
10:43 am - 5:08 pmBUF  Buffalo-STL Lambert-St Louis
7h 25m1 stop Philadelphia
$309American Airlines
Wed, Sep 30 - Tue, Oct 13
American Airlines Logo
11:01 am - 5:18 pmSTL  Lambert-St Louis-BUF Buffalo
5h 17m1 stop Chicago O'Hare Intl
American Airlines Logo
2:55 pm - 8:32 pmBUF  Buffalo-STL Lambert-St Louis
6h 37m1 stop Washington, D.C. Reagan-National
$309American Airlines
Mon, Sep 21 - Tue, Sep 22
Southwest Logo
6:05 am - 11:10 amSTL  Lambert-St Louis-BUF Buffalo
4h 05m1 stop Baltimore/Washington
Southwest Logo
6:00 am - 10:05 amBUF  Buffalo-STL Lambert-St Louis
5h 05m1 stop Baltimore/Washington
$309Southwest
Thu, Sep 10 - Mon, Sep 14
Southwest Logo
2:25 pm - 10:45 pmSTL  Lambert-St Louis-BUF Buffalo
7h 20m1 stop Orlando
Southwest Logo
5:40 am - 11:35 amBUF  Buffalo-STL Lambert-St Louis
6h 55m1 stop Baltimore/Washington
$309Southwest
Sat, Sep 26 - Wed, Sep 30
United Airlines Logo
9:04 am - 4:43 pmSTL  Lambert-St Louis-BUF Buffalo
6h 39m1 stop Chicago O'Hare Intl
United Airlines Logo
10:46 am - 2:17 pmBUF  Buffalo-STL Lambert-St Louis
4h 31m1 stop Chicago O'Hare Intl
$309United Airlines
Tue, Sep 15 - Mon, Sep 21
United Airlines Logo
11:15 am - 4:54 pmSTL  Lambert-St Louis-BUF Buffalo
4h 39m1 stop Chicago O'Hare Intl
United Airlines Logo
5:58 pm - 10:59 pmBUF  Buffalo-STL Lambert-St Louis
6h 01m1 stop Chicago O'Hare Intl
$309United Airlines
Fri, Oct 16 - Sun, Oct 18
Delta Logo
6:05 pm - 11:59 pmSTL  Lambert-St Louis-BUF Buffalo
4h 54m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:15 am - 9:44 amBUF  Buffalo-STL Lambert-St Louis
4h 29m1 stop Detroit Metropolitan Wayne County
$366Delta
Fri, Sep 25 - Sun, Sep 27
Delta Logo
5:59 pm - 11:53 pmSTL  Lambert-St Louis-BUF Buffalo
4h 54m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:20 am - 9:29 amBUF  Buffalo-STL Lambert-St Louis
4h 09m1 stop Detroit Metropolitan Wayne County
$366Delta
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 from St. Louis to Buffalo with more confidence.

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

Round-trip flights from St. Louis to Buffalo start at $225. Prices are below average for this route right now, with typical round-trip fares ranging from $290 to $473. The lowest price found in the past 5 days was $225 on Frontier.

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

Monday is the cheapest day of the week to fly from St. Louis to Buffalo, it is 30% cheaper than the average day. Saturday is the most expensive day with flight prices 25% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • February is the cheapest month to fly from St. Louis to Buffalo at $337 round-trip.
  • April ($508) and March ($476) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 50% 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

$87
Best time to beat the crowds but there is an average 29% increase in price.
Most popular time to fly and prices are also 7% lower on average.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

    Only Economy Class is available on flights from St. Louis to Buffalo.

  • 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) - 26% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) - 21% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 17% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 16% of one-stop connections

    Chicago Midway (MDW) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 44% on the St. Louis to Buffalo route. Monday is the cheapest departure day at $260 round-trip on average, while Saturday is the most expensive at $460, a difference of $200. 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 long is a flight from St. Louis to Buffalo?

    A nonstop flight from St. Louis to Buffalo takes 0h 00m, covering 672 miles.

  • What are the earliest and latest flights from St. Louis to Buffalo?

    These are the earliest and latest flight times available from St. Louis to Buffalo:

    • Earliest: departs at 12:00 am and lands at 12:00 am
    • Latest: departs at 12:00 am and lands at 12:00 am.

    The flight takes about 0h 00m.

  • 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.

  • 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 $225 to $1,442. That means the highest observed fare was about 6x 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 $143, which is 47% below the typical average for this route.

  • 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 52m, compared with 4h 16m via Detroit Metropolitan Wayne County (DTW) and 4h 39m via Chicago O'Hare Intl (ORD).

  • 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.

  • 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

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

    Round-trip flights from St. Louis to Buffalo range from $290 to $473, with an average of $368 over the past 12 months. Anything below $290 counts as a good deal.

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 can be flexible, aim for a Monday departure instead of Saturday. On this route, Monday flights average $260 - about $200 less than Saturday (43% savings) based on the last 12 months.
  • If you can choose when to travel, plan your St. Louis to Buffalo trip for February. Fares historically average $337 round-trip in that month - typically $171 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
    - Comfort Inn and Suites Buffalo Airport
    - TownePlace Suites by Marriott Buffalo Airport

Everything you need to know for your flight from St. Louis to Buffalo

Information on your arrival and departure airports

St. Louis (STL)
Buffalo (BUF)