STL - BUF

$136 Find Cheap Flights from St. Louis to Buffalo - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$187
Typical prices: $290-$473
Frontier
Tue 10/23Tue 10/30
STL - BUF • 1 stop
Cheapest one-way
$136
Typical prices: $193-$378
Frontier
Wed 10/17
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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Flight Deals
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

Fri, Oct 23 - Fri, Oct 30
Frontier Logo
6:35 pm - 12:59 pmSTL  Lambert-St Louis-BUF Buffalo
17h 24m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
1:48 pm - 11:16 pmBUF  Buffalo-STL Lambert-St Louis
34h 28m2 stops Atlanta Hartsfield-Jackson Orlando
$187Frontier
Fri, Oct 23 - Mon, Oct 26
Frontier Logo
6:35 pm - 12:59 pmSTL  Lambert-St Louis-BUF Buffalo
17h 24m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
1:44 pm - 11:13 pmBUF  Buffalo-STL Lambert-St Louis
10h 29m2 stops Atlanta Hartsfield-Jackson Orlando
$223Frontier
Mon, Oct 19 - Mon, Oct 26
Southwest Logo
4:05 pm - 10:45 pmSTL  Lambert-St Louis-BUF Buffalo
5h 40m1 stop Orlando
Southwest Logo
7:35 pm - 11:20 pmBUF  Buffalo-STL Lambert-St Louis
4h 45m1 stop Chicago Midway
$309Southwest
Mon, Jan 11 - Wed, Jan 13
Southwest Logo
6:30 am - 12:00 pmSTL  Lambert-St Louis-BUF Buffalo
4h 30m1 stop Baltimore/Washington
Southwest Logo
10:25 am - 1:50 pmBUF  Buffalo-STL Lambert-St Louis
4h 25m1 stop Nashville Intl
$309Southwest
Thu, Oct 22 - Mon, Oct 26
American Airlines Logo
11:31 am - 5:08 pmSTL  Lambert-St Louis-BUF Buffalo
4h 37m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 12:46 pmBUF  Buffalo-STL Lambert-St Louis
7h 46m1 stop Washington, D.C. Reagan-National
$309American Airlines
Thu, Oct 15 - Mon, Oct 19
American Airlines Logo
5:08 pm - 11:59 pmSTL  Lambert-St Louis-BUF Buffalo
5h 51m1 stop Washington, D.C. Reagan-National
American Airlines Logo
5:50 pm - 12:19 amBUF  Buffalo-STL Lambert-St Louis
7h 29m1 stop Chicago O'Hare Intl
$309American Airlines
Wed, Oct 14 - Sat, Oct 17
Delta Logo
10:35 am - 3:13 pmSTL  Lambert-St Louis-BUF Buffalo
3h 38m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:15 am - 9:49 amBUF  Buffalo-STL Lambert-St Louis
4h 34m1 stop Detroit Metropolitan Wayne County
$309Delta
Wed, Oct 14 - Thu, Oct 15
Delta Logo
10:35 am - 3:13 pmSTL  Lambert-St Louis-BUF Buffalo
3h 38m1 stop Detroit Metropolitan Wayne County
Delta Logo
6:15 am - 9:49 amBUF  Buffalo-STL Lambert-St Louis
4h 34m1 stop Detroit Metropolitan Wayne County
$309Delta
Mon, Oct 12 - Wed, Oct 14
United Airlines Logo
1:29 pm - 8:47 pmSTL  Lambert-St Louis-BUF Buffalo
6h 18m1 stop Chicago O'Hare Intl
United Airlines Logo
5:45 pm - 9:21 pmBUF  Buffalo-STL Lambert-St Louis
4h 36m1 stop Chicago O'Hare Intl
$309United Airlines
Sun, Nov 8 - Sat, Nov 14
United Airlines Logo
7:30 am - 1:17 pmSTL  Lambert-St Louis-BUF Buffalo
4h 47m1 stop Chicago O'Hare Intl
United Airlines Logo
6:00 am - 10:44 amBUF  Buffalo-STL Lambert-St Louis
5h 44m1 stop Newark
$353United 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 $290 to $473. The lowest price found in the past 5 days was $187, on Frontier.

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 Saturday is the most expensive, with prices 25% higher.

What’s 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

$136
Beat the crowds with an average 48% drop in travelers.
The most popular month to fly with an average 187% 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 $290 to $473, with an average of $368 over the past 12 months. Anything below $290 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 $187 to $1,432. That means the highest observed fare was about 8x 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 $179, which is 34% 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) - 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

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

    Yes. Flexible dates can save you up to 44% on flights from St. Louis to Buffalo. 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 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.

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 Saturday. On this route, Monday flights average $260, about $200 less than Saturday fares (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

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