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STL - BUF

$114 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
American Airlines
Mon 11/19Fri 11/23
STL - BUF • 1 stop
Cheapest one-way
$114
Typical prices: $193-$378
Delta
Wed 11/7
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

Thu, Nov 19 - Mon, Nov 23
American Airlines Logo
5:00 am - 10:45 amSTL  Lambert-St Louis-BUF Buffalo
4h 45m1 stop Chicago O'Hare Intl
American Airlines Logo
12:04 pm - 5:51 pmBUF  Buffalo-STL Lambert-St Louis
6h 47m1 stop Boston Logan Intl
$227American Airlines
Mon, Nov 23 - Mon, Dec 7
Frontier Logo
6:05 pm - 8:24 pmSTL  Lambert-St Louis-BUF Buffalo
25h 19m1 stop Orlando
Frontier Logo
2:39 pm - 12:12 amBUF  Buffalo-STL Lambert-St Louis
10h 33m1 stop Orlando
$250Frontier
Sat, Oct 31 - Fri, Nov 6
Frontier Logo
4:26 pm - 6:52 pmSTL  Lambert-St Louis-BUF Buffalo
25h 26m1 stop Orlando
Frontier Logo
8:02 am - 5:42 pmBUF  Buffalo-STL Lambert-St Louis
10h 40m1 stop Atlanta Hartsfield-Jackson
$305Frontier
Wed, Nov 18 - Mon, Nov 23
Southwest Logo
10:30 am - 3:15 pmSTL  Lambert-St Louis-BUF Buffalo
3h 45m1 stop Nashville Intl
Southwest Logo
9:05 am - 3:15 pmBUF  Buffalo-STL Lambert-St Louis
7h 10m1 stop Nashville Intl
$309Southwest
Thu, Nov 19 - Wed, Nov 25
Southwest Logo
6:20 am - 10:40 amSTL  Lambert-St Louis-BUF Buffalo
3h 20m1 stop Chicago Midway
Southwest Logo
6:40 pm - 11:45 pmBUF  Buffalo-STL Lambert-St Louis
6h 05m1 stop Tampa
$309Southwest
Thu, Nov 19 - Mon, Nov 23
American Airlines Logo
5:00 am - 10:45 amSTL  Lambert-St Louis-BUF Buffalo
4h 45m1 stop Chicago O'Hare Intl
American Airlines Logo
5:28 am - 10:08 amBUF  Buffalo-STL Lambert-St Louis
5h 40m1 stop Washington, D.C. Reagan-National
$309American Airlines
Mon, Jan 18 - Thu, Jan 21
United Airlines Logo
4:57 pm - 10:59 pmSTL  Lambert-St Louis-BUF Buffalo
5h 02m1 stop Newark
United Airlines Logo
6:30 am - 12:15 pmBUF  Buffalo-STL Lambert-St Louis
6h 45m1 stop Chicago O'Hare Intl
$329United Airlines
Mon, Jan 18 - Thu, Jan 21
United Airlines Logo
4:57 pm - 10:59 pmSTL  Lambert-St Louis-BUF Buffalo
5h 02m1 stop Newark
United Airlines Logo
2:52 pm - 9:37 pmBUF  Buffalo-STL Lambert-St Louis
7h 45m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
$354United Airlines
Fri, Dec 18 - Sun, Dec 20
Delta Logo
5:31 pm - 12:04 amSTL  Lambert-St Louis-BUF Buffalo
5h 33m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:59 pm - 11:55 pmBUF  Buffalo-STL Lambert-St Louis
5h 56m1 stop Atlanta Hartsfield-Jackson
$429Delta
Thu, Oct 22 - Mon, Oct 26
Delta Logo
10:00 am - 5:28 pmSTL  Lambert-St Louis-BUF Buffalo
6h 28m1 stop New York LaGuardia
Delta Logo
6:55 pm - 11:54 pmBUF  Buffalo-STL Lambert-St Louis
5h 59m1 stop Atlanta Hartsfield-Jackson
$488Delta
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 American Airlines.

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

$114
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?

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

  • 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 $1,024. That means the highest observed fare was about 5x 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 $220, which is 19% 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
    • Thrifty
    • Alamo

  • 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
    • 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