BUF - STL

$125 Find Cheap Flights from Buffalo to St. Louis - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$285
Typical prices: $324-$495
Frontier
Tue 11/20Fri 11/23
BUF - STL • 1 stop
Cheapest one-way
$125
Typical prices: $162-$334
Frontier
Tue 11/27
BUF - STL • 1 stop
Nonstop flights
There are currently no direct flights between Buffalo and St. Louis. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $331 (round-trip)
Shortest trip • 4h 07m (one-way)
Insights
Insights
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Flight Deals

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

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

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

Fri, Nov 20 - Mon, Nov 23
Frontier Logo
9:20 pm - 11:59 pmBUF  Buffalo-STL Lambert-St Louis
27h 39m1 stop Orlando
Frontier Logo
1:20 pm - 8:24 pmSTL  Lambert-St Louis-BUF Buffalo
6h 04m1 stop Orlando
$285Frontier
Fri, Dec 4 - Sat, Dec 5
Delta Logo
6:00 am - 11:29 amBUF  Buffalo-STL Lambert-St Louis
6h 29m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:32 am - 11:24 amSTL  Lambert-St Louis-BUF Buffalo
3h 52m1 stop Detroit Metropolitan Wayne County
$309Delta
Fri, Nov 20 - Mon, Nov 23
Frontier Logo
9:20 pm - 11:59 pmBUF  Buffalo-STL Lambert-St Louis
27h 39m1 stop Orlando
Frontier Logo
1:20 pm - 8:24 pmSTL  Lambert-St Louis-BUF Buffalo
6h 04m1 stop Orlando
$320Frontier
Thu, Nov 19 - Sun, Nov 22
Frontier Logo
12:54 pm - 11:16 pmBUF  Buffalo-STL Lambert-St Louis
11h 22m1 stop Orlando
Frontier Logo
6:05 pm - 8:24 pmSTL  Lambert-St Louis-BUF Buffalo
25h 19m1 stop Orlando
$330Frontier
Fri, Dec 4 - Sat, Dec 5
Southwest Logo
12:45 pm - 7:25 pmBUF  Buffalo-STL Lambert-St Louis
7h 40m2 stops Baltimore/Washington Pittsburgh
Southwest Logo
6:25 am - 1:30 pmSTL  Lambert-St Louis-BUF Buffalo
6h 05m1 stop Baltimore/Washington
$344Southwest
Thu, Feb 11 - Sun, Feb 14
Southwest Logo
10:50 am - 4:55 pmBUF  Buffalo-STL Lambert-St Louis
7h 05m1 stop Baltimore/Washington
Southwest Logo
3:35 pm - 10:25 pmSTL  Lambert-St Louis-BUF Buffalo
5h 50m1 stop Orlando
$346Southwest
Wed, Mar 3 - Sun, Mar 7
Delta Logo
6:00 am - 12:32 pmBUF  Buffalo-STL Lambert-St Louis
7h 32m1 stop New York LaGuardia
Delta Logo
6:45 am - 11:44 amSTL  Lambert-St Louis-BUF Buffalo
3h 59m1 stop Detroit Metropolitan Wayne County
$363Delta
Wed, Mar 3 - Sun, Mar 7
Delta Logo
6:00 am - 12:32 pmBUF  Buffalo-STL Lambert-St Louis
7h 32m1 stop New York LaGuardia
Delta Logo
6:45 am - 11:44 amSTL  Lambert-St Louis-BUF Buffalo
3h 59m1 stop Detroit Metropolitan Wayne County
$368Delta
Sat, Nov 28 - Sat, Dec 5
American Airlines Logo
6:02 am - 10:44 amBUF  Buffalo-STL Lambert-St Louis
5h 42m1 stop Chicago O'Hare Intl
American Airlines Logo
5:02 am - 10:56 amSTL  Lambert-St Louis-BUF Buffalo
4h 54m1 stop Chicago O'Hare Intl
$423American Airlines
Tue, Dec 22 - Sun, Dec 27
American Airlines Logo
6:25 am - 1:20 pmBUF  Buffalo-STL Lambert-St Louis
7h 55m1 stop Chicago O'Hare Intl
American Airlines Logo
6:00 am - 11:42 amSTL  Lambert-St Louis-BUF Buffalo
4h 42m1 stop Washington, D.C. Reagan-National
$441American Airlines
Booking Insights

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

Round-trip flights from Buffalo to St. Louis typically range from $324 to $495. The lowest price found in the past 5 days was $285, on Frontier.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Buffalo to St. Louis. It’s 19% cheaper than the average day, while Sunday is the most expensive, with prices 62% higher.

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

•January is the cheapest month to fly from Buffalo to St. Louis at $321 round-trip.
•March ($676) and June ($652) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 110% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Key details for Buffalo to St. Louis flights

Low season

February

Cheapest flight

$125
Beat the crowds with an average 37% drop in travelers.
The most popular month to fly with an average 33% increase in travelers.
One-way flight from Buffalo to St. Louis

When to book flights from Buffalo to St. Louis

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

Your Buffalo to St. Louis 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 Buffalo to St. Louis?

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

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

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

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

    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 Buffalo to St. Louis flight?

    Round-trip flights from Buffalo to St. Louis range from $324 to $495, with an average of $395 over the past 12 months. Anything below $324 counts as a good deal.

  • Have flight prices from Buffalo to St. Louis 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 $285 to $1,499. That means the highest observed fare was about 5x higher than the lowest one.

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

    One-way fares from Buffalo to St. Louis are currently lower than usual. Average one-way flight prices are about $191, which is 9% below the typical average for this route.

  • What car rental options are available at Lambert-St Louis Airport (STL)?

    Lambert-St Louis Airport (STL) hosts 5 major car rental companies, with daily rates averaging $77 for economy cars. Top options include:

    • Hertz
    • Budget
    • Alamo
    • Enterprise Rent-A-Car
    • Payless

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

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

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

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

    • Detroit Metropolitan Wayne County (DTW) - 39% of one-stop connections
    • Chicago Midway (MDW) - 28% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 15% of one-stop connections
    • Atlanta Hartsfield-Jackson (ATL) - 8% of one-stop connections

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

    Yes. Flexible dates can save you up to 50% on flights from Buffalo to St. Louis. Tuesday is the cheapest departure day at $321 round-trip on average, while Sunday is the most expensive at $641, a difference of $320.

    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 Buffalo to St. Louis?

    Flying via Chicago Midway (MDW) gives the shortest average 1-stop total travel time at 4h 07m, compared with 4h 25m via Washington, D.C. Reagan-National (DCA) and 4h 30m via Detroit Metropolitan Wayne County (DTW).

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

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

  • What popular places can I visit in St. Louis?

    Some of the most popular sights in St. Louis are Busch Stadium, Enterprise Center and America's Center Convention Complex. These are among the most viewed places in St. Louis on KAYAK.

Your guide to booking Buffalo to St. Louis 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 Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $321, about $320 less than Sunday fares (50% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Buffalo to St. Louis trip for January. Fares historically average $321 round-trip in that month - typically $355 less than the most expensive month, which is March (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lambert-St Louis Airport.

    • Renaissance St. Louis Airport Hotel
    • Drury Inn & Suites St. Louis Airport
    • DoubleTree by Hilton St. Louis Airport

More options for your flight from Buffalo to St. Louis

Complete your trip to St. Louis with a hotel stay or car rental