Gateway Arch in St. Louis Missouri, America, USA.

CA $212 Cheap Flights from Buffalo (BUF) to St. Louis (STL)

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Lambert-St. Louis International Airport (STL)

  • Be in the know

    Get alerts if flight prices drop or rise*
  • Book smarter

    Save up to 30% on select hotels after you book a flight*
  • Earn twice

    Earn your airline miles on top of our rewards

Cheap flights from Buffalo (BUF) to St. Louis (STL)

Prices were available within the past 7 days and start at CA $212 for one-way flights and CA $428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Delta
Delta
Delta
Delta
Delta
Delta
Delta
American Airlines
United

Alternative airports near St. Louis

Prices were available within the past 7 days. Prices and availability are subject to change.

Frequently asked questions

How much is a flight from BUF to Lambert Field?
Start packing your bags, because round-trip flights between BUF and STL start from CA $428. That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can increase quickly, so book today to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Buffalo Niagara International Airport to Lambert Field?
This varies between airlines, as each one has its own terms and conditions. Head to the Customer Service Portal, where there are instructions on how to cancel your flight online.
How do I find cheap flights from Buffalo Niagara International Airport to STL that have flexible change policies?
Plenty of carriers offer the option to move your flight at no extra charge. All you pay is the cost difference between flights. When looking for Buffalo Niagara International Airport to STL flights, you'll see a "No change fees" filter for you to select.
How many hours is the flight from Buffalo Niagara Intl. Airport (BUF) to STL?
The average flight time between BUF and Lambert Field is 4 hours and 57 minutes. If you get peckish on longer flights, pack some snacks in your carry-on bag.
How far is the flight from BUF to Lambert-St. Louis Intl. Airport (STL)?
You won't need a lengthy novel for this flight — it's only 1,100 kilometres from Buffalo to St. Louis. Sit down, enjoy the in-flight service and you'll be in St. Louis in no time.
Which airlines fly direct from Buffalo Niagara International Airport to STL?
If you want to travel straight from Buffalo Niagara International Airport to Lambert Field, you'll need to book a flight with one or more stops. Unfortunately, there are no airlines that fly directly on this route.
Are BUF to Lambert Field flight tickets cheaper when they're purchased at the last minute?
It is possible to get a fantastic last-minute deal from Buffalo Niagara Intl. Airport (BUF) to Lambert-St. Louis Intl. Airport (STL), but there's no guarantee. As many airlines release seats up to 12 months in advance, it's worthwhile keeping an eye on fares early and being ready to pounce when you spot a bargain. Expedia compares air carrier prices and updates flight deals regularly, so you can feel confident knowing you're always seeing the latest offers.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
CA $427
Distance
1076 km

Book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.