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

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

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Find the cheapest month to fly from Buffalo (BUF) to St. Louis (STL)

September is typically the cheapest month to fly

From CA $243 - CA $580 per traveller.

Graph displaying average flight prices per month

Flight from Buffalo to St. Louis (BUF - STL) route information
Origin airport
Buffalo Niagara Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
CA $309
Distance
1076 km

Buffalo to St. Louis Flights

The easy way to book your flights from Buffalo to St. Louis 

With Expedia, it’s simple to find and book flights to St. Louis from Buffalo whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Lambert-St. Louis Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Buffalo to St. Louis today, tomorrow, or this week.  

 

Save dollars with cheap flights from Buffalo Niagara Intl., BUF to Lambert-St. Louis Intl., STL 

Sort your search results by price to find great deals on your flight from Buffalo to St. Louis—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to St. Louis from Buffalo currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to St. Louis  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to St. Louis from Buffalo 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to St. Louis with Expedia today.

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 . 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.

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