$139 Cheap flights from Lambert-St. Louis Intl. to Buffalo Niagara Intl. (STL to BUF)

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Find The Best Dates To Fly from Lambert-St. Louis Intl. to Buffalo Niagara Intl.

Amazing STL to BUF Flight Deals

The cheapest flights to Buffalo Niagara Intl. found within the past 7 days were $118 round trip and $139 one way. Prices and availability subject to change. Additional terms may apply.

Tue, Dec 3 - Mon, Dec 9
STL
St. Louis
BUF
Buffalo
$118 Roundtrip, found 1 day ago
$118
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Dec 3 from St. Louis to Buffalo, returning Mon, Dec 9, priced at $118 found 1 day ago
Tue, Dec 3 - Sun, Dec 8
STL
St. Louis
BUF
Buffalo
$128 Roundtrip, found 1 day ago
$128
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Dec 3 from St. Louis to Buffalo, returning Sun, Dec 8, priced at $128 found 1 day ago
Fri, Dec 6 - Sun, Dec 8
STL
St. Louis
BUF
Buffalo
$138 Roundtrip, found 1 day ago
$138
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Dec 6 from St. Louis to Buffalo, returning Sun, Dec 8, priced at $138 found 1 day ago
Fri, Dec 6 - Tue, Dec 10
STL
St. Louis
BUF
Buffalo
$148 Roundtrip, found 1 day ago
$148
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Dec 6 from St. Louis to Buffalo, returning Tue, Dec 10, priced at $148 found 1 day ago
Thu, Nov 21 - Thu, Nov 28
STL
St. Louis
BUF
Buffalo
$207 Roundtrip, found 16 hours ago
$207
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Thu, Nov 21 from St. Louis to Buffalo, returning Thu, Nov 28, priced at $207 found 16 hours ago
Thu, Nov 21 - Wed, Dec 4
STL
St. Louis
BUF
Buffalo
$208 Roundtrip, found 16 hours ago
$208
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Thu, Nov 21 from St. Louis to Buffalo, returning Wed, Dec 4, priced at $208 found 16 hours ago
Sun, Nov 24 - Thu, Nov 28
STL
St. Louis
BUF
Buffalo
$217 Roundtrip, found 16 hours ago
$217
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Sun, Nov 24 from St. Louis to Buffalo, returning Thu, Nov 28, priced at $217 found 16 hours ago
Thu, Dec 5 - Mon, Dec 9
STL
St. Louis
BUF
Buffalo
$218 Roundtrip, found 1 day ago
$218
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Dec 5 from St. Louis to Buffalo, returning Mon, Dec 9, priced at $218 found 1 day ago
Sun, Nov 17 - Fri, Nov 22
STL
St. Louis
BUF
Buffalo
$227 Roundtrip, found 6 days ago
$227
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Sun, Nov 17 from St. Louis to Buffalo, returning Fri, Nov 22, priced at $227 found 6 days ago
Thu, Dec 5 - Sun, Dec 8
STL
St. Louis
BUF
Buffalo
$228 Roundtrip, found 1 day ago
$228
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Thu, Dec 5 from St. Louis to Buffalo, returning Sun, Dec 8, priced at $228 found 1 day ago

Frequently asked questions

Can I catch a flight from Lambert Field to Buffalo Niagara International Airport right now?
Ensure you go to the Covid-19 Travel Advisor to see if there are any current travel advice reports or quarantine requirements in effect in Buffalo Niagara International Airport when jet-setting from STL.
Are there direct flights from Lambert Field to BUF?
Southwest Airlines, American Airlines and United Airlines will take you to Buffalo from St. Louis with just one stopover. Unfortunately, there are no direct flights between St. Louis Lambert International Airport and Buffalo Niagara International Airport just yet.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Buffalo Niagara Intl. Airport (BUF), please visit our Customer Service Portal.
How long is the flight from STL to Buffalo Niagara Intl. Airport (BUF)?
Step off the plane feeling well-rested by enjoying some shut-eye and a snack during your flight to BUF. With a typical travel time of 4 hours and 20 minutes from Lambert-St. Louis Intl. Airport (STL), you’ll have ample time to enjoy both.
What is the flight distance from St. Louis Lambert International Airport to Buffalo Niagara Intl. Airport (BUF)?
With only 670 mi separating Lambert Field and BUF, you won’t have long between the fasten seat belt sign turning off and the captain preparing the wheels for landing.
What airlines fly from Lambert Field to Buffalo Niagara Intl. Airport (BUF)?
You’ll need to make at least one stopover if you’re on your way from Lambert-St. Louis Intl. Airport (STL) to Buffalo Niagara International Airport, as no airlines offer direct flights on this route. Take advantage of your layover time by freshening up, giving your legs a stretch and having a shop.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with American Airlines, Delta or United Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

 

Traveling From
Lambert-St. Louis Intl.
Traveling To
Buffalo Niagara Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$118

Route Info

Flight path for flights from Lambert-St. Louis International Airport to Buffalo Niagara International Airport


Origin:
STL - Lambert-St. Louis International Airport
Destination:
BUF - Buffalo Niagara International Airport
Distance:
733.00 miles


Airlines & Aircraft Used on STL to BUF Flight Routes


Airline Carrier
Aircraft
American Airlines
Airbus A320-100/200
United Airlines
Airbus A319

Discover our best flights from St. Louis STL to Buffalo BUF. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from St. Louis STL to Buffalo BUF at the right price  

Airfares to Buffalo BUF from St. Louis STL currently cost between $118 and $228. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from St. Louis STL to Buffalo BUF 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from St. Louis STL to Buffalo BUF on Travelocity starting at $139. Prices and availability subject to change. Additional terms may apply. 

 

Get to Buffalo BUF from St. Louis STL quicker with direct flights. 

Get to Buffalo faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to BUF from STL to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from St. Louis STL to Buffalo BUF

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to BUF from STL. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from St. Louis STL to Buffalo BUF today 

If you’re flexible about when you travel, December is usually the cheapest month to fly from St. Louis STL to Buffalo BUF. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Buffalo BUF from St. Louis STL 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to BUF from STL have this option.  

 

Travel with confidence when you book flights to Buffalo BUF from St. Louis STL with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.