Flights from St. Louis to Buffalo

Cheapest flights from St. Louis

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Jul 30 - Fri, Aug 1

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$307 Roundtrip, found 1 day ago

$307

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Fri, Aug 1, priced at $307 found 1 day ago

Sat, Aug 2 - Mon, Aug 11

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$312 Roundtrip, found 1 day ago

$312

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 2 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Mon, Aug 11, priced at $312 found 1 day ago

Sun, Aug 3 - Mon, Aug 11

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$316 Roundtrip, found 1 day ago

$316

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Aug 3 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Mon, Aug 11, priced at $316 found 1 day ago

Wed, Jul 30 - Sat, Aug 2

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$335 Roundtrip, found 1 day ago

$335

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Sat, Aug 2, priced at $335 found 1 day ago

Wed, Jul 30 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$339 Roundtrip, found 1 day ago

$339

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Sun, Aug 3, priced at $339 found 1 day ago

Sat, Aug 2 - Thu, Aug 7

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$340 Roundtrip, found 1 day ago

$340

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 2 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Thu, Aug 7, priced at $340 found 1 day ago

Sat, Aug 2 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$344 Roundtrip, found 1 day ago

$344

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 2 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Sun, Aug 3, priced at $344 found 1 day ago

Thu, Jul 31 - Fri, Aug 1

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$374 Roundtrip, found 1 day ago

$374

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Fri, Aug 1, priced at $374 found 1 day ago

Wed, Jul 30 - Mon, Aug 4

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$376 Roundtrip, found 1 day ago

$376

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Jul 30 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Mon, Aug 4, priced at $376 found 1 day ago

Sat, Aug 2 - Mon, Aug 4

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$381 Roundtrip, found 1 day ago

$381

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Aug 2 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Mon, Aug 4, priced at $381 found 1 day ago

Fri, Aug 1 - Mon, Aug 11

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$385 Roundtrip, found 1 day ago

$385

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 1 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Mon, Aug 11, priced at $385 found 1 day ago

Thu, Jul 31 - Sat, Aug 2

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$402 Roundtrip, found 1 day ago

$402

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Sat, Aug 2, priced at $402 found 1 day ago

Thu, Jul 31 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$406 Roundtrip, found 1 day ago

$406

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Sun, Aug 3, priced at $406 found 1 day ago

Fri, Aug 1 - Sat, Aug 2

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$413 Roundtrip, found 1 day ago

$413

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 1 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Sat, Aug 2, priced at $413 found 1 day ago

Fri, Aug 1 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$417 Roundtrip, found 1 day ago

$417

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 1 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Sun, Aug 3, priced at $417 found 1 day ago

Thu, Jul 31 - Mon, Aug 4

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$443 Roundtrip, found 1 day ago

$443

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Thu, Jul 31 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Mon, Aug 4, priced at $443 found 1 day ago

Fri, Aug 1 - Mon, Aug 4

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$454 Roundtrip, found 1 day ago

$454

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Aug 1 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Mon, Aug 4, priced at $454 found 1 day ago

Tue, Jul 29 - Tue, Aug 5

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$484 Roundtrip, found 1 day ago

$484

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Jul 29 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Tue, Aug 5, priced at $484 found 1 day ago

Fri, Aug 1 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$527 Roundtrip, found 1 day ago

$527

Roundtrip

found 1 day ago

Select American Airlines flight, departing Fri, Aug 1 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Sun, Aug 3, priced at $527 found 1 day ago

Fri, Aug 1 - Sun, Aug 3

STL

Lambert-St. Louis Intl.

BUF

Buffalo Niagara Intl.

$562 Roundtrip, found 1 day ago

$562

Roundtrip

found 1 day ago

Select United flight, departing Fri, Aug 1 from Lambert-St. Louis Intl. to Buffalo Niagara Intl., returning Sun, Aug 3, priced at $562 found 1 day ago