Flights from Chicago to Buffalo

Cheapest flights from Chicago

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 - Sat, Aug 9

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$211 Roundtrip, found 20 hours ago

$211

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Wed, Jul 30 from O'Hare Intl. to Buffalo Niagara Intl., returning Sat, Aug 9, priced at $211 found 20 hours ago

Sat, Aug 2 - Sat, Aug 9

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$212 Roundtrip, found 20 hours ago

$212

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to Buffalo Niagara Intl., returning Sat, Aug 9, priced at $212 found 20 hours ago

Wed, Jul 30 - Fri, Aug 8

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$228 Roundtrip, found 20 hours ago

$228

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Wed, Jul 30 from O'Hare Intl. to Buffalo Niagara Intl., returning Fri, Aug 8, priced at $228 found 20 hours ago

Sat, Aug 2 - Fri, Aug 8

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$231 Roundtrip, found 20 hours ago

$231

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to Buffalo Niagara Intl., returning Fri, Aug 8, priced at $231 found 20 hours ago

Tue, Jul 29 - Thu, Aug 7

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$238 Roundtrip, found 20 hours ago

$238

Roundtrip

found 20 hours ago

Select JetBlue Airways flight, departing Tue, Jul 29 from O'Hare Intl. to Buffalo Niagara Intl., returning Thu, Aug 7, priced at $238 found 20 hours ago

Sat, Aug 2 - Wed, Aug 6

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$241 Roundtrip, found 20 hours ago

$241

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to Buffalo Niagara Intl., returning Wed, Aug 6, priced at $241 found 20 hours ago

Tue, Jul 29 - Sun, Aug 10

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$243 Roundtrip, found 20 hours ago

$243

Roundtrip

found 20 hours ago

Select JetBlue Airways flight, departing Tue, Jul 29 from O'Hare Intl. to Buffalo Niagara Intl., returning Sun, Aug 10, priced at $243 found 20 hours ago

Sun, Aug 3 - Fri, Aug 8

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$248 Roundtrip, found 20 hours ago

$248

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Sun, Aug 3 from O'Hare Intl. to Buffalo Niagara Intl., returning Fri, Aug 8, priced at $248 found 20 hours ago

Tue, Jul 29 - Wed, Aug 6

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$253 Roundtrip, found 20 hours ago

$253

Roundtrip

found 20 hours ago

Select JetBlue Airways flight, departing Tue, Jul 29 from O'Hare Intl. to Buffalo Niagara Intl., returning Wed, Aug 6, priced at $253 found 20 hours ago

Sun, Aug 3 - Wed, Aug 6

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$258 Roundtrip, found 20 hours ago

$258

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Sun, Aug 3 from O'Hare Intl. to Buffalo Niagara Intl., returning Wed, Aug 6, priced at $258 found 20 hours ago

Sat, Aug 2 - Mon, Aug 11

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$261 Roundtrip, found 20 hours ago

$261

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to Buffalo Niagara Intl., returning Mon, Aug 11, priced at $261 found 20 hours ago

Tue, Jul 29 - Mon, Aug 11

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$263 Roundtrip, found 20 hours ago

$263

Roundtrip

found 20 hours ago

Select JetBlue Airways flight, departing Tue, Jul 29 from O'Hare Intl. to Buffalo Niagara Intl., returning Mon, Aug 11, priced at $263 found 20 hours ago

Sat, Aug 2 - Tue, Aug 5

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$269 Roundtrip, found 20 hours ago

$269

Roundtrip

found 20 hours ago

Select Delta flight, departing Sat, Aug 2 from O'Hare Intl. to Buffalo Niagara Intl., returning Tue, Aug 5, priced at $269 found 20 hours ago

Sun, Aug 3 - Mon, Aug 11

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$278 Roundtrip, found 20 hours ago

$278

Roundtrip

found 20 hours ago

Select Frontier Airlines flight, departing Sun, Aug 3 from O'Hare Intl. to Buffalo Niagara Intl., returning Mon, Aug 11, priced at $278 found 20 hours ago

Thu, Jul 31 - Tue, Aug 5

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$286 Roundtrip, found 20 hours ago

$286

Roundtrip

found 20 hours ago

Select Delta flight, departing Thu, Jul 31 from O'Hare Intl. to Buffalo Niagara Intl., returning Tue, Aug 5, priced at $286 found 20 hours ago

Fri, Aug 1 - Fri, Aug 8

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$299 Roundtrip, found 21 hours ago

$299

Roundtrip

found 21 hours ago

Select American Airlines flight, departing Fri, Aug 1 from O'Hare Intl. to Buffalo Niagara Intl., returning Fri, Aug 8, priced at $299 found 21 hours ago

Fri, Aug 1 - Fri, Aug 8

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$300 Roundtrip, found 21 hours ago

$300

Roundtrip

found 21 hours ago

Select American Airlines flight, departing Fri, Aug 1 from O'Hare Intl. to Buffalo Niagara Intl., returning Fri, Aug 8, priced at $300 found 21 hours ago

Fri, Aug 1 - Tue, Aug 5

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$302 Roundtrip, found 20 hours ago

$302

Roundtrip

found 20 hours ago

Select Delta flight, departing Fri, Aug 1 from O'Hare Intl. to Buffalo Niagara Intl., returning Tue, Aug 5, priced at $302 found 20 hours ago

Fri, Aug 1 - Fri, Aug 8

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$322 Roundtrip, found 21 hours ago

$322

Roundtrip

found 21 hours ago

Select American Airlines flight, departing Fri, Aug 1 from O'Hare Intl. to Buffalo Niagara Intl., returning Fri, Aug 8, priced at $322 found 21 hours ago

Fri, Aug 1 - Fri, Aug 8

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$322 Roundtrip, found 21 hours ago

$322

Roundtrip

found 21 hours ago

Select United flight, departing Fri, Aug 1 from O'Hare Intl. to Buffalo Niagara Intl., returning Fri, Aug 8, priced at $322 found 21 hours ago