Flights from Chicago to Lancaster

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.

Sat, Sep 6 - Sat, Sep 13

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$188 Roundtrip, found 1 day ago

$188

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Sep 6 from O'Hare Intl. to Buffalo Niagara Intl., returning Sat, Sep 13, priced at $188 found 1 day ago

Thu, Sep 4 - Wed, Sep 10

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$193 Roundtrip, found 3 days ago

$193

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Thu, Sep 4 from O'Hare Intl. to Buffalo Niagara Intl., returning Wed, Sep 10, priced at $193 found 3 days ago

Thu, Sep 4 - Wed, Sep 10

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$195 Roundtrip, found 3 days ago

$195

Roundtrip

found 3 days ago

Select JetBlue Airways flight, departing Thu, Sep 4 from O'Hare Intl. to Buffalo Niagara Intl., returning Wed, Sep 10, priced at $195 found 3 days ago

Tue, Sep 9 - Sat, Sep 13

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$197 Roundtrip, found 1 day ago

$197

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Sep 9 from O'Hare Intl. to Buffalo Niagara Intl., returning Sat, Sep 13, priced at $197 found 1 day ago

Sat, Sep 6 - Mon, Sep 15

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$198 Roundtrip, found 1 day ago

$198

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sat, Sep 6 from O'Hare Intl. to Buffalo Niagara Intl., returning Mon, Sep 15, priced at $198 found 1 day ago

Mon, Sep 8 - Sun, Sep 14

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$204 Roundtrip, found 1 day ago

$204

Roundtrip

found 1 day ago

Select United flight, departing Mon, Sep 8 from O'Hare Intl. to Buffalo Niagara Intl., returning Sun, Sep 14, priced at $204 found 1 day ago

Thu, Sep 4 - Tue, Sep 9

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$205 Roundtrip, found 3 days ago

$205

Roundtrip

found 3 days ago

Select JetBlue Airways flight, departing Thu, Sep 4 from O'Hare Intl. to Buffalo Niagara Intl., returning Tue, Sep 9, priced at $205 found 3 days ago

Mon, Sep 8 - Wed, Sep 17

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$208 Roundtrip, found 1 day ago

$208

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Sep 8 from O'Hare Intl. to Buffalo Niagara Intl., returning Wed, Sep 17, priced at $208 found 1 day ago

Fri, Sep 5 - Mon, Sep 15

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$208 Roundtrip, found 1 day ago

$208

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Fri, Sep 5 from O'Hare Intl. to Buffalo Niagara Intl., returning Mon, Sep 15, priced at $208 found 1 day ago

Mon, Sep 8 - Sun, Sep 14

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$211 Roundtrip, found 1 day ago

$211

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Mon, Sep 8 from O'Hare Intl. to Buffalo Niagara Intl., returning Sun, Sep 14, priced at $211 found 1 day ago

Mon, Sep 8 - Sun, Sep 14

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$214 Roundtrip, found 1 day ago

$214

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Sep 8 from O'Hare Intl. to Buffalo Niagara Intl., returning Sun, Sep 14, priced at $214 found 1 day ago

Wed, Sep 10 - Tue, Sep 16

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$220 Roundtrip, found 1 day ago

$220

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Wed, Sep 10 from O'Hare Intl. to Buffalo Niagara Intl., returning Tue, Sep 16, priced at $220 found 1 day ago

Fri, Sep 5 - Wed, Sep 17

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$222 Roundtrip, found 1 day ago

$222

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Fri, Sep 5 from O'Hare Intl. to Buffalo Niagara Intl., returning Wed, Sep 17, priced at $222 found 1 day ago

Wed, Sep 10 - Mon, Sep 15

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$225 Roundtrip, found 1 day ago

$225

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Wed, Sep 10 from O'Hare Intl. to Buffalo Niagara Intl., returning Mon, Sep 15, priced at $225 found 1 day ago

Thu, Sep 4 - Wed, Sep 10

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$226 Roundtrip, found 3 days ago

$226

Roundtrip

found 3 days ago

Select American Airlines flight, departing Thu, Sep 4 from O'Hare Intl. to Buffalo Niagara Intl., returning Wed, Sep 10, priced at $226 found 3 days ago

Wed, Sep 10 - Sat, Sep 13

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$233 Roundtrip, found 1 day ago

$233

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Sep 10 from O'Hare Intl. to Buffalo Niagara Intl., returning Sat, Sep 13, priced at $233 found 1 day ago

Mon, Sep 8 - Sun, Sep 14

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$234 Roundtrip, found 1 day ago

$234

Roundtrip

found 1 day ago

Select United flight, departing Mon, Sep 8 from O'Hare Intl. to Buffalo Niagara Intl., returning Sun, Sep 14, priced at $234 found 1 day ago

Thu, Sep 4 - Wed, Sep 10

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$235 Roundtrip, found 3 days ago

$235

Roundtrip

found 3 days ago

Select JetBlue Airways flight, departing Thu, Sep 4 from O'Hare Intl. to Buffalo Niagara Intl., returning Wed, Sep 10, priced at $235 found 3 days ago

Mon, Sep 8 - Sun, Sep 14

ORD

O'Hare Intl.

BUF

Buffalo Niagara Intl.

$237 Roundtrip, found 1 day ago

$237

Roundtrip

found 1 day ago

Select United flight, departing Mon, Sep 8 from O'Hare Intl. to Buffalo Niagara Intl., returning Sun, Sep 14, priced at $237 found 1 day ago

Wed, Aug 13 - Fri, Aug 15

MDW

Midway Intl.

BUF

Buffalo Niagara Intl.

$498 Roundtrip, found 1 day ago

$498

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Aug 13 from Midway Intl. to Buffalo Niagara Intl., returning Fri, Aug 15, priced at $498 found 1 day ago