Flights from Chicago to Niagara Falls

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.

Tue, Sep 9 - Tue, Sep 9

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$154 Roundtrip, found 6 days ago

$154

Roundtrip

found 6 days ago

Select United flight, departing Tue, Sep 9 from O'Hare Intl. to Pearson Intl., returning Tue, Sep 9, priced at $154 found 6 days ago

Fri, Sep 5 - Tue, Sep 9

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$168 Roundtrip, found 6 days ago

$168

Roundtrip

found 6 days ago

Select Air Canada flight, departing Fri, Sep 5 from O'Hare Intl. to Pearson Intl., returning Tue, Sep 9, priced at $168 found 6 days ago

Wed, Jul 9 - Tue, Jul 15

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$217 Roundtrip, found 5 days ago

$217

Roundtrip

found 5 days ago

Select United flight, departing Wed, Jul 9 from O'Hare Intl. to Pearson Intl., returning Tue, Jul 15, priced at $217 found 5 days ago

Sat, Jul 12 - Mon, Jul 14

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$287 Roundtrip, found 5 days ago

$287

Roundtrip

found 5 days ago

Select Delta flight, departing Sat, Jul 12 from O'Hare Intl. to Pearson Intl., returning Mon, Jul 14, priced at $287 found 5 days ago

Sat, Jun 21 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$308 Roundtrip, found 2 days ago

$308

Roundtrip

found 2 days ago

Select American Airlines flight, departing Sat, Jun 21 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $308 found 2 days ago

Wed, Jul 9 - Sun, Jul 13

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$318 Roundtrip, found 5 days ago

$318

Roundtrip

found 5 days ago

Select United flight, departing Wed, Jul 9 from O'Hare Intl. to Pearson Intl., returning Sun, Jul 13, priced at $318 found 5 days ago

Thu, Jun 19 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$355 Roundtrip, found 2 days ago

$355

Roundtrip

found 2 days ago

Select American Airlines flight, departing Thu, Jun 19 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $355 found 2 days ago

Sun, Jul 13 - Sun, Jul 13

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$365 Roundtrip, found 5 days ago

$365

Roundtrip

found 5 days ago

Select United flight, departing Sun, Jul 13 from O'Hare Intl. to Pearson Intl., returning Sun, Jul 13, priced at $365 found 5 days ago

Thu, Jun 19 - Wed, Jun 25

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$392 Roundtrip, found 2 days ago

$392

Roundtrip

found 2 days ago

Select American Airlines flight, departing Thu, Jun 19 from O'Hare Intl. to Pearson Intl., returning Wed, Jun 25, priced at $392 found 2 days ago

Sat, Jun 21 - Mon, Jun 23

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$394 Roundtrip, found 2 days ago

$394

Roundtrip

found 2 days ago

Select American Airlines flight, departing Sat, Jun 21 from O'Hare Intl. to Pearson Intl., returning Mon, Jun 23, priced at $394 found 2 days ago

Thu, Jun 19 - Thu, Jun 19

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$441 Roundtrip, found 2 days ago

$441

Roundtrip

found 2 days ago

Select American Airlines flight, departing Thu, Jun 19 from O'Hare Intl. to Pearson Intl., returning Thu, Jun 19, priced at $441 found 2 days ago

Mon, Jun 16 - Wed, Jun 25

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$473 Roundtrip, found 2 days ago

$473

Roundtrip

found 2 days ago

Select American Airlines flight, departing Mon, Jun 16 from O'Hare Intl. to Pearson Intl., returning Wed, Jun 25, priced at $473 found 2 days ago

Wed, Jun 18 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$475 Roundtrip, found 1 day ago

$475

Roundtrip

found 1 day ago

Select Air Canada flight, departing Wed, Jun 18 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $475 found 1 day ago

Wed, Jun 18 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$485 Roundtrip, found 1 day ago

$485

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Jun 18 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $485 found 1 day ago

Wed, Jun 18 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$491 Roundtrip, found 1 day ago

$491

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Jun 18 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $491 found 1 day ago

Wed, Jun 18 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$500 Roundtrip, found 1 day ago

$500

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Jun 18 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $500 found 1 day ago

Wed, Jun 18 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$509 Roundtrip, found 1 day ago

$509

Roundtrip

found 1 day ago

Select Air Canada flight, departing Wed, Jun 18 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $509 found 1 day ago

Wed, Jun 18 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$512 Roundtrip, found 1 day ago

$512

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Jun 18 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $512 found 1 day ago

Wed, Jun 18 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$629 Roundtrip, found 1 day ago

$629

Roundtrip

found 1 day ago

Select Air Canada flight, departing Wed, Jun 18 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $629 found 1 day ago

Wed, Jun 18 - Sun, Jun 22

ORD

O'Hare Intl.

YYZ

Pearson Intl.

$772 Roundtrip, found 1 day ago

$772

Roundtrip

found 1 day ago

Select WestJet flight, departing Wed, Jun 18 from O'Hare Intl. to Pearson Intl., returning Sun, Jun 22, priced at $772 found 1 day ago