Flights from Chicago to Ottawa

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 20 - Sun, Sep 21

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$509 Roundtrip, found 5 days ago

$509

Roundtrip

found 5 days ago

Select WestJet flight, departing Sat, Sep 20 from O'Hare Intl. to Macdonald-Cartier Intl., returning Sun, Sep 21, priced at $509 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$514 Roundtrip, found 5 days ago

$514

Roundtrip

found 5 days ago

Select Delta flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $514 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$527 Roundtrip, found 5 days ago

$527

Roundtrip

found 5 days ago

Select JetBlue Airways flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $527 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$535 Roundtrip, found 5 days ago

$535

Roundtrip

found 5 days ago

Select WestJet flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $535 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$538 Roundtrip, found 5 days ago

$538

Roundtrip

found 5 days ago

Select Delta flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $538 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$543 Roundtrip, found 5 days ago

$543

Roundtrip

found 5 days ago

Select Air Canada flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $543 found 5 days ago

Mon, Sep 15 - Sat, Sep 20

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$548 Roundtrip, found 5 days ago

$548

Roundtrip

found 5 days ago

Select United flight, departing Mon, Sep 15 from O'Hare Intl. to Macdonald-Cartier Intl., returning Sat, Sep 20, priced at $548 found 5 days ago

Tue, Sep 16 - Sun, Sep 21

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$551 Roundtrip, found 5 days ago

$551

Roundtrip

found 5 days ago

Select WestJet flight, departing Tue, Sep 16 from O'Hare Intl. to Macdonald-Cartier Intl., returning Sun, Sep 21, priced at $551 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$554 Roundtrip, found 5 days ago

$554

Roundtrip

found 5 days ago

Select United flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $554 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$559 Roundtrip, found 5 days ago

$559

Roundtrip

found 5 days ago

Select Air Canada flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $559 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$564 Roundtrip, found 5 days ago

$564

Roundtrip

found 5 days ago

Select United flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $564 found 5 days ago

Sun, Sep 21 - Mon, Sep 22

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$565 Roundtrip, found 5 days ago

$565

Roundtrip

found 5 days ago

Select WestJet flight, departing Sun, Sep 21 from O'Hare Intl. to Macdonald-Cartier Intl., returning Mon, Sep 22, priced at $565 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$567 Roundtrip, found 5 days ago

$567

Roundtrip

found 5 days ago

Select Air Canada flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $567 found 5 days ago

Fri, Sep 19 - Sat, Sep 20

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$577 Roundtrip, found 5 days ago

$577

Roundtrip

found 5 days ago

Select WestJet flight, departing Fri, Sep 19 from O'Hare Intl. to Macdonald-Cartier Intl., returning Sat, Sep 20, priced at $577 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$592 Roundtrip, found 5 days ago

$592

Roundtrip

found 5 days ago

Select Air Canada flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $592 found 5 days ago

Sat, Sep 20 - Sat, Sep 20

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$594 Roundtrip, found 5 days ago

$594

Roundtrip

found 5 days ago

Select Air Canada flight, departing Sat, Sep 20 from O'Hare Intl. to Macdonald-Cartier Intl., returning Sat, Sep 20, priced at $594 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$596 Roundtrip, found 5 days ago

$596

Roundtrip

found 5 days ago

Select Air Canada flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $596 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$597 Roundtrip, found 5 days ago

$597

Roundtrip

found 5 days ago

Select Air Canada flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $597 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$599 Roundtrip, found 5 days ago

$599

Roundtrip

found 5 days ago

Select Air Canada flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $599 found 5 days ago

Thu, Sep 18 - Tue, Sep 23

ORD

O'Hare Intl.

YOW

Macdonald-Cartier Intl.

$601 Roundtrip, found 5 days ago

$601

Roundtrip

found 5 days ago

Select United flight, departing Thu, Sep 18 from O'Hare Intl. to Macdonald-Cartier Intl., returning Tue, Sep 23, priced at $601 found 5 days ago