Flights from Montreal to Seattle

Cheapest flights from Montreal

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, Aug 9 - Sun, Aug 24

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$652 Roundtrip, found 2 days ago

$652

Roundtrip

found 2 days ago

Select United flight, departing Sat, Aug 9 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Sun, Aug 24, priced at $652 found 2 days ago

Wed, Aug 13 - Mon, Aug 18

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$731 Roundtrip, found 2 days ago

$731

Roundtrip

found 2 days ago

Select WestJet flight, departing Wed, Aug 13 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Mon, Aug 18, priced at $731 found 2 days ago

Sat, Aug 9 - Tue, Aug 19

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$739 Roundtrip, found 2 days ago

$739

Roundtrip

found 2 days ago

Select United flight, departing Sat, Aug 9 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $739 found 2 days ago

Mon, Aug 11 - Tue, Aug 19

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$741 Roundtrip, found 2 days ago

$741

Roundtrip

found 2 days ago

Select WestJet flight, departing Mon, Aug 11 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $741 found 2 days ago

Sat, Aug 9 - Mon, Aug 18

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$748 Roundtrip, found 2 days ago

$748

Roundtrip

found 2 days ago

Select United flight, departing Sat, Aug 9 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Mon, Aug 18, priced at $748 found 2 days ago

Mon, Aug 11 - Fri, Aug 22

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$752 Roundtrip, found 2 days ago

$752

Roundtrip

found 2 days ago

Select WestJet flight, departing Mon, Aug 11 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Fri, Aug 22, priced at $752 found 2 days ago

Thu, Aug 7 - Sun, Aug 24

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$762 Roundtrip, found 2 days ago

$762

Roundtrip

found 2 days ago

Select Air Canada flight, departing Thu, Aug 7 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Sun, Aug 24, priced at $762 found 2 days ago

Sun, Aug 10 - Mon, Aug 18

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$766 Roundtrip, found 2 days ago

$766

Roundtrip

found 2 days ago

Select WestJet flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Mon, Aug 18, priced at $766 found 2 days ago

Sun, Aug 10 - Tue, Aug 19

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$775 Roundtrip, found 2 days ago

$775

Roundtrip

found 2 days ago

Select WestJet flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $775 found 2 days ago

Sun, Aug 10 - Fri, Aug 22

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$786 Roundtrip, found 2 days ago

$786

Roundtrip

found 2 days ago

Select WestJet flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Fri, Aug 22, priced at $786 found 2 days ago

Thu, Aug 7 - Mon, Aug 18

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$801 Roundtrip, found 2 days ago

$801

Roundtrip

found 2 days ago

Select WestJet flight, departing Thu, Aug 7 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Mon, Aug 18, priced at $801 found 2 days ago

Thu, Aug 7 - Tue, Aug 19

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$810 Roundtrip, found 2 days ago

$810

Roundtrip

found 2 days ago

Select WestJet flight, departing Thu, Aug 7 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Tue, Aug 19, priced at $810 found 2 days ago

Thu, Aug 7 - Fri, Aug 22

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$821 Roundtrip, found 2 days ago

$821

Roundtrip

found 2 days ago

Select WestJet flight, departing Thu, Aug 7 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Fri, Aug 22, priced at $821 found 2 days ago

Sun, Aug 10 - Thu, Aug 21

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$842 Roundtrip, found 2 days ago

$842

Roundtrip

found 2 days ago

Select WestJet flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Thu, Aug 21, priced at $842 found 2 days ago

Sun, Aug 10 - Thu, Aug 21

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$852 Roundtrip, found 2 days ago

$852

Roundtrip

found 2 days ago

Select WestJet flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Thu, Aug 21, priced at $852 found 2 days ago

Sun, Aug 10 - Thu, Aug 21

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$861 Roundtrip, found 2 days ago

$861

Roundtrip

found 2 days ago

Select WestJet flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Thu, Aug 21, priced at $861 found 2 days ago

Sun, Aug 10 - Thu, Aug 21

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$867 Roundtrip, found 2 days ago

$867

Roundtrip

found 2 days ago

Select Air Canada flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Thu, Aug 21, priced at $867 found 2 days ago

Sun, Aug 10 - Thu, Aug 21

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$1,031 Roundtrip, found 2 days ago

$1,031

Roundtrip

found 2 days ago

Select American Airlines flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Thu, Aug 21, priced at $1,031 found 2 days ago

Sun, Aug 10 - Thu, Aug 21

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$1,142 Roundtrip, found 2 days ago

$1,142

Roundtrip

found 2 days ago

Select Delta flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Thu, Aug 21, priced at $1,142 found 2 days ago

Sun, Aug 10 - Thu, Aug 21

YUL

Pierre Elliott Trudeau Intl.

SEA

Seattle - Tacoma Intl.

$1,546 Roundtrip, found 2 days ago

$1,546

Roundtrip

found 2 days ago

Select United flight, departing Sun, Aug 10 from Pierre Elliott Trudeau Intl. to Seattle - Tacoma Intl., returning Thu, Aug 21, priced at $1,546 found 2 days ago