Flights from Boston to Kirkland

Cheapest flights from Boston

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, Jul 22 - Tue, Jul 29

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$197 Roundtrip, found 4 days ago

$197

Roundtrip

found 4 days ago

Select JetBlue Airways flight, departing Tue, Jul 22 from Logan Intl. to Seattle - Tacoma Intl., returning Tue, Jul 29, priced at $197 found 4 days ago

Sat, Sep 27 - Sat, Sep 27

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$211 Roundtrip, found 6 days ago

$211

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Sat, Sep 27 from Logan Intl. to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $211 found 6 days ago

Tue, Sep 23 - Sat, Sep 27

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$217 Roundtrip, found 6 days ago

$217

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Tue, Sep 23 from Logan Intl. to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $217 found 6 days ago

Mon, Sep 22 - Sat, Sep 27

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$227 Roundtrip, found 6 days ago

$227

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Mon, Sep 22 from Logan Intl. to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $227 found 6 days ago

Wed, Aug 20 - Sat, Sep 6

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$232 Roundtrip, just found

$232

Roundtrip

just found

Select Hawaiian Airlines flight, departing Wed, Aug 20 from Logan Intl. to Seattle - Tacoma Intl., returning Sat, Sep 6, priced at $232 just found

Tue, Aug 19 - Tue, Sep 9

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$232 Roundtrip, just found

$232

Roundtrip

just found

Select Delta flight, departing Tue, Aug 19 from Logan Intl. to Seattle - Tacoma Intl., returning Tue, Sep 9, priced at $232 just found

Mon, Sep 22 - Mon, Sep 29

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$237 Roundtrip, found 6 days ago

$237

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Mon, Sep 22 from Logan Intl. to Seattle - Tacoma Intl., returning Mon, Sep 29, priced at $237 found 6 days ago

Tue, Aug 19 - Sat, Sep 6

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$242 Roundtrip, just found

$242

Roundtrip

just found

Select Alaska Airlines flight, departing Tue, Aug 19 from Logan Intl. to Seattle - Tacoma Intl., returning Sat, Sep 6, priced at $242 just found

Tue, Aug 26 - Mon, Sep 15

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$242 Roundtrip, just found

$242

Roundtrip

just found

Select Hawaiian Airlines flight, departing Tue, Aug 26 from Logan Intl. to Seattle - Tacoma Intl., returning Mon, Sep 15, priced at $242 just found

Thu, Aug 28 - Sat, Sep 13

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$247 Roundtrip, just found

$247

Roundtrip

just found

Select Hawaiian Airlines flight, departing Thu, Aug 28 from Logan Intl. to Seattle - Tacoma Intl., returning Sat, Sep 13, priced at $247 just found

Fri, Sep 26 - Fri, Sep 26

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$252 Roundtrip, found 6 days ago

$252

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Fri, Sep 26 from Logan Intl. to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $252 found 6 days ago

Tue, Aug 26 - Fri, Sep 12

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$252 Roundtrip, just found

$252

Roundtrip

just found

Select Hawaiian Airlines flight, departing Tue, Aug 26 from Logan Intl. to Seattle - Tacoma Intl., returning Fri, Sep 12, priced at $252 just found

Sat, Aug 30 - Sat, Sep 13

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$257 Roundtrip, just found

$257

Roundtrip

just found

Select Hawaiian Airlines flight, departing Sat, Aug 30 from Logan Intl. to Seattle - Tacoma Intl., returning Sat, Sep 13, priced at $257 just found

Thu, Aug 28 - Mon, Sep 15

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$257 Roundtrip, just found

$257

Roundtrip

just found

Select Hawaiian Airlines flight, departing Thu, Aug 28 from Logan Intl. to Seattle - Tacoma Intl., returning Mon, Sep 15, priced at $257 just found

Tue, Aug 19 - Fri, Sep 5

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$262 Roundtrip, just found

$262

Roundtrip

just found

Select Alaska Airlines flight, departing Tue, Aug 19 from Logan Intl. to Seattle - Tacoma Intl., returning Fri, Sep 5, priced at $262 just found

Mon, Sep 1 - Sat, Sep 13

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$262 Roundtrip, just found

$262

Roundtrip

just found

Select Hawaiian Airlines flight, departing Mon, Sep 1 from Logan Intl. to Seattle - Tacoma Intl., returning Sat, Sep 13, priced at $262 just found

Tue, Aug 12 - Thu, Sep 4

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$267 Roundtrip, just found

$267

Roundtrip

just found

Select Alaska Airlines flight, departing Tue, Aug 12 from Logan Intl. to Seattle - Tacoma Intl., returning Thu, Sep 4, priced at $267 just found

Thu, Aug 21 - Sat, Aug 30

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$268 Roundtrip, found 6 days ago

$268

Roundtrip

found 6 days ago

Select American Airlines flight, departing Thu, Aug 21 from Logan Intl. to Seattle - Tacoma Intl., returning Sat, Aug 30, priced at $268 found 6 days ago

Fri, Aug 22 - Wed, Aug 27

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$309 Roundtrip, found 1 day ago

$309

Roundtrip

found 1 day ago

Select United flight, departing Fri, Aug 22 from Logan Intl. to Seattle - Tacoma Intl., returning Wed, Aug 27, priced at $309 found 1 day ago

Mon, Jul 28 - Mon, Aug 4

BOS

Logan Intl.

SEA

Seattle - Tacoma Intl.

$408 Roundtrip, found 16 hours ago

$408

Roundtrip

found 16 hours ago

Select Sun Country Airlines flight, departing Mon, Jul 28 from Logan Intl. to Seattle - Tacoma Intl., returning Mon, Aug 4, priced at $408 found 16 hours ago