Flights from Seattle to Boston

Cheapest flights from Seattle

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, Jun 17 - Wed, Jun 25

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$292 Roundtrip, found 14 hours ago

$292

Roundtrip

found 14 hours ago

Select JetBlue Airways flight, departing Tue, Jun 17 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Jun 25, priced at $292 found 14 hours ago

Wed, Aug 6 - Wed, Aug 27

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$297 Roundtrip, found 3 days ago

$297

Roundtrip

found 3 days ago

Select American Airlines flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Aug 27, priced at $297 found 3 days ago

Wed, Aug 6 - Wed, Aug 27

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$304 Roundtrip, found 3 days ago

$304

Roundtrip

found 3 days ago

Select United flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Aug 27, priced at $304 found 3 days ago

Wed, Aug 6 - Wed, Aug 27

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$306 Roundtrip, found 3 days ago

$306

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Aug 27, priced at $306 found 3 days ago

Tue, Aug 26 - Sat, Sep 6

SEA

Seattle - Tacoma Intl.

PVD

T.F. Green

$307 Roundtrip, found 2 days ago

$307

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Aug 26 from Seattle - Tacoma Intl. to T.F. Green, returning Sat, Sep 6, priced at $307 found 2 days ago

Tue, Jul 29 - Tue, Aug 19

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$307 Roundtrip, found 3 days ago

$307

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Tue, Jul 29 from Seattle - Tacoma Intl. to Logan Intl., returning Tue, Aug 19, priced at $307 found 3 days ago

Wed, Aug 6 - Wed, Aug 27

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$317 Roundtrip, found 3 days ago

$317

Roundtrip

found 3 days ago

Select United flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Aug 27, priced at $317 found 3 days ago

Thu, Jul 31 - Thu, Aug 21

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$317 Roundtrip, found 3 days ago

$317

Roundtrip

found 3 days ago

Select United flight, departing Thu, Jul 31 from Seattle - Tacoma Intl. to Logan Intl., returning Thu, Aug 21, priced at $317 found 3 days ago

Wed, Aug 6 - Wed, Aug 27

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$319 Roundtrip, found 3 days ago

$319

Roundtrip

found 3 days ago

Select United flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Aug 27, priced at $319 found 3 days ago

Wed, Aug 6 - Wed, Aug 27

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$321 Roundtrip, found 3 days ago

$321

Roundtrip

found 3 days ago

Select United flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Aug 27, priced at $321 found 3 days ago

Tue, Aug 26 - Thu, Sep 4

SEA

Seattle - Tacoma Intl.

PVD

T.F. Green

$322 Roundtrip, found 2 days ago

$322

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Aug 26 from Seattle - Tacoma Intl. to T.F. Green, returning Thu, Sep 4, priced at $322 found 2 days ago

Mon, Aug 25 - Sat, Sep 6

SEA

Seattle - Tacoma Intl.

PVD

T.F. Green

$325 Roundtrip, found 2 days ago

$325

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Aug 25 from Seattle - Tacoma Intl. to T.F. Green, returning Sat, Sep 6, priced at $325 found 2 days ago

Wed, Aug 6 - Wed, Aug 27

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$327 Roundtrip, found 3 days ago

$327

Roundtrip

found 3 days ago

Select American Airlines flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Aug 27, priced at $327 found 3 days ago

Tue, Aug 26 - Fri, Sep 5

SEA

Seattle - Tacoma Intl.

PVD

T.F. Green

$332 Roundtrip, found 2 days ago

$332

Roundtrip

found 2 days ago

Select Delta flight, departing Tue, Aug 26 from Seattle - Tacoma Intl. to T.F. Green, returning Fri, Sep 5, priced at $332 found 2 days ago

Sun, Jun 15 - Wed, Jun 25

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$332 Roundtrip, found 14 hours ago

$332

Roundtrip

found 14 hours ago

Select JetBlue Airways flight, departing Sun, Jun 15 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Jun 25, priced at $332 found 14 hours ago

Wed, Aug 6 - Wed, Aug 27

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$334 Roundtrip, found 3 days ago

$334

Roundtrip

found 3 days ago

Select United flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Aug 27, priced at $334 found 3 days ago

Wed, Aug 6 - Wed, Aug 27

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$337 Roundtrip, found 3 days ago

$337

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Logan Intl., returning Wed, Aug 27, priced at $337 found 3 days ago

Thu, Jul 31 - Thu, Aug 21

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$338 Roundtrip, found 3 days ago

$338

Roundtrip

found 3 days ago

Select Delta flight, departing Thu, Jul 31 from Seattle - Tacoma Intl. to Logan Intl., returning Thu, Aug 21, priced at $338 found 3 days ago

Thu, Jul 31 - Thu, Aug 21

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$407 Roundtrip, found 3 days ago

$407

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Thu, Jul 31 from Seattle - Tacoma Intl. to Logan Intl., returning Thu, Aug 21, priced at $407 found 3 days ago

Thu, Jul 31 - Thu, Aug 21

SEA

Seattle - Tacoma Intl.

BOS

Logan Intl.

$533 Roundtrip, found 3 days ago

$533

Roundtrip

found 3 days ago

Select Sun Country Airlines flight, departing Thu, Jul 31 from Seattle - Tacoma Intl. to Logan Intl., returning Thu, Aug 21, priced at $533 found 3 days ago