Flights from Seattle to St. Lawrence Seaway

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.

Sat, Oct 4 - Mon, Oct 6

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$314 Roundtrip, just found

$314

Roundtrip

just found

Select American Airlines flight, departing Sat, Oct 4 from Seattle - Tacoma Intl. to Hancock Intl., returning Mon, Oct 6, priced at $314 just found

Wed, Oct 1 - Mon, Oct 13

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$327 Roundtrip, just found

$327

Roundtrip

just found

Select JetBlue Airways flight, departing Wed, Oct 1 from Seattle - Tacoma Intl. to Hancock Intl., returning Mon, Oct 13, priced at $327 just found

Wed, Oct 1 - Tue, Oct 7

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$337 Roundtrip, just found

$337

Roundtrip

just found

Select JetBlue Airways flight, departing Wed, Oct 1 from Seattle - Tacoma Intl. to Hancock Intl., returning Tue, Oct 7, priced at $337 just found

Sat, Oct 4 - Mon, Oct 6

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$339 Roundtrip, just found

$339

Roundtrip

just found

Select American Airlines flight, departing Sat, Oct 4 from Seattle - Tacoma Intl. to Hancock Intl., returning Mon, Oct 6, priced at $339 just found

Wed, Oct 1 - Wed, Oct 8

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$340 Roundtrip, just found

$340

Roundtrip

just found

Select JetBlue Airways flight, departing Wed, Oct 1 from Seattle - Tacoma Intl. to Hancock Intl., returning Wed, Oct 8, priced at $340 just found

Mon, Oct 6 - Mon, Oct 13

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$347 Roundtrip, just found

$347

Roundtrip

just found

Select JetBlue Airways flight, departing Mon, Oct 6 from Seattle - Tacoma Intl. to Hancock Intl., returning Mon, Oct 13, priced at $347 just found

Wed, Oct 1 - Sat, Oct 11

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$350 Roundtrip, just found

$350

Roundtrip

just found

Select JetBlue Airways flight, departing Wed, Oct 1 from Seattle - Tacoma Intl. to Hancock Intl., returning Sat, Oct 11, priced at $350 just found

Wed, Oct 1 - Sun, Oct 12

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$356 Roundtrip, just found

$356

Roundtrip

just found

Select JetBlue Airways flight, departing Wed, Oct 1 from Seattle - Tacoma Intl. to Hancock Intl., returning Sun, Oct 12, priced at $356 just found

Sun, Oct 5 - Mon, Oct 13

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$357 Roundtrip, just found

$357

Roundtrip

just found

Select JetBlue Airways flight, departing Sun, Oct 5 from Seattle - Tacoma Intl. to Hancock Intl., returning Mon, Oct 13, priced at $357 just found

Wed, Oct 1 - Mon, Oct 6

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$358 Roundtrip, just found

$358

Roundtrip

just found

Select JetBlue Airways flight, departing Wed, Oct 1 from Seattle - Tacoma Intl. to Hancock Intl., returning Mon, Oct 6, priced at $358 just found

Wed, Oct 1 - Thu, Oct 9

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$360 Roundtrip, just found

$360

Roundtrip

just found

Select JetBlue Airways flight, departing Wed, Oct 1 from Seattle - Tacoma Intl. to Hancock Intl., returning Thu, Oct 9, priced at $360 just found

Mon, Oct 6 - Wed, Oct 8

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$367 Roundtrip, just found

$367

Roundtrip

just found

Select JetBlue Airways flight, departing Mon, Oct 6 from Seattle - Tacoma Intl. to Hancock Intl., returning Wed, Oct 8, priced at $367 just found

Mon, Oct 6 - Sat, Oct 11

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$370 Roundtrip, just found

$370

Roundtrip

just found

Select JetBlue Airways flight, departing Mon, Oct 6 from Seattle - Tacoma Intl. to Hancock Intl., returning Sat, Oct 11, priced at $370 just found

Sat, Oct 4 - Wed, Oct 8

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$373 Roundtrip, just found

$373

Roundtrip

just found

Select JetBlue Airways flight, departing Sat, Oct 4 from Seattle - Tacoma Intl. to Hancock Intl., returning Wed, Oct 8, priced at $373 just found

Sat, Oct 4 - Sat, Oct 11

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$374 Roundtrip, just found

$374

Roundtrip

just found

Select Delta flight, departing Sat, Oct 4 from Seattle - Tacoma Intl. to Hancock Intl., returning Sat, Oct 11, priced at $374 just found

Mon, Oct 6 - Sun, Oct 12

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$376 Roundtrip, just found

$376

Roundtrip

just found

Select JetBlue Airways flight, departing Mon, Oct 6 from Seattle - Tacoma Intl. to Hancock Intl., returning Sun, Oct 12, priced at $376 just found

Wed, Oct 1 - Sun, Oct 5

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$378 Roundtrip, just found

$378

Roundtrip

just found

Select JetBlue Airways flight, departing Wed, Oct 1 from Seattle - Tacoma Intl. to Hancock Intl., returning Sun, Oct 5, priced at $378 just found

Mon, Oct 6 - Thu, Oct 9

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$380 Roundtrip, just found

$380

Roundtrip

just found

Select JetBlue Airways flight, departing Mon, Oct 6 from Seattle - Tacoma Intl. to Hancock Intl., returning Thu, Oct 9, priced at $380 just found

Sat, Oct 4 - Mon, Oct 6

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$405 Roundtrip, just found

$405

Roundtrip

just found

Select United flight, departing Sat, Oct 4 from Seattle - Tacoma Intl. to Hancock Intl., returning Mon, Oct 6, priced at $405 just found

Sat, Oct 4 - Mon, Oct 6

SEA

Seattle - Tacoma Intl.

SYR

Hancock Intl.

$552 Roundtrip, just found

$552

Roundtrip

just found

Select Alaska Airlines flight, departing Sat, Oct 4 from Seattle - Tacoma Intl. to Hancock Intl., returning Mon, Oct 6, priced at $552 just found