Flights from Seattle to Swarthmore

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.

Wed, Oct 15 - Sat, Oct 18

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$268 Roundtrip, found 1 day ago

$268

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Oct 15 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sat, Oct 18, priced at $268 found 1 day ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$277 Roundtrip, found 3 hours ago

$277

Roundtrip

found 3 hours ago

Select Alaska Airlines flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $277 found 3 hours ago

Wed, Oct 15 - Fri, Oct 17

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$288 Roundtrip, found 1 day ago

$288

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Wed, Oct 15 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Fri, Oct 17, priced at $288 found 1 day ago

Mon, Oct 13 - Thu, Oct 16

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$297 Roundtrip, found 1 day ago

$297

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Oct 13 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Thu, Oct 16, priced at $297 found 1 day ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$307 Roundtrip, found 3 hours ago

$307

Roundtrip

found 3 hours ago

Select United flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $307 found 3 hours ago

Thu, Oct 16 - Fri, Oct 17

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$317 Roundtrip, found 1 day ago

$317

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Fri, Oct 17, priced at $317 found 1 day ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$327 Roundtrip, found 3 hours ago

$327

Roundtrip

found 3 hours ago

Select United flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $327 found 3 hours ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$347 Roundtrip, found 3 hours ago

$347

Roundtrip

found 3 hours ago

Select American Airlines flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $347 found 3 hours ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$357 Roundtrip, found 3 hours ago

$357

Roundtrip

found 3 hours ago

Select United flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $357 found 3 hours ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$361 Roundtrip, found 3 hours ago

$361

Roundtrip

found 3 hours ago

Select United flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $361 found 3 hours ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$367 Roundtrip, found 3 hours ago

$367

Roundtrip

found 3 hours ago

Select American Airlines flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $367 found 3 hours ago

Sun, Oct 19 - Tue, Oct 21

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$367 Roundtrip, found 1 day ago

$367

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Sun, Oct 19 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Tue, Oct 21, priced at $367 found 1 day ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$377 Roundtrip, found 3 hours ago

$377

Roundtrip

found 3 hours ago

Select United flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $377 found 3 hours ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$387 Roundtrip, found 3 hours ago

$387

Roundtrip

found 3 hours ago

Select Alaska Airlines flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $387 found 3 hours ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$387 Roundtrip, found 3 hours ago

$387

Roundtrip

found 3 hours ago

Select American Airlines flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $387 found 3 hours ago

Fri, Aug 8 - Tue, Aug 12

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$388 Roundtrip, found 2 days ago

$388

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Tue, Aug 12, priced at $388 found 2 days ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$395 Roundtrip, found 3 hours ago

$395

Roundtrip

found 3 hours ago

Select Alaska Airlines flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $395 found 3 hours ago

Fri, Aug 8 - Mon, Aug 11

PAE

Seattle Paine Field Intl. Airport

PHL

Philadelphia Intl.

$408 Roundtrip, found 2 days ago

$408

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Seattle Paine Field Intl. Airport to Philadelphia Intl., returning Mon, Aug 11, priced at $408 found 2 days ago

Thu, Oct 16 - Sun, Oct 19

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$508 Roundtrip, found 3 hours ago

$508

Roundtrip

found 3 hours ago

Select United flight, departing Thu, Oct 16 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sun, Oct 19, priced at $508 found 3 hours ago

Wed, Aug 6 - Sat, Aug 9

SEA

Seattle - Tacoma Intl.

PHL

Philadelphia Intl.

$1,092 Roundtrip, found 2 days ago

$1,092

Roundtrip

found 2 days ago

Select JetBlue Airways flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to Philadelphia Intl., returning Sat, Aug 9, priced at $1,092 found 2 days ago