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Get United's best fares today on flights from Seattle to Philadelphia from *

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FromToDatesFare TypePrice

Seattle (SEA)

Philadelphia (PHL)

Depart: 06/17/20

Return: 07/01/20

Roundtrip
from
$361*
Viewed:1dayago

Seattle (SEA)

Philadelphia (PHL)

Depart: 12/27/19

Return: 12/29/19

Roundtrip
from
$969*
Viewed:3minutesago

Seattle (SEA)

Philadelphia (PHL)

Depart: 12/09/19

Return: 12/19/19

Roundtrip
from
$756*
Viewed:13minutesago

Seattle (SEA)

Philadelphia (PHL)

Depart: 12/09/19

Return: 12/21/19

Roundtrip
from
$1,096*
Viewed:18minutesago

Seattle (SEA)

Philadelphia (PHL)

Depart: 02/25/20

Return: 02/28/20

Roundtrip
from
$406*
Viewed:1hourago

Seattle (SEA)

Philadelphia (PHL)

Depart: 12/10/19

Return: 12/13/19

Roundtrip
from
$747*
Viewed:1hourago

Seattle (SEA)

Philadelphia (PHL)

Depart: 01/08/20

Return: 01/09/20

Roundtrip
from
$424*
Viewed:1dayago

Seattle (SEA)

Philadelphia (PHL)

Depart: 12/10/19

Return: 12/14/19

Roundtrip
from
$756*
Viewed:3hoursago

Seattle (SEA)

Philadelphia (PHL)

Depart: 01/07/20

Return: 03/05/20

Roundtrip
from
$314*
Viewed:1dayago

Seattle (SEA)

Philadelphia (PHL)

Depart: 12/12/19

Return: 12/15/19

Roundtrip
from
$839*
Viewed:4hoursago

*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Philadelphia

Friday overcast clouds
46°F 12/06/19
Saturday overcast clouds
36°F 12/07/19
Sunday overcast clouds
35°F 12/08/19
Monday moderate rain
48°F 12/09/19
Tuesday snow
63°F 12/10/19
Wednesday light snow
40°F 12/11/19
Thursday sky is clear
26°F 12/12/19
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