Seattle / Tacoma (SEA) to Philadelphia (PHL) flight deal in economy from $165

DLDelta Air Lines

One Way•Economy

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

PHL

Philadelphia International Airport

Philadelphia, United States

$201 USD

-18%$165 USD

Verified 13 days ago

October 2026

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28$16529$16530$1651$1652$1653$1654$1655$1656$1657$1658$1659$16510$16511$16512$16513$16514$16515$16516$16517$16518$16519$16520$16521$16522$16523$16524$16525$16526$16527$16528$16529$16530$16531$1651

Great Availability

78% of dates checked are available within 10% of the lowest price

Friday, October 2nd, 2026

Outbound Flights

5h 20m·Nonstop

$165 USD

SEAOct 2 21:30

→

PHLOct 3 05:50

DL 1114Airbus A321neo

7h 29m·1 stop

$175 USD

SEAOct 2 07:15

→

SLCOct 2 10:28

DL 2858Airbus A321neo

52m layover

SLCOct 2 11:20

→

PHLOct 2 17:44

DL 2022Boeing 737

6h 42m·1 stop

$249 USD

SEAOct 2 23:05

→

DTWOct 3 06:28

DL 810Airbus A321neo

42m layover

DTWOct 3 07:10

→

PHLOct 3 08:47

DL 2968Boeing 717

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