SEA to PHL from $329 in economy – flightdeals.net

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Delta Air Lines

DLDelta Air Lines

Round Trip•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Philadelphia International Airport

Philadelphia, United States

$390 USD

-16%$329 USD

Verified about 20 hours ago

June 2026

Mon

Tue

Wed

Thu

Fri

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Sun

1 2 3$437 4$474 5$474 6$437 7$484 8$474 9$437 10$427 11$464 12$464 13$437 14$474 15$607 16$427 17$427 18$508 19$559 20$564 21$788 22$430 23$420 24$373 25$463 26$533 27$577 28$383 29$463 30$384 1$423 2$383 3$349 4$373 5$543

Great Availability

65% of dates checked are available within 10% of the lowest price

Monday, June 1st, 2026

0 round-trip options

No flight details available for this date.