Flights from Seattle to Philadelphia from $ 349*
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1 Passenger, Economy
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today
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Featured daily fares for flights from Seattle (SEA) to Philadelphia (PHL)
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More United deals on Seattle (SEA) to Philadelphia (PHL) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Seattle (SEA) | Philadelphia (PHL) | Roundtrip | Economy | 12/04/26 - 12/08/26 | from $ 349 Viewed: 12 hours ago |
| Seattle (SEA) | Philadelphia (PHL) | Roundtrip | Economy | 05/24/26 - 05/28/26 | from $ 357 Viewed: 12 hours ago |
| Seattle (SEA) | Philadelphia (PHL) | Roundtrip | Economy | 08/04/26 - 08/11/26 | from $ 359 Viewed: 12 hours ago |
| Seattle (SEA) | Philadelphia (PHL) | Roundtrip | Economy | 08/12/26 - 08/19/26 | from $ 359 Viewed: 12 hours ago |
| Seattle (SEA) | Philadelphia (PHL) | Roundtrip | Economy | 06/06/26 - 06/10/26 | from $ 363 Viewed: 12 hours ago |
| Seattle (SEA) | Philadelphia (PHL) | Roundtrip | Economy | 06/09/26 - 06/16/26 | from $ 363 Viewed: 12 hours ago |
| Seattle (SEA) | Philadelphia (PHL) | Roundtrip | Economy | 07/01/26 - 07/04/26 | from $ 374 Viewed: 12 hours ago |
| Seattle (SEA) | Philadelphia (PHL) | Roundtrip | Economy | 05/27/26 - 06/03/26 | from $ 377 Viewed: 12 hours ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, 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. Schedules are subject to change without notice.
