United Airlines flights from Seattle-Tacoma (SEA) to Philadelphia (PHL).

Select flight date:
FLIGHT SCHEDULE
Non-Direct Flights:
Daily 19:10 Seattle-Tacoma (SEA) 05:16 Philadelphia (PHL) D
United Airlines UA 1218 1-stop Airbus A320 (320) 7:06 Effective 2026-05-21 through 2026-10-24
The flight arrives 1 day after departure.
Mon,Wed-Sun 09:19 Seattle-Tacoma (SEA) 21:33 Philadelphia (PHL) D
United Airlines UA 1238 1-stop Airbus A320 (320) 9:14 Effective 2026-02-12 through 2026-03-04
Daily 05:00 Seattle-Tacoma (SEA) 16:56 Philadelphia (PHL) D
United Airlines UA 2748 1-stop Boeing 737-900 (739) 8:56 Effective 2026-05-21 through 2026-08-17


United Airlines flights from Seattle-Tacoma (SEA) to Philadelphia (PHL).
Select flight date:
FLIGHT SCHEDULE
Non-Direct Flights:

Effective 2026-05-21 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:06, 1-stop
Airbus A320 (320)
The flight arrives 1 day after departure.

Non-Direct Flights:

Effective 2026-02-12 through 2026-03-04
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 9:14, 1-stop
Airbus A320 (320)

Non-Direct Flights:

Effective 2026-05-21 through 2026-08-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:56, 1-stop
Boeing 737-900 (739)
  • A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Philadelphia airport (PHL).
  • The flight distance is 2371 miles, or 3815 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.