Alaska
Oneworld
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United States
Seattle–Tacoma International Airport
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United States
Philadelphia International Airport
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Scan through all non-stop flights from Seattle / Tacoma to Philadelphia. The full flight schedule below gives an overview of all non-stop flights from SEA to PHL, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Philadelphia is a humid subtropical or warm-temperate destination, featuring hot, humid summers with temperatures typically around 30°C (86°F) and mild to cool winters. The region is known for consistent rainfall throughout the year, peaking in summer. The area is known for its vibrant urban energy, diverse landscapes, and numerous outdoor activities.
You can visit Philadelphia any time of the year, but the best months to explore are from to and from to .

In total there are 3 airlines operating nonstop flights from Seattle / Tacoma SEA to Philadelphia PHL. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their SEA PHL flight schedule.
Flights from SEA to PHL are operated 27 times a week, with an average of 4 flights per day. Departure times vary between 06:12 - 23:20. The earliest flight departs at 06:12, the last flight departs at 23:20. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Seattle / Tacoma to Philadelphia takes 5 hours and 21 minutes. The flight distance between Seattle / Tacoma and Philadelphia is 2,371 miles (or 3,816 km).
There is 1 airport in Philadelphia: Philadelphia International Airport (PHL).
There are 27 flights per week flying from Seattle / Tacoma to Philadelphia (as of April 2026).
5 hours and 21 minutes is the average flight time from Seattle / Tacoma to Philadelphia.
The distance from Seattle / Tacoma to Philadelphia is 2,371 miles (3,816 kilometers).
Alaska, American Airlines and Delta are flying nonstop from Seattle / Tacoma to Philadelphia.
Oneworld and SkyTeam are flying nonstop from Seattle / Tacoma to Philadelphia.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Seattle / Tacoma to Philadelphia:
The earliest flight departs at 06:12 from Seattle / Tacoma and arrives at 14:17 at Philadelphia.
The latest flight departs at 23:20 from Seattle / Tacoma and arrives at 07:18 at Philadelphia.
2,371 miles (3,816 km) · 5h 21m
09:32
17:58
Alaska
Oneworld
AS 442
Alaska
Boeing 737 MAX 9
Y
W
J
F
09:32
17:58
Alaska
Oneworld
AS 442
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
09:32
17:58
Alaska
Oneworld
AS 442
Alaska
Boeing 737 MAX 9
Y
W
J
F
09:37
17:47
Alaska
Oneworld
AS 442
Alaska
Boeing 737 MAX 9
Y
W
J
F
09:37
17:47
Alaska
Oneworld
AS 442
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
09:37
17:47
Alaska
Oneworld
AS 442
Alaska
Boeing 737 MAX 9
Y
W
J
F
09:37
17:47
Alaska
Oneworld
AS 442
Alaska
Boeing 737 MAX 9
Y
W
J
F
12:34
20:55
American Airlines
Oneworld
AA 872
American Airlines
Boeing 737 MAX 8
Y
W
J
F
12:34
20:55
American Airlines
Oneworld
AA 872
American Airlines
Boeing 737 MAX 8
Y
W
J
F
21:44
06:02
Alaska
Oneworld
AS 371
Alaska
Boeing 737 MAX 9
Y
W
J
F
21:44
06:02
Alaska
Oneworld
AS 371
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
21:44
06:02
Alaska
Oneworld
AS 371
Alaska
Boeing 737 MAX 9
Y
W
J
F
21:44
06:02
Alaska
Oneworld
AS 371
Alaska
Boeing 737 MAX 9
Y
W
J
F
21:55
06:05
Alaska
Oneworld
AS 371
Alaska
Boeing 737 MAX 9
Y
W
J
F
21:55
06:05
Alaska
Oneworld
AS 371
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
21:55
06:05
Alaska
Oneworld
AS 371
Alaska
Boeing 737-800 (winglets)
Y
W
J
F
21:55
06:05
Alaska
Oneworld
AS 371
Alaska
Boeing 737-900 (winglets)
Y
W
J
F
22:47
07:00
American Airlines
Oneworld
AA 2763
American Airlines
Airbus A321-100/200
Y
W
J
F
22:57
07:02
American Airlines
Oneworld
AA 2361
American Airlines
Airbus A321neo
Y
W
J
F
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