Nonstop flights from Philadelphia to Seattle

3 airlines fly this route, with up to 6 flights a day.

PHLPhiladelphia International

2,372 mi · 40 flights a week

SEASeattle-Tacoma International

PHLSEA

When they leave

Philadelphia time

7:05a7:35pFirst departure 7:05 AM, last 7:35 PM

Three in the morning, 7:05 AM to 8:44 AM, then one afternoon flight at 4:26 PM, then two in the evening, 5:45 PM to 7:35 PM.

Every flight

Earliest first

7:05 AM→10:01 AMDelta Air LinesUntil Nov 30, back May 6, 2027Airbus A321neoDaily
7:33 AM→10:32 AMAlaska AirlinesBoeing 737Daily
8:44 AM→11:50 AMAmerican AirlinesAirbus A321Daily
4:26 PM→7:30 PMAlaska AirlinesBoeing 737 MAX 9Daily
5:45 PM→8:58 PMAmerican AirlinesAirbus A321Mon, Thu, Fri, Sat, Sun
7:35 PM→10:56 PMAmerican AirlinesAirbus A321Daily

Schedules last checked Sep 23, 2026. Times are local.

Flying from Philadelphia to Seattle

American Airlines flies most often, 2 to 3 times a day on the Airbus A321. Alaska Airlines flies twice a day on the Boeing 737 and Boeing 737 MAX 9. Delta Air Lines flies daily on the Airbus A321neo.

There are 5 or 6 flights every day of the week. The first arrival in Seattle is at 10:01 AM and the last at 10:56 PM. The flight covers 2,372 miles.

Delta Air Lines flies it until Nov 30 and is back on May 6, 2027.

Flying back, Seattle to Philadelphia has 40 nonstop flights a week.