Wayfli › Philadelphia (PHL) › To Seattle (SEA)

Philadelphia (PHL) to Seattle (SEA) flights

There are direct flights from Philadelphia International Airport to Seattle Tacoma International Airport, sold by 2 airlines (including codeshares): American Airlines and Alaska Airlines. The distance is 3,818 km, about 5h 10m in the air. There are also 19 one-stop options, via airports such as Chicago, Dallas-Fort Worth and Atlanta.

Live fares for PHL → SEASee all routes on the map
3,818 kmdistance
~5h 10mdirect flight time (estimate)
2direct airlines
19one-stop options

Direct flights from Philadelphia to Seattle

RouteAirlines (incl. codeshares)DistanceTime (est.)
PHL → SEAAmerican Airlines, Alaska Airlines3,818 km~5h 10m

Best one-stop connections

Through the biggest hubs first. Times include about 100 minutes to change planes.

ViaAirlinesDistanceTime (est.)
ORD ChicagoAmerican Airlines and United Airlines then American Airlines and Alaska Airlines3,850 km~7h 20m
DFW Dallas-Fort WorthAmerican Airlines then American Airlines and Alaska Airlines4,761 km~8h 30m
ATL AtlantaAmerican Airlines and Air France then Air France and Aeromexico4,577 km~8h 15m
EWR NewarkAmerican Airlines then American Airlines and Alaska Airlines3,984 km~7h 30m
DEN DenverAmerican Airlines and United Airlines then American Airlines and Alaska Airlines4,145 km~7h 45m
YYZ TorontoAmerican Airlines and Air Canada then Air Canada3,865 km~7h 25m
CLT CharlotteAmerican Airlines then American Airlines4,382 km~8h
LAS Las VegasAmerican Airlines and Frontier Airlines then Alaska Airlines and Southwest Airlines4,890 km~8h 40m
IAD WashingtonUnited Airlines then United Airlines3,918 km~7h 25m
BOS BostonAmerican Airlines and jetBlue then American Airlines and Alaska Airlines4,456 km~8h 5m
DCA WashingtonAmerican Airlines then Alaska Airlines3,930 km~7h 30m
MDW ChicagoSouthwest Airlines then Southwest Airlines3,855 km~7h 20m

More from Philadelphia and Seattle

Routes come from current airline fares, updated weekly (last update 9 November 2026), plus older schedule data for airports with few recent fares. “Direct” can include a few same-plane flights with a stop. Flight times are estimates from distance. Always check with the airline before booking.