Cheap flights from Philadelphia to Seattle
From 256 USD — compare hundreds of airlines
Direct flightsCheapest: 2026-07 · 191 US$
Prices by date
191 US$
02/07
Airlines on this route
FAQ
What's the cheapest month to fly Philadelphia to Seattle?
Usually 2026-07, from 191 USD.
Are there direct flights from Philadelphia to Seattle?
We show both direct and connecting options — filter to compare.