
Popular airlines from Seattle-Tacoma International Airport (SEA) to Philadelphia Intl. Airport (PHL)
- Alaska Airlines
Alaska Airlines
- American Airlines
American Airlines
- United
United
- Delta
Delta
- Southwest Airlines
Southwest Airlines
- Sun Country Airlines
Sun Country Airlines
- Frontier Airlines
Frontier Airlines
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Cheap Flights from Seattle to Philadelphia (SEA-PHL)
Prices were available within the past 7 days and start at S$172 for one-way flights and S$362 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Seattle (SEA) to Philadelphia (PHL)
March is typically the cheapest month to fly
Origin airport | Seattle - Tacoma Intl. |
|---|---|
Destination airport | Philadelphia Intl. |
Airlines serving | American Airlines, Delta, United |
Return price | S$361 |
Distance | 3794 km |
Average flight time | 8 hours 4 mins |
Flights from Seattle to Philadelphia
There are several airlines that operate frequent flights from Seattle (SEA) to Philadelphia (PHL) including
- Alaska Airlines with 210 flights a week
- American Airlines with 188 flights a week
- Delta Air Lines with 157 flights a week
- with 69 flights a week
- United Airlines with 58 flights a week
The earliest flight leaves Seattle Tacoma Intl. Airport at 00:50 and arrives at Philadelphia Intl. Airport at 06:32. The last flight of the day departs Seattle at 22:55 and arrives at Philadelphia at 20:11.
The flight distance from Seattle to Philadelphia is about 3837 km, the shortest flight is 05 hours with .
Expedia lets you search across the largest number of airlines and Philadelphia flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Seattle Philadelphia flight!
Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle to Philadelphia trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.
Combine your Philadelphia flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Seattle to Philadelphia with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!
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