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Cheap Flights from Seattle to Philadelphia $257.67

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Cheapest Flights from Seattle to Philadelphia (SEA to PHL)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Seattle to Philadelphia (SEA to PHL)

Question : Are prices changing frequently for this route?
Answer : Prices for this trip tend to fluctuate much more than others. However, the sooner you book, the better price you tend to get.

Question : Interested in traveling in the next 30 days and want to get the lowest fare?
Answer : February 13th offers bookings (as of January 16th) that are 16% below the average price for this route. Saving on flight fares means you'll have more money to spend on your trip.

Question : If your plans are flexible, have you considered changing your departure day?
Answer : Friday is your cheapest day to fly in February. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.

Question : Which airline is least likely to get you to PHL on time?
Answer : Flights on American Airlines to Philadelphia from Seattle during the last month were late 26% of the time. If you're on American Airlines, be sure to sign up for the delay notifications to stay up to date with your flight's status.