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Cheap flights from Philadelphia to Seattle

Fares from $249 in November 2026. Compare every month below, then book with the site you like.

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Cheapest Philadelphia to Seattle fares by month

Lowest price per person found in recent searches. Prices change often and are checked when you book.

Philadelphia to Seattle at a glance

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Frequently asked questions

How much is a flight from Philadelphia to Seattle?
The cheapest fare we found recently is $249 per person, departing Nov 9 on Frontier. Prices change daily, so search your dates to see today's fares.
What is the cheapest month to fly from Philadelphia to Seattle?
November 2026 is currently the cheapest month, from $249.
Are there direct flights from Philadelphia to Seattle?
The cheapest fares we found recently have at least one stop. Nonstop flights may still exist at a higher price; tick "Direct only" in the search to check.
Which airlines fly from Philadelphia to Seattle?
The cheapest recent fares on this route were on Frontier.
How long is the flight from Philadelphia to Seattle?
Philadelphia and Seattle are about 2,372 miles apart, so a nonstop flight takes roughly 5h 30m. Flights with a stop take longer, depending on the connection.
How do I find the cheapest flight from Philadelphia to Seattle?
Search your dates on Gotoesy. We list fares from several booking sites sorted cheapest first, show nearby dates when your day has no saved fare, and send you straight to the seller to book.

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