Cheap flights from Philadelphia to Seattle

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Planning a flight from Philadelphia to Seattle?

Flight prices from Philadelphia to Seattle change depending on demand and time of booking.

Choose a date to explore the best fares now.

Many users find better fares by booking several weeks in advance. In fact, for many routes, booking early is one of the best ways to save.

Are there multiple airports in Philadelphia and Seattle?

If your departure or arrival city has more than one airport, it's worth comparing all of them for timing and pricing.

  • Airports in Philadelphia: Trenton Mercer is an alternative to Philadelphia - International.
  • Airports in Seattle: 2 airports are available in Seattle - Boeing Field, Lake Union.

If you're traveling with a group or bulky luggage, look into parking or transport options. Alternative airports may offer faster transfers or better rates.

Flights from Philadelphia - International to Seattle - Tacoma

Plan smarter: flights from Philadelphia to Seattle

Find the flight that fits your plans with Jetcost. You can filter results by stops, agencies, budget, time of day, and airline — all in one search.

Other popular destinations

Travelers flying to United States also checked out: Boston, Los Angeles, Miami, New York City, Orlando.

Comparing offers from multiple agencies helps you find the best price for the same route. You can also spot exclusive deals from individual airlines right in the results list.
Frequently Asked Questions

Frequently asked questions about flights from Philadelphia to Seattle.

How much does an airline ticket from Philadelphia to Seattle cost?

Flight prices can vary a lot depending on the period and destination. At the moment, this information is not available for flights from Philadelphia to Seattle.

How far is Philadelphia from Seattle?

Philadelphia is about 3817 km from Seattle.

What are the airports in Seattle?

Seattle has 2 airports: Boeing Field, Lake Union.

What are the airports in Philadelphia?

Philadelphia has another airport: Trenton Mercer.

What are the most popular cities in United States?

The most popular cities in United States according to our users' searches are: Boston, Los Angeles, Miami, New York City, Orlando.

When should I book a flight from Philadelphia to Seattle?

The best time to book a flight from Philadelphia to Seattle is 3 months in advance, while the worst time is 32 weeks in advance.

What is the cheapest month to fly from Philadelphia to Seattle?

This information is not available at the moment.

What is the most expensive month to fly from Philadelphia to Seattle?

This information is not available at the moment.

What is the best day of the week to fly from Philadelphia to Seattle?

This information is not available at the moment.