Find Cheap Flights from Philadelphia to Seattle

The cheapest month for flights from Philadelphia to Seattle is January, where tickets cost £238 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £361 and £349 respectively.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £181 on average.

Weekly flights between Philadelphia and Seattle historically see delays in approximately 20% of cases, with the average delay over the past year being 148 minutes.

Typically, flights leaving in the morning tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

Statistically, Tuesday is the day of the week with the fewest delays on this flight route, while Friday has typically experienced more delays than other days.

Based on our data, American Airlines have experienced the fewest delays on this route in the past 12 months, with only about 15% of their flights encountering any delays.

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are between 5 and 6 direct flights that take off from Philadelphia and land in Seattle, with an average flight time of 6h 07m. The most common departure time is 07:00 and most flights take off in the morning. Each week, there are 41 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.