Find cheap flights from Philadelphia to Seattle – Compare and Save

The cheapest month for flights from Philadelphia to Seattle is January, where tickets cost C$ 446 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is C$ 658 and C$ 658 respectively.

No, with an average price for the route of C$ 230, prices are generally cheapest when you fly direct.

Weekly flights between Philadelphia and Seattle historically see delays in approximately 19% of cases, with the average delay over the past year being 155 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 Thursday 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 nonstop flights that take off from Philadelphia and land in Seattle, with an average flight time of 6h 04m. The most common departure time is 7:00 a.m. 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 Wednesday.