$123 Find Cheap Flights from Seattle to Pennsylvania - Compare and Save

The cheapest ticket to Pennsylvania from Seattle found in the last 5 days was to Philadelphia, at $329 round-trip. The most popular route is from Seattle (SEA) to Philadelphia (PHL), and the cheapest round-trip airline ticket found on this route in the last 5 days was $329.

The cheapest time of day to fly to Pennsylvania is generally at night, when round-trip flights cost $454 on average. Morning departures are around 34% cheaper than evening flights, on average. The most expensive time of day to fly to Pennsylvania is generally in the evening, which is peak travel time and where the average cost of a ticket is $726.

No, with an average price for the route of $387, prices are generally cheapest when you fly direct.

The cheapest month for flights from Seattle to Pennsylvania is October, when tickets cost $341 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of round-trip tickets is $495 and $467 respectively.

When flying from Seattle to Pennsylvania, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Wednesdays and the most expensive ones on Mondays.

To get a below average price on the flight from Seattle to Pennsylvania, you should book around 4 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

There are 4 airlines that fly nonstop from Seattle to Pennsylvania. They are: American Airlines, Alaska Airlines, Delta and Hawaiian Airlines. The cheapest price of all airlines flying this route was found with Delta at $164 for a round-trip flight to Philadelphia (PHL). On average, Delta offers the best prices for nonstop flights between Seattle and Pennsylvania.

Seattle and Pennsylvania are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (40 flights per week), American Airlines (21 flights per week), and Delta (14 flights per week).

The duration of a flight to Pennsylvania depends on your arrival airport. The shortest routes to Pennsylvania from Seattle are to Pittsburgh, which takes 4h 33m, Philadelphia, which takes 5h 07m, and Erie, which takes 6h 50m.

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

The earliest flight from Seattle to Pennsylvania departs at 8:10 am, landing in Philadelphia at 4:32 pm.

If you prefer to fly at night, the latest flight from Seattle to Pennsylvania jets off at 10:35 pm and lands in Philadelphia at 6:48 am.