Vuelos Desde A. Internacional de Filadelfia (PHL) a Seattle - Tacoma Intl. (SEA) Empezando Desde $73

If you want to travel from Philadelphia Airport to Sea-Tac Airport as fast as you can, you’ll be glad to know multiple airlines offer direct flights. Choose your favorite seat with American Airlines or Alaska Airlines.

Feel free to hop up and walk the aisles during your flight from Philadelphia Intl. Airport (PHL) to Seattle - Tacoma Intl. Airport (SEA). You’ll be in the air for 9 hours and 9 minutes, so exercising your body will help keep you comfortable during this lengthy journey.

The flight distance from Philadelphia Intl. Airport (PHL) to Sea-Tac Airport is 2,400 mi. We suggest you pack a magazine or a crossword puzzle to make your trip more enjoyable.

You can take your pick from several airlines that fly direct between Philadelphia and Seattle. American Airlines (AA) is one of the most reliable. This carrier offers at least 52 flights each month. You may want to also browse the deals available through Alaska Airlines (AS). Another leading carrier, it operates 30 flights each month on the Philadelphia to Seattle route. Compare the two airlines to find your perfect fare.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.