AED610 Cheap Flights from Philadelphia (PHL) to Seattle (SEA)

View AED610 flight on Sun, 1 February 2026Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Philadelphia to Seattle (PHL-SEA)

Prices were available within the past 7 days and start at AED610 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How long does it take to fly from Philadelphia Airport to SEA?
With Alaska Airlines, a direct flight takes approximately 5 hours and 51 minutes. Secure a seat on the 7:00AM flight from PHL and land at Sea-Tac Airport at 9:51AM. Clinch a fabulous deal on this route when you use Expedia to book your journey.
Is it cheaper to buy a plane ticket from Philadelphia Airport to Sea-Tac Airport last minute?
When it's time to book your flights, being organized pays off. While you may be able to score a last-minute deal on a Philadelphia Airport to Sea-Tac Airport flight, prices usually don't get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days ahead. For international travel it's three to four months.
What airline has the least delays from Philadelphia Airport to SEA?
If you don't want to be stuck at the departure gate for hours — or worse, your vacation plans left in tatters due to a flight delay — pick Alaska Airlines. Around 83% of its Philadelphia Intl. Airport (PHL) to SEA services are on time. You can review your flight status before you leave for the airport through the free Expedia App. It'll also give you real-time notifications about any gate changes, baggage carousel numbers and how to get to your hotel. Everything you need to know is right there in your pocket!
What airports do you fly into for Seattle from Philadelphia?
Seattle - Tacoma Intl. Airport (SEA), Renton Municipal Airport (RNT) and Boeing Field Airport (BFI) are your options when jetting from Philadelphia to Seattle. Roughly 19 kilometers south of the center of Seattle, Seattle - Tacoma Intl. Airport (SEA) is the city's main entry point. Consider things like flight schedules and the distance to your hotel before choosing your airport. Space Needle and Pike Place Market are two great attractions to check out when you reach your destination.
What are the most popular departure times for flights from Philadelphia Intl. Airport (PHL) to SEA?
For American Airlines flights heading from Philadelphia Intl. Airport (PHL) to SEA, the peak period is between 6:00 PM - 7:00 PM. If you want to avoid any holdups, fly out in the morning. This gives you a better chance to dodge air traffic that builds up in the afternoon.
Can I change the date of my flight from Philadelphia Airport to Sea-Tac Airport?
You can make changes to your PHL to Sea-Tac Airport journey through the Expedia Trips portal. But before you begin, look over the rules and restrictions in your itinerary to find out what the carrier will allow you to do and if charges apply. Some airlines charge a change fee per person, plus any difference in fare prices. However, if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also swing by our Customer Service portal to find the answers to your questions and to chat with our Virtual Agent.

Travel information

Travel information

Origin airport
Philadelphia Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
3794 km
Average flight time
4 hours 10 mins

Book with confidence

Book with confidence

Philadelphia to Seattle Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Philadelphia to Seattle offer the perfect respite. Not only does exploring Seattle provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Philadelphia to Seattle may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Seattle are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Seattle more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is AED610 now!

Philadelphia to Seattle Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia