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

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

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Find the cheapest month to fly from Seattle (SEA) to Philadelphia (PHL)

September is typically the cheapest month to fly

From RM 582 - RM 1,130 per traveller.

Graph displaying average flight prices per month

Seattle to Philadelphia route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Philadelphia Intl.
Distance
3794 km
Average flight time
9 hours 26 mins

Perfect flights from Seattle to Philadelphia

Your Journey from Seattle to Philadelphia

Start your unforgettable journey with Expedia. Our broad selection of flights from Seattle to Philadelphia caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including . Our selection of flights from Seattle - Tacoma Intl. to Philadelphia Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seattle to Philadelphia Flights

Experience the joy of finding cheap flights from Seattle - Tacoma Intl. to Philadelphia Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares and roundtrip prices *.
 

Pre-Flight Essentials

Ensure a smooth journey from Seattle to Philadelphia with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Philadelphia

Picture yourself stepping off the plane in Philadelphia and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seattle to Philadelphia Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seattle to Philadelphia.
 

Beyond the Flight – Exploring Philadelphia

With Expedia, your adventure extends beyond the flight. Explore Philadelphia at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seattle to Philadelphia with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seattle to Philadelphia with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to PHL?
The lowest price advertised for a round-trip journey between SEA and Philadelphia Airport is . But you better act fast. This price is taken from fares quoted within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Philadelphia Airport?
Most flights can be cancelled online, but each airline has different terms and conditions. If you do decide to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to PHL that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Philadelphia Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia Intl. Airport (PHL)?
You'll be soaring through the sky for a while, as the flight distance from SeaTac to Philadelphia is 3,800 kilometres. Put together a playlist of your favourite songs before leaving home to keep yourself entertained during the journey.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia Intl. Airport (PHL)?
Alaska Airlines (AS) is a top choice. It operates 30 flights from Sea-Tac Airport to Philadelphia Intl. Airport (PHL) each month. Love some more options? Check out the ticket prices from American Airlines (AA). This carrier offers 30 flights a month between these destinations.
Are Sea-Tac Airport to PHL flight tickets cheaper when they're purchased at the last minute?
Flight tickets from SEA to PHL are available up to a year prior to departure on Expedia. And although you may pick up a fantastic last-minute deal, it's never something you can count on. Also, booking your flights well in advance means you'll have more choices — and you can avoid getting caught in the dreaded middle seat! We regularly update our fares to bring you the biggest bargains, so keep checking in for all the latest specials.

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