Featured airlines
- Plan, book, fly with confidence
- Be in the knowGet alerts if flight prices drop or rise*
- Book smarterSave up to 15% on select hotels after you book a flight*
Cheap flights from Seattle to Philadelphia (SEA-PHL)
Prices were available within the past 7 days and start at €155 for one-way flights and €286 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
![American Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif)
Tue, 18 Mar - Tue, 25 Mar
SEA
Seattle
PHL
Philadelphia
€286 Return, found 6 days ago
€286
Return
found 6 days ago
![Delta](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)
Sat, 1 Mar - Mon, 10 Mar
SEA
Seattle
PHL
Philadelphia
€300 Return, found 2 days ago
€300
Return
found 2 days ago
![Delta](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)
Tue, 18 Mar - Tue, 25 Mar
SEA
Seattle
PHL
Philadelphia
€304 Return, found 6 days ago
€304
Return
found 6 days ago
![Delta](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)
Sat, 1 Mar - Mon, 10 Mar
SEA
Seattle
PHL
Philadelphia
€309 Return, found 2 days ago
€309
Return
found 2 days ago
![American Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif)
Sat, 1 Mar - Mon, 10 Mar
SEA
Seattle
PHL
Philadelphia
€319 Return, found 2 days ago
€319
Return
found 2 days ago
![Delta](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)
Tue, 18 Mar - Tue, 25 Mar
SEA
Seattle
PHL
Philadelphia
€324 Return, found 6 days ago
€324
Return
found 6 days ago
![Delta](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif)
Tue, 18 Mar - Tue, 25 Mar
SEA
Seattle
PHL
Philadelphia
€327 Return, found 6 days ago
€327
Return
found 6 days ago
![JetBlue Airways](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif)
Tue, 18 Mar - Tue, 25 Mar
SEA
Seattle
PHL
Philadelphia
€339 Return, found 6 days ago
€339
Return
found 6 days ago
![United](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif)
Sat, 1 Mar - Mon, 10 Mar
SEA
Seattle
PHL
Philadelphia
€358 Return, found 2 days ago
€358
Return
found 2 days ago
![Hawaiian Airlines](http://images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/HA.gif)
Sat, 1 Mar - Mon, 10 Mar
SEA
Seattle
PHL
Philadelphia
€407 Return, found 2 days ago
€407
Return
found 2 days ago
Origin airport | Seattle - Tacoma Intl. |
Destination airport | Philadelphia Intl. |
Airlines serving | American Airlines, Delta, Hawaiian Airlines, JetBlue Airways, United |
Return price | €285 |
Distance | 3794 km |
Perfect flights from Seattle to Philadelphia
Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to Philadelphia. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
Picture yourself strolling through the streets of Philadelphia, surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
Our flexible Seattle - Tacoma Intl. to Philadelphia Intl. ticket options cater to your travel preferences, with incredible one-way fares from €155 and roundtrip prices from €286. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Philadelphia Intl. and explore Philadelphia and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your SEA to PHL travel arrangements today and embark on the journey of a lifetime in Philadelphia.
Frequently asked questions
- Trending Routes
- Trending Flights
- Top Flights Destinations
- More Airlines
- Cheap Flights from Other Airports
- Expedia's Latest Trends
Top Routes from Seattle
- Seattle to Los Angeles (SEA - LAX)
- Seattle to Amsterdam (SEA - AMS)
- Seattle to Istanbul (SEA - IST)
- Seattle to Salt Lake City (SEA - SLC)
- Seattle to Reykjavik (SEA - KEF)
- Seattle to New York (SEA - JFK)
- Seattle to Dublin (SEA - DUB)
- Seattle to Tokyo (SEA - NRT)
- Seattle to Rome (SEA - FCO)
- Seattle to London (SEA - LHR)
- Seattle to Toronto (SEA - YYZ)
- Seattle to San Francisco (SEA - SFO)
Top Routes from Seattle
Top Flight Destinations
- Flights to Las Vegas
- Flights to New York
- Flights to Orlando
- Flights to Miami
- Flights to Key West
- Flights to Gatlinburg
- Flights to San Diego
- Flights to Fort Lauderdale
- Flights to Chicago
- Flights to Honolulu
- Flights to Los Angeles
- Flights to Nashville
- Flights to New Orleans
- Flights to Panama City Beach
- Flights to Kissimmee
- Flights to Destin
- Flights to Myrtle Beach
- Flights to Boston
- Flights to Atlanta
- Flights to Phoenix
Expedia's Latest Trends
Flights
Flights from Las Vegas (LAS) to Los Angeles (LAX)Flights from San Francisco (SFO) to Las Vegas (LAS)Flights from Los Angeles (LAX) to Las Vegas (LAS)Flights from Boston (BOS) to Dublin (DUB)Flights from Los Angeles Intl. to NYC-All AirportsFlights from Dublin (DUB) to San Diego (SAN)Flights from Dublin (DUB) to Pittsburgh (PIT)Flights from Las Vegas (LAS) to Dublin (DUB)Flights from Shannon (SNN) to Boston (BOS)Flights from Dublin (DUB) to Cleveland (CLE)Flights from Dublin (DUB) to St. Louis (STL)Flights from Shannon (SNN) to Dallas (DFW)Flights from New York (JFK) to Boston (BOS)Flights from LON-All Airports to NYC-All AirportsFlights from Pearson Intl. to NYC-All AirportsFlights from Cork (ORK) to San Diego (SAN)Flights from Shannon (SNN) to Las Vegas (LAS)Flights from Cork (ORK) to Las Vegas (LAS)Flights from Dublin (DUB) to Fort Lauderdale (FLL)Flights from Dublin (DUB) to Philadelphia (PHL)Flights from Dublin (DUB) to Florence (CVG)Flights from San Diego (SAN) to Dublin (DUB)Flights from Shannon (SNN) to Seattle (SEA)Flights from Boston (BOS) to New York (JFK)Flights from Philadelphia (PHL) to Dublin (DUB)Flights from London (LHR) to Las Vegas (LAS)Flights from Dublin (DUB) to Boston (BOS)Flights from Dublin (DUB) to Seattle (SEA)Flights from Dublin (DUB) to Dallas (DFW)Flights from Dublin (DUB) to Las Vegas (LAS)
*Available to Expedia members.