$60 Cheap flights from Seattle - Tacoma Intl. to Philadelphia Intl. (SEA to PHL)

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Change your flight without a fee on select flights

Find The Best Dates To Fly from Seattle - Tacoma Intl. to Philadelphia Intl.

Amazing SEA to PHL Flight Deals

The cheapest flights to Philadelphia Intl. found within the past 7 days were $189 round trip and $60 one way. Prices and availability subject to change. Additional terms may apply.

Best Philadelphia Intl. Flight and Hotel Packages

Philadelphia Intl. flight + hotel packages - economy flights

The Rittenhouse Philadelphia
Wyndham Philadelphia Historic District
Canopy by Hilton Philadelphia Center City
Cambria Hotel Philadelphia Downtown Center City
Kimpton Hotel Monaco Philadelphia, an IHG Hotel
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Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Can I catch a flight from SEA to PHL right now?
For any current Philadelphia Intl. Airport (PHL) quarantine requirements and travel advice, go to the Covid-19 Travel Advisor. Check before you book your flight, so you don’t get caught up en route.
Are there direct flights from SEA to Philadelphia Airport?
Your next incredible adventure is on the other side of a single flight. You can fly direct from Seattle - Tacoma Intl. Airport (SEA) to PHL with multiple airlines, including American Airlines and Alaska Airlines.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to PHL, please visit our Customer Service Portal.
How long is the flight from SEA to Philadelphia Intl. Airport (PHL)?
Flights between Seattle and Philadelphia take roughly 8 hours and 58 minutes all up. Make the most of your time in the air by napping, reading, checking out the in-flight entertainment or doing all three.
What is the flight distance from Sea-Tac Airport to Philadelphia Airport?
Between Sea-Tac Airport and Philadelphia Airport, the flight distance is roughly 2,400 mi. So, order a glass of Champagne and kick back. You have some important decisions to make — watch the latest film, read your novel or catch up on your beauty sleep?
What airlines fly from SEA to Philadelphia Airport?
There are a few airlines that advertise direct flights from Seattle - Tacoma Intl. Airport (SEA) to Philadelphia Airport. American Airlines (AA) is reputable, and operates approximately 52 flights each month. You may want to also look up the deals available through Alaska Airlines (AS). Another leading airline, it operates 30 flights each month on the Seattle to Philadelphia route. Be sure to compare the two airlines to score the best fare.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with American Airlines, Delta or Frontier Airlines you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
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.
What are the cheapest days to fly?
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.
How far in advance can you book a flight?
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.

 

Traveling From
Seattle - Tacoma Intl.
Traveling To
Philadelphia Intl.
Shortest Flight Time
11 hours 6 mins
Earliest Departure Time
9:39AM EDT
Latest Departure Time
10:58PM EDT
Lowest Flight Price
$189

Route Info

Flight path for flights from Seattle-Tacoma International Airport to Philadelphia International Airport


Distance:
2,385.00 miles


Airlines & Aircraft Used on SEA to PHL Flight Routes


Airline Carrier
Aircraft
Alaska Airlines
Airbus A319
Alaska Airlines
Airbus A319
American Airlines
De Havilland Canada DHC-8-100 Dash 8 / 8Q
Jet Airways (India)
Airbus A320-100/200

Discover our best flights from Seattle SEA to Philadelphia PHL. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Seattle SEA to Philadelphia PHL at the right price  

Airfares to Philadelphia PHL from Seattle SEA currently cost between $189 and $217. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Seattle SEA to Philadelphia PHL 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Seattle SEA to Philadelphia PHL on Travelocity starting at $60. Prices and availability subject to change. Additional terms may apply. 

 

Get to Philadelphia PHL from Seattle SEA quicker with direct flights. 

Get to Philadelphia faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to PHL from SEA to take around 11 hour(s) 6 min(s).  

 

Find our cheapest airfares for flights from Seattle SEA to Philadelphia PHL

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to PHL from SEA. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Seattle SEA to Philadelphia PHL today 

If you’re flexible about when you travel, May is usually the cheapest month to fly from Seattle SEA to Philadelphia PHL. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to Philadelphia PHL from Seattle SEA 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to PHL from SEA have this option.  

 

Travel with confidence when you book flights to Philadelphia PHL from Seattle SEA with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.