$59 Cheap flights from Philadelphia Intl. to Seattle - Tacoma Intl. (PHL to SEA)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

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

Compare Flight Prices from Philadelphia to Seattle

Affordable Airfare Tickets from PHL to SEA Airport

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $175 round trip and $59 one way. Prices and availability subject to change. Additional terms may apply.

Wed, May 28 - Fri, Jun 6
PHL
Philadelphia
SEA
Seattle
$175 Roundtrip, found 1 hour ago
$175
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Wed, May 28 from Philadelphia to Seattle, returning Fri, Jun 6, priced at $175 found 1 hour ago
Wed, May 28 - Fri, May 30
PHL
Philadelphia
SEA
Seattle
$176 Roundtrip, found 11 hours ago
$176
Roundtrip
found 11 hours ago
Select Spirit Airlines flight, departing Wed, May 28 from Philadelphia to Seattle, returning Fri, May 30, priced at $176 found 11 hours ago
Wed, May 28 - Fri, Jun 6
PHL
Philadelphia
SEA
Seattle
$180 Roundtrip, found 1 hour ago
$180
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Wed, May 28 from Philadelphia to Seattle, returning Fri, Jun 6, priced at $180 found 1 hour ago
Wed, May 28 - Fri, May 30
PHL
Philadelphia
SEA
Seattle
$181 Roundtrip, found 11 hours ago
$181
Roundtrip
found 11 hours ago
Select Spirit Airlines flight, departing Wed, May 28 from Philadelphia to Seattle, returning Fri, May 30, priced at $181 found 11 hours ago
Wed, May 28 - Wed, Jun 4
PHL
Philadelphia
SEA
Seattle
$190 Roundtrip, found 11 hours ago
$190
Roundtrip
found 11 hours ago
Select Spirit Airlines flight, departing Wed, May 28 from Philadelphia to Seattle, returning Wed, Jun 4, priced at $190 found 11 hours ago
Wed, May 28 - Sat, May 31
PHL
Philadelphia
SEA
Seattle
$192 Roundtrip, found 18 hours ago
$192
Roundtrip
found 18 hours ago
Select Spirit Airlines flight, departing Wed, May 28 from Philadelphia to Seattle, returning Sat, May 31, priced at $192 found 18 hours ago
Wed, May 28 - Mon, Jun 9
PHL
Philadelphia
SEA
Seattle
$196 Roundtrip, found 1 day ago
$196
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Wed, May 28 from Philadelphia to Seattle, returning Mon, Jun 9, priced at $196 found 1 day ago
Tue, May 27 - Tue, Jun 3
PHL
Philadelphia
SEA
Seattle
$197 Roundtrip, found 6 hours ago
$197
Roundtrip
found 6 hours ago
Select Spirit Airlines flight, departing Tue, May 27 from Philadelphia to Seattle, returning Tue, Jun 3, priced at $197 found 6 hours ago
Sat, May 24 - Wed, May 28
PHL
Philadelphia
SEA
Seattle
$200 Roundtrip, found 2 hours ago
$200
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Sat, May 24 from Philadelphia to Seattle, returning Wed, May 28, priced at $200 found 2 hours ago
Wed, May 28 - Mon, Jun 2
PHL
Philadelphia
SEA
Seattle
$201 Roundtrip, found 2 hours ago
$201
Roundtrip
found 2 hours ago
Select Spirit Airlines flight, departing Wed, May 28 from Philadelphia to Seattle, returning Mon, Jun 2, priced at $201 found 2 hours ago

Seattle - Tacoma Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Wander Camp Olympic

Wander Camp Olympic

2 out of 5
per person
Jun 18 - Jun 22
found 1 day ago
Roundtrip non-stop flight included
Philadelphia (PHL) to Seattle (SEA)
Baymont by Wyndham Bremerton WA

Baymont by Wyndham Bremerton WA

2.5 out of 5
per person
Jun 18 - Jun 22
found 1 day ago
Roundtrip non-stop flight included
Philadelphia (PHL) to Seattle (SEA)
Quality Inn Port Orchard

Quality Inn Port Orchard

2 out of 5
per person
Jun 18 - Jun 22
found 1 day ago
Roundtrip non-stop flight included
Philadelphia (PHL) to Seattle (SEA)
Poulsbo Inn & Suites

Poulsbo Inn & Suites

2 out of 5
per person
Jun 18 - Jun 22
found 1 day ago
Roundtrip non-stop flight included
Philadelphia (PHL) to Seattle (SEA)
Oyster Bay Inn & Suites

Oyster Bay Inn & Suites

2.5 out of 5
per person
Jun 18 - Jun 22
found 1 day ago
Roundtrip non-stop flight included
Philadelphia (PHL) to Seattle (SEA)
Don't see what you're looking for?
See all available trips from Philadelphia Intl. to Seattle - Tacoma Intl.
View all trips

Frequently asked questions

Are there direct flights from Philadelphia Intl. Airport (PHL) to SEA?
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.
How long is the flight from Philadelphia Intl. Airport (PHL) to Seattle - Tacoma Intl. Airport (SEA)?
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.
What is the flight distance from Philadelphia Intl. Airport (PHL) to Seattle - Tacoma Intl. Airport (SEA)?
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.
What airlines fly from PHL to SEA?
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.
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.

Flight information from Philadelphia to Seattle

 

Traveling From
Philadelphia Intl.
Traveling To
Seattle - Tacoma Intl.
Shortest Flight Time
5 hours 55 mins
Earliest Departure Time
7:04AM EDT
Latest Departure Time
6:53PM EDT
Lowest Flight Price
$175

Route Info

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


Origin:
PHL - Philadelphia International Airport
Destination:
SEA - Seattle-Tacoma International Airport
Distance:
2,385.00 miles


Airlines & Aircraft Used on PHL to SEA Flight Routes


Airline Carrier
Aircraft
American Airlines
Boeing 737 all pax models
American Airlines
Embraer EMB.110 Bandeirnate
Jet Airways (India)
Airbus A330-200
United Airlines
Airbus A320-100/200

Discover our best flights from Philadelphia PHL to Seattle SEA. 

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 Philadelphia PHL to Seattle SEA at the right price  

Airfares to Seattle SEA from Philadelphia PHL currently cost between $175 and $201. 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 Philadelphia PHL to Seattle SEA 

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 Philadelphia PHL to Seattle SEA on Travelocity starting at $59. Prices and availability subject to change. Additional terms may apply. 

 

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

Get to Seattle faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to SEA from PHL to take around 5 hour(s) 55 min(s).  

 

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

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to SEA from PHL. 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 Philadelphia PHL to Seattle SEA today 

If you’re flexible about when you travel, May is usually the cheapest month to fly from Philadelphia PHL to Seattle SEA. 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 Seattle SEA from Philadelphia PHL 

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

 

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