Cheap Flights From Seattle - Tacoma Intl. (SEA) To Philadelphia Intl. (PHL)

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

The cheapest flights to Philadelphia Intl. found within the past 7 days were CA $325 round trip and CA $191 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Feb 7 - Sat, Feb 14
SEA
Seattle
PHL
Philadelphia
CA $325 Roundtrip, found 1 day ago
CA $325
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Feb 7 from Seattle to Philadelphia, returning Sat, Feb 14, priced at CA $325 found 1 day ago
Wed, Jan 21 - Sat, Jan 24
SEA
Seattle
PHL
Philadelphia
CA $333 Roundtrip, found 6 days ago
CA $333
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Wed, Jan 21 from Seattle to Philadelphia, returning Sat, Jan 24, priced at CA $333 found 6 days ago
Sat, Jan 17 - Tue, Jan 20
SEA
Seattle
PHL
Philadelphia
CA $388 Roundtrip, found 3 days ago
CA $388
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Jan 17 from Seattle to Philadelphia, returning Tue, Jan 20, priced at CA $388 found 3 days ago
Thu, Mar 19 - Tue, Mar 24
SEA
Seattle
PHL
Philadelphia
CA $411 Roundtrip, found 4 days ago
CA $411
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Thu, Mar 19 from Seattle to Philadelphia, returning Tue, Mar 24, priced at CA $411 found 4 days ago
Tue, Jan 6 - Sun, Jan 11
SEA
Seattle
PHL
Philadelphia
CA $414 Roundtrip, found 1 day ago
CA $414
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Jan 6 from Seattle to Philadelphia, returning Sun, Jan 11, priced at CA $414 found 1 day ago
Wed, Dec 31 - Thu, Jan 8
SEA
Seattle
PHL
Philadelphia
CA $419 Roundtrip, found 3 days ago
CA $419
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Dec 31 from Seattle to Philadelphia, returning Thu, Jan 8, priced at CA $419 found 3 days ago
Sun, Apr 5 - Sun, Apr 12
SEA
Seattle
PHL
Philadelphia
CA $520 Roundtrip, found 4 days ago
CA $520
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Apr 5 from Seattle to Philadelphia, returning Sun, Apr 12, priced at CA $520 found 4 days ago
Fri, Aug 21 - Sun, Aug 23
SEA
Seattle
PHL
Philadelphia
CA $522 Roundtrip, found 2 days ago
CA $522
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Aug 21 from Seattle to Philadelphia, returning Sun, Aug 23, priced at CA $522 found 2 days ago
Wed, Dec 31 - Thu, Jan 8
SEA
Seattle
PHL
Philadelphia
CA $528 Roundtrip, found 3 days ago
CA $528
Roundtrip
found 3 days ago
Select Sun Country Airlines flight, departing Wed, Dec 31 from Seattle to Philadelphia, returning Thu, Jan 8, priced at CA $528 found 3 days ago
Thu, Mar 26 - Sun, Mar 29
SEA
Seattle
PHL
Philadelphia
CA $536 Roundtrip, found 2 days ago
CA $536
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Mar 26 from Seattle to Philadelphia, returning Sun, Mar 29, priced at CA $536 found 2 days ago

Frequently asked questions

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.
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 is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca 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 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle (SEA) today with the cheap prices from Travelocity!

Popular Flight Routes from Philadelphia (PHL)

Travelers at PHL love to visit these top cities. Roam to the top destinations from Philadelphia(PHL) today with the cheap prices from Travelocity!

*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.