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Amazing PHL to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $148 round trip and $80 one way. Prices and availability subject to change. Additional terms may apply.

Flight Schedule for PHL to SEA

Carrier Flight Depart PHL Arrive SEA Sat
AS 17 04:50 pm 07:57 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AA 564 10:10 am 01:22 pm - Check fare Check fare - Check fare Check fare Check fare 0 stop(s)

FAQs about flights from Philadelphia Intl. Airport (PHL) to Seattle - Tacoma Intl. Airport (SEA)

Are there direct flights from Philadelphia, PA (PHL-Philadelphia Intl.) to Sea-Tac Airport?

Start your escape calm and relaxed and travel straight to Seattle, WA (SEA-Seattle - Tacoma Intl.) from Philadelphia, PA (PHL-Philadelphia Intl.). Alaska Airlines and American Airlines are among the airlines that operate direct services on this flight route.

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 Seattle, WA (SEA-Seattle - Tacoma Intl.), please visit our Customer Service Portal.

How long is the flight from Philadelphia, PA (PHL-Philadelphia Intl.) to Sea-Tac Airport?

Flights between Philadelphia and Seattle take approximately 6 hours and 33 minutes in total. Make the most of that time in the air by reading, snoozing away, exploring the in-flight entertainment or doing all three.

What is the flight distance from Philadelphia, PA (PHL-Philadelphia Intl.) to Sea-Tac Airport?

There's a flight distance of 2,361 mi between Philadelphia, PA (PHL-Philadelphia Intl.) and Seattle, WA (SEA-Seattle - Tacoma Intl.). This is classified as a medium-haul flight. There'll be enough time to enjoy the in-flight entertainment and catch up on a little sleep if you're feeling tired.

What airlines fly from Philadelphia, PA (PHL-Philadelphia Intl.) to Sea-Tac Airport?

You have a choice of several airlines that fly direct between Philadelphia and Seattle. Alaska Airlines (AS) is one of the most liked. This carrier offers 90 flights each month. An alternative is American Airlines (AA), which offers 137 flights every month. The more airlines you weigh up, the more likely you are to snap up a superb deal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week 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 2019, flights departing on a Tuesday 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 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on from January to December 2019. Savings are subject to change based on departure location, date and destination.

Philadelphia Intl. to Seattle - Tacoma Intl. Flight FAQ

Traveling FromPhiladelphia Intl.
Traveling ToSeattle - Tacoma Intl.
Shortest Flight Time6 hours 7 mins
Earliest Departure Time10:10AM EDT
Latest Departure Time4:50PM EDT
Lowest Flight Price$148

Philadelphia to Seattle Carriers and Route Information

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

2,385.00 miles

Airlines & Aircraft Used on PHL to SEA Flight Routes

Airline Carrier
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
*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.