Cheap Flight Tickets from Seattle (SEA) to Philadelphia (PHL), Starting at $410

Good to Know: Cheapest and Fastest SEA - PHL Flights

Useful information for finding best airline tickets from Seattle Tacoma International to Philadelphia International on your next trip.

Cheapest Round Trip Flight

$410

WN Southwest Airlines • 1 stop • 11h 50m

Dec 18 – Dec 31

The cheapest round trip flight from Seattle to Philadelphia (SEA-PHL-SEA) is currently $410

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Cheapest Direct Flight

$583

AS Alaska Airlines • nonstop • 8h 29m

Dec 19

The cheapest nonstop flight from Seattle to Philadelphia (SEA-PHL) is currently $583

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Fastest Flight

8h 22m

The fastest nonstop flight from Seattle to Philadelphia (SEA-PHL) takes 8h 22m

Top Airlines Flying from Seattle to Philadelphia

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

Sun Country Airlines (SY)

Sun Country Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Seattle (SEA) to Philadelphia (PHL)

Compare and book low fare round-trip air tickets from Seattle to Philadelphia. Ideal for travelers with confirmed return itineraries.

Dec 18 - Dec 31, Economy
WN
Seattle → Philadelphia
11h 50m
12:15 AM - 10:25 AM • 1 stop
WN
Seattle → Philadelphia
15h
5:00 AM - 11:00 AM • 1 stop
$410
Southwest Airlines
Dec 18 - Dec 31, Economy
WN
Seattle → Philadelphia
20h 55m
6:15 AM - 10:10 PM • 1 stop
WN
Seattle → Philadelphia
15h
5:00 AM - 11:00 AM • 1 stop
$445
Southwest Airlines
Dec 18 - Dec 31, Economy
WN
Seattle → Philadelphia
12h 35m
5:15 AM - 4:10 PM • 1 stop
WN
Seattle → Philadelphia
15h
5:00 AM - 11:00 AM • 1 stop
$445
Southwest Airlines
Dec 18 - Dec 31, Economy
WN
Seattle → Philadelphia
17h 15m
9:50 PM - 11:25 AM • 2 stops
WN
Seattle → Philadelphia
13h 40m
6:15 PM - 11:35 PM • 1 stop
$452
Southwest Airlines
Dec 19 - Jan 01, Economy
WN
Seattle → Philadelphia
20h 15m
8:15 PM - 11:30 AM • 2 stops
WN
Seattle → Philadelphia
13h 40m
7:30 AM - 12:50 PM • 1 stop
$590
Southwest Airlines
Dec 19 - Jan 01, Economy
WN
Seattle → Philadelphia
20h 25m
12:15 AM - 3:40 PM • 1 stop
WN
Seattle → Philadelphia
13h 40m
7:30 AM - 12:50 PM • 1 stop
$717
Southwest Airlines

Fly from Seattle to Philadelphia with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Seattle to Philadelphia? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Seattle to Philadelphia Flights

What are the airports in Seattle?
SEA
What’s the most popular airline flying from SEA to PHL?
The most popular airline flying from Seattle to Philadelphia are
Can I fly from SEA to PHL non-stop?
Yes, you can fly SEA to PHL non-stop on
Which airlines fly nonstop between Seattle and Philadelphia?
The non-stop flights between Seattle and Philadelphia are .
What’s the earliest departure time from SEA to PHL Airport?
The earliest flight leaves SEA at 12:15 am and lands in PHL - Philadelphia International
What are the airports in Philadelphia?
PHL
Can I make changes to my Seattle to Philadelphia flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from SEA to PHL?
Read the fare rules of the Seattle to Philadelphia air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Seattle and Philadelphia?
operate flights between Seattle and Philadelphia
How long does a flight from Seattle to Philadelphia take?
It takes approximately 5 hour to fly non-stop from SEA to PHL, which is 2378.21 miles by air.
Which airlines provide the cheapest flights from Seattle (SEA) to Philadelphia (PHL) ?
In the past couple of days, the cheapest tickets to PHL from SEA were found on WN : USD 590
Do I need a passport to fly between SEA and PHL?
No
What’s the latest departure time from SEA to PHL ?
The last flight leaves SEA at 11:17 pm

Seattle (SEA) to Philadelphia (PHL): Airport Information

Origin Airport Seattle Tacoma International , Seattle, US
Destination Airport Philadelphia International , Philadelphia, US
Distance 2378 miles

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