Cheap Flight Tickets from Seattle (SEA) to Philadelphia (PHL), Starting at $142

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

$624

WN Southwest Airlines • 1 stop • 13h 20m

Oct 15 – Oct 19

The cheapest round trip flight from Seattle to Philadelphia (SEA-PHL-SEA) is currently $624

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Cheapest Direct Flight

$142

AS Alaska Airlines • nonstop • 8h 32m

Oct 15

The cheapest nonstop flight from Seattle to Philadelphia (SEA-PHL) is currently $142

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Fastest Flight

26m

The fastest nonstop flight from Seattle to Philadelphia (SEA-PHL) takes 26m

Top Airlines Flying from Seattle to Philadelphia

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United 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.

Oct 15 - Oct 19, Economy
WN
Seattle → Philadelphia
13h 20m
2:10 PM - 1:10 AM • 1 stop
WN
Seattle → Philadelphia
13h 50m
7:10 PM - 12:40 AM • 1 stop
$624
Southwest Airlines
Oct 15 - Oct 19, Economy
WN
Seattle → Philadelphia
18h 30m
8:40 PM - 10:50 AM • 2 stops
WN
Seattle → Philadelphia
13h 50m
7:10 PM - 12:40 AM • 1 stop
$630
Southwest Airlines
Oct 15 - Oct 19, Economy
WN
Seattle → Philadelphia
13h 20m
2:10 PM - 1:10 AM • 1 stop
WN
Seattle → Philadelphia
16h 45m
6:25 AM - 1:30 PM • 2 stops
$700
Southwest Airlines
Oct 15 - Oct 19, Economy
WN
Seattle → Philadelphia
18h 30m
8:40 PM - 10:50 AM • 2 stops
WN
Seattle → Philadelphia
16h 45m
6:25 AM - 1:30 PM • 2 stops
$705
Southwest Airlines
Oct 15 - Oct 19, Economy
WN
Seattle → Philadelphia
39h 5m
4:15 PM - 7:00 PM • 1 stop
WN
Seattle → Philadelphia
13h 50m
7:10 PM - 12:40 AM • 1 stop
$951
Southwest Airlines
Oct 15 - Oct 19, Economy
WN
Seattle → Philadelphia
42h 30m
2:10 PM - 7:00 PM • 1 stop
WN
Seattle → Philadelphia
13h 50m
7:10 PM - 12:40 AM • 1 stop
$951
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 7:10 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 951
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 10:59 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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