Cheap Flight Tickets from Seattle (SEA) to Philadelphia (PHL), Starting at $105

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

$123

WN Southwest Airlines • 1 stop • 15h 20m

Jun 25 – Jun 25

The cheapest round trip flight from Seattle to Philadelphia (SEA-PHL-SEA) is currently $123

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Cheapest One way Flight

$888

WN Southwest Airlines • 2 stops • 42h 5m

May 30

The cheapest one way flight from Seattle to Philadelphia (SEA-PHL) is currently $888

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Cheapest Direct Flight

$105

AS Alaska Airlines • nonstop • 8h 31m

Jun 25

The cheapest nonstop flight from Seattle to Philadelphia (SEA-PHL) is currently $105

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Fastest Flight

8h 30m

The fastest nonstop flight from Seattle to Philadelphia (SEA-PHL) takes 8h 30m

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

Sun Country Airlines (SY)

Sun Country 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.

Jun 25 - Jun 25, Economy
WN
Seattle → Philadelphia
15h 20m
12:20 PM - 12:40 AM • 1 stop
WN
Seattle → Philadelphia
12h 25m
5:00 AM - 9:45 AM • 1 stop
$123
Southwest Airlines
Jun 25 - Jun 25, Economy
WN
Seattle → Philadelphia
13h 50m
11:05 PM - 10:35 AM • 1 stop
WN
Seattle → Philadelphia
12h 25m
5:00 AM - 9:45 AM • 1 stop
$123
Southwest Airlines
Jun 25 - Jun 25, Economy
WN
Seattle → Philadelphia
15h 50m
11:05 PM - 11:55 AM • 1 stop
WN
Seattle → Philadelphia
12h 25m
5:00 AM - 9:45 AM • 1 stop
$123
Southwest Airlines
Jun 25 - Jun 25, Economy
AA
Seattle → Philadelphia
8h 42m
12:46 PM - 9:08 PM • nonstop
AA
Seattle → Philadelphia
10h 23m
7:35 PM - 10:58 PM • nonstop
$284
American Airlines
Jun 25 - Jun 25, Economy
UA
Seattle → Philadelphia
12h 5m
11:20 PM - 9:45 AM • 1 stop
UA
Seattle → Philadelphia
12h 36m
4:14 PM - 9:10 PM • 1 stop
$990
United Airlines
Jun 25 - Jun 25, Economy
DL
Seattle → Philadelphia
13h 37m
7:20 AM - 6:37 PM • 1 stop
DL
Seattle → Philadelphia
12h 1m
6:10 AM - 10:31 AM • 1 stop
$1144
Delta 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 5:45 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 1225
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 9:000 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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