Direct flights from Seattle to Philadelphia

Did you mean Flights from Philadelphia to Seattle?

Seattle

United States

SEA

Seattle Tacoma International Airport

Philadelphia

United States

PHL

Philadelphia International Airport

Route: Nonstop service available
Distance: 2,372 miles
Marketing airlines: 11 airlines
Aircraft: 8 aircraft types
Dates: Oct 5, 2026 – Oct 3, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Lowest price in this limited sample: 12,500 points + $5.00 for SEA → PHL, Economy, on 2026-10-30, booked with Alaska Atmos Rewards. This is an observed fare, not a guaranteed price or the lowest price across all dates and programs.

Departure window: 2026-10-17 through 2026-11-15.

Recently observed award prices by route, flight, departure date, cabin, and booking program
Route / flight	Departure	Cabin	Book with	Points	Fees (USD)	Seats seen	Observed (UTC)
SEA → PHL AS371	2026-10-30	Economy	Alaska Atmos Rewards	12,500	$5.00	9	2026-10-16 23:47
SEA → PHL AS371	2026-10-31	Economy	Alaska Atmos Rewards	12,500	$5.00	9	2026-10-15 19:39
SEA → PHL AS371	2026-10-31	Economy	American Airlines	12,500	$5.00	3	2026-10-15 19:40
SEA → PHL AS371	2026-11-02	Economy	Alaska Atmos Rewards	12,500	$5.00	9	2026-10-15 15:07
SEA → PHL AS371	2026-11-06	Economy	Alaska Atmos Rewards	12,500	$5.00	9	2026-10-17 02:54
SEA → PHL AS371	2026-11-07	Economy	Alaska Atmos Rewards	12,500	$5.00	9	2026-10-15 22:39
SEA → PHL AS371	2026-11-10	Economy	Alaska Atmos Rewards	12,500	$5.00	9	2026-10-16 10:14
SEA → PHL AS442	2026-11-14	Economy	Alaska Atmos Rewards	12,500	$5.00	9	2026-10-16 20:31
SEA → PHL AS371	2026-11-14	Economy	Alaska Atmos Rewards	12,500	$5.00	9	2026-10-16 20:31
SEA → PHL AS371	2026-11-15	Economy	Alaska Atmos Rewards	12,500	$5.00	9	2026-10-17 01:52
SEA → PHL AS442	2026-10-30	Economy	Alaska Atmos Rewards	15,000	$5.00	6	2026-10-16 23:47
SEA → PHL AA2886	2026-10-29	Economy	Qatar Airways	16,000	$350.00	7	2026-10-17 00:19

Explore these booking programs

Search Alaska Atmos Rewards awards Alaska Atmos Rewards booking and transfer guide
Transfer partners in our directory: Bilt Rewards, Marriott Bonvoy, IHG Rewards, Choice Privileges. Check current eligibility and terms before transferring.
Search American Airlines awards American Airlines booking and transfer guide
Transfer partners in our directory: Citi ThankYou, Marriott Bonvoy, IHG Rewards. Check current eligibility and terms before transferring.
Search Qatar Airways awards Qatar Airways booking and transfer guide
Transfer partners in our directory: Amex Membership Rewards, Citi ThankYou, Marriott Bonvoy, hyatt, Ramp Rewards, Bilt Rewards, Capital One, Accor Live Limitless, IHG Rewards, Rove Miles. Check current eligibility and terms before transferring.

Seattle to Philadelphia route overview

Seattle Tacoma International Airport (SEA) serves Seattle; Philadelphia International Airport (PHL) serves Philadelphia.

The airports are 2,372 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from SEA to PHL.

Marketing airlines listed in the current schedule, including codeshare sellers, are American Airlines (AA), Air France (AF), Alaska Airlines (AS), Finnair (AY), British Airways (BA), Cathay Pacific (CX), Delta Air Lines (DL), Starlux Airlines (JX), Korean Air (KE), Qatar Airways (QR) and United Airlines (UA). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 5, 2026 – Oct 3, 2027.

Marketing airlines on the Seattle to Philadelphia route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Air France (AF)Codeshare only
Finnair (AY)Codeshare only
British Airways (BA)Codeshare only
Cathay Pacific (CX)Codeshare only
Starlux Airlines (JX)Codeshare only
Korean Air (KE)Codeshare only
Qatar Airways (QR)Codeshare only

Airline alliance affiliations represented: Oneworld, SkyTeam, Star Alliance

Aircraft flying from SEA to PHL

Frequently asked questions

Which airports serve the Seattle to Philadelphia route?

Seattle Tacoma International Airport (SEA) is the origin airport and Philadelphia International Airport (PHL) is the destination airport.

How far is Philadelphia from Seattle?

SEA and PHL are approximately 2,372 miles apart by great-circle distance.

Are there direct flights from SEA to PHL?

Yes. Roame's current schedule feed shows nonstop service from SEA to PHL.

Which airlines market flights from SEA to PHL?

Which aircraft fly from SEA to PHL?

Aircraft listed in the current schedule include Airbus A321 (321), Airbus A321neo (32Q), Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-800 Winglets (73H), Boeing 737-900 Winglets (73J), Boeing 737 MAX 8 (7M8) and JET.