Seattle to Philadelphia (SEA-PHL): nonstop upgrade & award space

American Airlines, Alaska Airlines, and Delta Air Lines fly nonstop between Seattle (SEA) and Philadelphia (PHL), roughly 46 times a week. Long-haul cabins on a corridor this busy are large but never idle: premium cabin inventory reshuffles around every schedule change, and the best dates go first. 2LNR tracks confirmed upgrade and award space on American Airlines, Alaska Airlines, and Delta Air Lines, on every SEA to PHL departure, so you know which flights have space before you book.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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46
Nonstop flights a week
2,372 mi
Nonstop distance
Free
To get started

Seattle to Philadelphia flight schedule

Scheduled nonstop departures for SEA to PHL, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Seattle (SEA) to Philadelphia (PHL)
Date Flight Airline Departs SEA Arrives PHL Duration Aircraft
AA 986American Airlines08:2016:375h 17m321
AS 442Alaska Airlines, Inc.09:3317:565h 23m7M9
AS 371Alaska Airlines, Inc.21:2705:405h 13m73J
DL 1114Delta Air Lines21:3005:505h 20m32Q
AS 522Alaska Airlines, Inc.22:0206:135h 11m73J
AA 2886American Airlines22:4507:005h 15m321
AA 986American Airlines08:2016:475h 27m32Q
AS 442Alaska Airlines, Inc.09:3317:565h 23m7M8
AA 2870American Airlines12:4021:045h 24m32Q
AS 371Alaska Airlines, Inc.21:2705:405h 13m73J
DL 1114Delta Air Lines21:3005:505h 20m32Q
AS 522Alaska Airlines, Inc.22:0206:135h 11m73J
AA 2886American Airlines22:4507:005h 15m321
AA 986American Airlines08:2016:475h 27m32Q
AS 442Alaska Airlines, Inc.09:3317:565h 23m73H
AA 2870American Airlines12:4021:045h 24m32Q
AS 371Alaska Airlines, Inc.21:2705:405h 13m7M9
DL 1114Delta Air Lines21:3005:505h 20m32Q
AS 522Alaska Airlines, Inc.22:0206:135h 11m73J
AA 2886American Airlines22:4507:005h 15m321
AA 986American Airlines08:2016:475h 27m32Q
AS 442Alaska Airlines, Inc.09:3317:565h 23m7M8
AS 371Alaska Airlines, Inc.21:2705:405h 13m7M9
DL 1114Delta Air Lines21:3005:505h 20m32Q
AS 522Alaska Airlines, Inc.22:0206:135h 11m73J
AA 2886American Airlines22:4507:005h 15m321
AA 986American Airlines08:2016:475h 27m32Q
AS 442Alaska Airlines, Inc.09:3317:565h 23m7M8
AA 2870American Airlines12:4021:045h 24m32Q
AS 371Alaska Airlines, Inc.21:2705:405h 13m7M8
DL 1114Delta Air Lines21:3005:505h 20m32Q
AS 522Alaska Airlines, Inc.22:0206:135h 11m73J
AA 2886American Airlines22:4507:005h 15m321
AA 986American Airlines08:2016:475h 27m32Q
AS 442Alaska Airlines, Inc.09:3317:565h 23m7M8
AA 2870American Airlines12:4021:045h 24m32Q
AS 371Alaska Airlines, Inc.21:2705:405h 13m73J
DL 1114Delta Air Lines21:3005:505h 20m32Q
AS 522Alaska Airlines, Inc.22:0206:135h 11m73J
AA 2886American Airlines22:4507:005h 15m321

Showing the first 40 of 46 scheduled SEA to PHL departures across the next 7 days with service. Every remaining date is on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every SEA to PHL date on the interactive map

Confirmed upgrade & award space on SEA to PHL departures

2LNR tracks confirmed upgrade and award space on American Airlines, Alaska Airlines, and Delta Air Lines, segment by segment and date by date. Open the calendar for Seattle to Philadelphia to see which departures have space, the next 14 days free on every product and the full horizon on Pro.

See real availability

Confirmed upgrade and award seats on each SEA to PHL departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See SEA to PHL on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seattle to Philadelphia nonstop

Carriers operating SEA to PHL nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

See SEA to PHL on the interactive map →

Frequently asked questions about SEA to PHL

How far is Philadelphia from Seattle?
SEA to PHL covers about 2,372 miles nonstop. Flight times vary by aircraft and season; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from SEA to PHL?
American Airlines, Alaska Airlines, and Delta Air Lines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on American Airlines, Alaska Airlines, and Delta Air Lines.
How many flights a week are there from SEA to PHL?
About 46 nonstop flights a week run between Seattle and Philadelphia in the current schedule, operated by American Airlines, Alaska Airlines, and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from SEA to PHL depart?
Scheduled SEA to PHL nonstops in the next 7 days with service leave between 08:20 and 22:45, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on SEA to PHL?
Open the SEA to PHL route on the interactive map or the matrix to see confirmed upgrade and award space by date on American Airlines, Alaska Airlines, and Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss SEA to PHL upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

Get started free