Philadelphia to Seattle flights: who flies PHL-SEA

Philadelphia to Seattle flight schedule

Scheduled nonstop departures for PHL to SEA starting October 4, 2026, last checked against our schedule feed on October 4, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Scheduled nonstop departures from Philadelphia (PHL) to Seattle (SEA)
Date	Flight	Airline	Departs PHL	Arrives SEA	Duration	Aircraft
Sun, Oct 4	AS 370	Alaska Airlines, Inc.	07:02	09:55	5h 53m	Boeing 737-900
Sun, Oct 4	DL 2092	Delta Air Lines	07:05	09:56	5h 51m	Airbus A321neo family
Sun, Oct 4	AA 2870	American Airlines	08:20	11:40	6h 20m	Airbus A321neo family
Sun, Oct 4	AA 1037	American Airlines	17:45	21:05	6h 20m	Airbus A321neo family
Sun, Oct 4	AS 443	Alaska Airlines, Inc.	18:41	21:41	6h	Boeing 737 MAX 9
Sun, Oct 4	AA 1823	American Airlines	19:35	22:57	6h 22m	Airbus A321
Mon, Oct 5	AS 370	Alaska Airlines, Inc.	07:02	09:55	5h 53m	Boeing 737-900
Mon, Oct 5	DL 2092	Delta Air Lines	07:05	09:56	5h 51m	Airbus A321neo family
Mon, Oct 5	AA 2870	American Airlines	08:30	11:40	6h 10m	Airbus A321neo family
Mon, Oct 5	AA 1398	American Airlines	18:00	21:22	6h 22m	Airbus A321neo family
Mon, Oct 5	AS 443	Alaska Airlines, Inc.	18:41	21:41	6h	Boeing 737 MAX 9
Mon, Oct 5	AA 1823	American Airlines	19:35	22:56	6h 21m	Airbus A321
Tue, Oct 6	DL 2092	Delta Air Lines	07:00	09:58	5h 58m	Airbus A321neo family
Tue, Oct 6	AS 370	Alaska Airlines, Inc.	07:02	09:55	5h 53m	Boeing 737-800
Tue, Oct 6	AA 2870	American Airlines	08:50	12:09	6h 19m	Airbus A321neo family
Tue, Oct 6	AS 443	Alaska Airlines, Inc.	18:41	21:41	6h	Boeing 737 MAX 9
Tue, Oct 6	AA 1823	American Airlines	19:35	22:56	6h 21m	Airbus A321
Wed, Oct 7	DL 2092	Delta Air Lines	07:00	09:58	5h 58m	Airbus A321neo family
Wed, Oct 7	AS 370	Alaska Airlines, Inc.	07:02	09:55	5h 53m	Boeing 737 MAX 9
Wed, Oct 7	AA 2870	American Airlines	08:50	12:09	6h 19m	Airbus A321neo family
Wed, Oct 7	AS 443	Alaska Airlines, Inc.	18:41	21:41	6h	Boeing 737 MAX 9
Wed, Oct 7	AA 1823	American Airlines	19:35	22:56	6h 21m	Airbus A321
Thu, Oct 8	AS 370	Alaska Airlines, Inc.	07:00	09:55	5h 55m	Boeing 737-900
Thu, Oct 8	DL 2092	Delta Air Lines	07:00	09:58	5h 58m	Airbus A321neo family
Thu, Oct 8	AA 2870	American Airlines	08:30	11:40	6h 10m	Airbus A321neo family
Thu, Oct 8	AA 1398	American Airlines	18:00	21:22	6h 22m	Airbus A321neo family
Thu, Oct 8	AS 443	Alaska Airlines, Inc.	18:41	21:41	6h	Boeing 737 MAX 9
Thu, Oct 8	AA 1823	American Airlines	19:35	22:56	6h 21m	Airbus A321
Fri, Oct 9	DL 2092	Delta Air Lines	07:00	09:58	5h 58m	Airbus A321neo family
Fri, Oct 9	AS 370	Alaska Airlines, Inc.	07:02	09:55	5h 53m	Boeing 737-900
Fri, Oct 9	AA 2870	American Airlines	08:20	11:39	6h 19m	Airbus A321
Fri, Oct 9	AA 1398	American Airlines	18:00	21:22	6h 22m	Airbus A321neo family
Fri, Oct 9	AS 443	Alaska Airlines, Inc.	18:41	21:41	6h	Boeing 737 MAX 9
Fri, Oct 9	AA 1823	American Airlines	19:35	22:56	6h 21m	Airbus A321
Sat, Oct 10	AS 370	Alaska Airlines, Inc.	07:00	09:55	5h 55m	Boeing 737-900
Sat, Oct 10	DL 2092	Delta Air Lines	07:00	09:58	5h 58m	Airbus A321neo family
Sat, Oct 10	AA 2870	American Airlines	08:50	12:09	6h 19m	Airbus A321neo family
Sat, Oct 10	AS 443	Alaska Airlines, Inc.	18:41	21:41	6h	Boeing 737 MAX 9
Sat, Oct 10	AA 1823	American Airlines	19:35	22:56	6h 21m	Airbus A321

Showing all 39 scheduled PHL to SEA departures across 7 days with service, starting October 4, 2026. Later dates are 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 hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every PHL to SEA date on the interactive map

Aircraft on the Philadelphia to Seattle nonstop

In the schedule table on this page, American Airlines flies the Airbus A321neo family and the Airbus A321. Alaska Airlines flies the Boeing 737 MAX 9, the Boeing 737-900, and the Boeing 737-800. Delta Air Lines flies the Airbus A321neo family. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Confirmed upgrade & award space on PHL to SEA departures

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

In the 7 days to September 30, 2026, 2LNR checked award space on Philadelphia to Seattle departures from September 30 to October 13. Alaska Airlines had space open on 1 of 6 dates checked and Delta Air Lines on 5 of 5.

See real availability

Confirmed upgrade or award seats by date on the PHL to SEA departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

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

Plan on the map

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

Airlines flying Philadelphia to Seattle nonstop

Carriers operating PHL to SEA nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date.

See PHL to SEA on the interactive map →

Frequently asked questions about PHL to SEA

How long is the flight from Philadelphia (PHL) to Seattle (SEA)?

Scheduled flight times from Philadelphia (PHL) to Seattle (SEA) run from 5h 51m to 6h 22m across the departures in the schedule table on this page. The nonstop covers about 2,372 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

Which airlines fly nonstop from PHL to SEA?

Alaska Airlines, American Airlines, and Delta Air Lines fly PHL to SEA nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines, American Airlines, and Delta Air Lines.

How many flights a week are there from PHL to SEA?

About 39 nonstop flights a week run between Philadelphia (PHL) and Seattle (SEA) in the current schedule, operated by Alaska Airlines, American 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 PHL to SEA depart?

Scheduled PHL to SEA nonstops in the next 7 days with service leave between 07:00 and 19:35, local time at Philadelphia. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

Which flights operate PHL to SEA nonstop?

In the schedule table on this page, PHL to SEA nonstops fly as AA 1037, AA 1398, AA 1823, and AA 2870 on American Airlines; AS 370 and AS 443 on Alaska Airlines; and DL 2092 on Delta Air Lines. The table lists each departure by date with its times and aircraft.

How do I check upgrade or award availability on PHL to SEA?

Open the PHL to SEA route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines, American 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.