Alaska Airlines flights from SEA to PHL
Find comprehensive Alaska Airlines flight information, schedules, and booking details for direct flights from SEA to PHL. Alaska Airlines operates 1-3 flights daily flights on this route.• Flight Duration: 4h 55m - 6h 15m (average flight time)• Distance: 2385 miles (3837 km) (air miles between airports)• Daily Flights: 1-3 flights (scheduled departures per day)
SEA
PHL
FLIGHT TIME
4h 55m - 6h 15m
FLIGHT DISTANCE
2385 miles (3837 km)
5h 5m - 5h 11m
09:13
21:36
2385 miles (3837 km)
March
1 (Show)
23
Alaska Airlines Flight Schedule from SEA to PHL
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
AS442 |  Alaska Airlines | 09:13 | 17:18:00 | Boeing 737MAX 9 Passenger |
AS371 | Alaska Airlines | 21:36 | 05:47:00 | Boeing 737MAX 9 Passenger |
Alaska Airlines Monthly Flight Calendar
December 2025
Route Insights
Duration variability: Flight duration on this route can vary based on aircraft type, wind conditions, and airline scheduling. Average duration is 4h 55m - 6h 15m.
Pricing patterns: March typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 9:00, 21:00, offering more flight options and potentially better connections.
SEA - PHL flight price statistics
$512
ApproximateThe numbers are average prices found based on user searches for direct flights between the airports. It's calculated from the cheapest prices found per month for a round-trip with 1 adult and can vary depending on the amount of data we have for this particular route.
$476
Jan$658
Feb$273
Mar$356
Apr$368
May$808
Jun$589
Jul$658
Aug$463
Sep$358
Oct$358
Nov$778
DecAlaska Airlines Terminal Information
Terminal information for Alaska Airlines on this route is currently being updated. Please check back soon or contact the airports directly for terminal details.
Frequently Asked Questions about Alaska Airlines Flights
How many Alaska Airlines flights operate from SEA to PHL?
Alaska Airlines operates 2 flights from SEA to PHL.
What city does PHL airport serve?
PHL airport serves Philadelphia.
How long is the Alaska Airlines flight from SEA to PHL?
The flight duration is approximately 4h 55m - 6h 15m.
What is the distance from SEA to PHL?
The distance is 2385 miles (3837 km).
What aircraft does Alaska Airlines use on this route?
Alaska Airlines uses Boeing 737MAX 9 Passenger on this route.
Which other airlines operate on this route?
1 other airline operates on this route: American Airlines.
What are the earliest and latest Alaska Airlines flight departure times?
The earliest Alaska Airlines flight departs at 09:13 and the latest departs at 21:36.
What is the cheapest month to fly Alaska Airlines from SEA to PHL?
March is typically the cheapest month to fly Alaska Airlines on this route.
What is the average price for a Alaska Airlines flight from SEA to PHL?
The average price for a round-trip Alaska Airlines flight on this route is approximately $512. Prices can vary based on booking time and demand.
How many Alaska Airlines flights operate per week on this route?
Alaska Airlines operates approximately 23 flights per week from SEA to PHL.