Alaska Airlines flights from PHL to SEA
Find comprehensive Alaska Airlines flight information, schedules, and booking details for direct flights from PHL to SEA. Alaska Airlines operates 2-3 flights daily flights on this route.• Flight Duration: 5h 54m - 6h 30m (average flight time)• Distance: 2385 miles (3837 km) (air miles between airports)• Daily Flights: 2-3 flights (scheduled departures per day)
PHL
SEA
FLIGHT TIME
5h 54m - 6h 30m
FLIGHT DISTANCE
2385 miles (3837 km)
6h 6m - 6h 7m
07:10
18:18
2385 miles (3837 km)
January
1 (Show)
19
Alaska Airlines Flight Schedule from PHL to SEA
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
AS370 |  Alaska Airlines | 07:10 | 10:17:00 | Boeing 737MAX 9 Passenger |
AS443 | Alaska Airlines | 18:18 | 21:24:00 | 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 5h 54m - 6h 30m.
Pricing patterns: January typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 7:00, 18:00, offering more flight options and potentially better connections.
PHL - SEA flight price statistics
$458
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.
$266
Jan$518
Feb$273
Mar$353
Apr$356
May$857
Jun$638
Jul$638
Aug$377
Sep$357
Oct$508
Nov$358
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 PHL to SEA?
Alaska Airlines operates 2 flights from PHL to SEA.
What city does SEA airport serve?
SEA airport serves SeaTac.
How long is the Alaska Airlines flight from PHL to SEA?
The flight duration is approximately 5h 54m - 6h 30m.
What is the distance from PHL to SEA?
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 07:10 and the latest departs at 18:18.
What is the cheapest month to fly Alaska Airlines from PHL to SEA?
January is typically the cheapest month to fly Alaska Airlines on this route.
What is the average price for a Alaska Airlines flight from PHL to SEA?
The average price for a round-trip Alaska Airlines flight on this route is approximately $458. Prices can vary based on booking time and demand.
How many Alaska Airlines flights operate per week on this route?
Alaska Airlines operates approximately 19 flights per week from PHL to SEA.