Alaska Airlines flights from STS to SEA
Find comprehensive Alaska Airlines flight information, schedules, and booking details for direct flights from STS to SEA. Alaska Airlines operates 1-2 flights daily flights on this route.• Flight Duration: 1h 59m - 2h 10m (average flight time)• Distance: 621 miles (999 km) (air miles between airports)• Daily Flights: 1-2 flights (scheduled departures per day)
STS
SEA
FLIGHT TIME
1h 59m - 2h 10m
FLIGHT DISTANCE
621 miles (999 km)
2h 4m - 2h 9m
14:41
20:15
621 miles (999 km)
October
1 (Show)
13
Alaska Airlines Flight Schedule from STS to SEA
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
AS1322 |  Alaska Airlines | 14:41 | 16:45:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
AS3010 | Alaska Airlines | 20:15 | 22:24:00 | Embraer 175 |
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 1h 59m - 2h 10m.
Pricing patterns: October typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 14:00, 20:00, offering more flight options and potentially better connections.
STS - SEA flight price statistics
$347
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.
$447
Jan$538
Feb$218
Mar$178
Apr$939
May$232
Jun$318
Jul$275
Aug$258
Sep$178
Oct$258
Nov$325
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 STS to SEA?
Alaska Airlines operates 2 flights from STS to SEA.
What city does SEA airport serve?
SEA airport serves SeaTac.
How long is the Alaska Airlines flight from STS to SEA?
The flight duration is approximately 1h 59m - 2h 10m.
What is the distance from STS to SEA?
The distance is 621 miles (999 km).
What aircraft does Alaska Airlines use on this route?
Alaska Airlines uses Boeing 737-800 (winglets) Passenger/BBJ2, Embraer 175 on this route.
What are the earliest and latest Alaska Airlines flight departure times?
The earliest Alaska Airlines flight departs at 14:41 and the latest departs at 20:15.
What is the cheapest month to fly Alaska Airlines from STS to SEA?
October is typically the cheapest month to fly Alaska Airlines on this route.
What is the average price for a Alaska Airlines flight from STS to SEA?
The average price for a round-trip Alaska Airlines flight on this route is approximately $347. Prices can vary based on booking time and demand.
How many Alaska Airlines flights operate per week on this route?
Alaska Airlines operates approximately 13 flights per week from STS to SEA.