Alaska Airlines flights from SEA to IAD
Find comprehensive Alaska Airlines flight information, schedules, and booking details for direct flights from SEA to IAD. Alaska Airlines operates 3-6 flights daily flights on this route.• Flight Duration: 4h 50m - 5h 17m (average flight time)• Distance: 2313 miles (3722 km) (air miles between airports)• Daily Flights: 3-6 flights (scheduled departures per day)
SEA
IAD
FLIGHT TIME
4h 50m - 5h 17m
FLIGHT DISTANCE
2313 miles (3722 km)
4h 54m - 4h 59m
09:35
22:20
2313 miles (3722 km)
January
1 (Show)
30
Alaska Airlines Flight Schedule from SEA to IAD
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
AS406 |  Alaska Airlines | 09:35 | 17:34:00 | Boeing 737-900 (winglets) Passenger/BBJ3 |
AS367 | Alaska Airlines | 22:20 | 06:14:00 | 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 50m - 5h 17m.
Pricing patterns: January typically offers lower prices due to reduced demand outside peak travel seasons.
Best departure times: Peak departure times are 9:00, 22:00, offering more flight options and potentially better connections.
SEA - IAD flight price statistics
$413
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.
$236
Jan$409
Feb$346
Mar$355
Apr$357
May$678
Jun$688
Jul$597
Aug$326
Sep$266
Oct$266
Nov$435
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 IAD?
Alaska Airlines operates 2 flights from SEA to IAD.
What city does IAD airport serve?
IAD airport serves Washington.
How long is the Alaska Airlines flight from SEA to IAD?
The flight duration is approximately 4h 50m - 5h 17m.
What is the distance from SEA to IAD?
The distance is 2313 miles (3722 km).
What aircraft does Alaska Airlines use on this route?
Alaska Airlines uses Boeing 737-900 (winglets) Passenger/BBJ3, Boeing 737MAX 9 Passenger on this route.
Which other airlines operate on this route?
2 other airlines operate on this route: United Airlines, Delta Air Lines.
What are the earliest and latest Alaska Airlines flight departure times?
The earliest Alaska Airlines flight departs at 09:35 and the latest departs at 22:20.
What is the cheapest month to fly Alaska Airlines from SEA to IAD?
January 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 IAD?
The average price for a round-trip Alaska Airlines flight on this route is approximately $413. Prices can vary based on booking time and demand.
How many Alaska Airlines flights operate per week on this route?
Alaska Airlines operates approximately 30 flights per week from SEA to IAD.