Flights operate between Washington (DCA) and SeaTac (SEA).
1 airline operates this route with 2-3 flights daily flights.
Average flight time is 5h 39m - 6h 13m.
Route distance is 2335 miles (3757 km).
Route Distance
2335 miles (3757 km)
Average Duration
5h 39m - 6h 13m
Airlines Operating This Route
Alaska Airlines
Flight Frequency
Daily Flights
2-3 flights
Weekly Flights
21
Typical Departure Time Ranges
Earliest Departure
08:00
Latest Departure
17:00
Route Intelligence Dashboard
Overall Connectivity Score
60
GoodRoute Diversity
1
Direct Routes
Alaska Airlines serves 1 destination from DCA
Weekly Frequency
14
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| DCA → SeaTac (SEA) (SEA) | 14/week | 5h 39m - 6h 13m | 2,335 km | Moderate |
Flight Schedule & Filters
Alaska Airlines flights from Arlington (DCA) to SeaTac (SEA)
Alaska Airlines operates scheduled nonstop flights between Arlington (DCA) and SeaTac (SEA). Alaska Airlines operates 2-3 flights daily flights on this route.• Flight Duration: 5h 39m - 6h 13m (average flight time)• Distance: 2335 miles (3757 km) (air miles between airports)• Daily Flights: 2-3 flights (scheduled departures per day)
Arlington (DCA)
US
SeaTac (SEA)
US
FLIGHT TIME
5h 39m - 6h 13m
FLIGHT DISTANCE
2335 miles (3757 km)
6h 5m - 6h 5m
08:00
17:00
2335 miles (3757 km)
March
1 (Show)
21
Alaska Airlines Terminal Information & Contact
Departure Terminal - Arlington (DCA)
Terminal: 2
Phone: 1-800-252-7522
Location: 2, Washington, US
Arrival Terminal - SeaTac (SEA)
Terminal: 1
Phone: 1-800-252-7522
Location: 1, Seattle, US
Alaska Airlines Flight Schedule from Arlington (DCA) to SeaTac (SEA)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
AS1 |  Alaska Airlines | 08:00 | 11:05:00 | Boeing 737-800 (winglets) Passenger/BBJ2 |
AS3 | Alaska Airlines | 17:00 | 20:05:00 | Boeing 737MAX 8 Passenger |
Alaska Airlines Monthly Flight Calendar
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Alaska Airlines Terminal Information
Departure Terminal at Arlington (DCA):
Terminal 2:
• Alaska Airlines Terminal Phone: 1-800-252-7522
Arrival Terminal at SeaTac (SEA):
• Terminal : Alaska Airlines operates from this terminal
Terminal 1:
• Alaska Airlines Terminal Phone: 1-800-252-7522
Alaska Airlines Contact Information and Customer Services
Alaska Airlines Address
P.O. Box 68900
Seattle, WA 98168, USA
Customer Service Phone
+1 800 654 5669Official Website
alaskaair.com/Frequently Asked Questions
How many Alaska Airlines flights operate from Washington (DCA) to Seattle (SEA)?
Alaska Airlines operates 2 flights from Washington (DCA) to Seattle (SEA).
What city does Seattle (SEA) airport serve?
Seattle (SEA) airport serves SeaTac, US.
How long is the Alaska Airlines flight from Washington (DCA) to Seattle (SEA)?
The flight duration is approximately 5h 39m - 6h 13m.
What is the distance from Washington (DCA) to Seattle (SEA)?
The distance is 2335 miles (3757 km).
What aircraft does Alaska Airlines use on this route?
Alaska Airlines uses Boeing 737-800 (winglets) Passenger/BBJ2, Boeing 737MAX 8 Passenger on this route.
Which other airlines operate on this route?
1 other airline operates on this route: Delta Air Lines.
What are the earliest and latest Alaska Airlines flight departure times?
The earliest Alaska Airlines flight departs at 08:00 and the latest departs at 17:00.
View all Alaska Airlines flights to Washington (DCA) →
Popular Alaska Airlines routes from Washington include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.