Direct (non-stop) flights from Arlington (DCA) to SeaTac (SEA)
Find comprehensive flight information, schedules, and booking details for direct flights from Arlington (DCA), US to SeaTac (SEA), US. This popular route is operated by 2 airlines, offering multiple daily departures.• 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 3m - 6h 5m
08:00
17:00
2335 miles (3757 km)
March
2 (Show)
21
Terminal 1 (SeaTac (SEA))
Flight Schedule
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Airlines Operating This Route
Alaska Airlines (AS), Delta Air Lines (DL)
Click any airline to view their specific flight schedules, policies, and route details for this connection. You can also explore flights from Arlington (DCA) and flights to SeaTac (SEA).
Route Insights
Route Demand
With 21 weekly flights, this route maintains steady demand throughout the week, providing travelers with frequent scheduling options.
Route Importance
Multiple airlines compete on this route (2 carriers), indicating its significance in connecting Washington (DCA) and Seattle (SEA). This competition often leads to competitive pricing and multiple daily departure options.
Best Time to Fly
Best Value Period
March typically offers the best value for travelers, with lower average fares compared to peak travel periods.
Price Trends
Price variation throughout the year is significant, with Mar being the most affordable month and prices increasing during peak travel seasons.
Distance & Duration Explained
Route Distance
At 2335 miles (3757 km), this is an ultra-long-haul route between Washington (DCA) and Seattle (SEA), requiring larger aircraft and extended flight times.
Flight Duration
Flight duration averages 5h 39m - 6h 13m, with actual times ranging from 6h 3m - 6h 5m depending on aircraft type, wind conditions, and routing.
Airline Comparison
Available Airlines
Travelers have 2 airline options on this route: Alaska Airlines, Delta Air Lines. Each airline offers different schedules, pricing, and service levels to meet various travel needs.
Flight Frequency
Alaska Airlines operates the most flights on this route with 2 daily departures, followed by Delta Air Lines.
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Best Time to Visit & Travel Planning
Cheapest Day
Cheapest Month
Average Fare
$383
Travel Planning Tips for Arlington (DCA) to SeaTac (SEA)
- Best Day to Book
Tuesday typically offers the lowest fares for flights from Arlington (DCA) to SeaTac (SEA). Consider booking on this day for potential savings.
- Best Month to Travel
September is generally the cheapest month to fly from Arlington (DCA) to SeaTac (SEA). Plan your trip during this month for the best deals.
- Average Flight Price
The average fare for flights from Arlington (DCA) to SeaTac (SEA) is approximately $383. Prices may vary based on booking time, season, and airline.
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Related Pages
Related Airports
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Frequently Asked Questions
How many flights operate from Washington (DCA) to Seattle (SEA)?
There are 3 direct flights operating from Washington (DCA) to Seattle (SEA). Approximately 2-3 flights daily.
Which airlines operate flights from Washington (DCA) to Seattle (SEA)?
2 airlines operate on this route: Alaska Airlines, Delta Air Lines.
How long is the flight from Washington (DCA) to Seattle (SEA)?
The flight duration from Washington (DCA) to Seattle (SEA) is approximately 5h 39m - 6h 13m.
What is the distance from Washington (DCA) to Seattle (SEA)?
The distance from Washington (DCA) to Seattle (SEA) is 2335 miles (3757 km).
What is the flight time range for this route?
Flight times on this route range from 6h 3m - 6h 5m.
What are the earliest and latest flight departure times?
The earliest flight departs at 08:00 and the latest flight departs at 17:00.
What is the cheapest month to fly from Washington (DCA) to Seattle (SEA)?
March is typically the cheapest month to fly on this route.
How many flights operate per week on this route?
Approximately 21 flights operate per week from Washington (DCA) to Seattle (SEA).
What types of aircraft operate on this route?
This route is served by Boeing 737-800 (winglets) Passenger/BBJ2, Boeing 757-200 (winglets) Passenger, Boeing 737MAX 8 Passenger.
What is the average flight price from Washington (DCA) to Seattle (SEA)?
The average flight price for a round-trip ticket from Washington (DCA) to Seattle (SEA) is approximately $608 USD. Prices can vary based on booking time, season, and airline.
When is the best time to book flights from Washington (DCA) to Seattle (SEA) for the lowest prices?
March is typically the cheapest month to fly from Washington (DCA) to Seattle (SEA). Booking in advance and avoiding peak travel seasons can help you find better deals.
How many airlines offer flights from Washington (DCA) to Seattle (SEA)?
2 airlines offer direct flights from Washington (DCA) to Seattle (SEA), providing travelers with multiple options for scheduling and pricing.
How far is Seattle (SEA) from Washington (DCA)?
The distance from Washington (DCA) to Seattle (SEA) is 2335 miles (3757 km). This is a long-haul flight route.
How long does it take to fly from Washington (DCA) to Seattle (SEA)?
The flight time from Washington (DCA) to Seattle (SEA) is approximately 5h 39m - 6h 13m. Actual flight duration may vary based on weather conditions, aircraft type, and routing.
What city does Seattle (SEA) serve?
Seattle (SEA) serves Seattle, US.