Direct (nonstop) flights from Seattle to Washington
2 airlines fly nonstop from Seattle Tacoma International (SEA) to Ronald Reagan Washington National (DCA). It's 2,328 miles (3,746 km), about 5h 8m in the air. Operated by Alaska Airlines, Delta Air Lines.
Alaska Airlines
Delta Air Lines
Route data last updated: May 26, 2026
Airlines with non-stop flights
AS
Alaska Airlines
DL
Delta Air Lines
Alternative Routes
Other ways to fly from Seattle to Washington with one stop · direct emits 393 kg CO₂ per passenger
Looking for the return flight?
DCA → SEA: Flights from Washington to SeattleOther direct flights from Seattle
Direct flights from Washington (DCA)
Frequently Asked Questions
How long is the direct flight from Seattle to Washington?
A nonstop flight from Seattle (SEA) to Washington (DCA) takes approximately 5 hours and 8 minutes. The distance is 2,328 miles (3,746 km).
Which airlines fly nonstop from Seattle to Washington?
2 airlines: Alaska Airlines, Delta Air Lines.
Is there a nonstop flight from Seattle to Washington?
Yes. 2 airlines: Alaska Airlines, Delta Air Lines.
How far is Seattle from Washington?
The flight distance from Seattle to Washington is 2,328 miles (3,746 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Los Angeles.
What type of aircraft flies from Seattle to Washington?
At 5h 8m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Seattle to Washington?
Roughly 393 kg CO2 per passenger one-way. That's about the same as driving 1,965 km.
Is the return flight from Washington to Seattle also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Seattle to Washington?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Seattle Tacoma International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.