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DCA–SEA · Nonstop
Washington (Ronald Reagan Washington National Airport) to Seattle (Seattle-Tacoma International Airport).
The estimated flight time from Washington (DCA) to Seattle (SEA) is about 5h 23m, covering 2,323 miles. Alaska Airlines and Delta Air Lines fly the route nonstop with 3/day departures, from 08:00 to 17:13 local time.
Plan this route| Est. flight time | Distance | Route type | Captured freq. | Market |
|---|---|---|---|---|
| ~5h 23m Estimated from great-circle distance — no tracked flights yet. | 2,323 mi | Nonstop | 3/day From the current provider sample; confirm live timetables before booking. | Domestic |
Alaska Airlines and Delta Air Lines operate 3/day flights from DCA to SEA. Terminal assignments in the captured sample are not confirmed for your flight; check the airline before travel.
| Airline | Captured frequency | Aircraft | Departures (local) |
|---|---|---|---|
| Alaska Airlines | 2/day | Boeing 737 · Airline terminal guide (confirm for your flight) · Seat map | 08:0017:0017:13 |
| Delta Air Lines | 1/day | Airbus A320 family · Airline terminal guide (confirm for your flight) · Seat map | 16:35 |
Methodology: airline, aircraft, terminal, and departure-time details come from a full week of published airline schedules for DCA, refreshed on a rolling basis. Frequency uses 21 scheduled departures across 7 observed days; flight time is estimated from flying distance until this route has enough tracked flights for an observed average.
The estimated flight time from Washington (DCA) to Seattle (SEA) is about 5h 23m, based on the 2,323-mile flying distance.
Washington (DCA) to Seattle (SEA) is about 2,323 miles by air.
Yes. Alaska Airlines and Delta Air Lines fly nonstop from Washington (DCA) to Seattle (SEA), with 3/day departures.
Alaska Airlines and Delta Air Lines fly nonstop from Washington (DCA) to Seattle (SEA).
The DCA–SEA route is flown with Airbus A320 family, Boeing 737.