🇺🇸 SEA
Seattle
2325 mi
DCA 🇺🇸
Washington

Seattle to Washington Flights

Seattle–Tacoma International Airport Ronald Reagan Washington National Airport 2 airlines

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The Seattle to Washington route connects Seattle–Tacoma International Airport (SEA) in US with Ronald Reagan Washington National Airport (DCA) in US. This medium-haul flight covers approximately 2325 miles (3742 km) with a typical flight time of 4h 25m. This route is served by 2 airlines: Alaska Airlines, Delta Air Lines. AirportRoutes has tracked 3 unique flight numbers on this route.

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Departure Airport

Seattle–Tacoma International Airport

ICAO Code:
KSEA
IATA Code:
SEA
City:
🇺🇸 Seattle
Country:
US
Elevation:
433 ft

Destination Airport

Ronald Reagan Washington National Airport

ICAO Code:
KDCA
IATA Code:
DCA
City:
🇺🇸 Washington
Country:
US
Elevation:
15 ft

2

Operators

3

Tracked Flights

2325

Miles

4h 25m

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
Alaska Airlines ASA AS
Delta Air Lines DAL DL

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 2 8%
Tuesday 2 8%
Wednesday 2 8%
Thursday 4 16%
Friday 4 16%
Saturday 6 24%
Sunday 5 20%

Pattern Analysis

3 Tracked Flights:
Data Points: 25
API observations used to build this analysis
Weekdays: 14 flights
Weekend: 11 flights
Business Route More active on weekdays

All Flight Routes

2 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
B738 13:56 1:56 PM (Representative)
M T W T F S S
Jun 19, 2026 Active
B752 07:25 7:25 AM (Representative)
M T W T F S S
Jun 19, 2026 Active
Total Routes: 2
Active Routes: 2
Unique Airlines: 2
Aircraft Types: 2

Spotted Departure Times

Departure Time Operator ICAO IATA
07:25 7:25 AM Delta Air Lines DAL DL
13:56 1:56 PM Alaska Airlines ASA AS

Time Information

Times are shown in the departure airport's local timezone (KSEA - America/Los_Angeles).

Total Departure Times: 2
Time Range:
07:25 - 13:56
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.