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ASA4

SEA → DCA · Boeing 737-800 · Alaska Airlines

For travellers

Departure · Seattle (SEA)

Gate N12
Scheduled 01 Oct 08:00
Board status: Departed
Airborne since 01 Oct 08:17 (ADS-B)

Arrival · Washington (DCA)

Terminal 2 · Gate C30 · Baggage belt 3
Scheduled 01 Oct 16:27 · Landed 01 Oct 15:40 · early
Board status: InGate
Landed 01 Oct 15:40 (airport data)

Board data from mwaa, sea, updated 844 min ago; times local to each airport.

Flight

Status
Completed (landing confirmed by airport data)
Arrival confirmed via
Airport data (confirmed)
Departure
Seattle Tacoma International Airport (SEA) — Seattle, United States
Scheduled departure
2026-10-01 15:00 UTC
Departed
2026-10-01 15:17 UTC
Arrival
Ronald Reagan Washington National Airport (DCA) — Washington, United States
Scheduled arrival
2026-10-01 20:27 UTC
Estimated arrival
2026-10-01 19:41 UTC
Also flies as
AS4
Distance flown
3822 km
Straight-line distance
3738 km

Aircraft

Registration
N512AS
Type
Boeing 737-800
Seats
159 total (117 Economy, 30 Premium, 12 First)
CO2 (EMEP est., total)
84.6 t (813 kg/pax Business, 560 kg/pax Premium Economy, 498 kg/pax Economy)

Altitude & speed

Max altitude
37,025 ft
Max ground speed
538 kt
Tracked
4h 22m · 3,808 km
Altitude (ft, max 37,025)
019,99439,9870m1h 0m2h 0m3h 0m4h 0m
Ground speed (kt, max 538)
02915810m1h 0m2h 0m3h 0m4h 0m
Altitude (ft, max 37,025)
019,99439,9870m2h 0m4h 0m
Ground speed (kt, max 538)
02915810m2h 0m4h 0m

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

Alaska Airlines (ASA)

Latest flights

DepartedFlightRouteRegAircraftStatusDistance
2026-10-02 15:13 UTC ASA4 SEA → DCA
Seattle → Washington
 N821AK Boeing 737 MAX 8 In progress ~3738 km est.
2026-10-01 15:17 UTC ASA4 SEA → DCA
Seattle → Washington
 N512AS Boeing 737-800 Completed (landing confirmed by airport data) 3822 km
2026-09-30 15:24 UTC ASA4 SEA → DCA
Seattle → Washington
 N838AK Boeing 737 MAX 8 Completed 3826 km
2026-09-29 15:04 UTC ASA4 SEA → DCA
Seattle → Washington
 N513AS Boeing 737-800 Completed 3871 km
2026-09-28 15:55 UTC ASA4 SEA → DCA
Seattle → Washington
 N821AK Boeing 737 MAX 8 Completed 3845 km
2026-09-27 14:58 UTC ASA4 SEA → DCA
Seattle → Washington
 N557AS Boeing 737-800 Completed 3901 km
2026-09-26 15:21 UTC ASA4 SEA → DCA
Seattle → Washington
 N581AS Boeing 737-800 Completed 3851 km
2026-09-25 15:13 UTC ASA4 SEA → DCA
Seattle → Washington
 N531AS Boeing 737-800 Completed 3909 km
2026-09-24 15:14 UTC ASA4 SEA → DCA
Seattle → Washington
 N809AK Boeing 737 MAX 8 Completed 3866 km
2026-09-23 15:13 UTC ASA4 SEA → DCA
Seattle → Washington
 N512AS Boeing 737-800 Completed 3871 km
2026-09-22 15:21 UTC ASA4 SEA → DCA
Seattle → Washington
 N803AK Boeing 737 MAX 8 Completed 3850 km
2026-09-21 15:12 UTC ASA4 SEA → DCA
Seattle → Washington
 N806AK Boeing 737 MAX 8 Completed 4045 km
2026-09-20 15:33 UTC ASA4 SEA → DCA
Seattle → Washington
 N516AS Boeing 737-800 Completed 4029 km
2026-09-19 15:09 UTC ASA4 SEA → DCA
Seattle → Washington
 N524AS Boeing 737-800 Completed 4010 km
2026-09-18 15:14 UTC ASA4 SEA → DCA
Seattle → Washington
 N821AK Boeing 737 MAX 8 Completed 3998 km
2026-09-17 15:13 UTC ASA4 SEA → DCA
Seattle → Washington
 N559AS Boeing 737-800 Completed 4173 km
2026-09-16 15:13 UTC ASA4 SEA → DCA
Seattle → Washington
 N806AK Boeing 737 MAX 8 Completed 3974 km
2026-09-15 15:23 UTC ASA4 SEA → DCA
Seattle → Washington
 N577AS Boeing 737-800 Completed 4026 km
2026-09-14 15:22 UTC ASA4 SEA → DCA
Seattle → Washington
 N558AS Boeing 737-800 Completed 4194 km
2026-09-13 15:34 UTC ASA4 SEA → DCA
Seattle → Washington
 N518AS Boeing 737-800 Completed 4039 km
2026-09-12 15:17 UTC ASA4 SEA → DCA
Seattle → Washington
 N537AS Boeing 737-800 Completed 4078 km
2026-09-11 15:24 UTC ASA4 SEA → DCA
Seattle → Washington
 N585AS Boeing 737-800 Completed 4038 km
2026-09-10 15:04 UTC ASA4 SEA → DCA
Seattle → Washington
 N842AK Boeing 737 MAX 8 Completed 4135 km
2026-09-09 17:11 UTC ASA4 SEA → DCA
Seattle → Washington
 N592AS Boeing 737-800 Completed 4060 km
2026-09-07 15:11 UTC ASA4 SEA → DCA
Seattle → Washington
 N581AS Boeing 737-800 Completed 4041 km
2026-09-06 15:12 UTC ASA4 SEA → DCA
Seattle → Washington
 N529AS Boeing 737-800 Completed 4064 km
2026-09-05 15:02 UTC ASA4 SEA → DCA
Seattle → Washington
 N560AS Boeing 737-800 Completed 4022 km
2026-09-04 15:09 UTC ASA4 SEA → DCA
Seattle → Washington
 N528AS Boeing 737-800 Completed 4303 km
2026-09-03 15:13 UTC ASA4 SEA → DCA
Seattle → Washington
 N585AS Boeing 737-800 Completed 4150 km
2026-09-02 17:37 UTC ASA4 SEA → DCA
Seattle → Washington
 N592AS Boeing 737-800 Completed 4286 km
2026-09-01 15:04 UTC ASA4 SEA → DCA
Seattle → Washington
 N809AK Boeing 737 MAX 8 Completed 4038 km
2026-08-31 15:17 UTC ASA4 SEA → DCA
Seattle → Washington
 N570AS Boeing 737-800 Completed 4110 km
2026-08-30 15:07 UTC ASA4 SEA → DCA
Seattle → Washington
 N592AS Boeing 737-800 Completed 3985 km
2026-08-29 15:18 UTC ASA4 SEA → DCA
Seattle → Washington
 N805AK Boeing 737 MAX 8 Completed 4070 km
2026-08-28 15:17 UTC ASA4 SEA → DCA
Seattle → Washington
 N592AS Boeing 737-800 Completed 4055 km
2026-08-27 15:10 UTC ASA4 SEA → DCA
Seattle → Washington
 N813AK Boeing 737 MAX 8 Completed 3979 km
2026-08-26 15:03 UTC ASA4 SEA → DCA
Seattle → Washington
 N564AS Boeing 737-800 Completed 4121 km
2026-08-25 15:12 UTC ASA4 SEA → DCA
Seattle → Washington
 N814AK Boeing 737 MAX 8 Completed 4093 km
2026-08-24 15:04 UTC ASA4 SEA → DCA
Seattle → Washington
 N596AS Boeing 737-800 Completed 4160 km
2026-08-23 16:19 UTC ASA4 SEA → DCA
Seattle → Washington
 N814AK Boeing 737 MAX 8 Completed 4049 km
2026-08-22 15:08 UTC ASA4 SEA → DCA
Seattle → Washington
 N564AS Boeing 737-800 Completed 5661 km
2026-08-21 15:10 UTC ASA4 SEA → DCA
Seattle → Washington
 N570AS Boeing 737-800 Completed 5112 km
2026-08-20 15:10 UTC ASA4 SEA → DCA
Seattle → Washington
 N593AS Boeing 737-800 Completed 8842 km
2026-08-19 15:10 UTC ASA4 SEA → DCA
Seattle → Washington
 N809AK Boeing 737 MAX 8 Completed 8180 km
2026-08-18 15:16 UTC ASA4 SEA → DCA
Seattle → Washington
 N581AS Boeing 737-800 Completed 10867 km
2026-08-17 15:58 UTC ASA4 SEA → DCA
Seattle → Washington
 N530AS Boeing 737-800 Completed 5433 km
2026-08-12 15:08 UTC ASA4 SEA → DCA
Seattle → Washington
 N814AK Boeing 737 MAX 8 Completed 5445 km
2026-08-11 15:51 UTC ASA4 SEA → DCA
Seattle → Washington
 N523AS Boeing 737-800 Completed 5388 km
2026-08-10 19:59 UTC ASA4 DCA → DCA
Washington → Washington
 N565AS Boeing 737-800 Completed ~0 km est. (0 km recorded)
2026-08-10 19:58 UTC ASA4 DCA → DCA
Washington → Washington
 N565AS Boeing 737-800 Completed ~1 km est. (0 km recorded)

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