AS4221 Flight Status Alaska Airlines: Washington to Louisville (ASA4221)

Are you looking for the November 9th, 2026 AS 4221 Chicago to Boise flight? Go to our AS4221 Chicago to Boise Flight Status page >

AS 4221 Washington to Louisville Flight Status

Not scheduled today (November 9th, 2026). Latest flight: August 7th, 2026 ; recent history is in the table below.

AS 4221 Flight Status & Schedule Alaska Airlines Washington to Louisville

Date From To Departure Arrival Status Details
Aug 07 DCA SDF 19:45 21:38 Scheduled Track >
Aug 06 DCA SDF 19:45 21:38 Scheduled Track >
Aug 05 DCA SDF 19:45 21:38 Delayed Track >

Alaska Airlines flight AS 4221 links Washington and Louisville, 760 km (472 mi) apart. The timetable allows 1 h 53 min; there is not enough recent history yet to say how long it usually takes. It is not flying today; the last flight was scheduled on 7 August 2026.

< All Washington DCA Departures All Louisville SDF Arrivals >

About AS 4221

Route
Washington Ronald Reagan National Airport DCA to Louisville International Airport SDF
Distance
760 km (472 mi)
Scheduled flight time
1 h 53 min
Usually departs from
Terminal 2

AS 4221 FAQ

How long is the AS4221 flight?
The timetable allows 1 h 53 min. Washington to Louisville is 760 km (472 mi).
Which terminal does AS4221 use?
It usually leaves from Terminal 2 at Washington Ronald Reagan National Airport (DCA). Check the flight card above for today's terminal and gate.
What other flight numbers does AS4221 have?
Also listed as ASA4221 (Alaska Airlines' ICAO code) and AS 4221.

AS4221 and Washington DCA to Louisville SDF Flights

Flight AS4221 is a code-share Alaska Airlines flight of the Republic Airlines operated YX4672.

Other flights departing from Washington DCA: YX4672, AA5044, AA5544

Other flights arriving at Louisville SDF: UA3512, YX4672, DL5636

All flights connecting Washington DCA to Louisville SDF.