Alaska Airlines AS643 Flight Status Today

Domestic flight Alaska Airlines AS643 takes off from Denver (DEN) United States to Seattle (SEA) United States. It's operated by Alaska Airlines. The plane leaves Denver International Airport at 07:00 21 March 2026 America/Denver. The flight is expected to land at Seattle International Airport at 09:10 21 March 2026 America/Los_Angeles. The flight will last about 3 hours 10 minutes.

Current status of AS643 is Departed On time Estimated Arrival in 2 hours, 30 minutes

AS643 - ASA643 Alaska Airlines (AS)
DEN Denver United States
Flight DEN to SEA
SEA Seattle United States
Departed On time Estimated Arrival in 2 hours, 30 minutes
Departure Denver International Airport
IATA: DENICAO: KDEN
Scheduled 07:00 21 March 2026
Actual 07:13 21 March 2026
None A44
Arrival Seattle International Airport
IATA: SEAICAO: KSEA
Scheduled 09:10 21 March 2026
Estimated 09:13 21 March 2026
None N9
AS643 Detail
  • Type: Domestic Flight
  • Code Shares: HA 4868, JL 6365, KE 6122, QR 2036
  • Flight Duration: 3 hours 10 minutes
  • Flight Distance: 1648 kms / 1024 miles
Airline
  • Alaska Airlines
  • IATA: AS
  • ICAO: ASA
  • Operating Days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Passenger Services
  • Service type: Normal passenger
  • Seats: 178
  • Freight capacity: 9 tons
  • Passenger classes: First Class, Economy, Shuttle
More Detail
  • Aircraft: Boeing 737-900 Passenger (Scimitar Winglets)
  • Callsign: F-KBJC1
  • Departure Timezone: America/Denver
  • Arrival Timezone: America/Los_Angeles
  • Current Time in Denver: Saturday 2026-03-21 07:43 AM
  • Current Time in Seattle: Saturday 2026-03-21 06:43 AM

Alaska Airlines AS643 Flight Statistics

Alaska Airlines
Alaska Airlines
FLIGHT NO AS643
AIRPLANE Boeing 737-900 Passenger (Scimitar Winglets)
ON TIME 11
DELAYED 3
CANCELLED 0
ON TIME 24
DELAYED 4
CANCELLED 0
ON TIME 44
DELAYED 7
CANCELLED 1
ON TIME 69
DELAYED 9
CANCELLED 2
Last 14 days flight data
14 30 60 90
On Time Rate

Alaska Airlines AS643 Flight Schedule and Histories

Time Departure Arrival Actual departure Actual arrival
Tue 17 Mar
Scheduled On time
Denver (DEN) 2026-03-17T07:00
Seattle (SEA) 2026-03-17T09:10
Fri 06 Mar
Scheduled On time
Denver (DEN) 2026-03-06T07:00
Seattle (SEA) 2026-03-06T09:10
Sat 28 Feb
Departed On time
Denver (DEN) 2026-02-28T07:00
Seattle (SEA) 2026-02-28T09:10
2026-02-28T06:50
Tue 24 Feb
Arrived On time
Denver (DEN) 2026-02-24T07:00
Seattle (SEA) 2026-02-24T09:10
2026-02-24T06:59
2026-02-24T09:09
Sat 21 Feb
Arrived On time
Denver (DEN) 2026-02-21T07:00
Seattle (SEA) 2026-02-21T09:10
2026-02-21T07:05
2026-02-21T09:18
Wed 18 Feb
Arrived On time
Denver (DEN) 2026-02-18T07:00
Seattle (SEA) 2026-02-18T09:10
2026-02-18T06:56
2026-02-18T08:45
Tue 17 Feb
Scheduled On time
Denver (DEN) 2026-02-17T07:00
Seattle (SEA) 2026-02-17T09:10
Sat 07 Feb
Arrived On time
Denver (DEN) 2026-02-07T07:00
Seattle (SEA) 2026-02-07T09:11
2026-02-07T06:57
2026-02-07T08:49
Wed 04 Feb
Arrived On time
Denver (DEN) 2026-02-04T07:00
Seattle (SEA) 2026-02-04T09:11
2026-02-04T06:51
2026-02-04T08:56
Tue 03 Feb
Arrived On time
Denver (DEN) 2026-02-03T07:00
Seattle (SEA) 2026-02-03T09:11
2026-02-03T06:50
2026-02-03T08:54

Flight routes similar to Alaska Airlines AS643

Airline Flight no Departure Arrival
United Airlines UA2013
United Airlines 		21/03/2026
16:04 		0 minutes
18:04
Alaska Airlines AS785
Alaska Airlines 		21/03/2026
19:24 		3 hours 6 minutes
21:33
United Airlines UA486
United Airlines 		21/03/2026
19:14 		0 minutes
21:14
Icelandair FI7694
Icelandair 		21/03/2026
11:47 		2 hours 53 minutes
13:53
WestJet WS7139
WestJet 		21/03/2026
06:30 		3 hours 4 minutes
08:38
Delta DL3675
Delta 		21/03/2026
13:10 		3 hours 11 minutes
15:21
United Airlines UA2651
United Airlines 		21/03/2026
20:54 		3 hours 5 minutes
22:59
United Airlines UA1424
United Airlines 		21/03/2026
11:42 		3 hours 4 minutes
13:46

Alaska Airlines Flight AS643 FAQs

What is the scheduled flight duration for Alaska Airlines AS643 flight?

On average, nonstop flight takes 3 hour(s) 10 minutes, with the flight distance of 1648 km (1024 miles).

What is the current status of Alaska Airlines AS643 flight?

The current status of flight Alaska Airlines AS643 is Departed On time.

What type of aircraft is used for the Alaska Airlines AS643 flight?

All Alaska Airlines AS643 flights are operated using Boeing 737-900 Passenger (Scimitar Winglets) aircraft.

How many Alaska Airlines AS643 flights are operated a week?

7 flights per week. The Flight Alaska Airlines AS643 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday .