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 18 January 2026 America/Denver. The flight is expected to land at Seattle International Airport at 09:11 18 January 2026 America/Los_Angeles. The flight will last about 3 hours 11 minutes.

Current status of AS643 is Scheduled On time Estimated Depart in 2 hours, 32 minutes

AS643 - ASA643 Alaska Airlines (AS)
DEN Denver United States
Flight DEN to SEA
SEA Seattle United States
Scheduled On time Estimated Depart in 2 hours, 32 minutes
Departure Denver International Airport
IATA: DENICAO: KDEN
Scheduled 07:00 18 January 2026
Estimated 07:00 18 January 2026
None A44
Arrival Seattle International Airport
IATA: SEAICAO: KSEA
Scheduled 09:11 18 January 2026
Estimated 09:02 18 January 2026
None C17
AS643 Detail
  • Type: Domestic Flight
  • Code Shares: FI 7694, HA 4863, JL 6365, KE 6122, QR 2036, TN 2332
  • Flight Duration: 3 hours 11 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 737MAX 9 Passenger
  • Callsign: F-KBJC1
  • Departure Timezone: America/Denver
  • Arrival Timezone: America/Los_Angeles
  • Current Time in Denver: Sunday 2026-01-18 04:28 AM
  • Current Time in Seattle: Sunday 2026-01-18 03:28 AM

Alaska Airlines AS643 Flight Statistics

Alaska Airlines
Alaska Airlines
FLIGHT NO AS643
AIRPLANE Boeing 737MAX 9 Passenger
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
Fri 16 Jan
Departed On time
Denver (DEN) 2026-01-16T07:00
Seattle (SEA) 2026-01-16T09:11
2026-01-16T06:54
Fri 09 Jan
Scheduled On time
Denver (DEN) 2026-01-09T07:00
Seattle (SEA) 2026-01-09T09:11
Sun 04 Jan
Diverted to DEN Denver
Denver (DEN) 2026-01-04T08:00
Seattle (SEA) 2026-01-04T10:08
2026-01-04T08:00
2026-01-04T08:09
Fri 02 Jan
Arrived On time
Denver (DEN) 2026-01-02T08:00
Seattle (SEA) 2026-01-02T10:08
2026-01-02T07:59
2026-01-02T09:49
Tue 30 Dec
Arrived On time
Denver (DEN) 2025-12-30T08:00
Seattle (SEA) 2025-12-30T10:08
2025-12-30T07:52
2025-12-30T09:44
Mon 29 Dec
Arrived On time
Denver (DEN) 2025-12-29T08:00
Seattle (SEA) 2025-12-29T10:08
2025-12-29T08:02
2025-12-29T10:01
Sun 28 Dec
Departed Delayed by 31m
Denver (DEN) 2025-12-28T08:00
Seattle (SEA) 2025-12-28T10:08
2025-12-28T08:35
Sat 27 Dec
Arrived On time
Denver (DEN) 2025-12-27T08:00
Seattle (SEA) 2025-12-27T10:08
2025-12-27T07:59
2025-12-27T09:52
Tue 25 Nov
Scheduled On time
Denver (DEN) 2025-11-25T06:14
Seattle (SEA) 2025-11-25T08:26
Mon 24 Nov
Arrived On time
Denver (DEN) 2025-11-24T06:14
Seattle (SEA) 2025-11-24T08:26
2025-11-24T06:38
2025-11-24T08:40

Flight routes similar to Alaska Airlines AS643

Airline Flight no Departure Arrival
SkyWest Airlines OO3696
SkyWest Airlines 		18/01/2026
18:50 		3 hours 20 minutes
21:10
Southwest Airlines WN1603
Southwest Airlines 		18/01/2026
14:50 		0 minutes
16:50
Air Tahiti Nui TN2332
Air Tahiti Nui 		18/01/2026
07:00 		3 hours 11 minutes
09:11
Alaska Airlines AS785
Alaska Airlines 		18/01/2026
17:09 		3 hours 6 minutes
19:15
WestJet WS7139
WestJet 		18/01/2026
06:29 		3 hours 11 minutes
08:40
Virgin Atlantic VS2069
Virgin Atlantic 		18/01/2026
06:29 		3 hours 11 minutes
08:40
United Airlines UA2271
United Airlines 		18/01/2026
07:45 		3 hours 10 minutes
09:55
Delta DL3696
Delta 		18/01/2026
18:50 		3 hours 20 minutes
21:10

Alaska Airlines Flight AS643 FAQs

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

On average, nonstop flight takes 3 hour(s) 11 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 Scheduled On time.

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

All Alaska Airlines AS643 flights are operated using Boeing 737MAX 9 Passenger 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 .