Hawaiian Airlines flight HA 6603: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Wed 20:00 Seattle-Tacoma (SEA) 22:56 Phoenix Sky Harbor (PHX) 3
HA 6603 Non-stop Boeing 737 (737) 2:56 Operates only on 2026-03-18
Codeshare flight, operated by Alaska Airlines.(AS 1433)
Daily 20:00 Seattle-Tacoma (SEA) 22:51 Phoenix Sky Harbor (PHX) 3
HA 6603 Non-stop Boeing 737 (737) 2:51 Effective 2026-03-19 through 2026-03-29
Codeshare flight, operated by Alaska Airlines.(AS 1433)
Mon,Wed 20:05 Seattle-Tacoma (SEA) 23:01 Phoenix Sky Harbor (PHX) 3
HA 6603 Non-stop Boeing 737 MAX 9 (7M9) 2:56 Effective 2026-03-11 through 2026-03-16
Codeshare flight, operated by Alaska Airlines.(AS 1433)
Tue,Thu,Fri,Sun 20:05 Seattle-Tacoma (SEA) 23:01 Phoenix Sky Harbor (PHX) 3
HA 6603 Non-stop Boeing 737 (737) 2:56 Effective 2026-03-12 through 2026-03-17
Codeshare flight, operated by Alaska Airlines.(AS 1433)
Mon,Wed,Fri,Sat 20:17 Seattle-Tacoma (SEA) 23:59 Denver (DEN)
HA 6603 Non-stop Boeing 737 (737) 2:42 Valid until 2026-01-05
Codeshare flight, operated by Alaska Airlines.(AS 787)
Tue,Thu,Sun 20:17 Seattle-Tacoma (SEA) 23:59 Denver (DEN)
HA 6603 Non-stop Boeing 737 MAX 9 (7M9) 2:42 Valid until 2026-01-06
Codeshare flight, operated by Alaska Airlines.(AS 787)
Daily 20:59 Seattle-Tacoma (SEA) 23:50 Phoenix Sky Harbor (PHX) 3
HA 6603 Non-stop Boeing 737 (737) 2:51 Effective 2026-03-30 through 2026-04-21
Codeshare flight, operated by Alaska Airlines.(AS 1433)
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This flight number is listed as serving the following routes:
Hawaiian Airlines flight HA 6603: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:

Hawaiian Airlines HA6603
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 1433)
Duration: 2:56, non-stop
Boeing 737 (737)

Direct Codeshare Flights:

Hawaiian Airlines HA6603
Effective 2026-03-19 through 2026-03-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1433)
Duration: 2:51, non-stop
Boeing 737 (737)

Direct Codeshare Flights:

Hawaiian Airlines HA6603
Effective 2026-03-11 through 2026-03-16
Mon
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 1433)
Duration: 2:56, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Hawaiian Airlines HA6603
Effective 2026-03-12 through 2026-03-17
Mon
-
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1433)
Duration: 2:56, non-stop
Boeing 737 (737)

Direct Codeshare Flights:

Hawaiian Airlines HA6603
Valid until 2026-01-05
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by Alaska Airlines. (AS 787)
Duration: 2:42, non-stop
Boeing 737 (737)

Direct Codeshare Flights:

Hawaiian Airlines HA6603
Valid until 2026-01-06
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Codeshare flight, operated by Alaska Airlines. (AS 787)
Duration: 2:42, non-stop
Boeing 737 MAX 9 (7M9)

Direct Codeshare Flights:

Hawaiian Airlines HA6603
Effective 2026-03-30 through 2026-04-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by Alaska Airlines. (AS 1433)
Duration: 2:51, non-stop
Boeing 737 (737)
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This flight number is listed as serving the following routes:
  • Seattle-Tacoma (SEA) - Denver (DEN)
  • Seattle-Tacoma (SEA) - Phoenix Sky Harbor (PHX)