Alaska Airlines flight AS 4273: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 08:30 Phoenix Sky Harbor (PHX) 4 15:24 Detroit (DTW) E
AS 4273 Non-stop Boeing 737-800 (738) 3:54 Effective 2025-03-09 through 2025-04-03
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 08:30 Phoenix Sky Harbor (PHX) 4 15:34 Detroit (DTW) E
AS 4273 Non-stop Boeing 737-800 (738) 4:04 Effective 2025-04-04 through 2025-05-04
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 08:30 Phoenix Sky Harbor (PHX) 4 15:31 Detroit (DTW) E
AS 4273 Non-stop Boeing 737-800 (738) 4:01 Effective 2025-05-05 through 2025-06-04
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 08:30 Phoenix Sky Harbor (PHX) 4 15:30 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective from 2025-06-05
Codeshare flight, operated by American Airlines.(AA 1673)
Mon,Thu,Fri,Sun 09:00 Phoenix Sky Harbor (PHX) 4 16:01 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:01 Effective 2024-09-05 through 2024-10-06
Codeshare flight, operated by American Airlines.(AA 1673)
Mon,Wed-Fri,Sun 09:04 Phoenix Sky Harbor (PHX) 4 16:00 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 3:56 Effective 2024-10-07 through 2024-10-28
Codeshare flight, operated by American Airlines.(AA 1673)
Fri 09:04 Phoenix Sky Harbor (PHX) 4 16:00 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 3:56 Operates only on 2024-11-01
Codeshare flight, operated by American Airlines.(AA 1673)
Thu,Fri 09:30 Phoenix Sky Harbor (PHX) 4 15:25 Detroit (DTW) E
AS 4273 Non-stop Airbus A320 (320) 3:55 Effective 2024-11-28 through 2024-11-29
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 09:30 Phoenix Sky Harbor (PHX) 4 15:28 Detroit (DTW) E
AS 4273 Non-stop Boeing 737-800 (738) 3:58 Effective 2024-12-05 through 2024-12-18
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 09:30 Phoenix Sky Harbor (PHX) 4 15:23 Detroit (DTW) E
AS 4273 Non-stop Airbus A321 (321) 3:53 Effective 2024-12-19 through 2025-01-06
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 09:30 Phoenix Sky Harbor (PHX) 4 15:32 Detroit (DTW) E
AS 4273 Non-stop Boeing 737-800 (738) 4:02 Effective 2025-01-07 through 2025-02-12
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 09:30 Phoenix Sky Harbor (PHX) 4 15:19 Detroit (DTW) E
AS 4273 Non-stop Boeing 737-800 (738) 3:49 Effective 2025-02-13 through 2025-03-05
Codeshare flight, operated by American Airlines.(AA 1728)
Thu-Sat 09:30 Phoenix Sky Harbor (PHX) 4 15:24 Detroit (DTW) E
AS 4273 Non-stop Boeing 737-800 (738) 3:54 Effective 2025-03-06 through 2025-03-08
Codeshare flight, operated by American Airlines.(AA 1728)
Sun 10:04 Phoenix Sky Harbor (PHX) 4 15:57 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 3:53 Operates only on 2024-11-03
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 10:15 Phoenix Sky Harbor (PHX) 4 16:10 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2024-11-05 through 2024-11-27
Codeshare flight, operated by American Airlines.(AA 1728)
Mon-Wed,Sat,Sun 10:15 Phoenix Sky Harbor (PHX) 4 16:10 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2024-11-30 through 2024-12-04
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 17:00 Los Angeles (LAX) 22:42 Saint Louis (STL) 1
AS 4273 Non-stop Airbus A319 (319) 3:42 Valid until 2024-09-03
Codeshare flight, operated by American Airlines.(AA 2277)
Sat 17:30 Los Angeles (LAX) 23:08 Saint Louis (STL) 1
AS 4273 Non-stop Airbus A319 (319) 3:38 Effective 2024-09-07 through 2024-09-28
Codeshare flight, operated by American Airlines.(AA 2277)
Mon,Wed-Fri,Sun 17:55 Detroit (DTW) E 20:23 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:28 Effective 2024-11-06 through 2024-11-22
Codeshare flight, operated by American Airlines.(AA 1728)
Mon-Wed,Sat,Sun 17:55 Detroit (DTW) E 20:23 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:28 Effective 2024-11-23 through 2024-12-04
Codeshare flight, operated by American Airlines.(AA 1728)
Sun 18:06 Detroit (DTW) E 20:29 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:23 Operates only on 2024-11-03
Codeshare flight, operated by American Airlines.(AA 1673)
Mon,Wed-Fri,Sun 18:10 Detroit (DTW) E 19:34 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:24 Effective 2024-10-07 through 2024-10-28
Codeshare flight, operated by American Airlines.(AA 1673)
Fri 18:10 Detroit (DTW) E 19:34 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:24 Operates only on 2024-11-01
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 18:15 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737-800 (738) 4:40 Effective 2025-02-13 through 2025-03-05
Codeshare flight, operated by American Airlines.(AA 1728)
Mon,Thu,Fri,Sun 18:16 Detroit (DTW) E 19:30 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:14 Effective 2024-09-05 through 2024-10-06
Codeshare flight, operated by American Airlines.(AA 1673)
Fri 18:26 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Airbus A320 (320) 4:29 Operates only on 2024-11-29
Codeshare flight, operated by American Airlines.(AA 1728)
Mon,Thu-Sun 18:26 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Airbus A321 (321) 4:29 Effective 2024-12-19 through 2024-12-30
Codeshare flight, operated by American Airlines.(AA 1728)
Mon,Wed-Sun 18:26 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Airbus A321 (321) 4:29 Effective 2025-01-01 through 2025-01-06
Codeshare flight, operated by American Airlines.(AA 1728)
Thu-Sat 18:26 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737-800 (738) 4:29 Effective 2025-03-06 through 2025-03-08
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 18:26 Detroit (DTW) E 19:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737-800 (738) 4:29 Effective 2025-03-09 through 2025-04-03
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 18:28 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737-800 (738) 4:27 Effective 2024-12-05 through 2024-12-18
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 18:31 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737-800 (738) 4:24 Effective 2025-01-07 through 2025-02-12
Codeshare flight, operated by American Airlines.(AA 1728)
Daily 18:36 Detroit (DTW) E 19:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737-800 (738) 4:19 Effective 2025-05-05 through 2025-06-04
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 18:40 Detroit (DTW) E 19:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737-800 (738) 4:15 Effective 2025-04-04 through 2025-05-04
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 18:44 Detroit (DTW) E 19:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:11 Effective from 2025-06-05
Codeshare flight, operated by American Airlines.(AA 1673)
This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4273: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4273
08:30
Phoenix Sky Harbor (PHX) 4

15:24
Detroit (DTW) E
Effective 2025-03-09 through 2025-04-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 3:54, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
08:30
Phoenix Sky Harbor (PHX) 4

15:34
Detroit (DTW) E
Effective 2025-04-04 through 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:04, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
08:30
Phoenix Sky Harbor (PHX) 4

15:31
Detroit (DTW) E
Effective 2025-05-05 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:01, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
08:30
Phoenix Sky Harbor (PHX) 4

15:30
Detroit (DTW) E
Effective from 2025-06-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
09:00
Phoenix Sky Harbor (PHX) 4

16:01
Detroit (DTW) E
Effective 2024-09-05 through 2024-10-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:01, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
09:04
Phoenix Sky Harbor (PHX) 4

16:00
Detroit (DTW) E
Effective 2024-10-07 through 2024-10-28
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 3:56, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
09:04
Phoenix Sky Harbor (PHX) 4

16:00
Detroit (DTW) E
Operates only on 2024-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 3:56, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
09:30
Phoenix Sky Harbor (PHX) 4

15:25
Detroit (DTW) E
Effective 2024-11-28 through 2024-11-29
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 3:55, non-stop
Airbus A320 (320)
Alaska Airlines AS4273
09:30
Phoenix Sky Harbor (PHX) 4

15:28
Detroit (DTW) E
Effective 2024-12-05 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 3:58, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
09:30
Phoenix Sky Harbor (PHX) 4

15:23
Detroit (DTW) E
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 3:53, non-stop
Airbus A321 (321)
Alaska Airlines AS4273
09:30
Phoenix Sky Harbor (PHX) 4

15:32
Detroit (DTW) E
Effective 2025-01-07 through 2025-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:02, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
09:30
Phoenix Sky Harbor (PHX) 4

15:19
Detroit (DTW) E
Effective 2025-02-13 through 2025-03-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 3:49, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
09:30
Phoenix Sky Harbor (PHX) 4

15:24
Detroit (DTW) E
Effective 2025-03-06 through 2025-03-08
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 3:54, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
10:04
Phoenix Sky Harbor (PHX) 4

15:57
Detroit (DTW) E
Operates only on 2024-11-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 3:53, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
10:15
Phoenix Sky Harbor (PHX) 4

16:10
Detroit (DTW) E
Effective 2024-11-05 through 2024-11-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
10:15
Phoenix Sky Harbor (PHX) 4

16:10
Detroit (DTW) E
Effective 2024-11-30 through 2024-12-04
Mon
Tue
Wed
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
17:00
Los Angeles (LAX)

22:42
Saint Louis (STL) 1
Valid until 2024-09-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2277)
Duration: 3:42, non-stop
Airbus A319 (319)
Alaska Airlines AS4273
17:30
Los Angeles (LAX)

23:08
Saint Louis (STL) 1
Effective 2024-09-07 through 2024-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2277)
Duration: 3:38, non-stop
Airbus A319 (319)
Alaska Airlines AS4273
17:55
Detroit (DTW) E

20:23
Phoenix Sky Harbor (PHX) 4
Effective 2024-11-06 through 2024-11-22
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:28, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
17:55
Detroit (DTW) E

20:23
Phoenix Sky Harbor (PHX) 4
Effective 2024-11-23 through 2024-12-04
Mon
Tue
Wed
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:28, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
18:06
Detroit (DTW) E

20:29
Phoenix Sky Harbor (PHX) 4
Operates only on 2024-11-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:23, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
18:10
Detroit (DTW) E

19:34
Phoenix Sky Harbor (PHX) 4
Effective 2024-10-07 through 2024-10-28
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:24, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
18:10
Detroit (DTW) E

19:34
Phoenix Sky Harbor (PHX) 4
Operates only on 2024-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:24, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
18:15
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-02-13 through 2025-03-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:40, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
18:16
Detroit (DTW) E

19:30
Phoenix Sky Harbor (PHX) 4
Effective 2024-09-05 through 2024-10-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:14, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
18:26
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Operates only on 2024-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:29, non-stop
Airbus A320 (320)
Alaska Airlines AS4273
18:26
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Effective 2024-12-19 through 2024-12-30
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:29, non-stop
Airbus A321 (321)
Alaska Airlines AS4273
18:26
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-01-01 through 2025-01-06
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:29, non-stop
Airbus A321 (321)
Alaska Airlines AS4273
18:26
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-03-06 through 2025-03-08
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:29, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
18:26
Detroit (DTW) E

19:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-03-09 through 2025-04-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:29, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
18:28
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Effective 2024-12-05 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:27, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
18:31
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-01-07 through 2025-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1728)
Duration: 4:24, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
18:36
Detroit (DTW) E

19:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-05-05 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:19, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
18:40
Detroit (DTW) E

19:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-04-04 through 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:15, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
18:44
Detroit (DTW) E

19:55
Phoenix Sky Harbor (PHX) 4
Effective from 2025-06-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:11, non-stop
Boeing 737 MAX 8 (7M8)
This flight number is listed as serving the following routes:
  • Detroit (DTW) - Phoenix Sky Harbor (PHX)
  • Los Angeles (LAX) - Saint Louis (STL)
All Alaska Airlines flights
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