Alaska Airlines flight AS 4273: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 08:30 Phoenix Sky Harbor (PHX) 4 15:28 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 3:58 Effective 2025-10-26 through 2025-11-01
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 09:21 Los Angeles (LAX) 14:30 Tulsa (TUL)
AS 4273 Non-stop Canadair CRJ 700 (CR7) 3:09 Effective 2026-01-06 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 4890)
Daily 09:30 Phoenix Sky Harbor (PHX) 4 15:25 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2025-11-02 through 2025-12-02
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 09:30 Phoenix Sky Harbor (PHX) 4 15:26 Detroit (DTW) E
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 3:56 Effective 2025-12-03 through 2025-12-17
Codeshare flight, operated by American Airlines.(AA 1673)
Thu,Fri 09:40 Chicago O'Hare (ORD) 3 11:54 Fort Wayne (FWA)
AS 4273 Non-stop Canadair CRJ 700 (CR7) 1:14 Effective 2025-12-18 through 2025-12-19
Codeshare flight, operated by American Airlines.(AA 6426)
Daily 10:30 Philadelphia (PHL) 12:00 Portland (PWM)
AS 4273 Non-stop Airbus A319 (319) 1:30 Effective 2025-08-06 through 2025-09-02
Codeshare flight, operated by American Airlines.(AA 2158)
Daily 11:04 Phoenix Sky Harbor (PHX) 4 16:53 Detroit (DTW) E
AS 4273 Non-stop Boeing 737-800 (738) 3:49 Effective from 2026-02-12
Codeshare flight, operated by American Airlines.(AA 1673)
Sun 11:40 Denver (DEN) 13:28 Los Angeles (LAX)
AS 4273 Non-stop Embraer EMB 175 (E75) 2:48 Operates only on 2025-07-06
Codeshare flight, operated by American Airlines.(AA 6400)
Daily 18:25 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737-800 (738) 4:30 Effective from 2026-02-12
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 18:27 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:28 Effective 2025-11-02 through 2025-12-02
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 18:31 Detroit (DTW) E 20:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:24 Effective 2025-12-03 through 2025-12-17
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 18:32 Detroit (DTW) E 19:55 Phoenix Sky Harbor (PHX) 4
AS 4273 Non-stop Boeing 737 MAX 8 (7M8) 4:23 Effective 2025-10-26 through 2025-11-01
Codeshare flight, operated by American Airlines.(AA 1673)
Sat 18:34 Sacramento (SMF) A 20:11 Los Angeles (LAX)
AS 4273 Non-stop Embraer EMB 175 (E75) 1:37 Effective 2025-07-12 through 2025-08-02
Codeshare flight, operated by American Airlines.(AA 6446)
Sat 18:35 Philadelphia (PHL) 21:19 Orlando (MCO) B
AS 4273 Non-stop Boeing 737-800 (738) 2:44 Effective 2025-05-10 through 2025-05-31
Codeshare flight, operated by American Airlines.(AA 2719)
Mon-Fri,Sun 19:07 Chicago O'Hare (ORD) 3 22:17 Baltimore (BWI)
AS 4273 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:10 Effective 2025-07-07 through 2025-08-04
Codeshare flight, operated by American Airlines.(AA 4253)
Mon-Fri,Sun 19:08 Philadelphia (PHL) 21:58 Orlando (MCO) B
AS 4273 Non-stop Boeing 737-800 (738) 2:50 Effective 2025-05-05 through 2025-06-04
Codeshare flight, operated by American Airlines.(AA 1673)
Mon-Fri,Sun 19:10 Philadelphia (PHL) 21:56 Orlando (MCO) B
AS 4273 Non-stop Boeing 737-800 (738) 2:46 Valid until 2025-05-04
Codeshare flight, operated by American Airlines.(AA 1673)
Daily 19:15 Philadelphia (PHL) 20:52 Raleigh/Durham (RDU) 2
AS 4273 Non-stop Airbus A319 (319) 1:37 Effective 2025-06-05 through 2025-07-03
Codeshare flight, operated by American Airlines.(AA 3310)
Fri 19:15 Philadelphia (PHL) 20:52 Raleigh/Durham (RDU) 2
AS 4273 Non-stop Airbus A320 (320) 1:37 Operates only on 2025-07-04
Codeshare flight, operated by American Airlines.(AA 3310)
Sat 19:15 Philadelphia (PHL) 21:00 Raleigh/Durham (RDU) 2
AS 4273 Non-stop Airbus A320 (320) 1:45 Operates only on 2025-07-05
Codeshare flight, operated by American Airlines.(AA 3310)
Daily 22:40 Dallas Fort Worth (DFW) E 23:32 Tyler (TYR)
AS 4273 Non-stop Canadair CRJ 700 (CR7) 0:52 Effective 2025-12-20 through 2026-01-05
Codeshare flight, operated by American Airlines.(AA 6350)
Daily 23:00 San Diego (SAN) 2 06:59 Miami (MIA)
AS 4273 Non-stop Airbus A321neo (32Q) 4:59 Effective 2025-09-03 through 2025-10-05
Codeshare flight, operated by American Airlines.(AA 1673)
The flight arrives 1 day after departure.
Daily 23:00 San Diego (SAN) 2 06:50 Miami (MIA)
AS 4273 Non-stop Airbus A321neo (32Q) 4:50 Effective 2025-10-06 through 2025-10-25
Codeshare flight, operated by American Airlines.(AA 1673)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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

15:28
Detroit (DTW) E
Effective 2025-10-26 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 3:58, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
09:21
Los Angeles (LAX)

14:30
Tulsa (TUL)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4890)
Duration: 3:09, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4273
09:30
Phoenix Sky Harbor (PHX) 4

15:25
Detroit (DTW) E
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
09:30
Phoenix Sky Harbor (PHX) 4

15:26
Detroit (DTW) E
Effective 2025-12-03 through 2025-12-17
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
09:40
Chicago O'Hare (ORD) 3

11:54
Fort Wayne (FWA)
Effective 2025-12-18 through 2025-12-19
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 6426)
Duration: 1:14, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4273
10:30
Philadelphia (PHL)

12:00
Portland (PWM)
Effective 2025-08-06 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2158)
Duration: 1:30, non-stop
Airbus A319 (319)
Alaska Airlines AS4273
11:04
Phoenix Sky Harbor (PHX) 4

16:53
Detroit (DTW) E
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 3:49, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
11:40
Denver (DEN)

13:28
Los Angeles (LAX)
Operates only on 2025-07-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 6400)
Duration: 2:48, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4273
18:25
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:30, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
18:27
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:28, non-stop
Boeing 737 MAX 8 (7M8)
Alaska Airlines AS4273
18:31
Detroit (DTW) E

20:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-03 through 2025-12-17
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
18:32
Detroit (DTW) E

19:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-10-26 through 2025-11-01
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
18:34
Sacramento (SMF) A

20:11
Los Angeles (LAX)
Effective 2025-07-12 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 6446)
Duration: 1:37, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4273
18:35
Philadelphia (PHL)

21:19
Orlando (MCO) B
Effective 2025-05-10 through 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2719)
Duration: 2:44, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
19:07
Chicago O'Hare (ORD) 3

22:17
Baltimore (BWI)
Effective 2025-07-07 through 2025-08-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 4253)
Duration: 2:10, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4273
19:08
Philadelphia (PHL)

21:58
Orlando (MCO) B
Effective 2025-05-05 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 2:50, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
19:10
Philadelphia (PHL)

21:56
Orlando (MCO) B
Valid until 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 2:46, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4273
19:15
Philadelphia (PHL)

20:52
Raleigh/Durham (RDU) 2
Effective 2025-06-05 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3310)
Duration: 1:37, non-stop
Airbus A319 (319)
Alaska Airlines AS4273
19:15
Philadelphia (PHL)

20:52
Raleigh/Durham (RDU) 2
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3310)
Duration: 1:37, non-stop
Airbus A320 (320)
Alaska Airlines AS4273
19:15
Philadelphia (PHL)

21:00
Raleigh/Durham (RDU) 2
Operates only on 2025-07-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3310)
Duration: 1:45, non-stop
Airbus A320 (320)
Alaska Airlines AS4273
22:40
Dallas Fort Worth (DFW) E

23:32
Tyler (TYR)
Effective 2025-12-20 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6350)
Duration: 0:52, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4273
23:00
San Diego (SAN) 2

06:59(+1)
Miami (MIA)
Effective 2025-09-03 through 2025-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:59, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
Alaska Airlines AS4273
23:00
San Diego (SAN) 2

06:50(+1)
Miami (MIA)
Effective 2025-10-06 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1673)
Duration: 4:50, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Baltimore (BWI)
  • Chicago O'Hare (ORD) - Fort Wayne (FWA)
  • Dallas Fort Worth (DFW) - Tyler (TYR)
  • Denver (DEN) - Los Angeles (LAX)
  • Detroit (DTW) - Phoenix Sky Harbor (PHX)
  • Los Angeles (LAX) - Tulsa (TUL)
  • Philadelphia (PHL) - Orlando (MCO)
  • Philadelphia (PHL) - Portland (PWM)
  • Philadelphia (PHL) - Raleigh/Durham (RDU)
  • Sacramento (SMF) - Los Angeles (LAX)
  • San Diego (SAN) - Miami (MIA)
All Alaska Airlines flights
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