Alaska Airlines flight AS 4666: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 05:30 Detroit (DTW) E 05:58 Chicago O'Hare (ORD) 3
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:28 Effective 2025-08-06 through 2025-09-02
Codeshare flight, operated by American Airlines.(AA 6289)
Mon-Sat 06:32 Philadelphia (PHL) F 08:04 Raleigh/Durham (RDU) 2
AS 4666 Non-stop Embraer ERJ 145 (ER4) 1:32 Effective 2025-05-05 through 2025-05-10
Codeshare flight, operated by American Airlines.(AA 5724)
Sat 06:32 Philadelphia (PHL) F 08:04 Raleigh/Durham (RDU) 2
AS 4666 Non-stop Embraer ERJ 145 (ER4) 1:32 Effective 2025-05-17 through 2025-05-31
Codeshare flight, operated by American Airlines.(AA 5724)
Mon-Wed,Sun 06:32 Philadelphia (PHL) F 08:04 Raleigh/Durham (RDU) 2
AS 4666 Non-stop Embraer ERJ 145 (ER4) 1:32 Effective 2025-06-01 through 2025-06-04
Codeshare flight, operated by American Airlines.(AA 5724)
Tue 08:15 Phoenix Sky Harbor (PHX) 4 10:01 Salt Lake City (SLC)
AS 4666 Non-stop Airbus A319 (319) 1:46 Operates only on 2026-01-06
Codeshare flight, operated by American Airlines.(AA 1743)
Mon-Fri,Sun 08:35 Philadelphia (PHL) F 10:10 Madison (MSN)
AS 4666 Non-stop Embraer ERJ 145 (ER4) 2:35 Effective 2025-05-11 through 2025-05-23
Codeshare flight, operated by American Airlines.(AA 5997)
Mon-Fri 08:35 Philadelphia (PHL) F 10:10 Madison (MSN)
AS 4666 Non-stop Embraer ERJ 145 (ER4) 2:35 Effective 2025-05-26 through 2025-05-30
Codeshare flight, operated by American Airlines.(AA 5997)
Daily 08:45 Detroit (DTW) E 09:10 Chicago O'Hare (ORD) 3
AS 4666 Non-stop Embraer EMB 175 (E75) 1:25 Effective 2025-11-02 through 2025-12-02
Codeshare flight, operated by American Airlines.(AA 3354)
Daily 08:52 Detroit (DTW) E 09:10 Chicago O'Hare (ORD) 3
AS 4666 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:18 Effective from 2026-02-12
Codeshare flight, operated by American Airlines.(AA 3354)
Daily 12:19 Dallas Fort Worth (DFW) 13:39 San Antonio (SAT)
AS 4666 Non-stop Airbus A321 (321) 1:20 Effective 2026-01-07 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 2877)
Tue 12:26 Salt Lake City (SLC) 14:10 Phoenix Sky Harbor (PHX) 4
AS 4666 Non-stop Airbus A319 (319) 1:44 Operates only on 2026-01-06
Codeshare flight, operated by American Airlines.(AA 1743)
Daily 13:52 Detroit (DTW) E 14:20 Chicago O'Hare (ORD) 3
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:28 Effective 2025-10-06 through 2025-11-01
Codeshare flight, operated by American Airlines.(AA 6520)
Daily 14:36 San Antonio (SAT) 15:55 Dallas Fort Worth (DFW)
AS 4666 Non-stop Airbus A321 (321) 1:19 Effective 2026-01-07 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 2877)
Mon,Tue,Fri,Sat 15:34 Dallas Fort Worth (DFW) E 16:48 San Antonio (SAT)
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:14 Valid until 2025-05-03
Codeshare flight, operated by American Airlines.(AA 6207)
Sun 15:34 Dallas Fort Worth (DFW) E 16:48 San Antonio (SAT)
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:14 Operates only on 2025-05-04
Codeshare flight, operated by American Airlines.(AA 6207)
Mon-Fri,Sun 16:15 Traverse City (TVC) 16:39 Chicago O'Hare (ORD) 3
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:24 Effective 2025-09-07 through 2025-09-30
Codeshare flight, operated by American Airlines.(AA 6367)
Wed-Sat 16:35 Sacramento (SMF) A 18:12 Los Angeles (LAX)
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:37 Effective 2025-09-03 through 2025-09-06
Codeshare flight, operated by American Airlines.(AA 6539)
Sat 16:35 Sacramento (SMF) A 18:12 Los Angeles (LAX)
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:37 Effective 2025-09-13 through 2025-09-27
Codeshare flight, operated by American Airlines.(AA 6539)
Wed-Sun 16:35 Sacramento (SMF) A 18:12 Los Angeles (LAX)
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:37 Effective 2025-10-01 through 2025-10-05
Codeshare flight, operated by American Airlines.(AA 6539)
Mon,Tue,Fri,Sat 17:18 San Antonio (SAT) 18:38 Dallas Fort Worth (DFW) E
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:20 Valid until 2025-05-03
Codeshare flight, operated by American Airlines.(AA 6207)
Sun 17:18 San Antonio (SAT) 18:38 Dallas Fort Worth (DFW) E
AS 4666 Non-stop Canadair CRJ 700 (CR7) 1:20 Operates only on 2025-05-04
Codeshare flight, operated by American Airlines.(AA 6207)
Daily 19:03 Chicago O'Hare (ORD) 3 21:40 Cleveland Hopkins (CLE)
AS 4666 Non-stop Embraer EMB 175 (E75) 1:37 Effective 2025-06-07 through 2025-06-30
Codeshare flight, operated by American Airlines.(AA 3375)
Tue,Wed 19:05 Chicago O'Hare (ORD) 3 21:42 Cleveland Hopkins (CLE)
AS 4666 Non-stop Embraer EMB 175 (E75) 1:37 Effective 2025-07-01 through 2025-07-02
Codeshare flight, operated by American Airlines.(AA 3375)
Thu 19:21 Chicago O'Hare (ORD) 3 21:52 Cleveland Hopkins (CLE)
AS 4666 Non-stop Embraer EMB 175 (E75) 1:31 Operates only on 2025-07-03
Codeshare flight, operated by American Airlines.(AA 3375)
Mon-Fri,Sun 21:36 Ronald Reagan Washington (DCA) 2 22:50 Greensboro/High Point (GSO)
AS 4666 Non-stop Embraer EMB 175 (E75) 1:14 Effective 2025-07-06 through 2025-08-05
Codeshare flight, operated by American Airlines.(AA 3740)
Thu,Fri 22:30 Dallas Fort Worth (DFW) 00:22 Nashville (BNA)
AS 4666 Non-stop Boeing 737-800 (738) 1:52 Effective 2025-06-05 through 2025-06-06
Codeshare flight, operated by American Airlines.(AA 1539)
The flight arrives 1 day after departure.
Daily 22:45 Phoenix Sky Harbor (PHX) 4 00:29 Salt Lake City (SLC)
AS 4666 Non-stop Embraer EMB 175 (E75) 1:44 Effective 2025-12-18 through 2026-01-05
Codeshare flight, operated by American Airlines.(AA 6520)
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 4666: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4666
05:30
Detroit (DTW) E

05:58
Chicago O'Hare (ORD) 3
Effective 2025-08-06 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6289)
Duration: 1:28, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
06:32
Philadelphia (PHL) F

08:04
Raleigh/Durham (RDU) 2
Effective 2025-05-05 through 2025-05-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 5724)
Duration: 1:32, non-stop
Embraer ERJ 145 (ER4)
Alaska Airlines AS4666
06:32
Philadelphia (PHL) F

08:04
Raleigh/Durham (RDU) 2
Effective 2025-05-17 through 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 5724)
Duration: 1:32, non-stop
Embraer ERJ 145 (ER4)
Alaska Airlines AS4666
06:32
Philadelphia (PHL) F

08:04
Raleigh/Durham (RDU) 2
Effective 2025-06-01 through 2025-06-04
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 5724)
Duration: 1:32, non-stop
Embraer ERJ 145 (ER4)
Alaska Airlines AS4666
08:15
Phoenix Sky Harbor (PHX) 4

10:01
Salt Lake City (SLC)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 1743)
Duration: 1:46, non-stop
Airbus A319 (319)
Alaska Airlines AS4666
08:35
Philadelphia (PHL) F

10:10
Madison (MSN)
Effective 2025-05-11 through 2025-05-23
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 5997)
Duration: 2:35, non-stop
Embraer ERJ 145 (ER4)
Alaska Airlines AS4666
08:35
Philadelphia (PHL) F

10:10
Madison (MSN)
Effective 2025-05-26 through 2025-05-30
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 5997)
Duration: 2:35, non-stop
Embraer ERJ 145 (ER4)
Alaska Airlines AS4666
08:45
Detroit (DTW) E

09:10
Chicago O'Hare (ORD) 3
Effective 2025-11-02 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3354)
Duration: 1:25, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4666
08:52
Detroit (DTW) E

09:10
Chicago O'Hare (ORD) 3
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3354)
Duration: 1:18, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4666
12:19
Dallas Fort Worth (DFW)

13:39
San Antonio (SAT)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2877)
Duration: 1:20, non-stop
Airbus A321 (321)
Alaska Airlines AS4666
12:26
Salt Lake City (SLC)

14:10
Phoenix Sky Harbor (PHX) 4
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 1743)
Duration: 1:44, non-stop
Airbus A319 (319)
Alaska Airlines AS4666
13:52
Detroit (DTW) E

14:20
Chicago O'Hare (ORD) 3
Effective 2025-10-06 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6520)
Duration: 1:28, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
14:36
San Antonio (SAT)

15:55
Dallas Fort Worth (DFW)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2877)
Duration: 1:19, non-stop
Airbus A321 (321)
Alaska Airlines AS4666
15:34
Dallas Fort Worth (DFW) E

16:48
San Antonio (SAT)
Valid until 2025-05-03
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 6207)
Duration: 1:14, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
15:34
Dallas Fort Worth (DFW) E

16:48
San Antonio (SAT)
Operates only on 2025-05-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 6207)
Duration: 1:14, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
16:15
Traverse City (TVC)

16:39
Chicago O'Hare (ORD) 3
Effective 2025-09-07 through 2025-09-30
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 6367)
Duration: 1:24, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
16:35
Sacramento (SMF) A

18:12
Los Angeles (LAX)
Effective 2025-09-03 through 2025-09-06
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 6539)
Duration: 1:37, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
16:35
Sacramento (SMF) A

18:12
Los Angeles (LAX)
Effective 2025-09-13 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 6539)
Duration: 1:37, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
16:35
Sacramento (SMF) A

18:12
Los Angeles (LAX)
Effective 2025-10-01 through 2025-10-05
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6539)
Duration: 1:37, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
17:18
San Antonio (SAT)

18:38
Dallas Fort Worth (DFW) E
Valid until 2025-05-03
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 6207)
Duration: 1:20, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
17:18
San Antonio (SAT)

18:38
Dallas Fort Worth (DFW) E
Operates only on 2025-05-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 6207)
Duration: 1:20, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4666
19:03
Chicago O'Hare (ORD) 3

21:40
Cleveland Hopkins (CLE)
Effective 2025-06-07 through 2025-06-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3375)
Duration: 1:37, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4666
19:05
Chicago O'Hare (ORD) 3

21:42
Cleveland Hopkins (CLE)
Effective 2025-07-01 through 2025-07-02
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3375)
Duration: 1:37, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4666
19:21
Chicago O'Hare (ORD) 3

21:52
Cleveland Hopkins (CLE)
Operates only on 2025-07-03
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3375)
Duration: 1:31, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4666
21:36
Ronald Reagan Washington (DCA) 2

22:50
Greensboro/High Point (GSO)
Effective 2025-07-06 through 2025-08-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3740)
Duration: 1:14, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4666
22:30
Dallas Fort Worth (DFW)

00:22(+1)
Nashville (BNA)
Effective 2025-06-05 through 2025-06-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 1539)
Duration: 1:52, non-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Alaska Airlines AS4666
22:45
Phoenix Sky Harbor (PHX) 4

00:29(+1)
Salt Lake City (SLC)
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6520)
Duration: 1:44, non-stop
Embraer EMB 175 (E75)
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) - Cleveland Hopkins (CLE)
  • Dallas Fort Worth (DFW) - Nashville (BNA)
  • Dallas Fort Worth (DFW) - San Antonio (SAT)
  • Detroit (DTW) - Chicago O'Hare (ORD)
  • Philadelphia (PHL) - Madison (MSN)
  • Philadelphia (PHL) - Raleigh/Durham (RDU)
  • Ronald Reagan Washington (DCA) - Greensboro/High Point (GSO)
  • Sacramento (SMF) - Los Angeles (LAX)
  • Salt Lake City (SLC) - Phoenix Sky Harbor (PHX)
  • Traverse City (TVC) - Chicago O'Hare (ORD)
All Alaska Airlines flights
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