Alaska Airlines flight AS 4001: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 06:00 Chicago O'Hare (ORD) 3 09:06 New York LaGuardia (LGA) B
AS 4001 Non-stop Airbus A319 (319) 2:06 Effective 2025-10-06 through 2025-10-25
Codeshare flight, operated by American Airlines.(AA 327)
Mon-Fri,Sun 06:16 Chicago O'Hare (ORD) 3 09:23 New York LaGuardia (LGA) B
AS 4001 Non-stop Boeing 737-800 (738) 2:07 Valid until 2025-05-04
Codeshare flight, operated by American Airlines.(AA 327)
Mon-Fri,Sun 06:17 Chicago O'Hare (ORD) 3 09:23 New York LaGuardia (LGA) B
AS 4001 Non-stop Boeing 737-800 (738) 2:06 Effective 2025-05-05 through 2025-06-04
Codeshare flight, operated by American Airlines.(AA 327)
Sat 06:56 Chicago O'Hare (ORD) 3 08:48 Fayetteville/Springdale (XNA)
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:52 Operates only on 2025-09-06
Codeshare flight, operated by American Airlines.(AA 3595)
Sat,Sun 06:56 Chicago O'Hare (ORD) 3 08:48 Fayetteville/Springdale (XNA)
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:52 Effective 2025-10-04 through 2025-10-05
Codeshare flight, operated by American Airlines.(AA 3595)
Sat 07:00 Memphis (MEM) 08:55 Chicago O'Hare (ORD) 3
AS 4001 Non-stop Canadair CRJ 700 (CR7) 1:55 Operates only on 2025-05-10
Codeshare flight, operated by American Airlines.(AA 4899)
Daily 08:00 Chicago O'Hare (ORD) 3 10:39 Buffalo (BUF)
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:39 Effective 2025-10-26 through 2025-11-01
Codeshare flight, operated by American Airlines.(AA 3344)
Daily 08:00 Chicago O'Hare (ORD) 3 10:34 Buffalo (BUF)
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:34 Effective 2025-11-21 through 2025-12-02
Codeshare flight, operated by American Airlines.(AA 3344)
Daily 08:00 Chicago O'Hare (ORD) 3 10:42 Buffalo (BUF)
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:42 Effective 2025-12-03 through 2025-12-17
Codeshare flight, operated by American Airlines.(AA 3344)
Daily 08:00 Chicago O'Hare (ORD) 3 10:49 Buffalo (BUF)
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:49 Effective 2025-12-18 through 2026-01-05
Codeshare flight, operated by American Airlines.(AA 3344)
Daily 08:00 Chicago O'Hare (ORD) 3 10:46 Buffalo (BUF)
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:46 Effective 2026-01-06 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 3344)
Daily 08:00 Chicago O'Hare (ORD) 3 10:42 Buffalo (BUF)
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:42 Effective from 2026-02-12
Codeshare flight, operated by American Airlines.(AA 3344)
Sat 08:05 Chicago O'Hare (ORD) 3 10:54 George Bush, Houston (IAH) A
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:49 Effective 2025-06-14 through 2025-06-28
Codeshare flight, operated by American Airlines.(AA 3879)
Sat 08:35 Miami (MIA) 11:09 Chicago O'Hare (ORD) 3
AS 4001 Non-stop Boeing 737-800 (738) 3:34 Effective 2025-05-17 through 2025-05-31
Codeshare flight, operated by American Airlines.(AA 1431)
Mon-Fri,Sun 08:44 Phoenix Sky Harbor (PHX) 4 13:59 Minneapolis/Saint Paul (MSP) 1
AS 4001 Non-stop Boeing 737-800 (738) 3:15 Effective 2025-07-06 through 2025-08-01
Codeshare flight, operated by American Airlines.(AA 408)
Daily 09:00 Phoenix Sky Harbor (PHX) 4 14:10 Minneapolis/Saint Paul (MSP) 1
AS 4001 Non-stop Boeing 737-800 (738) 3:10 Effective 2025-06-05 through 2025-06-13
Codeshare flight, operated by American Airlines.(AA 408)
Mon-Fri,Sun 09:00 Phoenix Sky Harbor (PHX) 4 14:10 Minneapolis/Saint Paul (MSP) 1
AS 4001 Non-stop Boeing 737-800 (738) 3:10 Effective 2025-06-15 through 2025-07-04
Codeshare flight, operated by American Airlines.(AA 408)
Sat 09:33 Memphis (MEM) 11:17 Dallas Fort Worth (DFW)
AS 4001 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:44 Effective 2025-07-05 through 2025-08-02
Codeshare flight, operated by American Airlines.(AA 3528)
Daily 09:51 New York LaGuardia (LGA) B 11:29 Chicago O'Hare (ORD) 3
AS 4001 Non-stop Airbus A319 (319) 2:38 Effective 2025-10-06 through 2025-10-25
Codeshare flight, operated by American Airlines.(AA 327)
Daily 10:00 Dallas Fort Worth (DFW) 13:29 Savannah (SAV)
AS 4001 Non-stop Airbus A320 (320) 2:29 Effective 2025-08-06 through 2025-09-02
Codeshare flight, operated by American Airlines.(AA 2381)
Mon-Fri,Sun 10:18 Ronald Reagan Washington (DCA) 2 11:46 Chicago O'Hare (ORD) 3
AS 4001 Non-stop Boeing 737-800 (738) 2:28 Effective 2025-09-03 through 2025-10-03
Codeshare flight, operated by American Airlines.(AA 2633)
Mon-Fri,Sun 10:19 New York LaGuardia (LGA) B 11:57 Chicago O'Hare (ORD) 3
AS 4001 Non-stop Boeing 737-800 (738) 2:38 Effective 2025-05-05 through 2025-06-04
Codeshare flight, operated by American Airlines.(AA 327)
Mon-Fri,Sun 10:29 New York LaGuardia (LGA) B 12:09 Chicago O'Hare (ORD) 3
AS 4001 Non-stop Boeing 737-800 (738) 2:40 Valid until 2025-05-04
Codeshare flight, operated by American Airlines.(AA 327)
Daily 16:34 Buffalo (BUF) 17:55 Philadelphia (PHL) F
AS 4001 Non-stop Embraer ERJ 145 (ER4) 1:21 Effective 2025-11-02 through 2025-11-20
Codeshare flight, operated by American Airlines.(AA 5866)
Sat 16:54 Buffalo (BUF) 17:53 Chicago O'Hare (ORD) 3
AS 4001 Non-stop Embraer EMB 175 (E75) 1:59 Effective 2025-09-13 through 2025-09-27
Codeshare flight, operated by American Airlines.(AA 3879)
Mon,Tue,Sun 21:05 Dallas Fort Worth (DFW) 00:42 John Glenn Columbus (CMH)
AS 4001 Non-stop Boeing 737-800 (738) 2:37 Effective 2025-08-03 through 2025-08-05
Codeshare flight, operated by American Airlines.(AA 398)
The flight arrives 1 day after departure.
Sat 21:10 Dallas Fort Worth (DFW) 22:59 Birmingham (BHM)
AS 4001 Non-stop Airbus A320 (320) 1:49 Operates only on 2025-05-03
Codeshare flight, operated by American Airlines.(AA 2630)
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This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4001: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4001
06:00
Chicago O'Hare (ORD) 3

09:06
New York LaGuardia (LGA) B
Effective 2025-10-06 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 327)
Duration: 2:06, non-stop
Airbus A319 (319)
Alaska Airlines AS4001
06:16
Chicago O'Hare (ORD) 3

09:23
New York LaGuardia (LGA) B
Valid until 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 327)
Duration: 2:07, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4001
06:17
Chicago O'Hare (ORD) 3

09:23
New York LaGuardia (LGA) B
Effective 2025-05-05 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 327)
Duration: 2:06, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4001
06:56
Chicago O'Hare (ORD) 3

08:48
Fayetteville/Springdale (XNA)
Operates only on 2025-09-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3595)
Duration: 1:52, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
06:56
Chicago O'Hare (ORD) 3

08:48
Fayetteville/Springdale (XNA)
Effective 2025-10-04 through 2025-10-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3595)
Duration: 1:52, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
07:00
Memphis (MEM)

08:55
Chicago O'Hare (ORD) 3
Operates only on 2025-05-10
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4899)
Duration: 1:55, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4001
08:00
Chicago O'Hare (ORD) 3

10:39
Buffalo (BUF)
Effective 2025-10-26 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3344)
Duration: 1:39, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
08:00
Chicago O'Hare (ORD) 3

10:34
Buffalo (BUF)
Effective 2025-11-21 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3344)
Duration: 1:34, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
08:00
Chicago O'Hare (ORD) 3

10:42
Buffalo (BUF)
Effective 2025-12-03 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3344)
Duration: 1:42, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
08:00
Chicago O'Hare (ORD) 3

10:49
Buffalo (BUF)
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3344)
Duration: 1:49, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
08:00
Chicago O'Hare (ORD) 3

10:46
Buffalo (BUF)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3344)
Duration: 1:46, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
08:00
Chicago O'Hare (ORD) 3

10:42
Buffalo (BUF)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3344)
Duration: 1:42, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
08:05
Chicago O'Hare (ORD) 3

10:54
George Bush, Houston (IAH) A
Effective 2025-06-14 through 2025-06-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3879)
Duration: 2:49, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
08:35
Miami (MIA)

11:09
Chicago O'Hare (ORD) 3
Effective 2025-05-17 through 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 1431)
Duration: 3:34, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4001
08:44
Phoenix Sky Harbor (PHX) 4

13:59
Minneapolis/Saint Paul (MSP) 1
Effective 2025-07-06 through 2025-08-01
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 408)
Duration: 3:15, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4001
09:00
Phoenix Sky Harbor (PHX) 4

14:10
Minneapolis/Saint Paul (MSP) 1
Effective 2025-06-05 through 2025-06-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 408)
Duration: 3:10, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4001
09:00
Phoenix Sky Harbor (PHX) 4

14:10
Minneapolis/Saint Paul (MSP) 1
Effective 2025-06-15 through 2025-07-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 408)
Duration: 3:10, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4001
09:33
Memphis (MEM)

11:17
Dallas Fort Worth (DFW)
Effective 2025-07-05 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3528)
Duration: 1:44, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4001
09:51
New York LaGuardia (LGA) B

11:29
Chicago O'Hare (ORD) 3
Effective 2025-10-06 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 327)
Duration: 2:38, non-stop
Airbus A319 (319)
Alaska Airlines AS4001
10:00
Dallas Fort Worth (DFW)

13:29
Savannah (SAV)
Effective 2025-08-06 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2381)
Duration: 2:29, non-stop
Airbus A320 (320)
Alaska Airlines AS4001
10:18
Ronald Reagan Washington (DCA) 2

11:46
Chicago O'Hare (ORD) 3
Effective 2025-09-03 through 2025-10-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 2633)
Duration: 2:28, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4001
10:19
New York LaGuardia (LGA) B

11:57
Chicago O'Hare (ORD) 3
Effective 2025-05-05 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 327)
Duration: 2:38, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4001
10:29
New York LaGuardia (LGA) B

12:09
Chicago O'Hare (ORD) 3
Valid until 2025-05-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 327)
Duration: 2:40, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4001
16:34
Buffalo (BUF)

17:55
Philadelphia (PHL) F
Effective 2025-11-02 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5866)
Duration: 1:21, non-stop
Embraer ERJ 145 (ER4)
Alaska Airlines AS4001
16:54
Buffalo (BUF)

17:53
Chicago O'Hare (ORD) 3
Effective 2025-09-13 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3879)
Duration: 1:59, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4001
21:05
Dallas Fort Worth (DFW)

00:42(+1)
John Glenn Columbus (CMH)
Effective 2025-08-03 through 2025-08-05
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 398)
Duration: 2:37, non-stop
Boeing 737-800 (738)
The flight arrives 1 day after departure.
Alaska Airlines AS4001
21:10
Dallas Fort Worth (DFW)

22:59
Birmingham (BHM)
Operates only on 2025-05-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 2630)
Duration: 1:49, non-stop
Airbus A320 (320)
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This flight number is listed as serving the following routes:
  • Buffalo (BUF) - Philadelphia (PHL)
  • Chicago O'Hare (ORD) - Buffalo (BUF)
  • Chicago O'Hare (ORD) - Fayetteville/Springdale (XNA)
  • Chicago O'Hare (ORD) - George Bush, Houston (IAH)
  • Chicago O'Hare (ORD) - New York LaGuardia (LGA)
  • Dallas Fort Worth (DFW) - Birmingham (BHM)
  • Dallas Fort Worth (DFW) - John Glenn Columbus (CMH)
  • Dallas Fort Worth (DFW) - Savannah (SAV)
  • Memphis (MEM) - Chicago O'Hare (ORD)
  • Memphis (MEM) - Dallas Fort Worth (DFW)
  • Miami (MIA) - Chicago O'Hare (ORD)
  • Phoenix Sky Harbor (PHX) - Minneapolis/Saint Paul (MSP)
  • Ronald Reagan Washington (DCA) - Chicago O'Hare (ORD)
All Alaska Airlines flights
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