Alaska Airlines flight AS 4239: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 08:00 Chicago O'Hare (ORD) 3 10:52 Syracuse (SYR)
AS 4239 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:52 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 3874)
Tue 08:30 New Orleans (MSY) 11:17 Chicago O'Hare (ORD) 3
AS 4239 Non-stop Embraer EMB 175 (E75) 2:47 Operates only on 2026-01-06
Codeshare flight, operated by American Airlines.(AA 4478)
Sun 08:30 New Orleans (MSY) 11:07 Chicago O'Hare (ORD) 3
AS 4239 Non-stop Embraer EMB 175 (E75) 2:37 Operates only on 2026-01-18
Codeshare flight, operated by American Airlines.(AA 3580)
Daily 09:40 Chicago O'Hare (ORD) 3 11:15 Minneapolis/Saint Paul (MSP) 1
AS 4239 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:35 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 3727)
Daily 09:40 Chicago O'Hare (ORD) 3 11:19 Minneapolis/Saint Paul (MSP) 1
AS 4239 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:39 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 3570)
Daily 11:27 Syracuse (SYR) 12:40 Chicago O'Hare (ORD) 3
AS 4239 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:13 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 3874)
Daily 12:40 Minneapolis/Saint Paul (MSP) 1 14:20 Chicago O'Hare (ORD) 3
AS 4239 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:40 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 3570)
Daily 12:44 Minneapolis/Saint Paul (MSP) 1 14:20 Chicago O'Hare (ORD) 3
AS 4239 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:36 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 3727)
Tue,Wed 21:01 Chicago O'Hare (ORD) 3 22:05 Madison (MSN)
AS 4239 Non-stop Embraer EMB 175 (E75) 1:04 Effective 2026-02-17 through 2026-03-04
Codeshare flight, operated by American Airlines.(AA 3598)
Sun 21:12 Chicago O'Hare (ORD) 3 22:16 Madison (MSN)
AS 4239 Non-stop Embraer EMB 175 (E75) 1:04 Operates only on 2026-02-15
Codeshare flight, operated by American Airlines.(AA 3598)
Mon,Tue,Thu,Fri,Sun 22:20 Chicago O'Hare (ORD) 3 23:28 Madison (MSN)
AS 4239 Non-stop Embraer EMB 175 (E75) 1:08 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 3598)
Mon-Fri,Sun 22:24 Chicago O'Hare (ORD) 3 23:25 Madison (MSN)
AS 4239 Non-stop Embraer EMB 175 (E75) 1:01 Effective 2026-03-08 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 3598)
Mon,Thu,Fri 22:31 Chicago O'Hare (ORD) 3 23:28 Madison (MSN)
AS 4239 Non-stop Embraer EMB 175 (E75) 0:57 Effective 2026-02-12 through 2026-02-20
Codeshare flight, operated by American Airlines.(AA 3598)
Mon,Thu,Fri,Sun 22:31 Chicago O'Hare (ORD) 3 23:28 Madison (MSN)
AS 4239 Non-stop Embraer EMB 175 (E75) 0:57 Effective 2026-02-22 through 2026-03-06
Codeshare flight, operated by American Airlines.(AA 3598)
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This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4239: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4239
08:00
Chicago O'Hare (ORD) 3

10:52
Syracuse (SYR)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3874)
Duration: 1:52, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4239
08:30
New Orleans (MSY)

11:17
Chicago O'Hare (ORD) 3
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 4478)
Duration: 2:47, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4239
08:30
New Orleans (MSY)

11:07
Chicago O'Hare (ORD) 3
Operates only on 2026-01-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3580)
Duration: 2:37, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4239
09:40
Chicago O'Hare (ORD) 3

11:15
Minneapolis/Saint Paul (MSP) 1
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3727)
Duration: 1:35, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4239
09:40
Chicago O'Hare (ORD) 3

11:19
Minneapolis/Saint Paul (MSP) 1
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3570)
Duration: 1:39, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4239
11:27
Syracuse (SYR)

12:40
Chicago O'Hare (ORD) 3
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3874)
Duration: 2:13, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4239
12:40
Minneapolis/Saint Paul (MSP) 1

14:20
Chicago O'Hare (ORD) 3
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3570)
Duration: 1:40, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4239
12:44
Minneapolis/Saint Paul (MSP) 1

14:20
Chicago O'Hare (ORD) 3
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3727)
Duration: 1:36, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4239
21:01
Chicago O'Hare (ORD) 3

22:05
Madison (MSN)
Effective 2026-02-17 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3598)
Duration: 1:04, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4239
21:12
Chicago O'Hare (ORD) 3

22:16
Madison (MSN)
Operates only on 2026-02-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3598)
Duration: 1:04, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4239
22:20
Chicago O'Hare (ORD) 3

23:28
Madison (MSN)
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3598)
Duration: 1:08, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4239
22:24
Chicago O'Hare (ORD) 3

23:25
Madison (MSN)
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3598)
Duration: 1:01, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4239
22:31
Chicago O'Hare (ORD) 3

23:28
Madison (MSN)
Effective 2026-02-12 through 2026-02-20
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 3598)
Duration: 0:57, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4239
22:31
Chicago O'Hare (ORD) 3

23:28
Madison (MSN)
Effective 2026-02-22 through 2026-03-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3598)
Duration: 0:57, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Madison (MSN)
  • Minneapolis/Saint Paul (MSP) - Chicago O'Hare (ORD)
  • New Orleans (MSY) - Chicago O'Hare (ORD)
  • Syracuse (SYR) - Chicago O'Hare (ORD)
All Alaska Airlines flights
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