Alaska Airlines flight AS 4455: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 05:36 Nashville (BNA) 07:25 Chicago O'Hare (ORD) 3
AS 4455 Non-stop Canadair CRJ 700 (CR7) 1:49 Effective 2025-08-06 through 2025-09-02
Codeshare flight, operated by American Airlines.(AA 4886)
Daily 08:00 Chicago O'Hare (ORD) 3 09:42 Omaha (OMA)
AS 4455 Non-stop Embraer EMB 175 (E75) 1:42 Effective from 2026-02-12
Codeshare flight, operated by American Airlines.(AA 4433)
Thu,Fri,Sun 09:40 Chicago O'Hare (ORD) 3 12:01 Cleveland Hopkins (CLE)
AS 4455 Non-stop Embraer EMB 175 (E75) 1:21 Valid until 2025-05-04
Codeshare flight, operated by American Airlines.(AA 3713)
Sat 09:40 Chicago O'Hare (ORD) 3 12:05 San Diego (SAN) 2
AS 4455 Non-stop Boeing 737-800 (738) 4:25 Operates only on 2025-05-24
Codeshare flight, operated by American Airlines.(AA 1466)
Daily 09:40 Chicago O'Hare (ORD) 3 11:24 Omaha (OMA)
AS 4455 Non-stop Embraer EMB 175 (E75) 1:44 Effective 2026-01-06 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 4433)
Daily 10:03 Chicago O'Hare (ORD) 3 12:28 San Diego (SAN) 2
AS 4455 Non-stop Boeing 737-800 (738) 4:25 Effective 2025-05-05 through 2025-05-23
Codeshare flight, operated by American Airlines.(AA 1466)
Daily 10:03 Chicago O'Hare (ORD) 3 12:28 San Diego (SAN) 2
AS 4455 Non-stop Boeing 737-800 (738) 4:25 Effective 2025-05-25 through 2025-06-04
Codeshare flight, operated by American Airlines.(AA 1466)
Mon-Fri,Sun 11:44 Chicago O'Hare (ORD) 3 14:07 Louisville (SDF)
AS 4455 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:23 Effective 2025-07-06 through 2025-08-05
Codeshare flight, operated by American Airlines.(AA 3741)
Daily 11:46 Chicago O'Hare (ORD) 3 14:04 Louisville (SDF)
AS 4455 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:18 Effective 2025-06-05 through 2025-07-04
Codeshare flight, operated by American Airlines.(AA 3741)
Sat 11:49 Chicago O'Hare (ORD) 3 14:12 Louisville (SDF)
AS 4455 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:23 Effective 2025-07-05 through 2025-08-02
Codeshare flight, operated by American Airlines.(AA 3741)
Daily 13:51 John Glenn Columbus (CMH) 14:20 Chicago O'Hare (ORD) 3
AS 4455 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:29 Effective 2025-11-02 through 2025-12-02
Codeshare flight, operated by American Airlines.(AA 3571)
Daily 16:00 Chicago O'Hare (ORD) 3 18:24 Louisville (SDF)
AS 4455 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:24 Effective 2025-09-03 through 2025-10-05
Codeshare flight, operated by American Airlines.(AA 3741)
Daily 17:42 Chicago O'Hare (ORD) 3 20:42 Philadelphia (PHL)
AS 4455 Non-stop Boeing 737-800 (738) 2:00 Effective 2025-12-18 through 2026-01-05
Codeshare flight, operated by American Airlines.(AA 2073)
Daily 18:30 Chicago O'Hare (ORD) 3 20:26 Memphis (MEM)
AS 4455 Non-stop Canadair CRJ 700 (CR7) 1:56 Effective 2025-12-03 through 2025-12-17
Codeshare flight, operated by American Airlines.(AA 6467)
Daily 20:20 Chicago O'Hare (ORD) 3 22:55 Louisville (SDF)
AS 4455 Non-stop Embraer EMB 175 (E75) 1:35 Effective 2025-10-06 through 2025-11-01
Codeshare flight, operated by American Airlines.(AA 4036)
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This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4455: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4455
05:36
Nashville (BNA)

07:25
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 4886)
Duration: 1:49, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4455
08:00
Chicago O'Hare (ORD) 3

09:42
Omaha (OMA)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4433)
Duration: 1:42, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4455
09:40
Chicago O'Hare (ORD) 3

12:01
Cleveland Hopkins (CLE)
Valid until 2025-05-04
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3713)
Duration: 1:21, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4455
09:40
Chicago O'Hare (ORD) 3

12:05
San Diego (SAN) 2
Operates only on 2025-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 1466)
Duration: 4:25, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4455
09:40
Chicago O'Hare (ORD) 3

11:24
Omaha (OMA)
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4433)
Duration: 1:44, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4455
10:03
Chicago O'Hare (ORD) 3

12:28
San Diego (SAN) 2
Effective 2025-05-05 through 2025-05-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1466)
Duration: 4:25, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4455
10:03
Chicago O'Hare (ORD) 3

12:28
San Diego (SAN) 2
Effective 2025-05-25 through 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1466)
Duration: 4:25, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4455
11:44
Chicago O'Hare (ORD) 3

14:07
Louisville (SDF)
Effective 2025-07-06 through 2025-08-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 3741)
Duration: 1:23, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4455
11:46
Chicago O'Hare (ORD) 3

14:04
Louisville (SDF)
Effective 2025-06-05 through 2025-07-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3741)
Duration: 1:18, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4455
11:49
Chicago O'Hare (ORD) 3

14:12
Louisville (SDF)
Effective 2025-07-05 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3741)
Duration: 1:23, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4455
13:51
John Glenn Columbus (CMH)

14:20
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 3571)
Duration: 1:29, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4455
16:00
Chicago O'Hare (ORD) 3

18:24
Louisville (SDF)
Effective 2025-09-03 through 2025-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3741)
Duration: 1:24, non-stop
Embraer EMB 170 / EMB 175 (E70)
Alaska Airlines AS4455
17:42
Chicago O'Hare (ORD) 3

20:42
Philadelphia (PHL)
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2073)
Duration: 2:00, non-stop
Boeing 737-800 (738)
Alaska Airlines AS4455
18:30
Chicago O'Hare (ORD) 3

20:26
Memphis (MEM)
Effective 2025-12-03 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6467)
Duration: 1:56, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4455
20:20
Chicago O'Hare (ORD) 3

22:55
Louisville (SDF)
Effective 2025-10-06 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4036)
Duration: 1:35, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Cleveland Hopkins (CLE)
  • Chicago O'Hare (ORD) - Louisville (SDF)
  • Chicago O'Hare (ORD) - Memphis (MEM)
  • Chicago O'Hare (ORD) - Omaha (OMA)
  • Chicago O'Hare (ORD) - Philadelphia (PHL)
  • Chicago O'Hare (ORD) - San Diego (SAN)
  • John Glenn Columbus (CMH) - Chicago O'Hare (ORD)
  • Nashville (BNA) - Chicago O'Hare (ORD)
All Alaska Airlines flights
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