Alaska Airlines flight AS 4678: Multiple routes

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FLIGHT SCHEDULE
Direct Codeshare Flights:
Sat 06:00 Lexington (LEX) 06:35 Chicago O'Hare (ORD) 3
AS 4678 Non-stop Canadair CRJ 700 (CR7) 1:35 Effective 2025-06-07 through 2025-06-28
Codeshare flight, operated by American Airlines.(AA 4976)
Daily 06:04 Lexington (LEX) 06:40 Chicago O'Hare (ORD) 3
AS 4678 Non-stop Canadair CRJ 700 (CR7) 1:36 Effective 2025-07-05 through 2025-08-05
Codeshare flight, operated by American Airlines.(AA 4976)
Mon-Fri,Sun 06:10 Lexington (LEX) 06:45 Chicago O'Hare (ORD) 3
AS 4678 Non-stop Canadair CRJ 700 (CR7) 1:35 Effective 2025-06-05 through 2025-07-04
Codeshare flight, operated by American Airlines.(AA 4976)
Mon,Wed-Fri,Sun 10:30 Philadelphia (PHL) F 11:55 Burlington (BTV)
AS 4678 Non-stop Canadair CRJ 900 (CR9) 1:25 Valid until 2025-05-02
Codeshare flight, operated by American Airlines.(AA 5517)
Mon-Fri,Sun 12:33 Lexington (LEX) 13:11 Chicago O'Hare (ORD) 3
AS 4678 Non-stop Canadair CRJ 700 (CR7) 1:38 Effective 2025-09-03 through 2025-10-03
Codeshare flight, operated by American Airlines.(AA 4976)
Sat,Sun 15:09 Traverse City (TVC) 15:33 Chicago O'Hare (ORD) 3
AS 4678 Non-stop Embraer EMB 175 (E75) 1:24 Effective 2025-10-04 through 2025-10-05
Codeshare flight, operated by American Airlines.(AA 4381)
Wed-Sat 16:12 Chicago O'Hare (ORD) 3 19:19 Raleigh/Durham (RDU) 2
AS 4678 Non-stop Embraer EMB 175 (E75) 2:07 Effective 2025-08-06 through 2025-08-16
Codeshare flight, operated by American Airlines.(AA 4503)
Daily 16:12 Chicago O'Hare (ORD) 3 19:19 Raleigh/Durham (RDU) 2
AS 4678 Non-stop Embraer EMB 175 (E75) 2:07 Effective 2025-08-17 through 2025-09-02
Codeshare flight, operated by American Airlines.(AA 4503)
Tue 16:23 Lexington (LEX) 17:00 Chicago O'Hare (ORD) 3
AS 4678 Non-stop Canadair CRJ 700 (CR7) 1:37 Operates only on 2026-01-06
Codeshare flight, operated by American Airlines.(AA 4993)
Daily 16:35 Dallas Fort Worth (DFW) 17:58 Laredo (LRD)
AS 4678 Non-stop Embraer EMB 175 (E75) 1:23 Effective 2025-10-26 through 2025-11-01
Codeshare flight, operated by American Airlines.(AA 3503)
Sat 18:55 Philadelphia (PHL) 21:08 Indianapolis (IND)
AS 4678 Non-stop Embraer EMB 175 (E75) 2:13 Operates only on 2025-05-31
Codeshare flight, operated by American Airlines.(AA 4557)
Mon,Tue,Sun 20:54 Chicago O'Hare (ORD) 3 23:44 Pittsburgh (PIT)
AS 4678 Non-stop Embraer EMB 175 (E75) 1:50 Effective 2025-08-10 through 2025-08-12
Codeshare flight, operated by American Airlines.(AA 4527)
Daily 21:20 Phoenix Sky Harbor (PHX) 4 22:24 Monterey/Carmel (MRY)
AS 4678 Non-stop Embraer EMB 175 (E75) 2:04 Effective 2025-11-02 through 2025-11-19
Codeshare flight, operated by American Airlines.(AA 3444)
Daily 21:20 Phoenix Sky Harbor (PHX) 4 22:24 Monterey/Carmel (MRY)
AS 4678 Non-stop Embraer EMB 175 (E75) 2:04 Effective 2025-11-21 through 2025-12-02
Codeshare flight, operated by American Airlines.(AA 3444)
Daily 21:20 Phoenix Sky Harbor (PHX) 4 22:22 Monterey/Carmel (MRY)
AS 4678 Non-stop Embraer EMB 175 (E75) 2:02 Effective 2025-12-03 through 2025-12-17
Codeshare flight, operated by American Airlines.(AA 3444)
Daily 21:20 Phoenix Sky Harbor (PHX) 4 22:29 Monterey/Carmel (MRY)
AS 4678 Non-stop Embraer EMB 175 (E75) 2:09 Effective 2025-12-18 through 2026-01-05
Codeshare flight, operated by American Airlines.(AA 3444)
Daily 21:20 Phoenix Sky Harbor (PHX) 4 22:19 Monterey/Carmel (MRY)
AS 4678 Non-stop Embraer EMB 175 (E75) 1:59 Effective from 2026-02-12
Codeshare flight, operated by American Airlines.(AA 3444)
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This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4678: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4678
06:00
Lexington (LEX)

06:35
Chicago O'Hare (ORD) 3
Effective 2025-06-07 through 2025-06-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4976)
Duration: 1:35, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4678
06:04
Lexington (LEX)

06:40
Chicago O'Hare (ORD) 3
Effective 2025-07-05 through 2025-08-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4976)
Duration: 1:36, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4678
06:10
Lexington (LEX)

06:45
Chicago O'Hare (ORD) 3
Effective 2025-06-05 through 2025-07-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 4976)
Duration: 1:35, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4678
10:30
Philadelphia (PHL) F

11:55
Burlington (BTV)
Valid until 2025-05-02
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 5517)
Duration: 1:25, non-stop
Canadair CRJ 900 (CR9)
Alaska Airlines AS4678
12:33
Lexington (LEX)

13:11
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 4976)
Duration: 1:38, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4678
15:09
Traverse City (TVC)

15:33
Chicago O'Hare (ORD) 3
Effective 2025-10-04 through 2025-10-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4381)
Duration: 1:24, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
16:12
Chicago O'Hare (ORD) 3

19:19
Raleigh/Durham (RDU) 2
Effective 2025-08-06 through 2025-08-16
Mon
-
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4503)
Duration: 2:07, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
16:12
Chicago O'Hare (ORD) 3

19:19
Raleigh/Durham (RDU) 2
Effective 2025-08-17 through 2025-09-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4503)
Duration: 2:07, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
16:23
Lexington (LEX)

17:00
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 4993)
Duration: 1:37, non-stop
Canadair CRJ 700 (CR7)
Alaska Airlines AS4678
16:35
Dallas Fort Worth (DFW)

17:58
Laredo (LRD)
Effective 2025-10-26 through 2025-11-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3503)
Duration: 1:23, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
18:55
Philadelphia (PHL)

21:08
Indianapolis (IND)
Operates only on 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4557)
Duration: 2:13, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
20:54
Chicago O'Hare (ORD) 3

23:44
Pittsburgh (PIT)
Effective 2025-08-10 through 2025-08-12
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 4527)
Duration: 1:50, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
21:20
Phoenix Sky Harbor (PHX) 4

22:24
Monterey/Carmel (MRY)
Effective 2025-11-02 through 2025-11-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3444)
Duration: 2:04, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
21:20
Phoenix Sky Harbor (PHX) 4

22:24
Monterey/Carmel (MRY)
Effective 2025-11-21 through 2025-12-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3444)
Duration: 2:04, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
21:20
Phoenix Sky Harbor (PHX) 4

22:22
Monterey/Carmel (MRY)
Effective 2025-12-03 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3444)
Duration: 2:02, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
21:20
Phoenix Sky Harbor (PHX) 4

22:29
Monterey/Carmel (MRY)
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3444)
Duration: 2:09, non-stop
Embraer EMB 175 (E75)
Alaska Airlines AS4678
21:20
Phoenix Sky Harbor (PHX) 4

22:19
Monterey/Carmel (MRY)
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3444)
Duration: 1:59, non-stop
Embraer EMB 175 (E75)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Pittsburgh (PIT)
  • Chicago O'Hare (ORD) - Raleigh/Durham (RDU)
  • Dallas Fort Worth (DFW) - Laredo (LRD)
  • Lexington (LEX) - Chicago O'Hare (ORD)
  • Philadelphia (PHL) - Burlington (BTV)
  • Philadelphia (PHL) - Indianapolis (IND)
  • Phoenix Sky Harbor (PHX) - Monterey/Carmel (MRY)
  • Traverse City (TVC) - Chicago O'Hare (ORD)
All Alaska Airlines flights
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