Alaska Airlines flight AS 4678: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 06:54 Lexington (LEX) 07:30 Chicago O'Hare (ORD) 3
AS 4678 Non-stop Canadair CRJ 700 (CR7) 1:36 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 4976)
Daily 06:55 Lexington (LEX) 07:30 Chicago O'Hare (ORD) 3
AS 4678 Non-stop Canadair CRJ 700 (CR7) 1:35 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 4976)
Mon-Fri,Sun 10:30 Philadelphia (PHL) F 11:32 Salisbury/Ocean City (SBY)
AS 4678 Non-stop Embraer ERJ 145 (ER4) 1:02 Effective 2026-04-07 through 2026-05-12
Codeshare flight, operated by American Airlines.(AA 5857)
Mon-Fri,Sun 12:01 Salisbury/Ocean City (SBY) 12:55 Philadelphia (PHL) F
AS 4678 Non-stop Embraer ERJ 145 (ER4) 0:54 Effective 2026-04-07 through 2026-05-12
Codeshare flight, operated by American Airlines.(AA 5857)
Daily 16:48 Phoenix Sky Harbor (PHX) 4 18:51 Monterey/Carmel (MRY)
AS 4678 Non-stop Canadair CRJ 700 (CR7) 2:03 Effective 2026-03-08 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 6237)
Daily 17:02 Chicago O'Hare (ORD) 3 20:11 Raleigh/Durham (RDU) 2
AS 4678 Non-stop Embraer EMB 175 (E75) 2:09 Effective 2026-08-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 4503)
Mon,Tue,Thu-Sun 17:42 Phoenix Sky Harbor (PHX) 4 18:46 Monterey/Carmel (MRY)
AS 4678 Non-stop Canadair CRJ 700 (CR7) 2:04 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 6237)
Tue 17:47 Phoenix Sky Harbor (PHX) 4 18:53 Monterey/Carmel (MRY)
AS 4678 Non-stop Canadair CRJ 700 (CR7) 2:06 Effective 2026-02-17 through 2026-03-03
Codeshare flight, operated by American Airlines.(AA 6237)
Sat 18:35 Philadelphia (PHL) 20:47 Indianapolis (IND)
AS 4678 Non-stop Embraer EMB 175 (E75) 2:12 Operates only on 2026-04-11
Codeshare flight, operated by American Airlines.(AA 4557)
Daily 19:07 Lexington (LEX) 19:50 Chicago O'Hare (ORD) 3
AS 4678 Non-stop Canadair CRJ 700 (CR7) 1:43 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 6422)
Daily 21:05 Philadelphia (PHL) F 22:51 Wilmington (ILM)
AS 4678 Non-stop Embraer ERJ 145 (ER4) 1:46 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 5821)
This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4678: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4678
06:54
Lexington (LEX)

07:30
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 4976)
Duration: 1:36, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4678
06:55
Lexington (LEX)

07:30
Chicago O'Hare (ORD) 3
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4976)
Duration: 1:35, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4678
10:30
Philadelphia (PHL) F

11:32
Salisbury/Ocean City (SBY)
Effective 2026-04-07 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 5857)
Duration: 1:02, non-stop
Embraer ERJ 145 (ER4)
Direct Codeshare Flights:
Alaska Airlines AS4678
12:01
Salisbury/Ocean City (SBY)

12:55
Philadelphia (PHL) F
Effective 2026-04-07 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 5857)
Duration: 0:54, non-stop
Embraer ERJ 145 (ER4)
Direct Codeshare Flights:
Alaska Airlines AS4678
16:48
Phoenix Sky Harbor (PHX) 4

18:51
Monterey/Carmel (MRY)
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6237)
Duration: 2:03, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4678
17:02
Chicago O'Hare (ORD) 3

20:11
Raleigh/Durham (RDU) 2
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4503)
Duration: 2:09, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4678
17:42
Phoenix Sky Harbor (PHX) 4

18:46
Monterey/Carmel (MRY)
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6237)
Duration: 2:04, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4678
17:47
Phoenix Sky Harbor (PHX) 4

18:53
Monterey/Carmel (MRY)
Effective 2026-02-17 through 2026-03-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 6237)
Duration: 2:06, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4678
18:35
Philadelphia (PHL)

20:47
Indianapolis (IND)
Operates only on 2026-04-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 4557)
Duration: 2:12, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4678
19:07
Lexington (LEX)

19:50
Chicago O'Hare (ORD) 3
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 6422)
Duration: 1:43, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4678
21:05
Philadelphia (PHL) F

22:51
Wilmington (ILM)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5821)
Duration: 1:46, non-stop
Embraer ERJ 145 (ER4)
This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Raleigh/Durham (RDU)
  • Lexington (LEX) - Chicago O'Hare (ORD)
  • Philadelphia (PHL) - Indianapolis (IND)
  • Philadelphia (PHL) - Wilmington (ILM)
  • Phoenix Sky Harbor (PHX) - Monterey/Carmel (MRY)
  • Salisbury/Ocean City (SBY) - Philadelphia (PHL)
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