Alaska Airlines flight AS 4203: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 05:10 Chicago O'Hare (ORD) 3 08:15 Charlotte (CLT)
AS 4203 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-04-07 through 2026-05-20
Codeshare flight, operated by American Airlines.(AA 2842)
Daily 07:00 Chicago O'Hare (ORD) 3 09:59 Charlotte (CLT)
AS 4203 Non-stop Airbus A321 (321) 1:59 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 1784)
Daily 07:50 Los Angeles (LAX) 12:54 Austin (AUS)
AS 4203 Non-stop Boeing 737-800 (738) 3:04 Effective 2026-08-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 821)
Daily 08:00 Los Angeles (LAX) 13:03 Austin (AUS)
AS 4203 Non-stop Boeing 737-800 (738) 3:03 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 821)
Daily 08:00 Chicago O'Hare (ORD) 3 10:56 Harrisburg (MDT)
AS 4203 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:56 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 3548)
Mon,Tue,Sat,Sun 08:03 Chicago O'Hare (ORD) 3 11:05 Charlotte (CLT)
AS 4203 Non-stop Boeing 737-800 (738) 2:02 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 2814)
Tue 08:12 Chicago O'Hare (ORD) 3 11:16 Charlotte (CLT)
AS 4203 Non-stop Boeing 737-800 (738) 2:04 Operates only on 2026-01-06
Codeshare flight, operated by American Airlines.(AA 2814)
Daily 13:07 Harrisburg (MDT) 14:20 Chicago O'Hare (ORD) 3
AS 4203 Non-stop Embraer EMB 170 / EMB 175 (E70) 2:13 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 3548)
Mon,Tue,Sat,Sun 13:10 Chicago O'Hare (ORD) 3 16:07 Harrisburg (MDT)
AS 4203 Non-stop Embraer EMB 170 / EMB 175 (E70) 1:57 Effective 2026-08-01 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 4064)
Daily 13:49 Austin (AUS) 14:54 Los Angeles (LAX)
AS 4203 Non-stop Boeing 737-800 (738) 3:05 Effective 2026-08-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 821)
Daily 13:53 Austin (AUS) 15:03 Los Angeles (LAX)
AS 4203 Non-stop Boeing 737-800 (738) 3:10 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 821)
Thu,Fri 14:31 Cyril E. King, Saint Thomas Island (STT) 17:46 Philadelphia (PHL)
AS 4203 Non-stop Airbus A319 (319) 4:15 Valid until 2026-01-02
Codeshare flight, operated by American Airlines.(AA 2609)
Daily 15:15 Chicago O'Hare (ORD) 3 18:25 Charlotte (CLT)
AS 4203 Non-stop Boeing 737-800 (738) 2:10 Effective 2026-03-08 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 2576)
This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4203: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4203
05:10
Chicago O'Hare (ORD) 3

08:15
Charlotte (CLT)
Effective 2026-04-07 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2842)
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Codeshare Flights:
Alaska Airlines AS4203
07:00
Chicago O'Hare (ORD) 3

09:59
Charlotte (CLT)
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 1784)
Duration: 1:59, non-stop
Airbus A321 (321)
Direct Codeshare Flights:
Alaska Airlines AS4203
07:50
Los Angeles (LAX)

12:54
Austin (AUS)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 821)
Duration: 3:04, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4203
08:00
Los Angeles (LAX)

13:03
Austin (AUS)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 821)
Duration: 3:03, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4203
08:00
Chicago O'Hare (ORD) 3

10:56
Harrisburg (MDT)
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3548)
Duration: 1:56, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4203
08:03
Chicago O'Hare (ORD) 3

11:05
Charlotte (CLT)
Valid until 2026-01-05
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2814)
Duration: 2:02, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4203
08:12
Chicago O'Hare (ORD) 3

11:16
Charlotte (CLT)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 2814)
Duration: 2:04, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4203
13:07
Harrisburg (MDT)

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 3548)
Duration: 2:13, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4203
13:10
Chicago O'Hare (ORD) 3

16:07
Harrisburg (MDT)
Effective 2026-08-01 through 2026-08-04
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4064)
Duration: 1:57, non-stop
Embraer EMB 170 / EMB 175 (E70)
Direct Codeshare Flights:
Alaska Airlines AS4203
13:49
Austin (AUS)

14:54
Los Angeles (LAX)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 821)
Duration: 3:05, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4203
13:53
Austin (AUS)

15:03
Los Angeles (LAX)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 821)
Duration: 3:10, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4203
14:31
Cyril E. King, Saint Thomas Island (STT)

17:46
Philadelphia (PHL)
Valid until 2026-01-02
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 2609)
Duration: 4:15, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4203
15:15
Chicago O'Hare (ORD) 3

18:25
Charlotte (CLT)
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 2576)
Duration: 2:10, non-stop
Boeing 737-800 (738)
This flight number is listed as serving the following routes:
  • Austin (AUS) - Los Angeles (LAX)
  • Chicago O'Hare (ORD) - Charlotte (CLT)
  • Chicago O'Hare (ORD) - Harrisburg (MDT)
  • Cyril E. King, Saint Thomas Island (STT) - Philadelphia (PHL)
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