Alaska Airlines flight AS 4021: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Thu-Sat 06:00 Reno (RNO) 08:55 Phoenix Sky Harbor (PHX) 4
AS 4021 Non-stop Boeing 737-800 (738) 1:55 Effective 2026-03-05 through 2026-03-07
Codeshare flight, operated by American Airlines.(AA 1352)
Daily 06:05 Reno (RNO) 08:59 Phoenix Sky Harbor (PHX) 4
AS 4021 Non-stop Airbus A319 (319) 1:54 Effective 2026-01-06 through 2026-01-16
Codeshare flight, operated by American Airlines.(AA 3171)
Sat 06:05 Reno (RNO) 09:07 Phoenix Sky Harbor (PHX) 4
AS 4021 Non-stop Boeing 737-800 (738) 2:02 Operates only on 2026-01-24
Codeshare flight, operated by American Airlines.(AA 3171)
Daily 06:05 Reno (RNO) 08:59 Phoenix Sky Harbor (PHX) 4
AS 4021 Non-stop Airbus A319 (319) 1:54 Effective 2026-01-25 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 3171)
Daily 07:30 Oklahoma City (OKC) 08:44 Los Angeles (LAX)
AS 4021 Non-stop Embraer EMB 175 (E75) 3:14 Effective 2026-05-21 through 2026-07-01
Codeshare flight, operated by American Airlines.(AA 4895)
Daily 07:30 Oklahoma City (OKC) 08:36 Los Angeles (LAX)
AS 4021 Non-stop Embraer EMB 175 (E75) 3:06 Effective 2026-07-02 through 2026-08-04
Codeshare flight, operated by American Airlines.(AA 4895)
Mon,Wed-Fri,Sun 08:25 Philadelphia (PHL) F 10:22 Memphis (MEM)
AS 4021 Non-stop Canadair CRJ 900 (CR9) 2:57 Effective 2026-04-01 through 2026-04-06
Codeshare flight, operated by American Airlines.(AA 5053)
Mon,Sat,Sun 08:51 Wichita (ICT) 10:21 Dallas Fort Worth (DFW)
AS 4021 Non-stop Embraer EMB 175 (E75) 1:30 Effective 2026-01-03 through 2026-01-05
Codeshare flight, operated by American Airlines.(AA 3775)
Daily 11:03 Knoxville (TYS) 12:55 Philadelphia (PHL) F
AS 4021 Non-stop Embraer ERJ 145 (ER4) 1:52 Effective 2026-04-07 through 2026-05-12
Codeshare flight, operated by American Airlines.(AA 5916)
Mon-Fri,Sun 12:21 Philadelphia (PHL) 13:50 Chicago O'Hare (ORD) 3
AS 4021 Non-stop Airbus A319 (319) 2:29 Valid until 2026-01-02
Codeshare flight, operated by American Airlines.(AA 790)
Thu,Fri 12:21 Wichita (ICT) 13:46 Dallas Fort Worth (DFW)
AS 4021 Non-stop Embraer EMB 175 (E75) 1:25 Effective 2026-02-12 through 2026-02-13
Codeshare flight, operated by American Airlines.(AA 4120)
Daily 12:23 Wichita (ICT) 13:54 Dallas Fort Worth (DFW) E
AS 4021 Non-stop Canadair CRJ 700 (CR7) 1:31 Effective 2026-03-08 through 2026-03-28
Codeshare flight, operated by American Airlines.(AA 5284)
Daily 18:35 Philadelphia (PHL) F 20:24 Memphis (MEM)
AS 4021 Non-stop Canadair CRJ 900 (CR9) 2:49 Effective 2026-09-09 through 2026-10-04
Codeshare flight, operated by American Airlines.(AA 5408)
Daily 18:35 Philadelphia (PHL) F 20:18 Memphis (MEM)
AS 4021 Non-stop Canadair CRJ 900 (CR9) 2:43 Effective from 2026-10-05
Codeshare flight, operated by American Airlines.(AA 5387)
Sun 19:15 Oklahoma City (OKC) 20:47 Los Angeles (LAX)
AS 4021 Non-stop Embraer EMB 175 (E75) 3:32 Operates only on 2026-01-18
Codeshare flight, operated by American Airlines.(AA 6312)
Daily 19:51 Philadelphia (PHL) F 21:40 Memphis (MEM)
AS 4021 Non-stop Canadair CRJ 900 (CR9) 2:49 Effective 2026-08-05 through 2026-09-08
Codeshare flight, operated by American Airlines.(AA 5387)
This flight number is listed as serving the following routes:


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Alaska Airlines flight AS 4021: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Alaska Airlines AS4021
06:00
Reno (RNO)

08:55
Phoenix Sky Harbor (PHX) 4
Effective 2026-03-05 through 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 1352)
Duration: 1:55, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4021
06:05
Reno (RNO)

08:59
Phoenix Sky Harbor (PHX) 4
Effective 2026-01-06 through 2026-01-16
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3171)
Duration: 1:54, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4021
06:05
Reno (RNO)

09:07
Phoenix Sky Harbor (PHX) 4
Operates only on 2026-01-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 3171)
Duration: 2:02, non-stop
Boeing 737-800 (738)
Direct Codeshare Flights:
Alaska Airlines AS4021
06:05
Reno (RNO)

08:59
Phoenix Sky Harbor (PHX) 4
Effective 2026-01-25 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3171)
Duration: 1:54, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4021
07:30
Oklahoma City (OKC)

08:44
Los Angeles (LAX)
Effective 2026-05-21 through 2026-07-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4895)
Duration: 3:14, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4021
07:30
Oklahoma City (OKC)

08:36
Los Angeles (LAX)
Effective 2026-07-02 through 2026-08-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 4895)
Duration: 3:06, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4021
08:25
Philadelphia (PHL) F

10:22
Memphis (MEM)
Effective 2026-04-01 through 2026-04-06
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 5053)
Duration: 2:57, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Alaska Airlines AS4021
08:51
Wichita (ICT)

10:21
Dallas Fort Worth (DFW)
Effective 2026-01-03 through 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 3775)
Duration: 1:30, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4021
11:03
Knoxville (TYS)

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 5916)
Duration: 1:52, non-stop
Embraer ERJ 145 (ER4)
Direct Codeshare Flights:
Alaska Airlines AS4021
12:21
Philadelphia (PHL)

13:50
Chicago O'Hare (ORD) 3
Valid until 2026-01-02
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 790)
Duration: 2:29, non-stop
Airbus A319 (319)
Direct Codeshare Flights:
Alaska Airlines AS4021
12:21
Wichita (ICT)

13:46
Dallas Fort Worth (DFW)
Effective 2026-02-12 through 2026-02-13
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 4120)
Duration: 1:25, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4021
12:23
Wichita (ICT)

13:54
Dallas Fort Worth (DFW) E
Effective 2026-03-08 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5284)
Duration: 1:31, non-stop
Canadair CRJ 700 (CR7)
Direct Codeshare Flights:
Alaska Airlines AS4021
18:35
Philadelphia (PHL) F

20:24
Memphis (MEM)
Effective 2026-09-09 through 2026-10-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5408)
Duration: 2:49, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Alaska Airlines AS4021
18:35
Philadelphia (PHL) F

20:18
Memphis (MEM)
Effective from 2026-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5387)
Duration: 2:43, non-stop
Canadair CRJ 900 (CR9)
Direct Codeshare Flights:
Alaska Airlines AS4021
19:15
Oklahoma City (OKC)

20:47
Los Angeles (LAX)
Operates only on 2026-01-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Codeshare flight, operated by American Airlines. (AA 6312)
Duration: 3:32, non-stop
Embraer EMB 175 (E75)
Direct Codeshare Flights:
Alaska Airlines AS4021
19:51
Philadelphia (PHL) F

21:40
Memphis (MEM)
Effective 2026-08-05 through 2026-09-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 5387)
Duration: 2:49, non-stop
Canadair CRJ 900 (CR9)
This flight number is listed as serving the following routes:
  • Knoxville (TYS) - Philadelphia (PHL)
  • Oklahoma City (OKC) - Los Angeles (LAX)
  • Philadelphia (PHL) - Chicago O'Hare (ORD)
  • Philadelphia (PHL) - Memphis (MEM)
  • Reno (RNO) - Phoenix Sky Harbor (PHX)
  • Wichita (ICT) - Dallas Fort Worth (DFW)
All Alaska Airlines flights
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