Southwest Airlines flight WN 4020: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 10:10 Oakland (OAK) 2 11:40 San Diego (SAN) 1
WN 4020 Non-stop Boeing 737-800 (73H) 1:30 Effective 2025-10-05 through 2025-10-26
Fri 10:20 Denver (DEN) 15:40 Richmond (RIC)
WN 4020 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Operates only on 2025-07-04
Mon,Thu,Fri 12:20 Oakland (OAK) 2 13:50 San Diego (SAN) 1
WN 4020 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-10-02 through 2025-10-31
Sun 12:20 San Diego (SAN) 1 13:45 Phoenix Sky Harbor (PHX) 4
WN 4020 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-10-05 through 2025-10-26
Sun 13:55 Denver (DEN) 19:15 Richmond (RIC)
WN 4020 Non-stop Boeing 737-700 (73W) 3:20 Effective 2025-06-08 through 2025-08-03
Mon,Thu,Fri 14:10 Denver (DEN) 19:30 Richmond (RIC)
WN 4020 Non-stop Boeing 737-800 (73H) 3:20 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 14:10 Denver (DEN) 19:30 Richmond (RIC)
WN 4020 Non-stop Boeing 737-800 (73H) 3:20 Effective 2025-07-07 through 2025-08-04
Sat 14:25 Denver (DEN) 15:55 Burbank (BUR)
WN 4020 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2025-11-22 through 2025-11-29
Sat 14:25 Denver (DEN) 15:55 Burbank (BUR)
WN 4020 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2025-12-20 through 2026-01-03
Sun 17:20 Love Field, Dallas (DAL) 1 18:30 Little Rock (LIT)
WN 4020 Non-stop Boeing 737-700 (73W) 1:10 Operates only on 2025-05-25
Tue,Wed 18:10 Denver (DEN) 23:35 Richmond (RIC)
WN 4020 Non-stop Boeing 737-700 (73W) 3:25 Effective 2025-06-10 through 2025-07-30
Sat 18:25 Denver (DEN) 23:50 Richmond (RIC)
WN 4020 Non-stop Boeing 737-700 (73W) 3:25 Effective 2025-06-07 through 2025-08-02
Non-Direct Flights:
Sun 10:10 Oakland (OAK) 2 13:45 Phoenix Sky Harbor (PHX) 4
WN 4020 1-stop Boeing 737-800 (73H) 3:35 Effective 2025-10-05 through 2025-10-26
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4020: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4020
10:10
Oakland (OAK) 2

11:40
San Diego (SAN) 1
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4020
10:20
Denver (DEN)

15:40
Richmond (RIC)
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4020
12:20
Oakland (OAK) 2

13:50
San Diego (SAN) 1
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4020
12:20
San Diego (SAN) 1

13:45
Phoenix Sky Harbor (PHX) 4
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4020
13:55
Denver (DEN)

19:15
Richmond (RIC)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4020
14:10
Denver (DEN)

19:30
Richmond (RIC)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:20, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4020
14:10
Denver (DEN)

19:30
Richmond (RIC)
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:20, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4020
14:25
Denver (DEN)

15:55
Burbank (BUR)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4020
14:25
Denver (DEN)

15:55
Burbank (BUR)
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4020
17:20
Love Field, Dallas (DAL) 1

18:30
Little Rock (LIT)
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4020
18:10
Denver (DEN)

23:35
Richmond (RIC)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4020
18:25
Denver (DEN)

23:50
Richmond (RIC)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:25, non-stop
Boeing 737-700 (73W)
Non-Direct Flights:
Southwest Airlines WN4020
10:10
Oakland (OAK) 2

13:45
Phoenix Sky Harbor (PHX) 4
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:35, 1-stop
Boeing 737-800 (73H)
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This flight number is listed as serving the following routes:
  • Denver (DEN) - Burbank (BUR)
  • Denver (DEN) - Richmond (RIC)
  • Love Field, Dallas (DAL) - Little Rock (LIT)
  • Oakland (OAK) - Phoenix Sky Harbor (PHX)
  • Oakland (OAK) - San Diego (SAN)
  • San Diego (SAN) - Phoenix Sky Harbor (PHX)
All Southwest Airlines flights
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