Southwest Airlines flight WN 4521: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 16:10 Indianapolis (IND) 17:20 San Diego (SAN) 1
WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Effective 2025-06-07 through 2025-08-02
Mon-Wed 17:40 Santa Ana (SNA) 20:00 Phoenix Sky Harbor (PHX) 4
WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 17:40 Santa Ana (SNA) 20:00 Phoenix Sky Harbor (PHX) 4
WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-12-19 through 2026-01-04
Mon,Thu,Fri 19:30 Sacramento (SMF) B 20:55 Long Beach (LGB)
WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-10-02 through 2025-10-31
Mon,Thu,Fri 20:15 Oakland (OAK) 2 21:40 Los Angeles (LAX) 1
WN 4521 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-08-07 through 2025-09-29
Sun 20:35 Oakland (OAK) 2 22:00 Los Angeles (LAX) 1
WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-08-10 through 2025-08-24
Sun 20:35 Oakland (OAK) 2 22:00 Los Angeles (LAX) 1
WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-09-07 through 2025-09-28
Sat 22:45 Love Field, Dallas (DAL) 1 00:10 Memphis (MEM)
WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-22 through 2025-11-29
The flight arrives 1 day after departure.
Sat 22:45 Love Field, Dallas (DAL) 1 00:10 Memphis (MEM)
WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-20 through 2026-01-03
The flight arrives 1 day after departure.
Daily 23:20 Las Vegas Harry Reid (LAS) 1 05:00 Nashville (BNA)
WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 3:40 Valid until 2025-06-04
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4521: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4521
16:10
Indianapolis (IND)

17:20
San Diego (SAN) 1
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4521
17:40
Santa Ana (SNA)

20:00
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4521
17:40
Santa Ana (SNA)

20:00
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4521
19:30
Sacramento (SMF) B

20:55
Long Beach (LGB)
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4521
20:15
Oakland (OAK) 2

21:40
Los Angeles (LAX) 1
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4521
20:35
Oakland (OAK) 2

22:00
Los Angeles (LAX) 1
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4521
20:35
Oakland (OAK) 2

22:00
Los Angeles (LAX) 1
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4521
22:45
Love Field, Dallas (DAL) 1

00:10(+1)
Memphis (MEM)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.
Southwest Airlines WN4521
22:45
Love Field, Dallas (DAL) 1

00:10(+1)
Memphis (MEM)
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.
Southwest Airlines WN4521
23:20
Las Vegas Harry Reid (LAS) 1

05:00(+1)
Nashville (BNA)
Valid until 2025-06-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Indianapolis (IND) - San Diego (SAN)
  • Las Vegas Harry Reid (LAS) - Nashville (BNA)
  • Love Field, Dallas (DAL) - Memphis (MEM)
  • Oakland (OAK) - Los Angeles (LAX)
  • Sacramento (SMF) - Long Beach (LGB)
  • Santa Ana (SNA) - Phoenix Sky Harbor (PHX)
All Southwest Airlines flights
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