Southwest Airlines flight WN 4540: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue 13:00 San Jose (SJC) B 14:25 San Diego (SAN) 1
WN 4540 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-08-04 through 2026-09-29
Sun 13:10 Denver (DEN) 14:45 Oakland (OAK) 2
WN 4540 Non-stop Boeing 737-800 (73H) 2:35 Operates only on 2026-05-24
Sat 13:20 San Jose (SJC) B 14:45 San Diego (SAN) 1
WN 4540 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-08-08 through 2026-09-26
Sun 14:10 San Jose (SJC) B 15:30 San Diego (SAN) 1
WN 4540 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-08-09 through 2026-09-27
Sat 14:15 Ontario, Los Angeles (ONT) 4 15:30 San Jose (SJC) B
WN 4540 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Valid until 2026-01-03
Tue,Wed 14:20 Las Vegas Harry Reid (LAS) 1 15:35 Burbank (BUR)
WN 4540 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 14:40 Las Vegas Harry Reid (LAS) 1 15:50 Burbank (BUR)
WN 4540 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-06-04 through 2026-08-03
Sun 14:50 Denver (DEN) 16:25 Oakland (OAK) 2
WN 4540 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-04-12 through 2026-05-17
Sun 14:50 Denver (DEN) 16:25 Oakland (OAK) 2
WN 4540 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Operates only on 2026-05-31
Sun 15:20 Las Vegas Harry Reid (LAS) 1 16:35 Burbank (BUR)
WN 4540 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-06-07 through 2026-08-02
Fri,Sun 15:40 Las Vegas Harry Reid (LAS) 1 16:45 Ontario, Los Angeles (ONT) 4
WN 4540 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-01-02 through 2026-01-04
Mon 16:00 Ontario, Los Angeles (ONT) 4 17:15 San Jose (SJC) B
WN 4540 Non-stop Boeing 737-800 (73H) 1:15 Operates only on 2026-01-05
Sat 16:20 Las Vegas Harry Reid (LAS) 1 17:30 Burbank (BUR)
WN 4540 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-06-06 through 2026-08-01
Tue,Wed 17:10 Denver (DEN) 18:50 Oakland (OAK) 2
WN 4540 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-04-07 through 2026-06-03
Fri,Sun 17:20 Ontario, Los Angeles (ONT) 4 18:35 San Jose (SJC) B
WN 4540 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-01-02 through 2026-01-04
Mon,Thu,Fri 20:40 San Jose (SJC) B 22:05 San Diego (SAN) 1
WN 4540 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-08-06 through 2026-09-28
Non-Direct Flights:
Fri,Sun 15:40 Las Vegas Harry Reid (LAS) 1 18:35 San Jose (SJC) B
WN 4540 1-stop Boeing 737-700 (Scimitar Winglets) 2:55 Effective 2026-01-02 through 2026-01-04
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4540: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4540
13:00
San Jose (SJC) B

14:25
San Diego (SAN) 1
Effective 2026-08-04 through 2026-09-29
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4540
13:10
Denver (DEN)

14:45
Oakland (OAK) 2
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4540
13:20
San Jose (SJC) B

14:45
San Diego (SAN) 1
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4540
14:10
San Jose (SJC) B

15:30
San Diego (SAN) 1
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4540
14:15
Ontario, Los Angeles (ONT) 4

15:30
San Jose (SJC) B
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4540
14:20
Las Vegas Harry Reid (LAS) 1

15:35
Burbank (BUR)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4540
14:40
Las Vegas Harry Reid (LAS) 1

15:50
Burbank (BUR)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4540
14:50
Denver (DEN)

16:25
Oakland (OAK) 2
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4540
14:50
Denver (DEN)

16:25
Oakland (OAK) 2
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4540
15:20
Las Vegas Harry Reid (LAS) 1

16:35
Burbank (BUR)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4540
15:40
Las Vegas Harry Reid (LAS) 1

16:45
Ontario, Los Angeles (ONT) 4
Effective 2026-01-02 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4540
16:00
Ontario, Los Angeles (ONT) 4

17:15
San Jose (SJC) B
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4540
16:20
Las Vegas Harry Reid (LAS) 1

17:30
Burbank (BUR)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4540
17:10
Denver (DEN)

18:50
Oakland (OAK) 2
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4540
17:20
Ontario, Los Angeles (ONT) 4

18:35
San Jose (SJC) B
Effective 2026-01-02 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4540
20:40
San Jose (SJC) B

22:05
San Diego (SAN) 1
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4540
15:40
Las Vegas Harry Reid (LAS) 1

18:35
San Jose (SJC) B
Effective 2026-01-02 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:55, 1-stop
Boeing 737-700 (Scimitar Winglets)
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Parallax here -
This flight number is listed as serving the following routes:
  • Denver (DEN) - Oakland (OAK)
  • Las Vegas Harry Reid (LAS) - Burbank (BUR)
  • Las Vegas Harry Reid (LAS) - Ontario, Los Angeles (ONT)
  • Las Vegas Harry Reid (LAS) - San Jose (SJC)
  • Ontario, Los Angeles (ONT) - San Jose (SJC)
  • San Jose (SJC) - San Diego (SAN)
All Southwest Airlines flights
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