Southwest Airlines flight WN 4521: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 08:35 San Francisco (SFO) 2 10:00 Burbank (BUR) WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-08-04 through 2026-09-30
Sat 08:45 Saint Louis (STL) 2 12:00 Tampa (TPA) WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-04-11 through 2026-05-30
Tue,Wed 10:20 Saint Louis (STL) 2 13:40 Tampa (TPA) WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-04-07 through 2026-06-03
Sun 10:20 Saint Louis (STL) 2 13:40 Tampa (TPA) WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-04-12 through 2026-05-17
Sun 10:20 Saint Louis (STL) 2 13:40 Tampa (TPA) WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2026-05-31
Mon,Thu,Fri 10:25 Saint Louis (STL) 2 13:40 Tampa (TPA) WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-04-09 through 2026-06-01
Sun 11:05 Saint Louis (STL) 2 14:20 Tampa (TPA) WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Operates only on 2026-05-24
Sat 11:10 Palm Springs (PSP) 12:40 Sacramento (SMF) B WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-08-08 through 2026-09-26
Sat 15:15 Denver (DEN) 18:10 Dallas Love Field (DAL) 1 WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2026-02-14 through 2026-02-28
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 2026-01-02 through 2026-01-04
Sat 18:30 Albuquerque (ABQ) 19:20 San Diego (SAN) 1 WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-06-06 through 2026-08-01
Mon,Thu,Fri 18:30 San Francisco (SFO) 2 19:50 Burbank (BUR) WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-08-06 through 2026-09-28
Sat 18:50 Dallas Love Field (DAL) 1 22:20 Orlando (MCO) WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-02-14 through 2026-02-28
Tue,Wed 19:15 Albuquerque (ABQ) 20:10 San Diego (SAN) 1 WN 4521 Non-stop Boeing 737-800 (73H) 1:55 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 20:10 Albuquerque (ABQ) 21:00 San Diego (SAN) 1 WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-06-04 through 2026-08-03
Sun 20:10 Albuquerque (ABQ) 21:00 San Diego (SAN) 1 WN 4521 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-06-07 through 2026-08-02
Mon 22:35 Las Vegas Harry Reid (LAS) 1 00:10 Oakland (OAK) 2 WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Operates only on 2026-01-05 The flight arrives 1 day after departure.
Sat 22:35 Las Vegas Harry Reid (LAS) 1 23:50 Los Angeles (LAX) 1 WN 4521 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2026-03-07 through 2026-04-04
Sat 22:45 Dallas Love Field (DAL) 1 00:10 Memphis (MEM) WN 4521 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2026-01-03 The flight arrives 1 day after departure.
Non-Direct Flights:
Sat 15:15 Denver (DEN) 22:20 Orlando (MCO) WN 4521 1-stop Boeing 737 MAX 8 (7M8) 5:05 Effective 2026-02-14 through 2026-02-28

This flight number is listed as serving the following routes:

Albuquerque (ABQ) - San Diego (SAN)
Dallas Love Field (DAL) - Memphis (MEM)
Dallas Love Field (DAL) - Orlando (MCO)
Denver (DEN) - Dallas Love Field (DAL)
Denver (DEN) - Orlando (MCO)
Las Vegas Harry Reid (LAS) - Los Angeles (LAX)
Las Vegas Harry Reid (LAS) - Oakland (OAK)
Palm Springs (PSP) - Sacramento (SMF)
Saint Louis (STL) - Tampa (TPA)
San Francisco (SFO) - Burbank (BUR)
Santa Ana (SNA) - Phoenix Sky Harbor (PHX)

All Southwest Airlines flights

Feedback - Disclaimer - Privacy

Southwest Airlines flight WN 4521: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN4521

08:35

San Francisco (SFO) 2

10:00

Burbank (BUR)

Effective 2026-08-04 through 2026-09-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4521

08:45

Saint Louis (STL) 2

12:00

Tampa (TPA)

Effective 2026-04-11 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4521

10:20

Saint Louis (STL) 2

13:40

Tampa (TPA)

Effective 2026-04-07 through 2026-06-03

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4521

10:20

Saint Louis (STL) 2

13:40

Tampa (TPA)

Effective 2026-04-12 through 2026-05-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4521

10:20

Saint Louis (STL) 2

13:40

Tampa (TPA)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4521

10:25

Saint Louis (STL) 2

13:40

Tampa (TPA)

Effective 2026-04-09 through 2026-06-01

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4521

11:05

Saint Louis (STL) 2

14:20

Tampa (TPA)

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4521

11:10

Palm Springs (PSP)

12:40

Sacramento (SMF) B

Effective 2026-08-08 through 2026-09-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4521

15:15

Denver (DEN)

18:10

Dallas Love Field (DAL) 1

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4521

17:40

Santa Ana (SNA)

20:00

Phoenix Sky Harbor (PHX) 4

Effective 2026-01-02 through 2026-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4521

18:30

Albuquerque (ABQ)

19:20

San Diego (SAN) 1

Effective 2026-06-06 through 2026-08-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4521

18:30

San Francisco (SFO) 2

19:50

Burbank (BUR)

Effective 2026-08-06 through 2026-09-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4521

18:50

Dallas Love Field (DAL) 1

22:20

Orlando (MCO)

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4521

19:15

Albuquerque (ABQ)

20:10

San Diego (SAN) 1

Effective 2026-06-09 through 2026-07-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4521

20:10

Albuquerque (ABQ)

21:00

San Diego (SAN) 1

Effective 2026-06-04 through 2026-08-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4521

20:10

Albuquerque (ABQ)

21:00

San Diego (SAN) 1

Effective 2026-06-07 through 2026-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4521

22:35

Las Vegas Harry Reid (LAS) 1

00:10(+1)

Oakland (OAK) 2

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN4521

22:35

Las Vegas Harry Reid (LAS) 1

23:50

Los Angeles (LAX) 1

Effective 2026-03-07 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4521

22:45

Dallas Love Field (DAL) 1

00:10(+1)

Memphis (MEM)

Operates only on 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.

Non-Direct Flights:

Southwest Airlines WN4521

15:15

Denver (DEN)

22:20

Orlando (MCO)

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 5:05, 1-stop
Boeing 737 MAX 8 (7M8)

This flight number is listed as serving the following routes:

Albuquerque (ABQ) - San Diego (SAN)
Dallas Love Field (DAL) - Memphis (MEM)
Dallas Love Field (DAL) - Orlando (MCO)
Denver (DEN) - Dallas Love Field (DAL)
Denver (DEN) - Orlando (MCO)
Las Vegas Harry Reid (LAS) - Los Angeles (LAX)
Las Vegas Harry Reid (LAS) - Oakland (OAK)
Palm Springs (PSP) - Sacramento (SMF)
Saint Louis (STL) - Tampa (TPA)
San Francisco (SFO) - Burbank (BUR)
Santa Ana (SNA) - Phoenix Sky Harbor (PHX)

All Southwest Airlines flights

Feedback - Disclaimer - Privacy