Southwest Airlines flight WN 603: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Thu 05:35 Portland (PWM) 07:20 Baltimore (BWI) WN 603 Non-stop Boeing 737-800 (73H) 1:45 Operates only on 2025-11-27
Mon,Thu,Fri 05:55 San Antonio (SAT) A 08:10 Nashville (BNA) WN 603 Non-stop Boeing 737-700 (73W) 2:15 Valid until 2025-06-02
Mon,Thu,Fri 06:00 Reno (RNO) 09:15 Denver (DEN) WN 603 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-10-02 through 2025-10-31
Sat 06:30 San Antonio (SAT) A 08:45 Nashville (BNA) WN 603 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Valid until 2025-05-31
Sun 07:05 San Antonio (SAT) A 09:20 Nashville (BNA) WN 603 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Valid until 2025-05-18
Sun 07:05 San Antonio (SAT) A 09:20 Nashville (BNA) WN 603 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Operates only on 2025-06-01
Sun 08:05 San Antonio (SAT) A 10:20 Nashville (BNA) WN 603 Non-stop Boeing 737-800 (73H) 2:15 Operates only on 2025-05-25
Sun 08:10 Milwaukee (MKE) 11:00 Ronald Reagan Washington (DCA) WN 603 Non-stop Boeing 737-700 (73W) 1:50 Effective 2025-08-10 through 2025-08-24
Sun 08:10 Milwaukee (MKE) 11:00 Ronald Reagan Washington (DCA) WN 603 Non-stop Boeing 737-700 (73W) 1:50 Effective 2025-09-07 through 2025-09-28
Sun 08:15 Milwaukee (MKE) 11:05 Ronald Reagan Washington (DCA) WN 603 Non-stop Boeing 737-700 (73W) 1:50 Operates only on 2025-08-31
Tue,Wed 10:10 Reno (RNO) 13:20 Denver (DEN) WN 603 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-10-07 through 2025-10-29
Tue,Wed 10:15 Orlando (MCO) 12:10 Denver (DEN) WN 603 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2025-06-10 through 2025-07-30
Sun 10:40 Baltimore (BWI) 12:10 Manchester (MHT) WN 603 Non-stop Boeing 737-800 (73H) 1:30 Effective 2025-10-05 through 2025-10-26
Sat 10:45 Baltimore (BWI) 12:15 Manchester (MHT) WN 603 Non-stop Boeing 737-800 (73H) 1:30 Effective 2025-10-04 through 2025-11-01
Sun 11:35 Ronald Reagan Washington (DCA) 14:00 Tampa (TPA) WN 603 Non-stop Boeing 737-700 (73W) 2:25 Effective 2025-08-10 through 2025-08-24
Sun 11:35 Ronald Reagan Washington (DCA) 14:00 Tampa (TPA) WN 603 Non-stop Boeing 737-700 (73W) 2:25 Effective 2025-09-07 through 2025-09-28
Sun 11:45 Ronald Reagan Washington (DCA) 14:10 Tampa (TPA) WN 603 Non-stop Boeing 737-700 (73W) 2:25 Operates only on 2025-08-31
Mon,Thu,Fri 12:05 Orlando (MCO) 14:00 Denver (DEN) WN 603 Non-stop Boeing 737-800 (73H) 3:55 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 12:05 Orlando (MCO) 14:00 Denver (DEN) WN 603 Non-stop Boeing 737-800 (73H) 3:55 Effective 2025-07-07 through 2025-08-04
Fri 12:10 Orlando (MCO) 14:05 Denver (DEN) WN 603 Non-stop Boeing 737-800 (73H) 3:55 Operates only on 2025-07-04
Sat 13:00 Orlando (MCO) 14:55 Denver (DEN) WN 603 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2025-06-07 through 2025-08-02
Sat 13:00 Manchester (MHT) 16:20 Tampa (TPA) WN 603 Non-stop Boeing 737-800 (73H) 3:20 Effective 2025-10-04 through 2025-11-01
Sun 13:40 Denver (DEN) 16:35 Love Field, Dallas (DAL) 1 WN 603 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2025-06-08 through 2025-08-03
Sun 14:40 Tampa (TPA) 16:20 San Antonio (SAT) A WN 603 Non-stop Boeing 737-700 (73W) 2:40 Effective 2025-08-10 through 2025-08-24
Sun 14:40 Tampa (TPA) 16:20 San Antonio (SAT) A WN 603 Non-stop Boeing 737-700 (73W) 2:40 Effective 2025-09-07 through 2025-09-28
Tue,Wed 15:40 San Antonio (SAT) A 17:55 Nashville (BNA) WN 603 Non-stop Boeing 737-800 (73H) 2:15 Valid until 2025-06-04
Sat 16:05 Tampa (TPA) 17:45 San Antonio (SAT) A WN 603 Non-stop Boeing 737-700 (73W) 2:40 Effective 2025-08-09 through 2025-09-27
Tue,Wed 17:25 Pittsburgh (PIT) 19:30 Austin (AUS) WN 603 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-08-05 through 2025-10-01
Mon,Thu,Fri 17:35 Pittsburgh (PIT) 19:40 Austin (AUS) WN 603 Non-stop Boeing 737-700 (73W) 3:05 Effective 2025-08-07 through 2025-09-29
Tue,Wed 17:50 Austin (AUS) 18:50 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-11-04 through 2025-11-12
Mon-Thu 17:50 Austin (AUS) 18:50 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-11-17 through 2025-11-20
Mon-Fri 17:50 Austin (AUS) 18:50 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-12-02 through 2025-12-11
Mon-Wed 17:50 Austin (AUS) 18:50 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-12-15 through 2025-12-17
Wed,Thu 17:50 Austin (AUS) 18:50 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-12-24 through 2026-01-01
Sat 18:00 Austin (AUS) 19:00 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-11-08 through 2025-11-15
Sat 18:00 Austin (AUS) 19:00 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-12-06 through 2025-12-13
Mon-Wed 19:55 Long Beach (LGB) 21:10 San Jose (SJC) B WN 603 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 19:55 Long Beach (LGB) 21:10 San Jose (SJC) B WN 603 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-12-19 through 2026-01-04
Mon,Thu,Fri,Sun 20:05 Austin (AUS) 21:05 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 20:05 Austin (AUS) 21:05 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-11-21 through 2025-11-28
Fri,Sun 20:05 Austin (AUS) 21:05 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-12-07 through 2025-12-14
Thu 20:05 Austin (AUS) 21:05 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Operates only on 2025-12-18
Mon 20:05 Austin (AUS) 21:05 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Operates only on 2026-01-05
Sun 20:55 Austin (AUS) 21:55 Las Vegas Harry Reid (LAS) 1 WN 603 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Operates only on 2025-11-30
Non-Direct Flights:
Sun 08:10 Milwaukee (MKE) 14:00 Tampa (TPA) WN 603 1-stop Boeing 737-700 (73W) 4:50 Effective 2025-08-10 through 2025-08-24
Sun 08:10 Milwaukee (MKE) 14:00 Tampa (TPA) WN 603 1-stop Boeing 737-700 (73W) 4:50 Effective 2025-09-07 through 2025-09-28
Sun 08:15 Milwaukee (MKE) 14:10 Tampa (TPA) WN 603 1-stop Boeing 737-700 (73W) 4:55 Operates only on 2025-08-31
Sat 10:45 Baltimore (BWI) 16:20 Tampa (TPA) WN 603 1-stop Boeing 737-800 (73H) 5:35 Effective 2025-10-04 through 2025-11-01
Sun 11:35 Ronald Reagan Washington (DCA) 16:20 San Antonio (SAT) A WN 603 1-stop Boeing 737-700 (73W) 5:45 Effective 2025-08-10 through 2025-08-24
Sun 11:35 Ronald Reagan Washington (DCA) 16:20 San Antonio (SAT) A WN 603 1-stop Boeing 737-700 (73W) 5:45 Effective 2025-09-07 through 2025-09-28
Sun 08:10 Milwaukee (MKE) 16:20 San Antonio (SAT) A WN 603 2-stop Boeing 737-700 (73W) 8:10 Effective 2025-08-10 through 2025-08-24
Sun 08:10 Milwaukee (MKE) 16:20 San Antonio (SAT) A WN 603 2-stop Boeing 737-700 (73W) 8:10 Effective 2025-09-07 through 2025-09-28

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This flight number is listed as serving the following routes:

Austin (AUS) - Las Vegas Harry Reid (LAS)
Baltimore (BWI) - Manchester (MHT)
Baltimore (BWI) - Tampa (TPA)
Denver (DEN) - Love Field, Dallas (DAL)
Long Beach (LGB) - San Jose (SJC)
Manchester (MHT) - Tampa (TPA)
Milwaukee (MKE) - Ronald Reagan Washington (DCA)
Milwaukee (MKE) - San Antonio (SAT)
Milwaukee (MKE) - Tampa (TPA)
Orlando (MCO) - Denver (DEN)
Pittsburgh (PIT) - Austin (AUS)
Portland (PWM) - Baltimore (BWI)
Reno (RNO) - Denver (DEN)
Ronald Reagan Washington (DCA) - San Antonio (SAT)
Ronald Reagan Washington (DCA) - Tampa (TPA)
San Antonio (SAT) - Nashville (BNA)
Tampa (TPA) - San Antonio (SAT)

All Southwest Airlines flights

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Southwest Airlines flight WN 603: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN603

05:35

Portland (PWM)

07:20

Baltimore (BWI)

Operates only on 2025-11-27

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:45, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

05:55

San Antonio (SAT) A

08:10

Nashville (BNA)

Valid until 2025-06-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

06:00

Reno (RNO)

09:15

Denver (DEN)

Effective 2025-10-02 through 2025-10-31

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Southwest Airlines WN603

06:30

San Antonio (SAT) A

08:45

Nashville (BNA)

Valid until 2025-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Southwest Airlines WN603

07:05

San Antonio (SAT) A

09:20

Nashville (BNA)

Valid until 2025-05-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN603

07:05

San Antonio (SAT) A

09:20

Nashville (BNA)

Operates only on 2025-06-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN603

08:05

San Antonio (SAT) A

10:20

Nashville (BNA)

Operates only on 2025-05-25

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

08:10

Milwaukee (MKE)

11:00

Ronald Reagan Washington (DCA)

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:50, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

08:10

Milwaukee (MKE)

11:00

Ronald Reagan Washington (DCA)

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:50, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

08:15

Milwaukee (MKE)

11:05

Ronald Reagan Washington (DCA)

Operates only on 2025-08-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:50, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

10:10

Reno (RNO)

13:20

Denver (DEN)

Effective 2025-10-07 through 2025-10-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN603

10:15

Orlando (MCO)

12:10

Denver (DEN)

Effective 2025-06-10 through 2025-07-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN603

10:40

Baltimore (BWI)

12:10

Manchester (MHT)

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 WN603

10:45

Baltimore (BWI)

12:15

Manchester (MHT)

Effective 2025-10-04 through 2025-11-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:30, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

11:35

Ronald Reagan Washington (DCA)

14:00

Tampa (TPA)

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

11:35

Ronald Reagan Washington (DCA)

14:00

Tampa (TPA)

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

11:45

Ronald Reagan Washington (DCA)

14:10

Tampa (TPA)

Operates only on 2025-08-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

12:05

Orlando (MCO)

14:00

Denver (DEN)

Effective 2025-06-05 through 2025-07-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

12:05

Orlando (MCO)

14:00

Denver (DEN)

Effective 2025-07-07 through 2025-08-04

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

12:10

Orlando (MCO)

14:05

Denver (DEN)

Operates only on 2025-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

13:00

Orlando (MCO)

14:55

Denver (DEN)

Effective 2025-06-07 through 2025-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN603

13:00

Manchester (MHT)

16:20

Tampa (TPA)

Effective 2025-10-04 through 2025-11-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

13:40

Denver (DEN)

16:35

Love Field, Dallas (DAL) 1

Effective 2025-06-08 through 2025-08-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN603

14:40

Tampa (TPA)

16:20

San Antonio (SAT) A

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

14:40

Tampa (TPA)

16:20

San Antonio (SAT) A

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

15:40

San Antonio (SAT) A

17:55

Nashville (BNA)

Valid until 2025-06-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

16:05

Tampa (TPA)

17:45

San Antonio (SAT) A

Effective 2025-08-09 through 2025-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

17:25

Pittsburgh (PIT)

19:30

Austin (AUS)

Effective 2025-08-05 through 2025-10-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

17:35

Pittsburgh (PIT)

19:40

Austin (AUS)

Effective 2025-08-07 through 2025-09-29

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

17:50

Austin (AUS)

18:50

Las Vegas Harry Reid (LAS) 1

Effective 2025-11-04 through 2025-11-12

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

17:50

Austin (AUS)

18:50

Las Vegas Harry Reid (LAS) 1

Effective 2025-11-17 through 2025-11-20

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

17:50

Austin (AUS)

18:50

Las Vegas Harry Reid (LAS) 1

Effective 2025-12-02 through 2025-12-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

17:50

Austin (AUS)

18:50

Las Vegas Harry Reid (LAS) 1

Effective 2025-12-15 through 2025-12-17

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

17:50

Austin (AUS)

18:50

Las Vegas Harry Reid (LAS) 1

Effective 2025-12-24 through 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

18:00

Austin (AUS)

19:00

Las Vegas Harry Reid (LAS) 1

Effective 2025-11-08 through 2025-11-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

18:00

Austin (AUS)

19:00

Las Vegas Harry Reid (LAS) 1

Effective 2025-12-06 through 2025-12-13

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

19:55

Long Beach (LGB)

21:10

San Jose (SJC) B

Effective 2025-11-25 through 2025-12-01

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN603

19:55

Long Beach (LGB)

21:10

San Jose (SJC) B

Effective 2025-12-19 through 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN603

20:05

Austin (AUS)

21:05

Las Vegas Harry Reid (LAS) 1

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN603

20:05

Austin (AUS)

21:05

Las Vegas Harry Reid (LAS) 1

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN603

20:05

Austin (AUS)

21:05

Las Vegas Harry Reid (LAS) 1

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN603

20:05

Austin (AUS)

21:05

Las Vegas Harry Reid (LAS) 1

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN603

20:05

Austin (AUS)

21:05

Las Vegas Harry Reid (LAS) 1

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN603

20:55

Austin (AUS)

21:55

Las Vegas Harry Reid (LAS) 1

Operates only on 2025-11-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Southwest Airlines WN603

08:10

Milwaukee (MKE)

14:00

Tampa (TPA)

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:50, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

08:10

Milwaukee (MKE)

14:00

Tampa (TPA)

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:50, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

08:15

Milwaukee (MKE)

14:10

Tampa (TPA)

Operates only on 2025-08-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:55, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

10:45

Baltimore (BWI)

16:20

Tampa (TPA)

Effective 2025-10-04 through 2025-11-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 5:35, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN603

11:35

Ronald Reagan Washington (DCA)

16:20

San Antonio (SAT) A

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:45, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

11:35

Ronald Reagan Washington (DCA)

16:20

San Antonio (SAT) A

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:45, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

08:10

Milwaukee (MKE)

16:20

San Antonio (SAT) A

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 8:10, 2-stop
Boeing 737-700 (73W)

Southwest Airlines WN603

08:10

Milwaukee (MKE)

16:20

San Antonio (SAT) A

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 8:10, 2-stop
Boeing 737-700 (73W)

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This flight number is listed as serving the following routes:

Austin (AUS) - Las Vegas Harry Reid (LAS)
Baltimore (BWI) - Manchester (MHT)
Baltimore (BWI) - Tampa (TPA)
Denver (DEN) - Love Field, Dallas (DAL)
Long Beach (LGB) - San Jose (SJC)
Manchester (MHT) - Tampa (TPA)
Milwaukee (MKE) - Ronald Reagan Washington (DCA)
Milwaukee (MKE) - San Antonio (SAT)
Milwaukee (MKE) - Tampa (TPA)
Orlando (MCO) - Denver (DEN)
Pittsburgh (PIT) - Austin (AUS)
Portland (PWM) - Baltimore (BWI)
Reno (RNO) - Denver (DEN)
Ronald Reagan Washington (DCA) - San Antonio (SAT)
Ronald Reagan Washington (DCA) - Tampa (TPA)
San Antonio (SAT) - Nashville (BNA)
Tampa (TPA) - San Antonio (SAT)

All Southwest Airlines flights

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