Southwest Airlines flight WN 2431: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 05:30 Milwaukee (MKE) 07:25 Denver (DEN) WN 2431 Non-stop Boeing 737-800 (73H) 2:55 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 05:40 Milwaukee (MKE) 07:30 Denver (DEN) WN 2431 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2026-03-05 through 2026-04-06
Sun 05:55 Milwaukee (MKE) 07:45 Denver (DEN) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-03-08 through 2026-04-05
Sat 06:00 Milwaukee (MKE) 07:50 Denver (DEN) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-03-07 through 2026-04-04
Wed,Thu 07:40 Washington Dulles (IAD) 09:30 Denver (DEN) WN 2431 Non-stop Boeing 737-800 (73H) 3:50 Valid until 2026-01-01
Mon,Thu,Fri 08:15 Ronald Reagan Washington (DCA) 1 09:35 Saint Louis (STL) 2 WN 2431 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-08-06 through 2026-09-28
Mon,Thu,Fri 09:00 Los Angeles (LAX) 1 10:15 San Jose (SJC) B WN 2431 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-06-04 through 2026-08-03
Tue,Wed 09:30 Los Angeles (LAX) 1 10:40 San Jose (SJC) B WN 2431 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 09:35 Nashville (BNA) 12:10 Raleigh/Durham (RDU) 1 WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-04-09 through 2026-06-01
Sun 09:35 Nashville (BNA) 12:10 Raleigh/Durham (RDU) 1 WN 2431 Non-stop Boeing 737-800 (73H) 1:35 Effective 2026-04-12 through 2026-05-17
Sun 09:35 Nashville (BNA) 12:10 Raleigh/Durham (RDU) 1 WN 2431 Non-stop Boeing 737-800 (73H) 1:35 Operates only on 2026-05-31
Sat 09:40 Nashville (BNA) 12:15 Raleigh/Durham (RDU) 1 WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-04-11 through 2026-05-30
Sun 11:00 Nashville (BNA) 13:30 Raleigh/Durham (RDU) 1 WN 2431 Non-stop Boeing 737-800 (73H) 1:30 Operates only on 2026-05-24
Sat 13:30 Baltimore (BWI) 16:15 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-01-10 through 2026-02-07
Mon-Fri 13:40 Baltimore (BWI) 16:25 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 13:40 Baltimore (BWI) 16:25 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-01-18 through 2026-01-23
Mon-Fri 13:40 Baltimore (BWI) 16:25 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 13:40 Baltimore (BWI) 16:25 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-02-08 through 2026-02-11
Tue,Wed 13:40 Baltimore (BWI) 16:25 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-02-18 through 2026-03-04
Thu,Fri,Sun 14:25 Baltimore (BWI) 17:05 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-01-11 through 2026-01-16
Mon,Sun 14:25 Baltimore (BWI) 17:05 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 14:25 Baltimore (BWI) 17:05 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-02-01 through 2026-02-06
Mon,Sun 14:25 Baltimore (BWI) 17:05 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 14:25 Baltimore (BWI) 17:05 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-02-17 through 2026-02-23
Mon 14:25 Baltimore (BWI) 17:05 West Palm Beach (PBI) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2026-03-02
Sat 15:15 San Diego (SAN) 1 17:40 Portland (PDX) WN 2431 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-08-08 through 2026-09-26
Tue 16:35 San Diego (SAN) 1 19:00 Portland (PDX) WN 2431 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-08-04 through 2026-09-29
Sun 16:55 San Diego (SAN) 1 19:20 Portland (PDX) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-08-09 through 2026-09-27
Thu,Fri 19:30 Midland (MAF) 21:00 Houston Hobby (HOU) WN 2431 Non-stop Boeing 737-800 (73H) 1:30 Effective 2026-02-12 through 2026-02-13
Mon 19:30 Midland (MAF) 21:00 Houston Hobby (HOU) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2026-02-16
Thu,Fri,Sun 19:30 Midland (MAF) 21:00 Houston Hobby (HOU) WN 2431 Non-stop Boeing 737-800 (73H) 1:30 Effective 2026-02-20 through 2026-03-01
Sat 19:45 Washington Dulles (IAD) 21:35 Denver (DEN) WN 2431 Non-stop Boeing 737-800 (73H) 3:50 Valid until 2026-01-03
Mon,Tue,Fri,Sun 19:50 Washington Dulles (IAD) 21:40 Denver (DEN) WN 2431 Non-stop Boeing 737-800 (73H) 3:50 Valid until 2026-01-04
Mon 19:50 Washington Dulles (IAD) 21:40 Denver (DEN) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Operates only on 2026-01-05
Sun 21:25 Phoenix Sky Harbor (PHX) 4 01:40 Austin (AUS) WN 2431 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-06-07 through 2026-08-02 The flight arrives 1 day after departure.

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This flight number is listed as serving the following routes:

Baltimore (BWI) - West Palm Beach (PBI)
Los Angeles (LAX) - San Jose (SJC)
Midland (MAF) - Houston Hobby (HOU)
Milwaukee (MKE) - Denver (DEN)
Nashville (BNA) - Raleigh/Durham (RDU)
Phoenix Sky Harbor (PHX) - Austin (AUS)
Ronald Reagan Washington (DCA) - Saint Louis (STL)
San Diego (SAN) - Portland (PDX)
Washington Dulles (IAD) - Denver (DEN)

All Southwest Airlines flights

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Southwest Airlines flight WN 2431: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN2431

05:30

Milwaukee (MKE)

07:25

Denver (DEN)

Effective 2026-03-10 through 2026-04-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2431

05:40

Milwaukee (MKE)

07:30

Denver (DEN)

Effective 2026-03-05 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN2431

05:55

Milwaukee (MKE)

07:45

Denver (DEN)

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

06:00

Milwaukee (MKE)

07:50

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

07:40

Washington Dulles (IAD)

09:30

Denver (DEN)

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2431

08:15

Ronald Reagan Washington (DCA) 1

09:35

Saint Louis (STL) 2

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN2431

09:00

Los Angeles (LAX) 1

10:15

San Jose (SJC) B

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN2431

09:30

Los Angeles (LAX) 1

10:40

San Jose (SJC) B

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN2431

09:35

Nashville (BNA)

12:10

Raleigh/Durham (RDU) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

09:35

Nashville (BNA)

12:10

Raleigh/Durham (RDU) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN2431

09:35

Nashville (BNA)

12:10

Raleigh/Durham (RDU) 1

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN2431

09:40

Nashville (BNA)

12:15

Raleigh/Durham (RDU) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

11:00

Nashville (BNA)

13:30

Raleigh/Durham (RDU) 1

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN2431

13:30

Baltimore (BWI)

16:15

West Palm Beach (PBI)

Effective 2026-01-10 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN2431

13:40

Baltimore (BWI)

16:25

West Palm Beach (PBI)

Effective 2026-01-06 through 2026-01-14

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

13:40

Baltimore (BWI)

16:25

West Palm Beach (PBI)

Effective 2026-01-18 through 2026-01-23

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

13:40

Baltimore (BWI)

16:25

West Palm Beach (PBI)

Effective 2026-01-26 through 2026-02-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

13:40

Baltimore (BWI)

16:25

West Palm Beach (PBI)

Effective 2026-02-08 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

13:40

Baltimore (BWI)

16:25

West Palm Beach (PBI)

Effective 2026-02-18 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

14:25

Baltimore (BWI)

17:05

West Palm Beach (PBI)

Effective 2026-01-11 through 2026-01-16

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

14:25

Baltimore (BWI)

17:05

West Palm Beach (PBI)

Effective 2026-01-19 through 2026-01-25

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

14:25

Baltimore (BWI)

17:05

West Palm Beach (PBI)

Effective 2026-02-01 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

14:25

Baltimore (BWI)

17:05

West Palm Beach (PBI)

Effective 2026-02-09 through 2026-02-15

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

14:25

Baltimore (BWI)

17:05

West Palm Beach (PBI)

Effective 2026-02-17 through 2026-02-23

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

14:25

Baltimore (BWI)

17:05

West Palm Beach (PBI)

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

15:15

San Diego (SAN) 1

17:40

Portland (PDX)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN2431

16:35

San Diego (SAN) 1

19:00

Portland (PDX)

Effective 2026-08-04 through 2026-09-29

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN2431

16:55

San Diego (SAN) 1

19:20

Portland (PDX)

Effective 2026-08-09 through 2026-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

19:30

Midland (MAF)

21:00

Houston Hobby (HOU)

Effective 2026-02-12 through 2026-02-13

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN2431

19:30

Midland (MAF)

21:00

Houston Hobby (HOU)

Operates only on 2026-02-16

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

19:30

Midland (MAF)

21:00

Houston Hobby (HOU)

Effective 2026-02-20 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN2431

19:45

Washington Dulles (IAD)

21:35

Denver (DEN)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2431

19:50

Washington Dulles (IAD)

21:40

Denver (DEN)

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN2431

19:50

Washington Dulles (IAD)

21:40

Denver (DEN)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN2431

21:25

Phoenix Sky Harbor (PHX) 4

01:40(+1)

Austin (AUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

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Parallax here

This flight number is listed as serving the following routes:

Baltimore (BWI) - West Palm Beach (PBI)
Los Angeles (LAX) - San Jose (SJC)
Midland (MAF) - Houston Hobby (HOU)
Milwaukee (MKE) - Denver (DEN)
Nashville (BNA) - Raleigh/Durham (RDU)
Phoenix Sky Harbor (PHX) - Austin (AUS)
Ronald Reagan Washington (DCA) - Saint Louis (STL)
San Diego (SAN) - Portland (PDX)
Washington Dulles (IAD) - Denver (DEN)

All Southwest Airlines flights

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