Southwest Airlines flight WN 3981: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sun 06:30 Las Vegas Harry Reid (LAS) 1 09:25 Denver (DEN) WN 3981 Non-stop Boeing 737-800 (73H) 1:55 Effective 2026-03-08 through 2026-04-05
Tue,Wed 06:45 Las Vegas Harry Reid (LAS) 1 09:35 Denver (DEN) WN 3981 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-03-10 through 2026-04-01
Sat 06:50 Las Vegas Harry Reid (LAS) 1 09:40 Denver (DEN) WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 1:50 Effective 2026-03-07 through 2026-04-04
Mon,Thu,Fri 07:35 Las Vegas Harry Reid (LAS) 1 10:25 Denver (DEN) WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 1:50 Effective 2026-03-05 through 2026-04-06
Mon,Tue,Fri,Sun 08:20 Tampa (TPA) 10:05 Raleigh/Durham (RDU) 1 WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Valid until 2026-01-04
Tue,Wed 09:50 Atlanta (ATL) N 11:00 Dallas Love Field (DAL) 1 WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-08-04 through 2026-09-30
Mon,Thu,Fri 11:40 Saint Louis (STL) 2 13:55 Seattle-Tacoma (SEA) WN 3981 Non-stop Boeing 737-800 (73H) 4:15 Effective 2026-06-04 through 2026-08-03
Sun 12:00 Saint Louis (STL) 2 14:15 Seattle-Tacoma (SEA) WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 4:15 Effective 2026-06-07 through 2026-08-02
Sat 12:05 Saint Louis (STL) 2 14:20 Seattle-Tacoma (SEA) WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 4:15 Effective 2026-06-06 through 2026-08-01
Tue,Wed 12:05 Saint Louis (STL) 2 14:20 Seattle-Tacoma (SEA) WN 3981 Non-stop Boeing 737-800 (73H) 4:15 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri,Sun 12:10 Chicago Midway (MDW) 14:05 Las Vegas Harry Reid (LAS) 1 WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2026-04-09 through 2026-05-22
Mon,Thu,Fri,Sun 12:10 Chicago Midway (MDW) 14:05 Las Vegas Harry Reid (LAS) 1 WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2026-05-25 through 2026-06-01
Sun 13:00 Chicago Midway (MDW) 14:55 Las Vegas Harry Reid (LAS) 1 WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 3:55 Operates only on 2026-05-24
Sat 13:10 Atlanta (ATL) N 14:15 Dallas Love Field (DAL) 1 WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-08-08 through 2026-09-26
Sun 14:50 Tampa (TPA) 15:45 Nashville (BNA) WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-08-09 through 2026-09-27
Tue,Wed 15:00 Seattle-Tacoma (SEA) 17:45 San Diego (SAN) 1 WN 3981 Non-stop Boeing 737-800 (73H) 2:45 Effective 2026-06-09 through 2026-07-29
Sat 15:05 San Diego (SAN) 1 16:50 Sacramento (SMF) B WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 16:10 San Diego (SAN) 1 17:50 Sacramento (SMF) B WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 16:10 San Diego (SAN) 1 17:50 Sacramento (SMF) B WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-02-20 through 2026-03-01
Sat 17:35 Orlando (MCO) 20:15 Detroit (DTW) E WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2026-04-11 through 2026-05-30
Mon,Thu,Fri 18:45 Atlanta (ATL) N 19:50 Dallas Love Field (DAL) 1 WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-08-06 through 2026-09-28
Thu,Fri,Sun 18:50 Saint Louis (STL) 2 20:40 New Orleans (MSY) WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-01-11 through 2026-01-16
Mon,Sun 18:50 Saint Louis (STL) 2 20:40 New Orleans (MSY) WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 18:50 Saint Louis (STL) 2 20:40 New Orleans (MSY) WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-02-01 through 2026-02-06
Mon 18:50 Saint Louis (STL) 2 20:40 New Orleans (MSY) WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Operates only on 2026-02-09
Sun 18:50 Saint Louis (STL) 2 20:40 New Orleans (MSY) WN 3981 Non-stop Boeing 737 MAX 8 (7M8) 1:50 Operates only on 2026-02-15
Mon,Tue,Thu 18:50 Saint Louis (STL) 2 20:40 New Orleans (MSY) WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-02-17 through 2026-02-23
Mon 18:50 Saint Louis (STL) 2 20:40 New Orleans (MSY) WN 3981 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Operates only on 2026-03-02
Non-Direct Flights:
Tue,Wed 12:05 Saint Louis (STL) 2 17:45 San Diego (SAN) 1 WN 3981 1-stop Boeing 737-800 (73H) 7:40 Effective 2026-06-09 through 2026-07-29

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This flight number is listed as serving the following routes:

Atlanta (ATL) - Dallas Love Field (DAL)
Chicago Midway (MDW) - Las Vegas Harry Reid (LAS)
Las Vegas Harry Reid (LAS) - Denver (DEN)
Orlando (MCO) - Detroit (DTW)
Saint Louis (STL) - New Orleans (MSY)
Saint Louis (STL) - San Diego (SAN)
Saint Louis (STL) - Seattle-Tacoma (SEA)
San Diego (SAN) - Sacramento (SMF)
Seattle-Tacoma (SEA) - San Diego (SAN)
Tampa (TPA) - Nashville (BNA)
Tampa (TPA) - Raleigh/Durham (RDU)

All Southwest Airlines flights

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Southwest Airlines flight WN 3981: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3981

06:30

Las Vegas Harry Reid (LAS) 1

09:25

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3981

06:45

Las Vegas Harry Reid (LAS) 1

09:35

Denver (DEN)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3981

06:50

Las Vegas Harry Reid (LAS) 1

09:40

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3981

07:35

Las Vegas Harry Reid (LAS) 1

10:25

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3981

08:20

Tampa (TPA)

10:05

Raleigh/Durham (RDU) 1

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3981

09:50

Atlanta (ATL) N

11:00

Dallas Love Field (DAL) 1

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3981

11:40

Saint Louis (STL) 2

13:55

Seattle-Tacoma (SEA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3981

12:00

Saint Louis (STL) 2

14:15

Seattle-Tacoma (SEA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3981

12:05

Saint Louis (STL) 2

14:20

Seattle-Tacoma (SEA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3981

12:05

Saint Louis (STL) 2

14:20

Seattle-Tacoma (SEA)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3981

12:10

Chicago Midway (MDW)

14:05

Las Vegas Harry Reid (LAS) 1

Effective 2026-04-09 through 2026-05-22

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3981

12:10

Chicago Midway (MDW)

14:05

Las Vegas Harry Reid (LAS) 1

Effective 2026-05-25 through 2026-06-01

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3981

13:00

Chicago Midway (MDW)

14:55

Las Vegas Harry Reid (LAS) 1

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3981

13:10

Atlanta (ATL) N

14:15

Dallas Love Field (DAL) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3981

14:50

Tampa (TPA)

15:45

Nashville (BNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3981

15:00

Seattle-Tacoma (SEA)

17:45

San Diego (SAN) 1

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3981

15:05

San Diego (SAN) 1

16:50

Sacramento (SMF) B

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3981

16:10

San Diego (SAN) 1

17:50

Sacramento (SMF) B

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3981

16:10

San Diego (SAN) 1

17:50

Sacramento (SMF) B

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3981

17:35

Orlando (MCO)

20:15

Detroit (DTW) E

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3981

18:45

Atlanta (ATL) N

19:50

Dallas Love Field (DAL) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3981

18:50

Saint Louis (STL) 2

20:40

New Orleans (MSY)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3981

18:50

Saint Louis (STL) 2

20:40

New Orleans (MSY)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3981

18:50

Saint Louis (STL) 2

20:40

New Orleans (MSY)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3981

18:50

Saint Louis (STL) 2

20:40

New Orleans (MSY)

Operates only on 2026-02-09

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3981

18:50

Saint Louis (STL) 2

20:40

New Orleans (MSY)

Operates only on 2026-02-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3981

18:50

Saint Louis (STL) 2

20:40

New Orleans (MSY)

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

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3981

18:50

Saint Louis (STL) 2

20:40

New Orleans (MSY)

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Non-Direct Flights:

Southwest Airlines WN3981

12:05

Saint Louis (STL) 2

17:45

San Diego (SAN) 1

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 7:40, 1-stop
Boeing 737-800 (73H)

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Parallax here

This flight number is listed as serving the following routes:

Atlanta (ATL) - Dallas Love Field (DAL)
Chicago Midway (MDW) - Las Vegas Harry Reid (LAS)
Las Vegas Harry Reid (LAS) - Denver (DEN)
Orlando (MCO) - Detroit (DTW)
Saint Louis (STL) - New Orleans (MSY)
Saint Louis (STL) - San Diego (SAN)
Saint Louis (STL) - Seattle-Tacoma (SEA)
San Diego (SAN) - Sacramento (SMF)
Seattle-Tacoma (SEA) - San Diego (SAN)
Tampa (TPA) - Nashville (BNA)
Tampa (TPA) - Raleigh/Durham (RDU)

All Southwest Airlines flights

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