Southwest Airlines flight WN 1851: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Mon-Fri 09:50 Honolulu (HNL) 2 10:40 Kahului (OGG)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 0:50 Effective 2026-06-04 through 2026-08-03
Sat,Sun 10:00 Honolulu (HNL) 2 10:50 Kahului (OGG)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 0:50 Effective 2026-06-06 through 2026-08-02
Mon,Thu,Fri 10:10 Houston Hobby (HOU) 11:15 San Antonio (SAT) A
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-03-05 through 2026-04-06
Sun 10:15 Houston Hobby (HOU) 11:20 San Antonio (SAT) A
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 1:05 Effective 2026-03-08 through 2026-04-05
Tue,Wed 10:15 Houston Hobby (HOU) 11:20 San Antonio (SAT) A
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-03-10 through 2026-04-01
Mon 11:45 Austin (AUS) 14:15 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Operates only on 2026-01-19
Sun 11:45 Austin (AUS) 14:15 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Operates only on 2026-02-01
Thu,Fri,Sun 11:50 Austin (AUS) 14:20 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-01-11 through 2026-01-16
Sun 11:50 Austin (AUS) 14:20 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Operates only on 2026-01-25
Mon,Thu,Fri 11:50 San Antonio (SAT) A 13:40 Kansas City (MCI)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-03-05 through 2026-04-06
Mon,Thu,Fri 12:00 Austin (AUS) 14:30 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-02-05 through 2026-02-09
Tue,Thu,Sun 12:00 Austin (AUS) 14:30 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-02-15 through 2026-02-19
Mon 12:00 Austin (AUS) 14:30 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-02-23 through 2026-03-02
Tue,Wed 12:00 San Antonio (SAT) A 12:35 Phoenix Sky Harbor (PHX) 4
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Effective 2026-03-10 through 2026-04-01
Tue,Wed 13:15 Phoenix Sky Harbor (PHX) 4 15:20 Sacramento (SMF) B
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-03-10 through 2026-04-01
Sat 13:55 Tampa (TPA) 14:25 Birmingham (BHM)
WN 1851 Non-stop Boeing 737-800 (73H) 1:30 Valid until 2026-01-03
Mon-Fri 14:00 Austin (AUS) 16:30 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 14:00 Austin (AUS) 16:30 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-01-18 through 2026-01-23
Mon-Fri 14:00 Austin (AUS) 16:30 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 14:00 Austin (AUS) 16:30 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-02-08 through 2026-02-11
Tue,Wed 14:00 Austin (AUS) 16:30 Chicago Midway (MDW)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-02-18 through 2026-03-04
Mon,Thu,Fri 14:15 Kansas City (MCI) 16:40 Indianapolis (IND)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-03-05 through 2026-04-06
Wed,Thu 14:25 Tampa (TPA) 14:55 Birmingham (BHM)
WN 1851 Non-stop Boeing 737-800 (73H) 1:30 Valid until 2026-01-01
Sat 15:05 Birmingham (BHM) 17:20 Las Vegas Harry Reid (LAS) 1
WN 1851 Non-stop Boeing 737-800 (73H) 4:15 Valid until 2026-01-03
Wed,Thu 15:35 Birmingham (BHM) 18:30 Baltimore (BWI)
WN 1851 Non-stop Boeing 737-800 (73H) 1:55 Valid until 2026-01-01
Mon,Thu,Fri 15:35 Houston Hobby (HOU) 19:00 John Glenn Columbus (CMH)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 15:35 Houston Hobby (HOU) 19:00 John Glenn Columbus (CMH)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-20 through 2026-03-01
Mon 16:35 Tampa (TPA) 17:05 Birmingham (BHM)
WN 1851 Non-stop Boeing 737-800 (73H) 1:30 Operates only on 2026-01-05
Fri,Sun 17:15 Tampa (TPA) 17:45 Birmingham (BHM)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-01-02 through 2026-01-04
Mon,Thu,Fri 17:15 Indianapolis (IND) 18:50 Baltimore (BWI)
WN 1851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-03-05 through 2026-04-06
Sat 17:15 Indianapolis (IND) 18:50 Baltimore (BWI)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-03-07 through 2026-04-04
Daily 17:15 Honolulu (HNL) 2 18:05 Kona (KOA)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 0:50 Effective 2026-08-04 through 2026-09-30
Sat 19:20 Houston Hobby (HOU) 22:45 John Glenn Columbus (CMH)
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-14 through 2026-02-28
Daily 21:10 Lihue (LIH) 05:30 Oakland (OAK) 2
WN 1851 Non-stop Boeing 737 MAX 8 (7M8) 5:20 Effective 2026-04-07 through 2026-06-03
The flight arrives 1 day after departure.
Non-Direct Flights:
Mon,Thu,Fri 10:10 Houston Hobby (HOU) 13:40 Kansas City (MCI)
WN 1851 1-stop Boeing 737-700 (Scimitar Winglets) 3:30 Effective 2026-03-05 through 2026-04-06
Tue,Wed 10:15 Houston Hobby (HOU) 12:35 Phoenix Sky Harbor (PHX) 4
WN 1851 1-stop Boeing 737-700 (Scimitar Winglets) 4:20 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 11:50 San Antonio (SAT) A 16:40 Indianapolis (IND)
WN 1851 1-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2026-03-05 through 2026-04-06
Tue,Wed 12:00 San Antonio (SAT) A 15:20 Sacramento (SMF) B
WN 1851 1-stop Boeing 737-700 (Scimitar Winglets) 5:20 Effective 2026-03-10 through 2026-04-01
Sat 13:55 Tampa (TPA) 17:20 Las Vegas Harry Reid (LAS) 1
WN 1851 1-stop Boeing 737-800 (73H) 6:25 Valid until 2026-01-03
Mon,Thu,Fri 14:15 Kansas City (MCI) 18:50 Baltimore (BWI)
WN 1851 1-stop Boeing 737-700 (Scimitar Winglets) 3:35 Effective 2026-03-05 through 2026-04-06
Wed,Thu 14:25 Tampa (TPA) 18:30 Baltimore (BWI)
WN 1851 1-stop Boeing 737-800 (73H) 4:05 Valid until 2026-01-01
Mon,Thu,Fri 10:10 Houston Hobby (HOU) 16:40 Indianapolis (IND)
WN 1851 2-stop Boeing 737-700 (Scimitar Winglets) 5:30 Effective 2026-03-05 through 2026-04-06
Tue,Wed 10:15 Houston Hobby (HOU) 15:20 Sacramento (SMF) B
WN 1851 2-stop Boeing 737-700 (Scimitar Winglets) 7:05 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 11:50 San Antonio (SAT) A 18:50 Baltimore (BWI)
WN 1851 2-stop Boeing 737-700 (Scimitar Winglets) 6:00 Effective 2026-03-05 through 2026-04-06
Mon,Thu,Fri 10:10 Houston Hobby (HOU) 18:50 Baltimore (BWI)
WN 1851 3-stop Boeing 737-700 (Scimitar Winglets) 7:40 Effective 2026-03-05 through 2026-04-06
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This flight number is listed as serving the following routes:
Southwest Airlines flight WN 1851: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Southwest Airlines WN1851
Effective 2026-06-04 through 2026-08-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 0:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-06-06 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 0:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Operates only on 2026-01-19
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Operates only on 2026-02-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Operates only on 2026-01-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-02-05 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-02-15 through 2026-02-19
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-02-23 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-01-18 through 2026-01-23
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-02-08 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1851
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1851
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-01-02 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
17:15

18:05
Effective 2026-08-04 through 2026-09-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1851
21:10

05:30(+1)
Effective 2026-04-07 through 2026-06-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:20, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Non-Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:30, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:20, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:50, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:20, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1851
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:25, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1851
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:05, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:30, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:05, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 6:00, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN1851
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 7:40, 3-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Austin (AUS) - Chicago Midway (MDW)
  • Birmingham (BHM) - Baltimore (BWI)
  • Birmingham (BHM) - Las Vegas Harry Reid (LAS)
  • Honolulu (HNL) - Kahului (OGG)
  • Honolulu (HNL) - Kona (KOA)
  • Houston Hobby (HOU) - Baltimore (BWI)
  • Houston Hobby (HOU) - Indianapolis (IND)
  • Houston Hobby (HOU) - John Glenn Columbus (CMH)
  • Houston Hobby (HOU) - Kansas City (MCI)
  • Houston Hobby (HOU) - Phoenix Sky Harbor (PHX)
  • Houston Hobby (HOU) - Sacramento (SMF)
  • Houston Hobby (HOU) - San Antonio (SAT)
  • Indianapolis (IND) - Baltimore (BWI)
  • Kansas City (MCI) - Baltimore (BWI)
  • Kansas City (MCI) - Indianapolis (IND)
  • Lihue (LIH) - Oakland (OAK)
  • Phoenix Sky Harbor (PHX) - Sacramento (SMF)
  • San Antonio (SAT) - Baltimore (BWI)
  • San Antonio (SAT) - Indianapolis (IND)
  • San Antonio (SAT) - Kansas City (MCI)
  • San Antonio (SAT) - Phoenix Sky Harbor (PHX)
  • San Antonio (SAT) - Sacramento (SMF)
  • Tampa (TPA) - Baltimore (BWI)
  • Tampa (TPA) - Birmingham (BHM)
  • Tampa (TPA) - Las Vegas Harry Reid (LAS)