Southwest Airlines flight WN 3873: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sun 08:40 Houston Hobby (HOU) 09:25 Phoenix Sky Harbor (PHX) 4
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-08-09 through 2026-09-27
Tue,Wed 09:00 Denver (DEN) 10:40 Bozeman (BZN)
WN 3873 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-08-04 through 2026-09-30
Mon,Thu,Fri 10:00 Luis Munoz Marin, San Juan (SJU) B 13:00 Orlando (MCO)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-08-06 through 2026-09-28
Thu,Fri,Sun 10:50 Tampa (TPA) 13:30 Islip (ISP)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-01-11 through 2026-01-16
Mon,Sun 10:50 Tampa (TPA) 13:30 Islip (ISP)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 10:50 Tampa (TPA) 13:30 Islip (ISP)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-02-01 through 2026-02-06
Mon,Sun 10:50 Tampa (TPA) 13:30 Islip (ISP)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 10:50 Tampa (TPA) 13:30 Islip (ISP)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-02-17 through 2026-02-23
Mon 10:50 Tampa (TPA) 13:30 Islip (ISP)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2026-03-02
Sun 11:10 Atlanta (ATL) N 12:40 Orlando (MCO)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-04-12 through 2026-05-17
Sun 11:10 Atlanta (ATL) N 12:40 Orlando (MCO)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2026-05-31
Sat 11:25 Atlanta (ATL) N 12:55 Orlando (MCO)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-04-11 through 2026-05-30
Sat 11:45 Tampa (TPA) 14:20 Islip (ISP)
WN 3873 Non-stop Boeing 737-800 (73H) 2:35 Effective 2026-02-14 through 2026-02-28
Sun 12:10 Atlanta (ATL) N 13:40 Orlando (MCO)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2026-05-24
Mon,Thu,Fri 14:10 Tampa (TPA) 16:45 Islip (ISP)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 14:10 Tampa (TPA) 16:45 Islip (ISP)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-02-20 through 2026-03-01
Sun 16:50 Baltimore (BWI) 18:10 Cleveland (CLE)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-03-08 through 2026-04-05
Sat 17:10 San Antonio (SAT) A 18:00 Las Vegas Harry Reid (LAS) 1
WN 3873 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-08-08 through 2026-09-26
Tue,Wed 17:15 Baltimore (BWI) 18:35 Cleveland (CLE)
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-03-10 through 2026-04-01
Mon 18:15 Oakland (OAK) 2 19:45 Las Vegas Harry Reid (LAS) 1
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2026-01-05
Tue,Wed 19:50 Denver (DEN) 20:50 Phoenix Sky Harbor (PHX) 4
WN 3873 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-04-07 through 2026-06-03
Mon,Thu,Fri 20:45 Santa Ana (SNA) 22:10 Sacramento (SMF) B
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-06-04 through 2026-08-03
Tue,Wed 20:55 Santa Ana (SNA) 22:20 Sacramento (SMF) B
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 21:05 Denver (DEN) 22:10 Phoenix Sky Harbor (PHX) 4
WN 3873 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-04-09 through 2026-06-01
Sun 21:10 Santa Ana (SNA) 22:35 Sacramento (SMF) B
WN 3873 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-06-07 through 2026-08-02
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This flight number is listed as serving the following routes:
Southwest Airlines flight WN 3873: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Southwest Airlines WN3873
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
10:50

13:30
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 WN3873
10:50

13:30
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 WN3873
10:50

13:30
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 WN3873
10:50

13:30
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 WN3873
10:50

13:30
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 WN3873
10:50

13:30
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 WN3873
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
11:45

14:20
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3873
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
14:10

16:45
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
14:10

16:45
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3873
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
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This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Orlando (MCO)
  • Baltimore (BWI) - Cleveland (CLE)
  • Denver (DEN) - Bozeman (BZN)
  • Denver (DEN) - Phoenix Sky Harbor (PHX)
  • Houston Hobby (HOU) - Phoenix Sky Harbor (PHX)
  • Luis Munoz Marin, San Juan (SJU) - Orlando (MCO)
  • Oakland (OAK) - Las Vegas Harry Reid (LAS)
  • San Antonio (SAT) - Las Vegas Harry Reid (LAS)
  • Santa Ana (SNA) - Sacramento (SMF)
  • Tampa (TPA) - Islip (ISP)