Southwest Airlines flight WN 3994: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 05:45 Chicago Midway (MDW) 08:10 San Diego (SAN) 1
WN 3994 Non-stop Boeing 737 MAX 8 (7M8) 4:25 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 06:05 Chicago Midway (MDW) 08:35 San Diego (SAN) 1
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 4:30 Effective 2026-03-05 through 2026-04-06
Sun 06:05 Raleigh/Durham (RDU) 1 07:50 Orlando (MCO)
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-04-12 through 2026-05-17
Sun 06:05 Raleigh/Durham (RDU) 1 07:50 Orlando (MCO)
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Operates only on 2026-05-31
Mon-Sat 06:30 Baltimore (BWI) 08:00 Boston Logan (BOS) B
WN 3994 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-08-04 through 2026-09-30
Sun 07:05 Baltimore (BWI) 08:35 Boston Logan (BOS) B
WN 3994 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-08-09 through 2026-09-27
Sun 07:25 Raleigh/Durham (RDU) 1 09:10 Orlando (MCO)
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Operates only on 2026-05-24
Sat 07:35 Raleigh/Durham (RDU) 1 09:20 Orlando (MCO)
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-04-11 through 2026-05-30
Mon,Thu,Fri 07:40 Raleigh/Durham (RDU) 1 09:25 Orlando (MCO)
WN 3994 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-04-09 through 2026-06-01
Sat 12:10 Philadelphia (PHL) E 13:25 Chicago Midway (MDW)
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-03-07 through 2026-04-04
Mon 12:25 Sacramento (SMF) B 13:45 Ontario, Los Angeles (ONT) 4
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Operates only on 2026-01-05
Wed,Thu 13:20 Sacramento (SMF) B 14:40 Ontario, Los Angeles (ONT) 4
WN 3994 Non-stop Boeing 737-700 (73W) 1:20 Valid until 2026-01-01
Sat 14:05 Chicago Midway (MDW) 16:35 San Diego (SAN) 1
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 4:30 Effective 2026-03-07 through 2026-04-04
Mon 14:20 Ontario, Los Angeles (ONT) 4 16:35 Phoenix Sky Harbor (PHX) 4
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Operates only on 2026-01-05
Sun 16:55 Santa Rosa (STS) 18:35 San Diego (SAN) 1
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-06-07 through 2026-08-02
Mon,Thu,Fri 17:10 Santa Rosa (STS) 18:50 San Diego (SAN) 1
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-06-04 through 2026-08-03
Mon 17:15 Phoenix Sky Harbor (PHX) 4 18:25 El Paso (ELP)
WN 3994 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Operates only on 2026-01-05
Tue,Wed 17:55 Raleigh/Durham (RDU) 1 19:40 Orlando (MCO)
WN 3994 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-04-07 through 2026-06-03
Non-Direct Flights:
Sat 12:10 Philadelphia (PHL) E 16:35 San Diego (SAN) 1
WN 3994 1-stop Boeing 737-700 (Scimitar Winglets) 7:25 Effective 2026-03-07 through 2026-04-04
Mon 12:25 Sacramento (SMF) B 16:35 Phoenix Sky Harbor (PHX) 4
WN 3994 1-stop Boeing 737-700 (Scimitar Winglets) 3:10 Operates only on 2026-01-05
Mon 14:20 Ontario, Los Angeles (ONT) 4 18:25 El Paso (ELP)
WN 3994 1-stop Boeing 737-700 (Scimitar Winglets) 3:05 Operates only on 2026-01-05
Mon 12:25 Sacramento (SMF) B 18:25 El Paso (ELP)
WN 3994 2-stop Boeing 737-700 (Scimitar Winglets) 5:00 Operates only on 2026-01-05
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This flight number is listed as serving the following routes:
Southwest Airlines flight WN 3994: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Southwest Airlines WN3994
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-08-04 through 2026-09-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3994
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (73W)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3994
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN3994
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 7:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3994
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:10, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3994
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:05, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3994
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:00, 2-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Boston Logan (BOS)
  • Chicago Midway (MDW) - San Diego (SAN)
  • Ontario, Los Angeles (ONT) - El Paso (ELP)
  • Ontario, Los Angeles (ONT) - Phoenix Sky Harbor (PHX)
  • Philadelphia (PHL) - Chicago Midway (MDW)
  • Philadelphia (PHL) - San Diego (SAN)
  • Phoenix Sky Harbor (PHX) - El Paso (ELP)
  • Raleigh/Durham (RDU) - Orlando (MCO)
  • Sacramento (SMF) - El Paso (ELP)
  • Sacramento (SMF) - Ontario, Los Angeles (ONT)
  • Sacramento (SMF) - Phoenix Sky Harbor (PHX)
  • Santa Rosa (STS) - San Diego (SAN)