Southwest Airlines flight WN 3978: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 05:00 New Orleans (MSY) 07:20 Chicago Midway (MDW)
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-03-05 through 2026-04-06
Sun 05:10 New Orleans (MSY) 07:30 Chicago Midway (MDW)
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-03-08 through 2026-04-05
Mon,Thu,Fri 06:10 Raleigh/Durham (RDU) 1 08:20 Austin (AUS)
WN 3978 Non-stop Boeing 737-700 (Scimitar Winglets) 3:10 Effective 2026-04-09 through 2026-06-01
Sat 07:45 Chicago Midway (MDW) 10:35 Philadelphia (PHL) E
WN 3978 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-03-07 through 2026-04-04
Tue,Wed 07:45 Chicago Midway (MDW) 10:35 Philadelphia (PHL) E
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 1:50 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 08:00 Chicago Midway (MDW) 11:00 Philadelphia (PHL) E
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-03-05 through 2026-04-06
Sun 08:10 Chicago Midway (MDW) 09:30 Saint Louis (STL) 2
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-03-08 through 2026-04-05
Mon,Thu,Fri 08:10 Saint Louis (STL) 2 10:15 San Antonio (SAT) A
WN 3978 Non-stop Boeing 737-800 (73H) 2:05 Effective 2026-06-04 through 2026-08-03
Mon,Thu,Fri 09:30 San Diego (SAN) 1 11:10 Sacramento (SMF) B
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 09:30 San Diego (SAN) 1 11:10 Sacramento (SMF) B
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-02-20 through 2026-03-01
Tue,Wed 11:10 Raleigh/Durham (RDU) 1 13:15 Austin (AUS)
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2026-04-07 through 2026-06-03
Sat 11:15 Philadelphia (PHL) E 13:55 Orlando (MCO)
WN 3978 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-03-07 through 2026-04-04
Tue,Wed 11:15 Philadelphia (PHL) E 14:00 Tampa (TPA)
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-03-10 through 2026-04-01
Sun 12:10 Destin/Fort Walton Beach (VPS) 15:25 Baltimore (BWI)
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-08-09 through 2026-09-27
Sat 12:15 Destin/Fort Walton Beach (VPS) 15:30 Baltimore (BWI)
WN 3978 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-08-08 through 2026-09-26
Tue,Wed 14:15 Destin/Fort Walton Beach (VPS) 17:30 Baltimore (BWI)
WN 3978 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-08-04 through 2026-09-30
Mon,Thu,Fri 16:10 Destin/Fort Walton Beach (VPS) 19:30 Baltimore (BWI)
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-08-06 through 2026-09-28
Mon 16:15 Ontario, Los Angeles (ONT) 4 19:25 Denver (DEN)
WN 3978 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Operates only on 2026-01-05
Non-Direct Flights:
Mon,Thu,Fri 05:00 New Orleans (MSY) 11:00 Philadelphia (PHL) E
WN 3978 1-stop Boeing 737 MAX 8 (7M8) 5:00 Effective 2026-03-05 through 2026-04-06
Sun 05:10 New Orleans (MSY) 09:30 Saint Louis (STL) 2
WN 3978 1-stop Boeing 737 MAX 8 (7M8) 4:20 Effective 2026-03-08 through 2026-04-05
Sat 07:45 Chicago Midway (MDW) 13:55 Orlando (MCO)
WN 3978 1-stop Boeing 737-800 (73H) 5:10 Effective 2026-03-07 through 2026-04-04
Tue,Wed 07:45 Chicago Midway (MDW) 14:00 Tampa (TPA)
WN 3978 1-stop Boeing 737 MAX 8 (7M8) 5:15 Effective 2026-03-10 through 2026-04-01
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3978: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3978
05:00
New Orleans (MSY)

07:20
Chicago Midway (MDW)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3978
05:10
New Orleans (MSY)

07:30
Chicago Midway (MDW)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3978
06:10
Raleigh/Durham (RDU) 1

08:20
Austin (AUS)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3978
07:45
Chicago Midway (MDW)

10:35
Philadelphia (PHL) E
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3978
07:45
Chicago Midway (MDW)

10:35
Philadelphia (PHL) E
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3978
08:00
Chicago Midway (MDW)

11:00
Philadelphia (PHL) E
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3978
08:10
Chicago Midway (MDW)

09:30
Saint Louis (STL) 2
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 WN3978
08:10
Saint Louis (STL) 2

10:15
San Antonio (SAT) A
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3978
09:30
San Diego (SAN) 1

11:10
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 WN3978
09:30
San Diego (SAN) 1

11:10
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 WN3978
11:10
Raleigh/Durham (RDU) 1

13:15
Austin (AUS)
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3978
11:15
Philadelphia (PHL) E

13:55
Orlando (MCO)
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3978
11:15
Philadelphia (PHL) E

14:00
Tampa (TPA)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3978
12:10
Destin/Fort Walton Beach (VPS)

15:25
Baltimore (BWI)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3978
12:15
Destin/Fort Walton Beach (VPS)

15:30
Baltimore (BWI)
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3978
14:15
Destin/Fort Walton Beach (VPS)

17:30
Baltimore (BWI)
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3978
16:10
Destin/Fort Walton Beach (VPS)

19:30
Baltimore (BWI)
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3978
16:15
Ontario, Los Angeles (ONT) 4

19:25
Denver (DEN)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN3978
05:00
New Orleans (MSY)

11:00
Philadelphia (PHL) E
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:00, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN3978
05:10
New Orleans (MSY)

09:30
Saint Louis (STL) 2
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:20, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN3978
07:45
Chicago Midway (MDW)

13:55
Orlando (MCO)
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:10, 1-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN3978
07:45
Chicago Midway (MDW)

14:00
Tampa (TPA)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:15, 1-stop
Boeing 737 MAX 8 (7M8)
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This flight number is listed as serving the following routes:
  • Chicago Midway (MDW) - Orlando (MCO)
  • Chicago Midway (MDW) - Philadelphia (PHL)
  • Chicago Midway (MDW) - Saint Louis (STL)
  • Chicago Midway (MDW) - Tampa (TPA)
  • Destin/Fort Walton Beach (VPS) - Baltimore (BWI)
  • New Orleans (MSY) - Chicago Midway (MDW)
  • New Orleans (MSY) - Philadelphia (PHL)
  • New Orleans (MSY) - Saint Louis (STL)
  • Ontario, Los Angeles (ONT) - Denver (DEN)
  • Philadelphia (PHL) - Orlando (MCO)
  • Philadelphia (PHL) - Tampa (TPA)
  • Raleigh/Durham (RDU) - Austin (AUS)
  • Saint Louis (STL) - San Antonio (SAT)
  • San Diego (SAN) - Sacramento (SMF)
All Southwest Airlines flights
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