Southwest Airlines flight WN 3998: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 05:45 Tampa (TPA) 07:10 Austin (AUS)
WN 3998 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-06-04 through 2026-08-03
Sat 05:55 Tampa (TPA) 07:20 Austin (AUS)
WN 3998 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-06-06 through 2026-08-01
Mon,Thu,Fri 06:30 El Paso (ELP) 08:55 San Antonio (SAT) A
WN 3998 Non-stop Boeing 737-800 (73H) 1:25 Effective 2026-08-06 through 2026-09-28
Sun 06:40 Tampa (TPA) 08:05 Austin (AUS)
WN 3998 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-06-07 through 2026-08-02
Tue,Wed 07:00 Tampa (TPA) 08:30 Austin (AUS)
WN 3998 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-06-09 through 2026-07-29
Sat 13:05 Nashville (BNA) 16:10 Philadelphia (PHL) E
WN 3998 Non-stop Boeing 737-800 (73H) 2:05 Effective 2026-08-08 through 2026-09-26
Sun 14:35 Nashville (BNA) 17:40 Philadelphia (PHL) E
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-08-09 through 2026-09-27
Sat 14:40 West Palm Beach (PBI) 17:20 Islip (ISP)
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Valid until 2026-01-03
Sat 15:55 Raleigh/Durham (RDU) 1 16:55 Chicago Midway (MDW)
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-04-11 through 2026-05-30
Sun 18:20 Raleigh/Durham (RDU) 1 19:20 Chicago Midway (MDW)
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Operates only on 2026-05-24
Sun 19:35 Raleigh/Durham (RDU) 1 20:35 Chicago Midway (MDW)
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-04-12 through 2026-05-17
Sun 19:35 Raleigh/Durham (RDU) 1 20:35 Chicago Midway (MDW)
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Operates only on 2026-05-31
Mon,Thu,Fri 19:45 Raleigh/Durham (RDU) 1 20:45 Chicago Midway (MDW)
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-04-09 through 2026-06-01
Tue,Wed 20:35 Chicago Midway (MDW) 23:30 San Antonio (SAT) A
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-03-10 through 2026-04-01
Sat 21:35 Chicago Midway (MDW) 00:30 San Antonio (SAT) A
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-03-07 through 2026-04-04
The flight arrives 1 day after departure.
Sun 21:45 Chicago Midway (MDW) 00:40 San Antonio (SAT) A
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-03-08 through 2026-04-05
The flight arrives 1 day after departure.
Mon,Thu,Fri 21:55 Chicago Midway (MDW) 00:50 San Antonio (SAT) A
WN 3998 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-03-05 through 2026-04-06
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3998: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3998
05:45
Tampa (TPA)

07:10
Austin (AUS)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3998
05:55
Tampa (TPA)

07:20
Austin (AUS)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3998
06:30
El Paso (ELP)

08:55
San Antonio (SAT) A
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3998
06:40
Tampa (TPA)

08:05
Austin (AUS)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3998
07:00
Tampa (TPA)

08:30
Austin (AUS)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3998
13:05
Nashville (BNA)

16:10
Philadelphia (PHL) E
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3998
14:35
Nashville (BNA)

17:40
Philadelphia (PHL) E
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3998
14:40
West Palm Beach (PBI)

17:20
Islip (ISP)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3998
15:55
Raleigh/Durham (RDU) 1

16:55
Chicago Midway (MDW)
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3998
18:20
Raleigh/Durham (RDU) 1

19:20
Chicago Midway (MDW)
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3998
19:35
Raleigh/Durham (RDU) 1

20:35
Chicago Midway (MDW)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3998
19:35
Raleigh/Durham (RDU) 1

20:35
Chicago Midway (MDW)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3998
19:45
Raleigh/Durham (RDU) 1

20:45
Chicago Midway (MDW)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3998
20:35
Chicago Midway (MDW)

23:30
San Antonio (SAT) A
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3998
21:35
Chicago Midway (MDW)

00:30(+1)
San Antonio (SAT) A
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3998
21:45
Chicago Midway (MDW)

00:40(+1)
San Antonio (SAT) A
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3998
21:55
Chicago Midway (MDW)

00:50(+1)
San Antonio (SAT) A
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Chicago Midway (MDW) - San Antonio (SAT)
  • El Paso (ELP) - San Antonio (SAT)
  • Nashville (BNA) - Philadelphia (PHL)
  • Raleigh/Durham (RDU) - Chicago Midway (MDW)
  • Tampa (TPA) - Austin (AUS)
  • West Palm Beach (PBI) - Islip (ISP)
All Southwest Airlines flights
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