Southwest Airlines flight WN 3731: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 09:50 Chicago Midway (MDW) 12:45 Albany (ALB)
WN 3731 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Valid until 2026-01-03
Sat 10:20 Burbank (BUR) 11:35 Las Vegas Harry Reid (LAS) 1
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-04-11 through 2026-05-30
Tue,Wed 10:25 Burbank (BUR) 11:40 Las Vegas Harry Reid (LAS) 1
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-04-07 through 2026-06-03
Mon,Thu,Fri 10:35 Burbank (BUR) 11:50 Las Vegas Harry Reid (LAS) 1
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-04-09 through 2026-06-01
Sun 10:50 Burbank (BUR) 12:05 Las Vegas Harry Reid (LAS) 1
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-04-12 through 2026-05-17
Sun 10:50 Burbank (BUR) 12:05 Las Vegas Harry Reid (LAS) 1
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Operates only on 2026-05-31
Mon,Thu,Fri 11:20 Sarasota/Bradenton (SRQ) 13:45 John Glenn Columbus (CMH)
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 11:20 Sarasota/Bradenton (SRQ) 13:45 John Glenn Columbus (CMH)
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-02-20 through 2026-03-01
Tue,Wed 12:20 Las Vegas Harry Reid (LAS) 1 14:50 Salt Lake City (SLC)
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-04-07 through 2026-06-03
Mon,Thu,Fri 12:25 Las Vegas Harry Reid (LAS) 1 19:30 Cleveland (CLE)
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 4:05 Effective 2026-04-09 through 2026-06-01
Mon,Thu,Fri 12:30 Santa Ana (SNA) 13:55 Oakland (OAK) 2
WN 3731 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-08-06 through 2026-09-28
Sun 12:40 Las Vegas Harry Reid (LAS) 1 18:00 Memphis (MEM)
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 3:20 Effective 2026-04-12 through 2026-05-17
Sun 12:40 Las Vegas Harry Reid (LAS) 1 18:00 Memphis (MEM)
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 3:20 Operates only on 2026-05-31
Sat 13:25 Albany (ALB) 16:35 Tampa (TPA)
WN 3731 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Valid until 2026-01-03
Mon,Thu,Fri 14:20 John Glenn Columbus (CMH) 16:00 Las Vegas Harry Reid (LAS) 1
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 4:40 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 14:20 John Glenn Columbus (CMH) 16:00 Las Vegas Harry Reid (LAS) 1
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 4:40 Effective 2026-02-20 through 2026-03-01
Tue,Wed 18:45 Saint Louis (STL) 2 22:10 Boston Logan (BOS) B
WN 3731 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-10 through 2026-04-01
Sun 19:00 Luis Munoz Marin, San Juan (SJU) B 22:05 Tampa (TPA)
WN 3731 Non-stop Boeing 737-800 (73H) 3:05 Effective 2026-06-07 through 2026-08-02
Sat,Sun 19:40 Saint Louis (STL) 2 23:05 Boston Logan (BOS) B
WN 3731 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-07 through 2026-04-05
Mon,Thu,Fri 19:45 Saint Louis (STL) 2 23:10 Boston Logan (BOS) B
WN 3731 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-05 through 2026-04-06
Sat 19:50 Luis Munoz Marin, San Juan (SJU) B 22:55 Tampa (TPA)
WN 3731 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2026-06-06 through 2026-08-01
Mon,Thu,Fri 20:05 Cleveland (CLE) 20:25 Chicago Midway (MDW)
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-04-09 through 2026-06-01
Sun 20:15 Sacramento (SMF) B 22:10 Phoenix Sky Harbor (PHX) 4
WN 3731 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2026-08-09 through 2026-09-27
Tue,Wed 20:35 Luis Munoz Marin, San Juan (SJU) B 23:40 Tampa (TPA)
WN 3731 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 21:55 Luis Munoz Marin, San Juan (SJU) B 00:55 Tampa (TPA)
WN 3731 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-06-04 through 2026-08-03
The flight arrives 1 day after departure.
Non-Direct Flights:
Sat 09:50 Chicago Midway (MDW) 16:35 Tampa (TPA)
WN 3731 1-stop Boeing 737 MAX 8 (7M8) 5:45 Valid until 2026-01-03
Tue,Wed 10:25 Burbank (BUR) 14:50 Salt Lake City (SLC)
WN 3731 1-stop Boeing 737-700 (Scimitar Winglets) 3:25 Effective 2026-04-07 through 2026-06-03
Mon,Thu,Fri 10:35 Burbank (BUR) 19:30 Cleveland (CLE)
WN 3731 1-stop Boeing 737-700 (Scimitar Winglets) 5:55 Effective 2026-04-09 through 2026-06-01
Sun 10:50 Burbank (BUR) 18:00 Memphis (MEM)
WN 3731 1-stop Boeing 737-700 (Scimitar Winglets) 5:10 Effective 2026-04-12 through 2026-05-17
Sun 10:50 Burbank (BUR) 18:00 Memphis (MEM)
WN 3731 1-stop Boeing 737-700 (Scimitar Winglets) 5:10 Operates only on 2026-05-31
Mon,Thu,Fri 11:20 Sarasota/Bradenton (SRQ) 16:00 Las Vegas Harry Reid (LAS) 1
WN 3731 1-stop Boeing 737-700 (Scimitar Winglets) 7:40 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 11:20 Sarasota/Bradenton (SRQ) 16:00 Las Vegas Harry Reid (LAS) 1
WN 3731 1-stop Boeing 737-700 (Scimitar Winglets) 7:40 Effective 2026-02-20 through 2026-03-01
Mon,Thu,Fri 12:25 Las Vegas Harry Reid (LAS) 1 20:25 Chicago Midway (MDW)
WN 3731 1-stop Boeing 737-700 (Scimitar Winglets) 6:00 Effective 2026-04-09 through 2026-06-01
Mon,Thu,Fri 10:35 Burbank (BUR) 20:25 Chicago Midway (MDW)
WN 3731 2-stop Boeing 737-700 (Scimitar Winglets) 7:50 Effective 2026-04-09 through 2026-06-01
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3731: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3731
09:50
Chicago Midway (MDW)

12:45
Albany (ALB)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3731
10:20
Burbank (BUR)

11:35
Las Vegas Harry Reid (LAS) 1
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
10:25
Burbank (BUR)

11:40
Las Vegas Harry Reid (LAS) 1
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
10:35
Burbank (BUR)

11:50
Las Vegas Harry Reid (LAS) 1
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
10:50
Burbank (BUR)

12:05
Las Vegas Harry Reid (LAS) 1
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
10:50
Burbank (BUR)

12:05
Las Vegas Harry Reid (LAS) 1
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
11:20
Sarasota/Bradenton (SRQ)

13:45
John Glenn Columbus (CMH)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
11:20
Sarasota/Bradenton (SRQ)

13:45
John Glenn Columbus (CMH)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
12:20
Las Vegas Harry Reid (LAS) 1

14:50
Salt Lake City (SLC)
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
12:25
Las Vegas Harry Reid (LAS) 1

19:30
Cleveland (CLE)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
12:30
Santa Ana (SNA)

13:55
Oakland (OAK) 2
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3731
12:40
Las Vegas Harry Reid (LAS) 1

18:00
Memphis (MEM)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
12:40
Las Vegas Harry Reid (LAS) 1

18:00
Memphis (MEM)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
13:25
Albany (ALB)

16:35
Tampa (TPA)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3731
14:20
John Glenn Columbus (CMH)

16:00
Las Vegas Harry Reid (LAS) 1
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
14:20
John Glenn Columbus (CMH)

16:00
Las Vegas Harry Reid (LAS) 1
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
18:45
Saint Louis (STL) 2

22:10
Boston Logan (BOS) B
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3731
19:00
Luis Munoz Marin, San Juan (SJU) B

22:05
Tampa (TPA)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3731
19:40
Saint Louis (STL) 2

23:05
Boston Logan (BOS) B
Effective 2026-03-07 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3731
19:45
Saint Louis (STL) 2

23:10
Boston Logan (BOS) B
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3731
19:50
Luis Munoz Marin, San Juan (SJU) B

22:55
Tampa (TPA)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3731
20:05
Cleveland (CLE)

20:25
Chicago Midway (MDW)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3731
20:15
Sacramento (SMF) B

22:10
Phoenix Sky Harbor (PHX) 4
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3731
20:35
Luis Munoz Marin, San Juan (SJU) B

23:40
Tampa (TPA)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3731
21:55
Luis Munoz Marin, San Juan (SJU) B

00:55(+1)
Tampa (TPA)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN3731
09:50
Chicago Midway (MDW)

16:35
Tampa (TPA)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:45, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN3731
10:25
Burbank (BUR)

14:50
Salt Lake City (SLC)
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:25, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3731
10:35
Burbank (BUR)

19:30
Cleveland (CLE)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:55, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3731
10:50
Burbank (BUR)

18:00
Memphis (MEM)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:10, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3731
10:50
Burbank (BUR)

18:00
Memphis (MEM)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:10, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3731
11:20
Sarasota/Bradenton (SRQ)

16:00
Las Vegas Harry Reid (LAS) 1
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 7:40, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3731
11:20
Sarasota/Bradenton (SRQ)

16:00
Las Vegas Harry Reid (LAS) 1
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 7:40, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3731
12:25
Las Vegas Harry Reid (LAS) 1

20:25
Chicago Midway (MDW)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 6:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3731
10:35
Burbank (BUR)

20:25
Chicago Midway (MDW)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 7:50, 2-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Albany (ALB) - Tampa (TPA)
  • Burbank (BUR) - Chicago Midway (MDW)
  • Burbank (BUR) - Cleveland (CLE)
  • Burbank (BUR) - Las Vegas Harry Reid (LAS)
  • Burbank (BUR) - Memphis (MEM)
  • Burbank (BUR) - Salt Lake City (SLC)
  • Chicago Midway (MDW) - Albany (ALB)
  • Chicago Midway (MDW) - Tampa (TPA)
  • Cleveland (CLE) - Chicago Midway (MDW)
  • John Glenn Columbus (CMH) - Las Vegas Harry Reid (LAS)
  • Las Vegas Harry Reid (LAS) - Chicago Midway (MDW)
  • Las Vegas Harry Reid (LAS) - Cleveland (CLE)
  • Las Vegas Harry Reid (LAS) - Memphis (MEM)
  • Las Vegas Harry Reid (LAS) - Salt Lake City (SLC)
  • Luis Munoz Marin, San Juan (SJU) - Tampa (TPA)
  • Sacramento (SMF) - Phoenix Sky Harbor (PHX)
  • Saint Louis (STL) - Boston Logan (BOS)
  • Santa Ana (SNA) - Oakland (OAK)
  • Sarasota/Bradenton (SRQ) - John Glenn Columbus (CMH)
  • Sarasota/Bradenton (SRQ) - Las Vegas Harry Reid (LAS)
All Southwest Airlines flights
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