Southwest Airlines flight WN 3877: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 10:00 Chicago Midway (MDW) 12:05 Indianapolis (IND)
WN 3877 Non-stop Boeing 737-800 (73H) 1:05 Effective 2026-06-04 through 2026-08-03
Tue,Wed 10:10 Chicago Midway (MDW) 12:10 Indianapolis (IND)
WN 3877 Non-stop Boeing 737-700 (Scimitar Winglets) 1:00 Effective 2026-06-09 through 2026-07-29
Sun 10:25 Chicago Midway (MDW) 12:25 Indianapolis (IND)
WN 3877 Non-stop Boeing 737-700 (Scimitar Winglets) 1:00 Effective 2026-06-07 through 2026-08-02
Tue,Wed 11:15 Tampa (TPA) 13:15 Dallas Love Field (DAL) 1
WN 3877 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-03-10 through 2026-04-01
Sat 11:50 Saint Louis (STL) 2 13:00 Phoenix Sky Harbor (PHX) 4
WN 3877 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-08-08 through 2026-09-26
Tue,Wed 11:55 Saint Louis (STL) 2 13:05 Phoenix Sky Harbor (PHX) 4
WN 3877 Non-stop Boeing 737-700 (Scimitar Winglets) 3:10 Effective 2026-08-04 through 2026-09-30
Mon,Thu,Fri 11:55 Saint Louis (STL) 2 13:05 Phoenix Sky Harbor (PHX) 4
WN 3877 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-08-06 through 2026-09-28
Tue,Wed 12:45 Indianapolis (IND) 14:20 Baltimore (BWI)
WN 3877 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-06-09 through 2026-07-29
Tue,Wed 15:00 Baltimore (BWI) 17:40 Sarasota/Bradenton (SRQ)
WN 3877 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2026-06-09 through 2026-07-29
Sat 16:55 Phoenix Sky Harbor (PHX) 4 20:55 San Antonio (SAT) A
WN 3877 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-04-11 through 2026-05-30
Mon,Thu,Fri 17:40 San Francisco (SFO) 2 19:40 Phoenix Sky Harbor (PHX) 4
WN 3877 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-04-09 through 2026-06-01
Tue,Wed 18:00 Phoenix Sky Harbor (PHX) 4 22:05 San Antonio (SAT) A
WN 3877 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-04-07 through 2026-06-03
Sun 20:05 Phoenix Sky Harbor (PHX) 4 00:10 San Antonio (SAT) A
WN 3877 Non-stop Boeing 737-800 (73H) 2:05 Operates only on 2026-05-24
The flight arrives 1 day after departure.
Mon,Thu,Fri 20:20 Phoenix Sky Harbor (PHX) 4 00:25 San Antonio (SAT) A
WN 3877 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-04-09 through 2026-06-01
The flight arrives 1 day after departure.
Sun 21:05 Phoenix Sky Harbor (PHX) 4 01:10 San Antonio (SAT) A
WN 3877 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-04-12 through 2026-05-17
The flight arrives 1 day after departure.
Sun 21:05 Phoenix Sky Harbor (PHX) 4 01:10 San Antonio (SAT) A
WN 3877 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Operates only on 2026-05-31
The flight arrives 1 day after departure.
Sat 21:25 Dallas Love Field (DAL) 1 22:50 Tucson (TUS)
WN 3877 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Operates only on 2026-01-03
Non-Direct Flights:
Tue,Wed 10:10 Chicago Midway (MDW) 14:20 Baltimore (BWI)
WN 3877 1-stop Boeing 737-700 (Scimitar Winglets) 3:10 Effective 2026-06-09 through 2026-07-29
Tue,Wed 12:45 Indianapolis (IND) 17:40 Sarasota/Bradenton (SRQ)
WN 3877 1-stop Boeing 737-700 (Scimitar Winglets) 4:55 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 17:40 San Francisco (SFO) 2 00:25 San Antonio (SAT) A
WN 3877 1-stop Boeing 737 MAX 8 (7M8) 4:45 Effective 2026-04-09 through 2026-06-01
The flight arrives 1 day after departure.
Tue,Wed 10:10 Chicago Midway (MDW) 17:40 Sarasota/Bradenton (SRQ)
WN 3877 2-stop Boeing 737-700 (Scimitar Winglets) 6:30 Effective 2026-06-09 through 2026-07-29
This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3877: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3877
10:00
Chicago Midway (MDW)

12:05
Indianapolis (IND)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3877
10:10
Chicago Midway (MDW)

12:10
Indianapolis (IND)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3877
10:25
Chicago Midway (MDW)

12:25
Indianapolis (IND)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3877
11:15
Tampa (TPA)

13:15
Dallas Love Field (DAL) 1
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3877
11:50
Saint Louis (STL) 2

13:00
Phoenix Sky Harbor (PHX) 4
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3877
11:55
Saint Louis (STL) 2

13:05
Phoenix Sky Harbor (PHX) 4
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3877
11:55
Saint Louis (STL) 2

13:05
Phoenix Sky Harbor (PHX) 4
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3877
12:45
Indianapolis (IND)

14:20
Baltimore (BWI)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3877
15:00
Baltimore (BWI)

17:40
Sarasota/Bradenton (SRQ)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3877
16:55
Phoenix Sky Harbor (PHX) 4

20:55
San Antonio (SAT) A
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3877
17:40
San Francisco (SFO) 2

19:40
Phoenix Sky Harbor (PHX) 4
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 WN3877
18:00
Phoenix Sky Harbor (PHX) 4

22:05
San Antonio (SAT) A
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3877
20:05
Phoenix Sky Harbor (PHX) 4

00:10(+1)
San Antonio (SAT) A
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3877
20:20
Phoenix Sky Harbor (PHX) 4

00:25(+1)
San Antonio (SAT) A
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3877
21:05
Phoenix Sky Harbor (PHX) 4

01:10(+1)
San Antonio (SAT) A
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3877
21:05
Phoenix Sky Harbor (PHX) 4

01:10(+1)
San Antonio (SAT) A
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3877
21:25
Dallas Love Field (DAL) 1

22:50
Tucson (TUS)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3877
10:10
Chicago Midway (MDW)

14:20
Baltimore (BWI)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:10, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3877
12:45
Indianapolis (IND)

17:40
Sarasota/Bradenton (SRQ)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:55, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3877
17:40
San Francisco (SFO) 2

00:25(+1)
San Antonio (SAT) A
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:45, 1-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN3877
10:10
Chicago Midway (MDW)

17:40
Sarasota/Bradenton (SRQ)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:30, 2-stop
Boeing 737-700 (Scimitar Winglets)
This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Sarasota/Bradenton (SRQ)
  • Chicago Midway (MDW) - Baltimore (BWI)
  • Chicago Midway (MDW) - Indianapolis (IND)
  • Chicago Midway (MDW) - Sarasota/Bradenton (SRQ)
  • Dallas Love Field (DAL) - Tucson (TUS)
  • Indianapolis (IND) - Baltimore (BWI)
  • Indianapolis (IND) - Sarasota/Bradenton (SRQ)
  • Phoenix Sky Harbor (PHX) - San Antonio (SAT)
  • Saint Louis (STL) - Phoenix Sky Harbor (PHX)
  • San Francisco (SFO) - Phoenix Sky Harbor (PHX)
  • San Francisco (SFO) - San Antonio (SAT)
  • Tampa (TPA) - Dallas Love Field (DAL)
All Southwest Airlines flights
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