Southwest Airlines flight WN 3987: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Wed 05:10 Ontario, Los Angeles (ONT) 4 07:20 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 05:10 Ontario, Los Angeles (ONT) 4 07:20 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-12-19 through 2026-01-04
Mon,Thu,Fri,Sun 05:35 Ontario, Los Angeles (ONT) 4 07:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 05:35 Ontario, Los Angeles (ONT) 4 07:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2025-11-21 through 2025-11-28
Fri,Sun 05:35 Ontario, Los Angeles (ONT) 4 07:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2025-12-07 through 2025-12-14
Thu 05:35 Ontario, Los Angeles (ONT) 4 07:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Operates only on 2025-12-18
Mon 05:35 Ontario, Los Angeles (ONT) 4 07:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Operates only on 2026-01-05
Sun 06:00 Ontario, Los Angeles (ONT) 4 08:15 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Operates only on 2025-11-30
Sun 09:00 New Orleans (MSY) 11:00 Kansas City (MCI)
WN 3987 Non-stop Boeing 737-800 (73H) 2:00 Operates only on 2025-05-25
Tue,Wed 09:00 Milwaukee (MKE) 12:45 Fort Myers (RSW)
WN 3987 Non-stop Boeing 737-700 (73W) 2:45 Effective 2025-06-10 through 2025-07-30
Fri 10:20 Seattle-Tacoma (SEA) 16:10 Love Field, Dallas (DAL) 1
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Operates only on 2025-07-04
Sat 10:35 Milwaukee (MKE) 14:25 Fort Myers (RSW)
WN 3987 Non-stop Boeing 737-700 (73W) 2:50 Effective 2025-06-07 through 2025-08-02
Mon,Thu,Fri 11:00 Santa Ana (SNA) 12:20 San Jose (SJC) B
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2025-08-07 through 2025-09-29
Sun 11:45 Santa Ana (SNA) 13:05 San Jose (SJC) B
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2025-08-10 through 2025-08-24
Sun 11:45 Santa Ana (SNA) 13:05 San Jose (SJC) B
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2025-09-07 through 2025-09-28
Sun 12:30 Milwaukee (MKE) 16:20 Fort Myers (RSW)
WN 3987 Non-stop Boeing 737-800 (73H) 2:50 Effective 2025-06-08 through 2025-08-03
Tue,Wed 12:35 Ontario, Los Angeles (ONT) 4 14:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-11-04 through 2025-11-12
Mon-Thu 12:35 Ontario, Los Angeles (ONT) 4 14:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-11-17 through 2025-11-20
Mon-Fri 12:35 Ontario, Los Angeles (ONT) 4 14:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-12-02 through 2025-12-11
Mon-Wed 12:35 Ontario, Los Angeles (ONT) 4 14:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-12-15 through 2025-12-17
Wed,Thu 12:35 Ontario, Los Angeles (ONT) 4 14:50 Phoenix Sky Harbor (PHX) 4
WN 3987 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-12-24 through 2026-01-01
Sun 14:35 Las Vegas Harry Reid (LAS) 1 19:20 Kansas City (MCI)
WN 3987 Non-stop Boeing 737-800 (73H) 2:45 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 15:30 Milwaukee (MKE) 19:20 Fort Myers (RSW)
WN 3987 Non-stop Boeing 737-800 (73H) 2:50 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 15:30 Milwaukee (MKE) 19:20 Fort Myers (RSW)
WN 3987 Non-stop Boeing 737-800 (73H) 2:50 Effective 2025-07-07 through 2025-08-04
Sat 16:10 Denver (DEN) 18:10 Boise (BOI)
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2025-11-22 through 2025-11-29
Sat 16:10 Denver (DEN) 18:10 Boise (BOI)
WN 3987 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2025-12-20 through 2026-01-03
Tue,Wed 18:40 Santa Ana (SNA) 19:55 San Jose (SJC) B
WN 3987 Non-stop Boeing 737-700 (73W) 1:15 Effective 2025-08-05 through 2025-10-01
This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3987: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3987
05:10
Ontario, Los Angeles (ONT) 4

07:20
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3987
05:10
Ontario, Los Angeles (ONT) 4

07:20
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3987
05:35
Ontario, Los Angeles (ONT) 4

07:50
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
05:35
Ontario, Los Angeles (ONT) 4

07:50
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
05:35
Ontario, Los Angeles (ONT) 4

07:50
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
05:35
Ontario, Los Angeles (ONT) 4

07:50
Phoenix Sky Harbor (PHX) 4
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
05:35
Ontario, Los Angeles (ONT) 4

07:50
Phoenix Sky Harbor (PHX) 4
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
06:00
Ontario, Los Angeles (ONT) 4

08:15
Phoenix Sky Harbor (PHX) 4
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
09:00
New Orleans (MSY)

11:00
Kansas City (MCI)
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3987
09:00
Milwaukee (MKE)

12:45
Fort Myers (RSW)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3987
10:20
Seattle-Tacoma (SEA)

16:10
Love Field, Dallas (DAL) 1
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
10:35
Milwaukee (MKE)

14:25
Fort Myers (RSW)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:50, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3987
11:00
Santa Ana (SNA)

12:20
San Jose (SJC) B
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
11:45
Santa Ana (SNA)

13:05
San Jose (SJC) B
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
11:45
Santa Ana (SNA)

13:05
San Jose (SJC) B
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
12:30
Milwaukee (MKE)

16:20
Fort Myers (RSW)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:50, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3987
12:35
Ontario, Los Angeles (ONT) 4

14:50
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-04 through 2025-11-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3987
12:35
Ontario, Los Angeles (ONT) 4

14:50
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-17 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3987
12:35
Ontario, Los Angeles (ONT) 4

14:50
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-02 through 2025-12-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3987
12:35
Ontario, Los Angeles (ONT) 4

14:50
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-15 through 2025-12-17
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3987
12:35
Ontario, Los Angeles (ONT) 4

14:50
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-24 through 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3987
14:35
Las Vegas Harry Reid (LAS) 1

19:20
Kansas City (MCI)
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:45, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3987
15:30
Milwaukee (MKE)

19:20
Fort Myers (RSW)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3987
15:30
Milwaukee (MKE)

19:20
Fort Myers (RSW)
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3987
16:10
Denver (DEN)

18:10
Boise (BOI)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
16:10
Denver (DEN)

18:10
Boise (BOI)
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3987
18:40
Santa Ana (SNA)

19:55
San Jose (SJC) B
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (73W)
This flight number is listed as serving the following routes:
  • Denver (DEN) - Boise (BOI)
  • Las Vegas Harry Reid (LAS) - Kansas City (MCI)
  • Milwaukee (MKE) - Fort Myers (RSW)
  • New Orleans (MSY) - Kansas City (MCI)
  • Ontario, Los Angeles (ONT) - Phoenix Sky Harbor (PHX)
  • Santa Ana (SNA) - San Jose (SJC)
  • Seattle-Tacoma (SEA) - Love Field, Dallas (DAL)
All Southwest Airlines flights
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