Southwest Airlines flight WN 3120: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 05:05 Buffalo (BUF) 06:40 Denver (DEN)
WN 3120 Non-stop Boeing 737-800 (73H) 3:35 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 05:05 Buffalo (BUF) 06:40 Denver (DEN)
WN 3120 Non-stop Boeing 737-800 (73H) 3:35 Effective 2025-07-07 through 2025-08-04
Sat 05:15 Buffalo (BUF) 06:50 Denver (DEN)
WN 3120 Non-stop Boeing 737-800 (73H) 3:35 Effective 2025-06-07 through 2025-08-02
Tue,Wed 05:30 Los Angeles (LAX) 1 06:45 Las Vegas Harry Reid (LAS) 1
WN 3120 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-11-04 through 2025-11-12
Mon-Thu 05:30 Los Angeles (LAX) 1 06:45 Las Vegas Harry Reid (LAS) 1
WN 3120 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-11-17 through 2025-11-20
Mon-Fri 05:30 Los Angeles (LAX) 1 06:45 Las Vegas Harry Reid (LAS) 1
WN 3120 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-12-02 through 2025-12-11
Mon-Wed 05:30 Los Angeles (LAX) 1 06:45 Las Vegas Harry Reid (LAS) 1
WN 3120 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-12-15 through 2025-12-17
Wed,Thu 05:30 Los Angeles (LAX) 1 06:45 Las Vegas Harry Reid (LAS) 1
WN 3120 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-12-24 through 2026-01-01
Sun 07:05 Buffalo (BUF) 08:35 Denver (DEN)
WN 3120 Non-stop Boeing 737-700 (73W) 3:30 Effective 2025-06-08 through 2025-08-03
Fri 07:25 Buffalo (BUF) 08:55 Denver (DEN)
WN 3120 Non-stop Boeing 737-800 (73H) 3:30 Operates only on 2025-07-04
Tue,Wed 08:20 Buffalo (BUF) 09:50 Denver (DEN)
WN 3120 Non-stop Boeing 737-800 (73H) 3:30 Effective 2025-06-10 through 2025-07-30
Sat 13:25 Los Angeles (LAX) 1 14:40 Las Vegas Harry Reid (LAS) 1
WN 3120 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2025-11-08 through 2025-11-15
Sat 13:25 Los Angeles (LAX) 1 14:40 Las Vegas Harry Reid (LAS) 1
WN 3120 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2025-12-06 through 2025-12-13
Sun 15:25 Phoenix Sky Harbor (PHX) 4 18:05 Colorado Springs (COS)
WN 3120 Non-stop Boeing 737-800 (73H) 1:40 Effective 2025-08-10 through 2025-08-24
Sun 15:25 Phoenix Sky Harbor (PHX) 4 18:05 Colorado Springs (COS)
WN 3120 Non-stop Boeing 737-800 (73H) 1:40 Effective 2025-09-07 through 2025-09-28
Sat 16:00 Phoenix Sky Harbor (PHX) 4 18:40 Colorado Springs (COS)
WN 3120 Non-stop Boeing 737-700 (73W) 1:40 Effective 2025-08-09 through 2025-09-27
Mon-Wed 17:50 San Diego (SAN) 1 20:50 Salt Lake City (SLC)
WN 3120 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 17:50 San Diego (SAN) 1 20:50 Salt Lake City (SLC)
WN 3120 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2025-12-19 through 2026-01-04
Mon,Thu,Fri 19:05 Midway, Chicago (MDW) 21:25 Love Field, Dallas (DAL) 1
WN 3120 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-10-02 through 2025-10-31
Sat 19:30 Midway, Chicago (MDW) 21:45 Love Field, Dallas (DAL) 1
WN 3120 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-10-04 through 2025-11-01
Sat 19:55 San Diego (SAN) 1 23:00 Salt Lake City (SLC)
WN 3120 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2025-11-22 through 2025-11-29
Sat 19:55 San Diego (SAN) 1 23:00 Salt Lake City (SLC)
WN 3120 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2025-12-20 through 2026-01-03
Tue,Wed 20:25 Midway, Chicago (MDW) 22:40 Love Field, Dallas (DAL) 1
WN 3120 Non-stop Boeing 737-800 (73H) 2:15 Effective 2025-10-07 through 2025-10-29
Sun 21:10 Midway, Chicago (MDW) 23:30 Love Field, Dallas (DAL) 1
WN 3120 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 22:05 Love Field, Dallas (DAL) 1 23:10 San Diego (SAN) 1
WN 3120 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-10-02 through 2025-10-31
Non-Direct Flights:
Mon,Thu,Fri 19:05 Midway, Chicago (MDW) 23:10 San Diego (SAN) 1
WN 3120 1-stop Boeing 737-800 (73H) 6:05 Effective 2025-10-02 through 2025-10-31
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3120: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3120
05:05
Buffalo (BUF)

06:40
Denver (DEN)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:35, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3120
05:05
Buffalo (BUF)

06:40
Denver (DEN)
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:35, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3120
05:15
Buffalo (BUF)

06:50
Denver (DEN)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:35, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3120
05:30
Los Angeles (LAX) 1

06:45
Las Vegas Harry Reid (LAS) 1
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 WN3120
05:30
Los Angeles (LAX) 1

06:45
Las Vegas Harry Reid (LAS) 1
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 WN3120
05:30
Los Angeles (LAX) 1

06:45
Las Vegas Harry Reid (LAS) 1
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 WN3120
05:30
Los Angeles (LAX) 1

06:45
Las Vegas Harry Reid (LAS) 1
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 WN3120
05:30
Los Angeles (LAX) 1

06:45
Las Vegas Harry Reid (LAS) 1
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 WN3120
07:05
Buffalo (BUF)

08:35
Denver (DEN)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:30, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3120
07:25
Buffalo (BUF)

08:55
Denver (DEN)
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:30, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3120
08:20
Buffalo (BUF)

09:50
Denver (DEN)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:30, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3120
13:25
Los Angeles (LAX) 1

14:40
Las Vegas Harry Reid (LAS) 1
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3120
13:25
Los Angeles (LAX) 1

14:40
Las Vegas Harry Reid (LAS) 1
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3120
15:25
Phoenix Sky Harbor (PHX) 4

18:05
Colorado Springs (COS)
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3120
15:25
Phoenix Sky Harbor (PHX) 4

18:05
Colorado Springs (COS)
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3120
16:00
Phoenix Sky Harbor (PHX) 4

18:40
Colorado Springs (COS)
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3120
17:50
San Diego (SAN) 1

20:50
Salt Lake City (SLC)
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3120
17:50
San Diego (SAN) 1

20:50
Salt Lake City (SLC)
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3120
19:05
Midway, Chicago (MDW)

21:25
Love Field, Dallas (DAL) 1
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3120
19:30
Midway, Chicago (MDW)

21:45
Love Field, Dallas (DAL) 1
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3120
19:55
San Diego (SAN) 1

23:00
Salt Lake City (SLC)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3120
19:55
San Diego (SAN) 1

23:00
Salt Lake City (SLC)
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3120
20:25
Midway, Chicago (MDW)

22:40
Love Field, Dallas (DAL) 1
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3120
21:10
Midway, Chicago (MDW)

23:30
Love Field, Dallas (DAL) 1
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3120
22:05
Love Field, Dallas (DAL) 1

23:10
San Diego (SAN) 1
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN3120
19:05
Midway, Chicago (MDW)

23:10
San Diego (SAN) 1
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 6:05, 1-stop
Boeing 737-800 (73H)
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This flight number is listed as serving the following routes:
  • Buffalo (BUF) - Denver (DEN)
  • Los Angeles (LAX) - Las Vegas Harry Reid (LAS)
  • Love Field, Dallas (DAL) - San Diego (SAN)
  • Midway, Chicago (MDW) - Love Field, Dallas (DAL)
  • Midway, Chicago (MDW) - San Diego (SAN)
  • Phoenix Sky Harbor (PHX) - Colorado Springs (COS)
  • San Diego (SAN) - Salt Lake City (SLC)
All Southwest Airlines flights
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