Southwest Airlines flight WN 2121: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sun 06:15 New York LaGuardia (LGA) B 07:35 Midway, Chicago (MDW)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2025-06-08 through 2025-08-03
Thu 07:35 Tampa (TPA) 09:05 Saint Louis (STL) 2
WN 2121 Non-stop Boeing 737-800 (73H) 2:30 Operates only on 2025-11-27
Mon,Thu,Fri 07:40 Midway, Chicago (MDW) 10:30 Atlanta (ATL) N
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 1:50 Effective 2025-08-07 through 2025-09-29
Sat 07:45 Midway, Chicago (MDW) 10:05 Portland (PDX)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 4:20 Effective 2025-06-07 through 2025-08-02
Tue,Wed 07:50 Midway, Chicago (MDW) 10:10 Portland (PDX)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 4:20 Effective 2025-06-10 through 2025-07-30
Tue,Wed,Sun 07:50 Houston Hobby (HOU) 09:10 San Diego (SAN) 1
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-10-05 through 2025-10-29
Sun 08:15 Midway, Chicago (MDW) 10:35 Portland (PDX)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 4:20 Effective 2025-06-08 through 2025-08-03
Sun 09:55 San Diego (SAN) 1 11:25 Las Vegas Harry Reid (LAS) 1
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 10:05 Houston Hobby (HOU) 13:15 Greenville/Spartanburg (GSP)
WN 2121 Non-stop Boeing 737-700 (73W) 2:10 Valid until 2025-06-02
Tue,Wed 10:05 Midway, Chicago (MDW) 13:00 Atlanta (ATL) N
WN 2121 Non-stop Boeing 737-700 (73W) 1:55 Effective 2025-08-05 through 2025-10-01
Sat 10:40 Houston Hobby (HOU) 13:50 Greenville/Spartanburg (GSP)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Valid until 2025-05-31
Tue,Wed 11:55 Houston Hobby (HOU) 15:05 Greenville/Spartanburg (GSP)
WN 2121 Non-stop Boeing 737-700 (73W) 2:10 Valid until 2025-06-04
Mon,Thu,Fri 11:55 Colorado Springs (COS) 12:55 Las Vegas Harry Reid (LAS) 1
WN 2121 Non-stop Boeing 737-800 (73H) 2:00 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 11:55 Colorado Springs (COS) 12:55 Las Vegas Harry Reid (LAS) 1
WN 2121 Non-stop Boeing 737-800 (73H) 2:00 Effective 2025-07-07 through 2025-08-04
Sun 12:45 Houston Hobby (HOU) 15:55 Greenville/Spartanburg (GSP)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Operates only on 2025-05-25
Sun 13:15 Houston Hobby (HOU) 16:25 Greenville/Spartanburg (GSP)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Valid until 2025-05-18
Sun 13:15 Houston Hobby (HOU) 16:25 Greenville/Spartanburg (GSP)
WN 2121 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Operates only on 2025-06-01
Sat 19:45 Burbank (BUR) 22:15 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-11-08 through 2025-11-15
Sun 19:45 Burbank (BUR) 22:15 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Operates only on 2025-11-30
Sat 19:45 Burbank (BUR) 22:15 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-12-06 through 2025-12-13
Sat 20:00 Burbank (BUR) 22:30 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-11-22 through 2025-11-29
Sat 20:00 Burbank (BUR) 22:30 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-12-20 through 2026-01-03
Mon-Wed 20:05 Burbank (BUR) 22:35 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 20:05 Burbank (BUR) 22:35 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-12-19 through 2026-01-04
Mon,Thu,Fri,Sun 20:15 Burbank (BUR) 22:40 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 20:15 Burbank (BUR) 22:40 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-21 through 2025-11-28
Fri,Sun 20:15 Burbank (BUR) 22:40 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-07 through 2025-12-14
Thu 20:15 Burbank (BUR) 22:40 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2025-12-18
Mon 20:15 Burbank (BUR) 22:40 Phoenix Sky Harbor (PHX) 4
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2026-01-05
Sun 22:50 Phoenix Sky Harbor (PHX) 4 00:25 Salt Lake City (SLC)
WN 2121 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Operates only on 2025-11-30
The flight arrives 1 day after departure.
Non-Direct Flights:
Sun 06:15 New York LaGuardia (LGA) B 10:35 Portland (PDX)
WN 2121 1-stop Boeing 737 MAX 8 (7M8) 7:20 Effective 2025-06-08 through 2025-08-03
Sun 07:50 Houston Hobby (HOU) 11:25 Las Vegas Harry Reid (LAS) 1
WN 2121 1-stop Boeing 737 MAX 8 (7M8) 5:35 Effective 2025-10-05 through 2025-10-26
Sun 19:45 Burbank (BUR) 00:25 Salt Lake City (SLC)
WN 2121 1-stop Boeing 737-700 (Scimitar Winglets) 3:40 Operates only on 2025-11-30
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 2121: Multiple routes
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Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN2121
06:15
New York LaGuardia (LGA) B

07:35
Midway, Chicago (MDW)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
07:35
Tampa (TPA)

09:05
Saint Louis (STL) 2
Operates only on 2025-11-27
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN2121
07:40
Midway, Chicago (MDW)

10:30
Atlanta (ATL) N
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:50, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
07:45
Midway, Chicago (MDW)

10:05
Portland (PDX)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
07:50
Midway, Chicago (MDW)

10:10
Portland (PDX)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
07:50
Houston Hobby (HOU)

09:10
San Diego (SAN) 1
Effective 2025-10-05 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
08:15
Midway, Chicago (MDW)

10:35
Portland (PDX)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
09:55
San Diego (SAN) 1

11:25
Las Vegas Harry Reid (LAS) 1
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
10:05
Houston Hobby (HOU)

13:15
Greenville/Spartanburg (GSP)
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
10:05
Midway, Chicago (MDW)

13:00
Atlanta (ATL) N
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
10:40
Houston Hobby (HOU)

13:50
Greenville/Spartanburg (GSP)
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
11:55
Houston Hobby (HOU)

15:05
Greenville/Spartanburg (GSP)
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN2121
11:55
Colorado Springs (COS)

12:55
Las Vegas Harry Reid (LAS) 1
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN2121
11:55
Colorado Springs (COS)

12:55
Las Vegas Harry Reid (LAS) 1
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN2121
12:45
Houston Hobby (HOU)

15:55
Greenville/Spartanburg (GSP)
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
13:15
Houston Hobby (HOU)

16:25
Greenville/Spartanburg (GSP)
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
13:15
Houston Hobby (HOU)

16:25
Greenville/Spartanburg (GSP)
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
19:45
Burbank (BUR)

22:15
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
19:45
Burbank (BUR)

22:15
Phoenix Sky Harbor (PHX) 4
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
19:45
Burbank (BUR)

22:15
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
20:00
Burbank (BUR)

22:30
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
20:00
Burbank (BUR)

22:30
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
20:05
Burbank (BUR)

22:35
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
20:05
Burbank (BUR)

22:35
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
20:15
Burbank (BUR)

22:40
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
20:15
Burbank (BUR)

22:40
Phoenix Sky Harbor (PHX) 4
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
20:15
Burbank (BUR)

22:40
Phoenix Sky Harbor (PHX) 4
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
20:15
Burbank (BUR)

22:40
Phoenix Sky Harbor (PHX) 4
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
20:15
Burbank (BUR)

22:40
Phoenix Sky Harbor (PHX) 4
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN2121
22:50
Phoenix Sky Harbor (PHX) 4

00:25(+1)
Salt Lake City (SLC)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN2121
06:15
New York LaGuardia (LGA) B

10:35
Portland (PDX)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:20, 1-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
07:50
Houston Hobby (HOU)

11:25
Las Vegas Harry Reid (LAS) 1
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:35, 1-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN2121
19:45
Burbank (BUR)

00:25(+1)
Salt Lake City (SLC)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:40, 1-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Burbank (BUR) - Phoenix Sky Harbor (PHX)
  • Burbank (BUR) - Salt Lake City (SLC)
  • Colorado Springs (COS) - Las Vegas Harry Reid (LAS)
  • Houston Hobby (HOU) - Greenville/Spartanburg (GSP)
  • Houston Hobby (HOU) - Las Vegas Harry Reid (LAS)
  • Houston Hobby (HOU) - San Diego (SAN)
  • Midway, Chicago (MDW) - Atlanta (ATL)
  • Midway, Chicago (MDW) - Portland (PDX)
  • New York LaGuardia (LGA) - Midway, Chicago (MDW)
  • New York LaGuardia (LGA) - Portland (PDX)
  • Phoenix Sky Harbor (PHX) - Salt Lake City (SLC)
  • San Diego (SAN) - Las Vegas Harry Reid (LAS)
  • Tampa (TPA) - Saint Louis (STL)
All Southwest Airlines flights
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