Southwest Airlines flight WN 1721: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 06:40 Salt Lake City (SLC) 07:50 San Diego (SAN) 1
WN 1721 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2025-11-22 through 2025-11-29
Sat 06:40 Salt Lake City (SLC) 07:50 San Diego (SAN) 1
WN 1721 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2025-12-20 through 2026-01-03
Tue,Wed 06:50 Indianapolis (IND) 07:35 Denver (DEN)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Valid until 2025-06-04
Mon-Wed 07:10 Salt Lake City (SLC) 08:20 San Diego (SAN) 1
WN 1721 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 07:10 Salt Lake City (SLC) 08:20 San Diego (SAN) 1
WN 1721 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2025-12-19 through 2026-01-04
Thu 08:20 Houston Hobby (HOU) 10:35 Omaha (OMA)
WN 1721 Non-stop Boeing 737-800 (73H) 2:15 Operates only on 2025-11-27
Sat 08:45 Las Vegas Harry Reid (LAS) 1 15:35 Cleveland Hopkins (CLE)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2025-11-08 through 2025-11-15
Sat 08:45 Las Vegas Harry Reid (LAS) 1 15:35 Cleveland Hopkins (CLE)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2025-12-06 through 2025-12-13
Sun 09:10 Indianapolis (IND) 09:55 Denver (DEN)
WN 1721 Non-stop Boeing 737-700 (73W) 2:45 Valid until 2025-05-18
Sun 09:10 Indianapolis (IND) 09:55 Denver (DEN)
WN 1721 Non-stop Boeing 737-700 (73W) 2:45 Operates only on 2025-06-01
Sat 10:25 Indianapolis (IND) 11:10 Denver (DEN)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Valid until 2025-05-31
Sun 10:35 Atlanta (ATL) N 12:05 Tampa (TPA)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-06-08 through 2025-08-03
Sat 11:00 Denver (DEN) 15:30 Cincinnati (CVG)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2025-10-04 through 2025-11-01
Tue,Wed 11:05 Atlanta (ATL) N 12:30 Tampa (TPA)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-06-10 through 2025-07-30
Mon,Thu,Fri,Sun 11:10 Las Vegas Harry Reid (LAS) 1 18:05 Cleveland Hopkins (CLE)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 11:10 Las Vegas Harry Reid (LAS) 1 18:05 Cleveland Hopkins (CLE)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2025-11-21 through 2025-11-28
Fri,Sun 11:10 Las Vegas Harry Reid (LAS) 1 18:05 Cleveland Hopkins (CLE)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2025-12-07 through 2025-12-14
Thu 11:10 Las Vegas Harry Reid (LAS) 1 18:05 Cleveland Hopkins (CLE)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Operates only on 2025-12-18
Mon 11:10 Las Vegas Harry Reid (LAS) 1 18:05 Cleveland Hopkins (CLE)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Operates only on 2026-01-05
Thu 11:15 Omaha (OMA) 12:40 Midway, Chicago (MDW)
WN 1721 Non-stop Boeing 737-800 (73H) 1:25 Operates only on 2025-11-27
Mon,Thu,Fri 11:25 Indianapolis (IND) 12:10 Denver (DEN)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Valid until 2025-06-02
Fri 11:50 John Glenn Columbus (CMH) 12:55 Denver (DEN)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Operates only on 2025-07-04
Sun 13:20 Denver (DEN) 17:50 Cincinnati (CVG)
WN 1721 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2025-10-05 through 2025-10-26
Sun 13:35 Las Vegas Harry Reid (LAS) 1 20:30 Cleveland Hopkins (CLE)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Operates only on 2025-11-30
Mon,Thu,Fri 14:00 John Glenn Columbus (CMH) 15:10 Denver (DEN)
WN 1721 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 14:00 John Glenn Columbus (CMH) 15:10 Denver (DEN)
WN 1721 Non-stop Boeing 737-800 (73H) 3:10 Effective 2025-07-07 through 2025-08-04
Mon,Thu,Fri 15:30 Denver (DEN) 20:00 Cincinnati (CVG)
WN 1721 Non-stop Boeing 737-800 (73H) 2:30 Effective 2025-10-02 through 2025-10-31
Sat 16:15 Cincinnati (CVG) 16:25 Midway, Chicago (MDW)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2025-10-04 through 2025-11-01
Sat 17:15 Atlanta (ATL) N 18:45 Tampa (TPA)
WN 1721 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-06-07 through 2025-08-02
Mon,Thu,Fri 18:50 Denver (DEN) 20:15 San Diego (SAN) 1
WN 1721 Non-stop Boeing 737-700 (73W) 2:25 Effective 2025-08-07 through 2025-09-29
Tue,Wed 19:00 San Diego (SAN) 1 20:35 San Francisco (SFO) 2
WN 1721 Non-stop Boeing 737-700 (73W) 1:35 Effective 2025-08-05 through 2025-10-01
Sun 19:35 Denver (DEN) 21:00 San Diego (SAN) 1
WN 1721 Non-stop Boeing 737-700 (73W) 2:25 Operates only on 2025-08-31
Sat 20:15 Denver (DEN) 21:35 San Diego (SAN) 1
WN 1721 Non-stop Boeing 737-700 (73W) 2:20 Effective 2025-08-09 through 2025-09-27
Mon,Thu,Fri 20:50 San Diego (SAN) 1 22:25 San Francisco (SFO) 2
WN 1721 Non-stop Boeing 737-700 (73W) 1:35 Effective 2025-08-07 through 2025-09-29
Sun 22:00 Denver (DEN) 23:25 San Diego (SAN) 1
WN 1721 Non-stop Boeing 737-700 (73W) 2:25 Effective 2025-08-10 through 2025-08-24
Sun 22:00 Denver (DEN) 23:25 San Diego (SAN) 1
WN 1721 Non-stop Boeing 737-700 (73W) 2:25 Effective 2025-09-07 through 2025-09-28
Non-Direct Flights:
Thu 08:20 Houston Hobby (HOU) 12:40 Midway, Chicago (MDW)
WN 1721 1-stop Boeing 737-800 (73H) 4:20 Operates only on 2025-11-27
Sat 11:00 Denver (DEN) 16:25 Midway, Chicago (MDW)
WN 1721 1-stop Boeing 737 MAX 8 (7M8) 4:25 Effective 2025-10-04 through 2025-11-01
Mon,Thu,Fri 18:50 Denver (DEN) 22:25 San Francisco (SFO) 2
WN 1721 1-stop Boeing 737-700 (73W) 4:35 Effective 2025-08-07 through 2025-09-29
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 1721: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN1721
06:40
Salt Lake City (SLC)

07:50
San Diego (SAN) 1
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1721
06:40
Salt Lake City (SLC)

07:50
San Diego (SAN) 1
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1721
06:50
Indianapolis (IND)

07:35
Denver (DEN)
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
07:10
Salt Lake City (SLC)

08:20
San Diego (SAN) 1
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1721
07:10
Salt Lake City (SLC)

08:20
San Diego (SAN) 1
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1721
08:20
Houston Hobby (HOU)

10:35
Omaha (OMA)
Operates only on 2025-11-27
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1721
08:45
Las Vegas Harry Reid (LAS) 1

15:35
Cleveland Hopkins (CLE)
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
08:45
Las Vegas Harry Reid (LAS) 1

15:35
Cleveland Hopkins (CLE)
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
09:10
Indianapolis (IND)

09:55
Denver (DEN)
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:45, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1721
09:10
Indianapolis (IND)

09:55
Denver (DEN)
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:45, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1721
10:25
Indianapolis (IND)

11:10
Denver (DEN)
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
10:35
Atlanta (ATL) N

12:05
Tampa (TPA)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
11:00
Denver (DEN)

15:30
Cincinnati (CVG)
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
11:05
Atlanta (ATL) N

12:30
Tampa (TPA)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
11:10
Las Vegas Harry Reid (LAS) 1

18:05
Cleveland Hopkins (CLE)
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
11:10
Las Vegas Harry Reid (LAS) 1

18:05
Cleveland Hopkins (CLE)
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
11:10
Las Vegas Harry Reid (LAS) 1

18:05
Cleveland Hopkins (CLE)
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
11:10
Las Vegas Harry Reid (LAS) 1

18:05
Cleveland Hopkins (CLE)
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
11:10
Las Vegas Harry Reid (LAS) 1

18:05
Cleveland Hopkins (CLE)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
11:15
Omaha (OMA)

12:40
Midway, Chicago (MDW)
Operates only on 2025-11-27
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1721
11:25
Indianapolis (IND)

12:10
Denver (DEN)
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
11:50
John Glenn Columbus (CMH)

12:55
Denver (DEN)
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
13:20
Denver (DEN)

17:50
Cincinnati (CVG)
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1721
13:35
Las Vegas Harry Reid (LAS) 1

20:30
Cleveland Hopkins (CLE)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
14:00
John Glenn Columbus (CMH)

15:10
Denver (DEN)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1721
14:00
John Glenn Columbus (CMH)

15:10
Denver (DEN)
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1721
15:30
Denver (DEN)

20:00
Cincinnati (CVG)
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1721
16:15
Cincinnati (CVG)

16:25
Midway, Chicago (MDW)
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
17:15
Atlanta (ATL) N

18:45
Tampa (TPA)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
18:50
Denver (DEN)

20:15
San Diego (SAN) 1
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1721
19:00
San Diego (SAN) 1

20:35
San Francisco (SFO) 2
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1721
19:35
Denver (DEN)

21:00
San Diego (SAN) 1
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1721
20:15
Denver (DEN)

21:35
San Diego (SAN) 1
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1721
20:50
San Diego (SAN) 1

22:25
San Francisco (SFO) 2
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1721
22:00
Denver (DEN)

23:25
San Diego (SAN) 1
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1721
22:00
Denver (DEN)

23:25
San Diego (SAN) 1
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-700 (73W)
Non-Direct Flights:
Southwest Airlines WN1721
08:20
Houston Hobby (HOU)

12:40
Midway, Chicago (MDW)
Operates only on 2025-11-27
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:20, 1-stop
Boeing 737-800 (73H)
Southwest Airlines WN1721
11:00
Denver (DEN)

16:25
Midway, Chicago (MDW)
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:25, 1-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1721
18:50
Denver (DEN)

22:25
San Francisco (SFO) 2
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:35, 1-stop
Boeing 737-700 (73W)
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This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Tampa (TPA)
  • Cincinnati (CVG) - Midway, Chicago (MDW)
  • Denver (DEN) - Cincinnati (CVG)
  • Denver (DEN) - Midway, Chicago (MDW)
  • Denver (DEN) - San Diego (SAN)
  • Denver (DEN) - San Francisco (SFO)
  • Houston Hobby (HOU) - Midway, Chicago (MDW)
  • Houston Hobby (HOU) - Omaha (OMA)
  • Indianapolis (IND) - Denver (DEN)
  • John Glenn Columbus (CMH) - Denver (DEN)
  • Las Vegas Harry Reid (LAS) - Cleveland Hopkins (CLE)
  • Omaha (OMA) - Midway, Chicago (MDW)
  • Salt Lake City (SLC) - San Diego (SAN)
  • San Diego (SAN) - San Francisco (SFO)
All Southwest Airlines flights
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