Southwest Airlines flight WN 423: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri,Sun 06:05 Atlanta (ATL) N 07:00 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737-800 (73H) 1:55 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 06:05 Atlanta (ATL) N 07:00 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737-800 (73H) 1:55 Effective 2025-11-21 through 2025-11-28
Fri,Sun 06:05 Atlanta (ATL) N 07:00 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737-800 (73H) 1:55 Effective 2025-12-07 through 2025-12-14
Thu 06:05 Atlanta (ATL) N 07:00 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737-800 (73H) 1:55 Operates only on 2025-12-18
Mon 06:05 Atlanta (ATL) N 07:00 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737-800 (73H) 1:55 Operates only on 2026-01-05
Sat 06:10 Atlanta (ATL) N 07:05 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2025-11-08 through 2025-11-15
Sat 06:10 Atlanta (ATL) N 07:05 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2025-12-06 through 2025-12-13
Sun 07:40 Atlanta (ATL) N 08:35 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Operates only on 2025-11-30
Mon,Thu,Fri 09:45 Las Vegas Harry Reid (LAS) 1 14:20 San Antonio (SAT) A
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Valid until 2025-06-02
Thu 11:00 Lubbock (LBB) 12:15 Austin (AUS)
WN 423 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Operates only on 2025-11-27
Sun 11:10 Midway, Chicago (MDW) 13:25 Love Field, Dallas (DAL) 1
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Operates only on 2025-08-31
Sat 11:25 Midway, Chicago (MDW) 13:40 Love Field, Dallas (DAL) 1
WN 423 Non-stop Boeing 737-800 (73H) 2:15 Effective 2025-08-09 through 2025-09-27
Tue,Wed 11:35 Midway, Chicago (MDW) 13:50 Love Field, Dallas (DAL) 1
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-08-05 through 2025-10-01
Sat 12:00 Long Beach (LGB) 13:20 Oakland (OAK) 2
WN 423 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-10-04 through 2025-11-01
Tue,Wed 12:10 Atlanta (ATL) N 13:05 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2025-11-04 through 2025-11-12
Mon-Thu 12:10 Atlanta (ATL) N 13:05 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2025-11-17 through 2025-11-20
Mon-Fri 12:10 Atlanta (ATL) N 13:05 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2025-12-02 through 2025-12-11
Mon-Wed 12:10 Atlanta (ATL) N 13:05 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2025-12-15 through 2025-12-17
Wed,Thu 12:10 Atlanta (ATL) N 13:05 Midway, Chicago (MDW)
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2025-12-24 through 2026-01-01
Mon,Thu,Fri 12:25 Midway, Chicago (MDW) 14:40 Love Field, Dallas (DAL) 1
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-08-07 through 2025-09-29
Sun 12:45 Midway, Chicago (MDW) 15:00 Love Field, Dallas (DAL) 1
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-08-10 through 2025-08-24
Sun 12:45 Midway, Chicago (MDW) 15:00 Love Field, Dallas (DAL) 1
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-09-07 through 2025-09-28
Tue,Wed 13:30 Las Vegas Harry Reid (LAS) 1 18:10 San Antonio (SAT) A
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Valid until 2025-06-04
Sat 14:10 Nashville (BNA) 17:00 Sarasota/Bradenton (SRQ)
WN 423 Non-stop Boeing 737-700 (73W) 1:50 Effective 2025-05-24 through 2025-05-31
Sat 14:20 Nashville (BNA) 17:10 Sarasota/Bradenton (SRQ)
WN 423 Non-stop Boeing 737-700 (73W) 1:50 Valid until 2025-05-17
Sun 14:25 Long Beach (LGB) 15:45 Oakland (OAK) 2
WN 423 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-10-05 through 2025-10-26
Sun 15:00 Ronald Reagan Washington (DCA) 16:55 Atlanta (ATL) N
WN 423 Non-stop Boeing 737-700 (73W) 1:55 Effective 2025-06-08 through 2025-08-03
Tue,Wed 17:15 Sacramento (SMF) B 18:40 Long Beach (LGB)
WN 423 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-06-10 through 2025-07-30
Sun 17:30 Atlanta (ATL) N 19:10 Orlando (MCO)
WN 423 Non-stop Boeing 737-700 (73W) 1:40 Effective 2025-06-08 through 2025-08-03
Tue,Wed 17:50 Atlanta (ATL) N 19:10 Las Vegas Harry Reid (LAS) 1
WN 423 Non-stop Boeing 737-800 (73H) 4:20 Effective 2025-10-07 through 2025-10-29
Sat 18:50 Sacramento (SMF) B 20:15 Long Beach (LGB)
WN 423 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-06-07 through 2025-08-02
Mon,Thu,Fri 19:20 Atlanta (ATL) N 20:45 Las Vegas Harry Reid (LAS) 1
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 4:25 Effective 2025-10-02 through 2025-10-31
Sun 19:50 Midway, Chicago (MDW) 21:40 Denver (DEN)
WN 423 Non-stop Boeing 737-800 (73H) 2:50 Valid until 2025-05-18
Sun 19:50 Midway, Chicago (MDW) 21:40 Denver (DEN)
WN 423 Non-stop Boeing 737-800 (73H) 2:50 Operates only on 2025-06-01
Mon,Thu,Fri 20:45 Atlanta (ATL) N 22:20 Orlando (MCO)
WN 423 Non-stop Boeing 737-700 (73W) 1:35 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 20:45 Atlanta (ATL) N 22:20 Orlando (MCO)
WN 423 Non-stop Boeing 737-700 (73W) 1:35 Effective 2025-07-07 through 2025-08-04
Tue,Wed,Sat 21:05 Denver (DEN) 23:25 Wichita (ICT)
WN 423 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-11-22 through 2025-11-29
Mon 21:05 Denver (DEN) 23:25 Wichita (ICT)
WN 423 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Operates only on 2025-12-01
Mon,Tue,Fri-Sun 21:05 Denver (DEN) 23:25 Wichita (ICT)
WN 423 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-12-19 through 2026-01-04
Mon,Thu,Fri 21:25 Las Vegas Harry Reid (LAS) 1 22:55 San Jose (SJC) B
WN 423 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-10-02 through 2025-10-31
Non-Direct Flights:
Sun 15:00 Ronald Reagan Washington (DCA) 19:10 Orlando (MCO)
WN 423 1-stop Boeing 737-700 (73W) 4:10 Effective 2025-06-08 through 2025-08-03
Mon,Thu,Fri 19:20 Atlanta (ATL) N 22:55 San Jose (SJC) B
WN 423 1-stop Boeing 737 MAX 8 (7M8) 6:35 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 423: Multiple routes
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN423
06:05
Atlanta (ATL) N

07:00
Midway, Chicago (MDW)
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
06:05
Atlanta (ATL) N

07:00
Midway, Chicago (MDW)
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
06:05
Atlanta (ATL) N

07:00
Midway, Chicago (MDW)
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
06:05
Atlanta (ATL) N

07:00
Midway, Chicago (MDW)
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
06:05
Atlanta (ATL) N

07:00
Midway, Chicago (MDW)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
06:10
Atlanta (ATL) N

07:05
Midway, Chicago (MDW)
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN423
06:10
Atlanta (ATL) N

07:05
Midway, Chicago (MDW)
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN423
07:40
Atlanta (ATL) N

08:35
Midway, Chicago (MDW)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN423
09:45
Las Vegas Harry Reid (LAS) 1

14:20
San Antonio (SAT) A
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
11:00
Lubbock (LBB)

12:15
Austin (AUS)
Operates only on 2025-11-27
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN423
11:10
Midway, Chicago (MDW)

13:25
Love Field, Dallas (DAL) 1
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
11:25
Midway, Chicago (MDW)

13:40
Love Field, Dallas (DAL) 1
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
11:35
Midway, Chicago (MDW)

13:50
Love Field, Dallas (DAL) 1
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
12:00
Long Beach (LGB)

13:20
Oakland (OAK) 2
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN423
12:10
Atlanta (ATL) N

13:05
Midway, Chicago (MDW)
Effective 2025-11-04 through 2025-11-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
12:10
Atlanta (ATL) N

13:05
Midway, Chicago (MDW)
Effective 2025-11-17 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
12:10
Atlanta (ATL) N

13:05
Midway, Chicago (MDW)
Effective 2025-12-02 through 2025-12-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
12:10
Atlanta (ATL) N

13:05
Midway, Chicago (MDW)
Effective 2025-12-15 through 2025-12-17
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
12:10
Atlanta (ATL) N

13:05
Midway, Chicago (MDW)
Effective 2025-12-24 through 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
12:25
Midway, Chicago (MDW)

14:40
Love Field, Dallas (DAL) 1
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
12:45
Midway, Chicago (MDW)

15:00
Love Field, Dallas (DAL) 1
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
12:45
Midway, Chicago (MDW)

15:00
Love Field, Dallas (DAL) 1
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
13:30
Las Vegas Harry Reid (LAS) 1

18:10
San Antonio (SAT) A
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
14:10
Nashville (BNA)

17:00
Sarasota/Bradenton (SRQ)
Effective 2025-05-24 through 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN423
14:20
Nashville (BNA)

17:10
Sarasota/Bradenton (SRQ)
Valid until 2025-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN423
14:25
Long Beach (LGB)

15:45
Oakland (OAK) 2
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN423
15:00
Ronald Reagan Washington (DCA)

16:55
Atlanta (ATL) N
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN423
17:15
Sacramento (SMF) B

18:40
Long Beach (LGB)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
17:30
Atlanta (ATL) N

19:10
Orlando (MCO)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN423
17:50
Atlanta (ATL) N

19:10
Las Vegas Harry Reid (LAS) 1
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:20, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
18:50
Sacramento (SMF) B

20:15
Long Beach (LGB)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN423
19:20
Atlanta (ATL) N

20:45
Las Vegas Harry Reid (LAS) 1
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN423
19:50
Midway, Chicago (MDW)

21:40
Denver (DEN)
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:50, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
19:50
Midway, Chicago (MDW)

21:40
Denver (DEN)
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:50, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN423
20:45
Atlanta (ATL) N

22:20
Orlando (MCO)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN423
20:45
Atlanta (ATL) N

22:20
Orlando (MCO)
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN423
21:05
Denver (DEN)

23:25
Wichita (ICT)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN423
21:05
Denver (DEN)

23:25
Wichita (ICT)
Operates only on 2025-12-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN423
21:05
Denver (DEN)

23:25
Wichita (ICT)
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN423
21:25
Las Vegas Harry Reid (LAS) 1

22:55
San Jose (SJC) B
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN423
15:00
Ronald Reagan Washington (DCA)

19:10
Orlando (MCO)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:10, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN423
19:20
Atlanta (ATL) N

22:55
San Jose (SJC) B
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 6:35, 1-stop
Boeing 737 MAX 8 (7M8)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Las Vegas Harry Reid (LAS)
  • Atlanta (ATL) - Midway, Chicago (MDW)
  • Atlanta (ATL) - Orlando (MCO)
  • Atlanta (ATL) - San Jose (SJC)
  • Denver (DEN) - Wichita (ICT)
  • Las Vegas Harry Reid (LAS) - San Antonio (SAT)
  • Las Vegas Harry Reid (LAS) - San Jose (SJC)
  • Long Beach (LGB) - Oakland (OAK)
  • Lubbock (LBB) - Austin (AUS)
  • Midway, Chicago (MDW) - Denver (DEN)
  • Midway, Chicago (MDW) - Love Field, Dallas (DAL)
  • Nashville (BNA) - Sarasota/Bradenton (SRQ)
  • Ronald Reagan Washington (DCA) - Atlanta (ATL)
  • Ronald Reagan Washington (DCA) - Orlando (MCO)
  • Sacramento (SMF) - Long Beach (LGB)
All Southwest Airlines flights
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