Southwest Airlines flight WN 999: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 05:30 Boston Logan (BOS) B 07:20 Saint Louis (STL) 2
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2026-08-08 through 2026-09-26
Fri,Sun 06:20 Wichita (ICT) 06:55 Denver (DEN)
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-01-02 through 2026-01-04
Mon 07:00 Wichita (ICT) 07:35 Denver (DEN)
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Operates only on 2026-01-05
Tue,Wed 08:15 Saint Louis (STL) 2 10:50 Atlanta (ATL) N
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-02-10 through 2026-02-11
Tue,Wed 08:15 Saint Louis (STL) 2 10:50 Atlanta (ATL) N
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-02-18 through 2026-03-04
Mon-Fri 08:20 Saint Louis (STL) 2 10:55 Atlanta (ATL) N
WN 999 Non-stop Boeing 737-800 (73H) 1:35 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 08:20 Saint Louis (STL) 2 10:55 Atlanta (ATL) N
WN 999 Non-stop Boeing 737-800 (73H) 1:35 Effective 2026-01-18 through 2026-01-23
Mon-Fri 08:20 Saint Louis (STL) 2 10:55 Atlanta (ATL) N
WN 999 Non-stop Boeing 737-800 (73H) 1:35 Effective 2026-01-26 through 2026-02-04
Sun 08:20 Saint Louis (STL) 2 10:55 Atlanta (ATL) N
WN 999 Non-stop Boeing 737-800 (73H) 1:35 Operates only on 2026-02-08
Wed,Thu 08:35 Wichita (ICT) 09:15 Denver (DEN)
WN 999 Non-stop Boeing 737-700 (73W) 1:40 Valid until 2026-01-01
Mon,Thu,Fri 08:35 Kansas City (MCI) 09:20 Denver (DEN)
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-08-06 through 2026-09-28
Mon,Thu,Fri 10:10 Burbank (BUR) 11:25 San Jose (SJC) B
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-04-09 through 2026-06-01
Mon,Thu,Fri 10:55 San Diego (SAN) 1 14:20 Denver (DEN)
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-03-05 through 2026-04-06
Tue,Wed 11:45 San Diego (SAN) 1 19:50 Baltimore (BWI)
WN 999 Non-stop Boeing 737-800 (73H) 5:05 Effective 2026-06-09 through 2026-07-29
Sun 12:50 Austin (AUS) 13:45 Las Vegas Harry Reid (LAS) 1
WN 999 Non-stop Boeing 737-800 (73H) 2:55 Operates only on 2026-05-24
Sun 13:55 Denver (DEN) 17:05 San Antonio (SAT) A
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-03-08 through 2026-04-05
Thu,Fri,Sun 14:20 Saint Louis (STL) 2 16:50 Atlanta (ATL) N
WN 999 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-01-11 through 2026-01-16
Mon,Sun 14:20 Saint Louis (STL) 2 16:50 Atlanta (ATL) N
WN 999 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 14:20 Saint Louis (STL) 2 16:50 Atlanta (ATL) N
WN 999 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-01 through 2026-02-06
Mon,Sun 14:20 Saint Louis (STL) 2 16:50 Atlanta (ATL) N
WN 999 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 14:20 Saint Louis (STL) 2 16:50 Atlanta (ATL) N
WN 999 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-17 through 2026-02-23
Mon 14:20 Saint Louis (STL) 2 16:50 Atlanta (ATL) N
WN 999 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2026-03-02
Tue,Wed 14:55 Denver (DEN) 18:05 San Antonio (SAT) A
WN 999 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 15:00 Denver (DEN) 18:10 San Antonio (SAT) A
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-03-05 through 2026-04-06
Sat 15:55 Kansas City (MCI) 19:35 Orlando (MCO)
WN 999 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-01-10 through 2026-02-07
Sat 17:10 Dallas Love Field (DAL) 1 19:00 Oakland (OAK) 2
WN 999 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2026-04-11 through 2026-05-30
Tue,Wed 17:45 Boston Logan (BOS) B 19:40 Saint Louis (STL) 2
WN 999 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-08-04 through 2026-09-30
Mon,Thu,Fri 17:50 Fort Lauderdale (FLL) 1 20:20 Baltimore (BWI)
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-06-04 through 2026-08-03
Sun 17:50 Boston Logan (BOS) B 19:45 Saint Louis (STL) 2
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 2:55 Effective 2026-08-09 through 2026-09-27
Mon,Thu-Sat 18:40 San Antonio (SAT) A 19:40 Houston Hobby (HOU)
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 1:00 Effective 2026-03-05 through 2026-04-06
Mon,Thu,Fri 19:50 Oakland (OAK) 2 21:20 Palm Springs (PSP)
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 19:50 Oakland (OAK) 2 21:20 Palm Springs (PSP)
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-20 through 2026-03-01
Tue,Wed 20:00 Dallas Love Field (DAL) 1 21:45 Oakland (OAK) 2
WN 999 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-04-07 through 2026-06-03
Tue,Wed 20:30 Baltimore (BWI) 21:35 Chicago Midway (MDW)
WN 999 Non-stop Boeing 737-800 (73H) 2:05 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 20:55 Baltimore (BWI) 22:00 Chicago Midway (MDW)
WN 999 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-06-04 through 2026-08-03
Sat 21:25 Baltimore (BWI) 22:25 Chicago Midway (MDW)
WN 999 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-06-06 through 2026-08-01
Non-Direct Flights:
Mon,Thu,Fri 10:55 San Diego (SAN) 1 18:10 San Antonio (SAT) A
WN 999 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-03-05 through 2026-04-06
Tue,Wed 11:45 San Diego (SAN) 1 21:35 Chicago Midway (MDW)
WN 999 1-stop Boeing 737-800 (73H) 7:50 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 15:00 Denver (DEN) 19:40 Houston Hobby (HOU)
WN 999 1-stop Boeing 737-700 (Scimitar Winglets) 3:40 Effective 2026-03-05 through 2026-04-06
Mon,Thu,Fri 17:50 Fort Lauderdale (FLL) 1 22:00 Chicago Midway (MDW)
WN 999 1-stop Boeing 737-700 (Scimitar Winglets) 5:10 Effective 2026-06-04 through 2026-08-03
Mon,Thu,Fri 10:55 San Diego (SAN) 1 19:40 Houston Hobby (HOU)
WN 999 2-stop Boeing 737-700 (Scimitar Winglets) 6:45 Effective 2026-03-05 through 2026-04-06
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This flight number is listed as serving the following routes:
Southwest Airlines flight WN 999: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Southwest Airlines WN999
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-01-02 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-02-10 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN999
Effective 2026-01-18 through 2026-01-23
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN999
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN999
Operates only on 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN999
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (73W)

Direct Flights:

Southwest Airlines WN999
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN999
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN999
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN999
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN999
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN999
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN999
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN999
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN999
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN999
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN999
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN999
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN999
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 1:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN999
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN999
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN999
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN999
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN999
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:50, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN999
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:40, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN999
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:10, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN999
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 6:45, 2-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Austin (AUS) - Las Vegas Harry Reid (LAS)
  • Baltimore (BWI) - Chicago Midway (MDW)
  • Boston Logan (BOS) - Saint Louis (STL)
  • Burbank (BUR) - San Jose (SJC)
  • Dallas Love Field (DAL) - Oakland (OAK)
  • Denver (DEN) - Houston Hobby (HOU)
  • Denver (DEN) - San Antonio (SAT)
  • Fort Lauderdale (FLL) - Baltimore (BWI)
  • Fort Lauderdale (FLL) - Chicago Midway (MDW)
  • Kansas City (MCI) - Denver (DEN)
  • Kansas City (MCI) - Orlando (MCO)
  • Oakland (OAK) - Palm Springs (PSP)
  • Saint Louis (STL) - Atlanta (ATL)
  • San Antonio (SAT) - Houston Hobby (HOU)
  • San Diego (SAN) - Baltimore (BWI)
  • San Diego (SAN) - Chicago Midway (MDW)
  • San Diego (SAN) - Denver (DEN)
  • San Diego (SAN) - Houston Hobby (HOU)
  • San Diego (SAN) - San Antonio (SAT)
  • Wichita (ICT) - Denver (DEN)