Southwest Airlines flight WN 1688: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Thu,Fri,Sun 05:20 El Paso (ELP) 07:50 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-01-11 through 2026-01-16
Mon,Sun 05:20 El Paso (ELP) 07:50 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 05:20 El Paso (ELP) 07:50 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-01 through 2026-02-06
Mon,Sun 05:20 El Paso (ELP) 07:50 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 05:20 El Paso (ELP) 07:50 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-17 through 2026-02-23
Mon 05:20 El Paso (ELP) 07:50 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2026-03-02
Mon,Thu,Fri 05:30 El Paso (ELP) 08:00 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 05:30 El Paso (ELP) 08:00 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-20 through 2026-03-01
Sat 06:00 El Paso (ELP) 08:30 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 06:10 Baltimore (BWI) 08:45 Las Vegas Harry Reid (LAS) 1
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 5:35 Effective 2026-03-05 through 2026-04-06
Sat 06:10 Baltimore (BWI) 08:45 Las Vegas Harry Reid (LAS) 1
WN 1688 Non-stop Boeing 737-700 (Scimitar Winglets) 5:35 Effective 2026-03-07 through 2026-04-04
Tue,Wed 06:10 Baltimore (BWI) 08:45 Las Vegas Harry Reid (LAS) 1
WN 1688 Non-stop Boeing 737-800 (73H) 5:35 Effective 2026-03-10 through 2026-04-01
Wed,Thu 07:50 Tulsa (TUL) 09:35 Phoenix Sky Harbor (PHX) 4
WN 1688 Non-stop Boeing 737-800 (73H) 2:45 Valid until 2026-01-01
Mon,Thu,Fri 09:25 Las Vegas Harry Reid (LAS) 1 12:20 Denver (DEN)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2026-03-05 through 2026-04-06
Sun 10:00 Las Vegas Harry Reid (LAS) 1 12:50 Denver (DEN)
WN 1688 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-03-08 through 2026-04-05
Mon-Fri 12:50 El Paso (ELP) 15:25 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 12:50 El Paso (ELP) 15:25 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-01-18 through 2026-01-23
Mon-Fri 12:50 El Paso (ELP) 15:25 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-01-26 through 2026-02-04
Tue,Wed 12:50 El Paso (ELP) 15:25 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-02-10 through 2026-02-11
Tue,Wed 12:50 El Paso (ELP) 15:25 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-02-24 through 2026-03-04
Wed 12:55 El Paso (ELP) 15:30 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Operates only on 2026-02-18
Sun 13:00 El Paso (ELP) 15:30 Austin (AUS)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2026-02-08
Mon,Thu,Fri 14:35 Houston Hobby (HOU) 16:40 Saint Louis (STL) 2
WN 1688 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-04-09 through 2026-06-01
Mon,Thu,Fri 17:15 Saint Louis (STL) 2 18:35 Denver (DEN)
WN 1688 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-04-09 through 2026-06-01
Daily 17:25 Honolulu (HNL) 2 18:10 Kahului (OGG)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 0:45 Effective 2026-08-04 through 2026-09-30
Sun 17:35 Saint Louis (STL) 2 18:55 Denver (DEN)
WN 1688 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-04-12 through 2026-05-17
Sun 17:35 Saint Louis (STL) 2 18:55 Denver (DEN)
WN 1688 Non-stop Boeing 737-800 (73H) 2:20 Operates only on 2026-05-31
Tue,Wed 17:40 Saint Louis (STL) 2 19:00 Denver (DEN)
WN 1688 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-04-07 through 2026-06-03
Sat 17:50 Saint Louis (STL) 2 19:10 Denver (DEN)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-04-11 through 2026-05-30
Sun 19:10 Nashville (BNA) 21:20 Greenville/Spartanburg (GSP)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Operates only on 2026-05-24
Tue,Wed 19:40 Denver (DEN) 00:40 Pittsburgh (PIT)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-06-09 through 2026-07-29
The flight arrives 1 day after departure.
Mon,Thu,Fri 20:00 Denver (DEN) 01:00 Pittsburgh (PIT)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-06-04 through 2026-08-03
The flight arrives 1 day after departure.
Mon 20:20 Indianapolis (IND) 22:45 Fort Myers (RSW)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Operates only on 2026-01-05
Mon,Tue,Fri,Sun 21:45 Indianapolis (IND) 00:10 Fort Myers (RSW)
WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Valid until 2026-01-04
The flight arrives 1 day after departure.
Non-Direct Flights:
Mon,Thu,Fri 06:10 Baltimore (BWI) 12:20 Denver (DEN)
WN 1688 1-stop Boeing 737 MAX 8 (7M8) 8:10 Effective 2026-03-05 through 2026-04-06
Mon,Thu,Fri 14:35 Houston Hobby (HOU) 18:35 Denver (DEN)
WN 1688 1-stop Boeing 737-700 (Scimitar Winglets) 5:00 Effective 2026-04-09 through 2026-06-01
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 1688: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN1688
05:20
El Paso (ELP)

07:50
Austin (AUS)
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 WN1688
05:20
El Paso (ELP)

07:50
Austin (AUS)
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 WN1688
05:20
El Paso (ELP)

07:50
Austin (AUS)
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 WN1688
05:20
El Paso (ELP)

07:50
Austin (AUS)
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 WN1688
05:20
El Paso (ELP)

07:50
Austin (AUS)
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 WN1688
05:20
El Paso (ELP)

07:50
Austin (AUS)
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 WN1688
05:30
El Paso (ELP)

08:00
Austin (AUS)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
05:30
El Paso (ELP)

08:00
Austin (AUS)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
06:00
El Paso (ELP)

08:30
Austin (AUS)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
06:10
Baltimore (BWI)

08:45
Las Vegas Harry Reid (LAS) 1
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
06:10
Baltimore (BWI)

08:45
Las Vegas Harry Reid (LAS) 1
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN1688
06:10
Baltimore (BWI)

08:45
Las Vegas Harry Reid (LAS) 1
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1688
07:50
Tulsa (TUL)

09:35
Phoenix Sky Harbor (PHX) 4
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1688
09:25
Las Vegas Harry Reid (LAS) 1

12:20
Denver (DEN)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
10:00
Las Vegas Harry Reid (LAS) 1

12:50
Denver (DEN)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1688
12:50
El Paso (ELP)

15:25
Austin (AUS)
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
12:50
El Paso (ELP)

15:25
Austin (AUS)
Effective 2026-01-18 through 2026-01-23
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
12:50
El Paso (ELP)

15:25
Austin (AUS)
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
12:50
El Paso (ELP)

15:25
Austin (AUS)
Effective 2026-02-10 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
12:50
El Paso (ELP)

15:25
Austin (AUS)
Effective 2026-02-24 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
12:55
El Paso (ELP)

15:30
Austin (AUS)
Operates only on 2026-02-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
13:00
El Paso (ELP)

15:30
Austin (AUS)
Operates only on 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
14:35
Houston Hobby (HOU)

16:40
Saint Louis (STL) 2
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN1688
17:15
Saint Louis (STL) 2

18:35
Denver (DEN)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN1688
17:25
Honolulu (HNL) 2

18:10
Kahului (OGG)
Effective 2026-08-04 through 2026-09-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
17:35
Saint Louis (STL) 2

18:55
Denver (DEN)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1688
17:35
Saint Louis (STL) 2

18:55
Denver (DEN)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1688
17:40
Saint Louis (STL) 2

19:00
Denver (DEN)
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN1688
17:50
Saint Louis (STL) 2

19:10
Denver (DEN)
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
19:10
Nashville (BNA)

21:20
Greenville/Spartanburg (GSP)
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
19:40
Denver (DEN)

00:40(+1)
Pittsburgh (PIT)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN1688
20:00
Denver (DEN)

01:00(+1)
Pittsburgh (PIT)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN1688
20:20
Indianapolis (IND)

22:45
Fort Myers (RSW)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1688
21:45
Indianapolis (IND)

00:10(+1)
Fort Myers (RSW)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN1688
06:10
Baltimore (BWI)

12:20
Denver (DEN)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 8:10, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN1688
14:35
Houston Hobby (HOU)

18:35
Denver (DEN)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Denver (DEN)
  • Baltimore (BWI) - Las Vegas Harry Reid (LAS)
  • Denver (DEN) - Pittsburgh (PIT)
  • El Paso (ELP) - Austin (AUS)
  • Honolulu (HNL) - Kahului (OGG)
  • Houston Hobby (HOU) - Denver (DEN)
  • Houston Hobby (HOU) - Saint Louis (STL)
  • Indianapolis (IND) - Fort Myers (RSW)
  • Las Vegas Harry Reid (LAS) - Denver (DEN)
  • Nashville (BNA) - Greenville/Spartanburg (GSP)
  • Saint Louis (STL) - Denver (DEN)
  • Tulsa (TUL) - Phoenix Sky Harbor (PHX)
All Southwest Airlines flights
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