Southwest Airlines flight WN 1678: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 05:35 Saint Louis (STL) 2 07:00 Denver (DEN)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2025-11-04 through 2025-11-12
Mon-Thu 05:35 Saint Louis (STL) 2 07:00 Denver (DEN)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2025-11-17 through 2025-11-20
Mon-Fri 05:35 Saint Louis (STL) 2 07:00 Denver (DEN)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2025-12-02 through 2025-12-11
Mon-Wed 05:35 Saint Louis (STL) 2 07:00 Denver (DEN)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2025-12-15 through 2025-12-17
Wed,Thu 05:35 Saint Louis (STL) 2 07:00 Denver (DEN)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2025-12-24 through 2026-01-01
Sun 07:20 Saint Louis (STL) 2 08:45 Denver (DEN)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Operates only on 2025-11-30
Mon,Thu,Fri,Sun 07:40 Saint Louis (STL) 2 09:05 Denver (DEN)
WN 1678 Non-stop Boeing 737-800 (73H) 2:25 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 07:40 Saint Louis (STL) 2 09:05 Denver (DEN)
WN 1678 Non-stop Boeing 737-800 (73H) 2:25 Effective 2025-11-21 through 2025-11-28
Fri,Sun 07:40 Saint Louis (STL) 2 09:05 Denver (DEN)
WN 1678 Non-stop Boeing 737-800 (73H) 2:25 Effective 2025-12-07 through 2025-12-14
Thu 07:40 Saint Louis (STL) 2 09:05 Denver (DEN)
WN 1678 Non-stop Boeing 737-800 (73H) 2:25 Operates only on 2025-12-18
Mon 07:40 Saint Louis (STL) 2 09:05 Denver (DEN)
WN 1678 Non-stop Boeing 737-800 (73H) 2:25 Operates only on 2026-01-05
Sun 07:55 Las Vegas Harry Reid (LAS) 1 12:30 San Antonio (SAT) A
WN 1678 Non-stop Boeing 737-700 (73W) 2:35 Operates only on 2025-05-25
Sun 07:55 Baltimore (BWI) 09:15 John Glenn Columbus (CMH)
WN 1678 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-08-10 through 2025-08-24
Sun 07:55 Baltimore (BWI) 09:15 John Glenn Columbus (CMH)
WN 1678 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-09-07 through 2025-09-28
Sun 08:55 Baltimore (BWI) 10:25 John Glenn Columbus (CMH)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2025-08-31
Sat 09:00 Baltimore (BWI) 10:30 John Glenn Columbus (CMH)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-08-09 through 2025-09-27
Mon,Thu,Fri 09:30 Baltimore (BWI) 10:55 John Glenn Columbus (CMH)
WN 1678 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-08-07 through 2025-09-29
Fri 11:15 Charleston (CHS) 12:25 Saint Louis (STL) 2
WN 1678 Non-stop Boeing 737-800 (73H) 2:10 Operates only on 2025-07-04
Sat 11:55 Charleston (CHS) 13:10 Saint Louis (STL) 2
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-06-07 through 2025-08-02
Sun 12:20 Baltimore (BWI) 14:00 Charleston (CHS)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2025-06-08 through 2025-08-03
Sun 14:50 Charleston (CHS) 16:00 Saint Louis (STL) 2
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-06-08 through 2025-08-03
Mon-Wed 14:50 Las Vegas Harry Reid (LAS) 1 19:45 Houston Hobby (HOU)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 14:50 Las Vegas Harry Reid (LAS) 1 19:45 Houston Hobby (HOU)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2025-12-19 through 2026-01-04
Tue,Wed 15:05 Baltimore (BWI) 16:30 John Glenn Columbus (CMH)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-08-05 through 2025-10-01
Sat 15:05 Las Vegas Harry Reid (LAS) 1 20:00 Houston Hobby (HOU)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2025-11-22 through 2025-11-29
Sat 15:05 Las Vegas Harry Reid (LAS) 1 20:00 Houston Hobby (HOU)
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2025-12-20 through 2026-01-03
Thu 15:15 Baltimore (BWI) 17:15 Atlanta (ATL) N
WN 1678 Non-stop Boeing 737-800 (73H) 2:00 Operates only on 2025-11-27
Sun 16:55 Portland (PDX) 18:40 Oakland (OAK) 2
WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 17:00 Charleston (CHS) 18:10 Saint Louis (STL) 2
WN 1678 Non-stop Boeing 737-700 (73W) 2:10 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 17:00 Charleston (CHS) 18:10 Saint Louis (STL) 2
WN 1678 Non-stop Boeing 737-700 (73W) 2:10 Effective 2025-07-07 through 2025-08-04
Sat 17:15 Portland (PDX) 19:00 Oakland (OAK) 2
WN 1678 Non-stop Boeing 737-800 (73H) 1:45 Effective 2025-10-04 through 2025-11-01
Mon,Thu,Fri 18:20 Portland (PDX) 20:05 Oakland (OAK) 2
WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2025-10-02 through 2025-10-31
Sun 19:20 Oakland (OAK) 2 20:45 Los Angeles (LAX) 1
WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-10-05 through 2025-10-26
Tue,Wed 19:25 Oakland (OAK) 2 20:50 Los Angeles (LAX) 1
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-10-07 through 2025-10-29
Tue,Wed 19:45 Charleston (CHS) 20:50 Saint Louis (STL) 2
WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2025-06-10 through 2025-07-30
Mon,Thu,Fri 20:45 Oakland (OAK) 2 22:10 Los Angeles (LAX) 1
WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-10-02 through 2025-10-31
Non-Direct Flights:
Sun 12:20 Baltimore (BWI) 16:00 Saint Louis (STL) 2
WN 1678 1-stop Boeing 737 MAX 8 (7M8) 4:40 Effective 2025-06-08 through 2025-08-03
Sun 16:55 Portland (PDX) 20:45 Los Angeles (LAX) 1
WN 1678 1-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 18:20 Portland (PDX) 22:10 Los Angeles (LAX) 1
WN 1678 1-stop Boeing 737-700 (Scimitar Winglets) 3:50 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 1678: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN1678
05:35
Saint Louis (STL) 2

07:00
Denver (DEN)
Effective 2025-11-04 through 2025-11-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
05:35
Saint Louis (STL) 2

07:00
Denver (DEN)
Effective 2025-11-17 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
05:35
Saint Louis (STL) 2

07:00
Denver (DEN)
Effective 2025-12-02 through 2025-12-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
05:35
Saint Louis (STL) 2

07:00
Denver (DEN)
Effective 2025-12-15 through 2025-12-17
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
05:35
Saint Louis (STL) 2

07:00
Denver (DEN)
Effective 2025-12-24 through 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
07:20
Saint Louis (STL) 2

08:45
Denver (DEN)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
07:40
Saint Louis (STL) 2

09:05
Denver (DEN)
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1678
07:40
Saint Louis (STL) 2

09:05
Denver (DEN)
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1678
07:40
Saint Louis (STL) 2

09:05
Denver (DEN)
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1678
07:40
Saint Louis (STL) 2

09:05
Denver (DEN)
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1678
07:40
Saint Louis (STL) 2

09:05
Denver (DEN)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1678
07:55
Las Vegas Harry Reid (LAS) 1

12:30
San Antonio (SAT) A
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1678
07:55
Baltimore (BWI)

09:15
John Glenn Columbus (CMH)
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1678
07:55
Baltimore (BWI)

09:15
John Glenn Columbus (CMH)
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1678
08:55
Baltimore (BWI)

10:25
John Glenn Columbus (CMH)
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
09:00
Baltimore (BWI)

10:30
John Glenn Columbus (CMH)
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
09:30
Baltimore (BWI)

10:55
John Glenn Columbus (CMH)
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1678
11:15
Charleston (CHS)

12:25
Saint Louis (STL) 2
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1678
11:55
Charleston (CHS)

13:10
Saint Louis (STL) 2
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
12:20
Baltimore (BWI)

14:00
Charleston (CHS)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
14:50
Charleston (CHS)

16:00
Saint Louis (STL) 2
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
14:50
Las Vegas Harry Reid (LAS) 1

19:45
Houston Hobby (HOU)
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
14:50
Las Vegas Harry Reid (LAS) 1

19:45
Houston Hobby (HOU)
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
15:05
Baltimore (BWI)

16:30
John Glenn Columbus (CMH)
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
15:05
Las Vegas Harry Reid (LAS) 1

20:00
Houston Hobby (HOU)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
15:05
Las Vegas Harry Reid (LAS) 1

20:00
Houston Hobby (HOU)
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
15:15
Baltimore (BWI)

17:15
Atlanta (ATL) N
Operates only on 2025-11-27
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1678
16:55
Portland (PDX)

18:40
Oakland (OAK) 2
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1678
17:00
Charleston (CHS)

18:10
Saint Louis (STL) 2
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1678
17:00
Charleston (CHS)

18:10
Saint Louis (STL) 2
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1678
17:15
Portland (PDX)

19:00
Oakland (OAK) 2
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1678
18:20
Portland (PDX)

20:05
Oakland (OAK) 2
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1678
19:20
Oakland (OAK) 2

20:45
Los Angeles (LAX) 1
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1678
19:25
Oakland (OAK) 2

20:50
Los Angeles (LAX) 1
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
19:45
Charleston (CHS)

20:50
Saint Louis (STL) 2
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
20:45
Oakland (OAK) 2

22:10
Los Angeles (LAX) 1
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN1678
12:20
Baltimore (BWI)

16:00
Saint Louis (STL) 2
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:40, 1-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1678
16:55
Portland (PDX)

20:45
Los Angeles (LAX) 1
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:50, 1-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1678
18:20
Portland (PDX)

22:10
Los Angeles (LAX) 1
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:50, 1-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Atlanta (ATL)
  • Baltimore (BWI) - Charleston (CHS)
  • Baltimore (BWI) - John Glenn Columbus (CMH)
  • Baltimore (BWI) - Saint Louis (STL)
  • Charleston (CHS) - Saint Louis (STL)
  • Las Vegas Harry Reid (LAS) - Houston Hobby (HOU)
  • Las Vegas Harry Reid (LAS) - San Antonio (SAT)
  • Oakland (OAK) - Los Angeles (LAX)
  • Portland (PDX) - Los Angeles (LAX)
  • Portland (PDX) - Oakland (OAK)
  • Saint Louis (STL) - Denver (DEN)
All Southwest Airlines flights
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