Southwest Airlines flight WN 1678: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Sat 05:25 Detroit (DTW) E 06:55 Denver (DEN) WN 1678 Non-stop Boeing 737-800 (73H) 3:30 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 07:25 Detroit (DTW) E 08:50 Denver (DEN) WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 07:25 Detroit (DTW) E 08:50 Denver (DEN) WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2026-02-20 through 2026-03-01
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
Mon,Thu,Fri 08:20 Burbank (BUR) 14:10 Chicago Midway (MDW) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2026-08-06 through 2026-09-28
Tue,Wed 10:50 Nashville (BNA) 14:00 West Palm Beach (PBI) WN 1678 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-06-09 through 2026-07-29
Thu,Fri,Sun 11:20 Oakland (OAK) 2 12:50 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-01-11 through 2026-01-16
Mon,Sun 11:20 Oakland (OAK) 2 12:50 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 11:20 Oakland (OAK) 2 12:50 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-01 through 2026-02-06
Mon,Sun 11:20 Oakland (OAK) 2 12:50 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 11:20 Oakland (OAK) 2 12:50 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-17 through 2026-02-23
Mon 11:20 Oakland (OAK) 2 12:50 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Operates only on 2026-03-02
Tue,Wed 12:00 Ronald Reagan Washington (DCA) 1 13:15 Saint Louis (STL) 2 WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-08-04 through 2026-09-30
Sat 12:30 Ronald Reagan Washington (DCA) 1 13:40 Saint Louis (STL) 2 WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-08-08 through 2026-09-26
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 Valid until 2026-01-04
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 Valid until 2026-01-03
Sun 15:20 Chicago Midway (MDW) 17:40 Pittsburgh (PIT) WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-08-09 through 2026-09-27
Tue,Wed 18:15 Chicago Midway (MDW) 20:30 Louisville (SDF) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-03-10 through 2026-04-01
Mon-Fri 18:40 Oakland (OAK) 2 20:10 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 18:40 Oakland (OAK) 2 20:10 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-01-18 through 2026-01-23
Mon-Fri 18:40 Oakland (OAK) 2 20:10 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 18:40 Oakland (OAK) 2 20:10 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-08 through 2026-02-11
Tue,Wed 18:40 Oakland (OAK) 2 20:10 Santa Ana (SNA) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-18 through 2026-03-04
Sun 18:55 Chicago Midway (MDW) 21:10 Louisville (SDF) WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2026-03-08 through 2026-04-05
Sat 19:15 Chicago Midway (MDW) 21:30 Louisville (SDF) WN 1678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-03-07 through 2026-04-04
Mon,Thu,Fri 19:40 Chicago Midway (MDW) 21:55 Louisville (SDF) WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2026-03-05 through 2026-04-06
Daily 20:35 Honolulu (HNL) 2 21:25 Kona (KOA) WN 1678 Non-stop Boeing 737 MAX 8 (7M8) 0:50 Effective 2026-04-07 through 2026-06-03

This flight number is listed as serving the following routes:

Burbank (BUR) - Chicago Midway (MDW)
Chicago Midway (MDW) - Louisville (SDF)
Chicago Midway (MDW) - Pittsburgh (PIT)
Detroit (DTW) - Denver (DEN)
Honolulu (HNL) - Kona (KOA)
Las Vegas Harry Reid (LAS) - Houston Hobby (HOU)
Nashville (BNA) - West Palm Beach (PBI)
Oakland (OAK) - Santa Ana (SNA)
Ronald Reagan Washington (DCA) - Saint Louis (STL)
Saint Louis (STL) - Denver (DEN)

All Southwest Airlines flights

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Southwest Airlines flight WN 1678: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN1678

05:25

Detroit (DTW) E

06:55

Denver (DEN)

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1678

07:25

Detroit (DTW) E

08:50

Denver (DEN)

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1678

07:25

Detroit (DTW) E

08:50

Denver (DEN)

Effective 2026-02-20 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

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)

Direct Flights:

Southwest Airlines WN1678

08:20

Burbank (BUR)

14:10

Chicago Midway (MDW)

Effective 2026-08-06 through 2026-09-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

10:50

Nashville (BNA)

14:00

West Palm Beach (PBI)

Effective 2026-06-09 through 2026-07-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN1678

11:20

Oakland (OAK) 2

12:50

Santa Ana (SNA)

Effective 2026-01-11 through 2026-01-16

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

11:20

Oakland (OAK) 2

12:50

Santa Ana (SNA)

Effective 2026-01-19 through 2026-01-25

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

11:20

Oakland (OAK) 2

12:50

Santa Ana (SNA)

Effective 2026-02-01 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

11:20

Oakland (OAK) 2

12:50

Santa Ana (SNA)

Effective 2026-02-09 through 2026-02-15

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

11:20

Oakland (OAK) 2

12:50

Santa Ana (SNA)

Effective 2026-02-17 through 2026-02-23

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

11:20

Oakland (OAK) 2

12:50

Santa Ana (SNA)

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

12:00

Ronald Reagan Washington (DCA) 1

13:15

Saint Louis (STL) 2

Effective 2026-08-04 through 2026-09-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

12:30

Ronald Reagan Washington (DCA) 1

13:40

Saint Louis (STL) 2

Effective 2026-08-08 through 2026-09-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

14:50

Las Vegas Harry Reid (LAS) 1

19:45

Houston Hobby (HOU)

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1678

15:05

Las Vegas Harry Reid (LAS) 1

20:00

Houston Hobby (HOU)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1678

15:20

Chicago Midway (MDW)

17:40

Pittsburgh (PIT)

Effective 2026-08-09 through 2026-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1678

18:15

Chicago Midway (MDW)

20:30

Louisville (SDF)

Effective 2026-03-10 through 2026-04-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

18:40

Oakland (OAK) 2

20:10

Santa Ana (SNA)

Effective 2026-01-06 through 2026-01-14

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

18:40

Oakland (OAK) 2

20:10

Santa Ana (SNA)

Effective 2026-01-18 through 2026-01-23

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

18:40

Oakland (OAK) 2

20:10

Santa Ana (SNA)

Effective 2026-01-26 through 2026-02-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

18:40

Oakland (OAK) 2

20:10

Santa Ana (SNA)

Effective 2026-02-08 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

18:40

Oakland (OAK) 2

20:10

Santa Ana (SNA)

Effective 2026-02-18 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

18:55

Chicago Midway (MDW)

21:10

Louisville (SDF)

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1678

19:15

Chicago Midway (MDW)

21:30

Louisville (SDF)

Effective 2026-03-07 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN1678

19:40

Chicago Midway (MDW)

21:55

Louisville (SDF)

Effective 2026-03-05 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN1678

20:35

Honolulu (HNL) 2

21:25

Kona (KOA)

Effective 2026-04-07 through 2026-06-03

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 0:50, non-stop
Boeing 737 MAX 8 (7M8)

This flight number is listed as serving the following routes:

Burbank (BUR) - Chicago Midway (MDW)
Chicago Midway (MDW) - Louisville (SDF)
Chicago Midway (MDW) - Pittsburgh (PIT)
Detroit (DTW) - Denver (DEN)
Honolulu (HNL) - Kona (KOA)
Las Vegas Harry Reid (LAS) - Houston Hobby (HOU)
Nashville (BNA) - West Palm Beach (PBI)
Oakland (OAK) - Santa Ana (SNA)
Ronald Reagan Washington (DCA) - Saint Louis (STL)
Saint Louis (STL) - Denver (DEN)

All Southwest Airlines flights

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