Southwest Airlines flight WN 678: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Sat 05:15 Sacramento (SMF) B 10:30 Austin (AUS) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Valid until 2026-01-03
Mon,Tue,Fri,Sun 06:00 Sacramento (SMF) B 11:20 Austin (AUS) WN 678 Non-stop Boeing 737-800 (73H) 3:20 Valid until 2026-01-04
Sun 06:10 Sacramento (SMF) B 07:35 Portland (PDX) WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-06-07 through 2026-08-02
Wed 07:55 John Glenn Columbus (CMH) 10:10 Tampa (TPA) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-08-05 through 2026-09-30
Mon,Thu,Fri 10:10 Kansas City (MCI) 11:45 Nashville (BNA) WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-03-05 through 2026-04-06
Mon 10:30 Sacramento (SMF) B 15:45 Austin (AUS) WN 678 Non-stop Boeing 737-800 (73H) 3:15 Operates only on 2026-01-05
Sat 11:00 Las Vegas Harry Reid (LAS) 1 12:10 Santa Ana (SNA) WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-01-10 through 2026-02-07
Sat 12:05 Kansas City (MCI) 16:05 Fort Lauderdale (FLL) 1 WN 678 Non-stop Boeing 737-800 (73H) 3:00 Effective 2026-08-08 through 2026-09-26
Mon,Thu,Fri 12:20 Nashville (BNA) 15:25 San Francisco (SFO) 2 WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 5:05 Effective 2026-03-05 through 2026-04-06
Sat 12:40 Boise (BOI) 13:55 San Diego (SAN) 1 WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-14 through 2026-02-28
Sun 13:10 Nashville (BNA) 16:10 San Francisco (SFO) 2 WN 678 Non-stop Boeing 737-800 (73H) 5:00 Effective 2026-03-08 through 2026-04-05
Sun 15:00 Baltimore (BWI) 16:00 Norfolk (ORF) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 1:00 Effective 2026-08-09 through 2026-09-27
Mon,Thu,Fri 15:30 Grand Rapids (GRR) 17:15 Baltimore (BWI) WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-08-06 through 2026-09-28
Sat 15:50 Nashville (BNA) 18:45 Sarasota/Bradenton (SRQ) WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-06-06 through 2026-08-01
Sun 16:20 Tampa (TPA) 18:30 Denver (DEN) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Effective 2026-04-12 through 2026-05-17
Sun 16:20 Tampa (TPA) 18:30 Denver (DEN) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Operates only on 2026-05-31
Mon,Thu,Fri 16:25 Boise (BOI) 17:35 San Diego (SAN) 1 WN 678 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 16:25 Boise (BOI) 17:35 San Diego (SAN) 1 WN 678 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-02-20 through 2026-03-01
Thu,Fri,Sun 16:30 Boise (BOI) 17:45 San Diego (SAN) 1 WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-11 through 2026-01-16
Mon,Sun 16:30 Boise (BOI) 17:45 San Diego (SAN) 1 WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 16:30 Boise (BOI) 17:45 San Diego (SAN) 1 WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-01 through 2026-02-06
Mon,Sun 16:30 Boise (BOI) 17:45 San Diego (SAN) 1 WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 16:30 Boise (BOI) 17:45 San Diego (SAN) 1 WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-17 through 2026-02-23
Mon 16:30 Boise (BOI) 17:45 San Diego (SAN) 1 WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Operates only on 2026-03-02
Tue,Wed 17:05 Tampa (TPA) 19:10 Denver (DEN) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective 2026-04-07 through 2026-06-03
Sat 17:05 Tampa (TPA) 19:10 Denver (DEN) WN 678 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-04-11 through 2026-05-30
Tue 17:05 Los Angeles (LAX) 1 18:15 San Jose (SJC) B WN 678 Non-stop Boeing 737-800 (73H) 1:10 Effective 2026-08-04 through 2026-09-29
Mon,Thu,Fri 17:45 Tampa (TPA) 19:50 Denver (DEN) WN 678 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-04-09 through 2026-06-01
Sun 17:45 Tampa (TPA) 19:50 Denver (DEN) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Operates only on 2026-05-24
Tue,Wed 18:05 Oakland (OAK) 2 19:15 Burbank (BUR) WN 678 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-06-09 through 2026-07-29
Mon-Fri 18:40 Ronald Reagan Washington (DCA) 1 19:50 Nashville (BNA) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 18:40 Ronald Reagan Washington (DCA) 1 19:50 Nashville (BNA) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-01-18 through 2026-01-23
Mon-Fri 18:40 Ronald Reagan Washington (DCA) 1 19:50 Nashville (BNA) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 18:40 Ronald Reagan Washington (DCA) 1 19:50 Nashville (BNA) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-02-08 through 2026-02-11
Tue,Wed 18:40 Ronald Reagan Washington (DCA) 1 19:50 Nashville (BNA) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-02-18 through 2026-03-04
Mon,Thu,Fri 19:40 Nashville (BNA) 22:35 Sarasota/Bradenton (SRQ) WN 678 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2026-06-04 through 2026-08-03
Non-Direct Flights:
Mon,Thu,Fri 10:10 Kansas City (MCI) 15:25 San Francisco (SFO) 2 WN 678 1-stop Boeing 737-700 (Scimitar Winglets) 7:15 Effective 2026-03-05 through 2026-04-06

This flight number is listed as serving the following routes:

Baltimore (BWI) - Norfolk (ORF)
Boise (BOI) - San Diego (SAN)
Grand Rapids (GRR) - Baltimore (BWI)
John Glenn Columbus (CMH) - Tampa (TPA)
Kansas City (MCI) - Fort Lauderdale (FLL)
Kansas City (MCI) - Nashville (BNA)
Kansas City (MCI) - San Francisco (SFO)
Las Vegas Harry Reid (LAS) - Santa Ana (SNA)
Los Angeles (LAX) - San Jose (SJC)
Nashville (BNA) - San Francisco (SFO)
Nashville (BNA) - Sarasota/Bradenton (SRQ)
Oakland (OAK) - Burbank (BUR)
Ronald Reagan Washington (DCA) - Nashville (BNA)
Sacramento (SMF) - Austin (AUS)
Sacramento (SMF) - Portland (PDX)
Tampa (TPA) - Denver (DEN)

All Southwest Airlines flights

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Southwest Airlines flight WN 678: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN678

05:15

Sacramento (SMF) B

10:30

Austin (AUS)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

06:00

Sacramento (SMF) B

11:20

Austin (AUS)

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN678

06:10

Sacramento (SMF) B

07:35

Portland (PDX)

Effective 2026-06-07 through 2026-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN678

07:55

John Glenn Columbus (CMH)

10:10

Tampa (TPA)

Effective 2026-08-05 through 2026-09-30

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

10:10

Kansas City (MCI)

11:45

Nashville (BNA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN678

10:30

Sacramento (SMF) B

15:45

Austin (AUS)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN678

11:00

Las Vegas Harry Reid (LAS) 1

12:10

Santa Ana (SNA)

Effective 2026-01-10 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN678

12:05

Kansas City (MCI)

16:05

Fort Lauderdale (FLL) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN678

12:20

Nashville (BNA)

15:25

San Francisco (SFO) 2

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 5:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN678

12:40

Boise (BOI)

13:55

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN678

13:10

Nashville (BNA)

16:10

San Francisco (SFO) 2

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN678

15:00

Baltimore (BWI)

16:00

Norfolk (ORF)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

15:30

Grand Rapids (GRR)

17:15

Baltimore (BWI)

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 WN678

15:50

Nashville (BNA)

18:45

Sarasota/Bradenton (SRQ)

Effective 2026-06-06 through 2026-08-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN678

16:20

Tampa (TPA)

18:30

Denver (DEN)

Effective 2026-04-12 through 2026-05-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

16:20

Tampa (TPA)

18:30

Denver (DEN)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

16:25

Boise (BOI)

17:35

San Diego (SAN) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN678

16:25

Boise (BOI)

17:35

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN678

16:30

Boise (BOI)

17:45

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN678

16:30

Boise (BOI)

17:45

San Diego (SAN) 1

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN678

16:30

Boise (BOI)

17:45

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN678

16:30

Boise (BOI)

17:45

San Diego (SAN) 1

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN678

16:30

Boise (BOI)

17:45

San Diego (SAN) 1

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

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN678

16:30

Boise (BOI)

17:45

San Diego (SAN) 1

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN678

17:05

Tampa (TPA)

19:10

Denver (DEN)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

17:05

Tampa (TPA)

19:10

Denver (DEN)

Effective 2026-04-11 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN678

17:05

Los Angeles (LAX) 1

18:15

San Jose (SJC) B

Effective 2026-08-04 through 2026-09-29

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN678

17:45

Tampa (TPA)

19:50

Denver (DEN)

Effective 2026-04-09 through 2026-06-01

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN678

17:45

Tampa (TPA)

19:50

Denver (DEN)

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

18:05

Oakland (OAK) 2

19:15

Burbank (BUR)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN678

18:40

Ronald Reagan Washington (DCA) 1

19:50

Nashville (BNA)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

18:40

Ronald Reagan Washington (DCA) 1

19:50

Nashville (BNA)

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

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

18:40

Ronald Reagan Washington (DCA) 1

19:50

Nashville (BNA)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

18:40

Ronald Reagan Washington (DCA) 1

19:50

Nashville (BNA)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

18:40

Ronald Reagan Washington (DCA) 1

19:50

Nashville (BNA)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN678

19:40

Nashville (BNA)

22:35

Sarasota/Bradenton (SRQ)

Effective 2026-06-04 through 2026-08-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Southwest Airlines WN678

10:10

Kansas City (MCI)

15:25

San Francisco (SFO) 2

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 7:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

This flight number is listed as serving the following routes:

Baltimore (BWI) - Norfolk (ORF)
Boise (BOI) - San Diego (SAN)
Grand Rapids (GRR) - Baltimore (BWI)
John Glenn Columbus (CMH) - Tampa (TPA)
Kansas City (MCI) - Fort Lauderdale (FLL)
Kansas City (MCI) - Nashville (BNA)
Kansas City (MCI) - San Francisco (SFO)
Las Vegas Harry Reid (LAS) - Santa Ana (SNA)
Los Angeles (LAX) - San Jose (SJC)
Nashville (BNA) - San Francisco (SFO)
Nashville (BNA) - Sarasota/Bradenton (SRQ)
Oakland (OAK) - Burbank (BUR)
Ronald Reagan Washington (DCA) - Nashville (BNA)
Sacramento (SMF) - Austin (AUS)
Sacramento (SMF) - Portland (PDX)
Tampa (TPA) - Denver (DEN)

All Southwest Airlines flights

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