Southwest Airlines flight WN 1666: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 05:05 Tampa (TPA) 07:25 Pittsburgh (PIT)
WN 1666 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-06-07 through 2025-08-02
Sun 06:30 Tampa (TPA) 08:50 Pittsburgh (PIT)
WN 1666 Non-stop Boeing 737-700 (73W) 2:20 Effective 2025-06-08 through 2025-08-03
Tue,Wed 06:50 Tampa (TPA) 09:10 Pittsburgh (PIT)
WN 1666 Non-stop Boeing 737-700 (73W) 2:20 Effective 2025-06-10 through 2025-07-30
Tue,Wed 07:50 Burbank (BUR) 09:25 Phoenix Sky Harbor (PHX) 4
WN 1666 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-10-07 through 2025-10-29
Sun 09:10 Burbank (BUR) 10:45 Phoenix Sky Harbor (PHX) 4
WN 1666 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-10-05 through 2025-10-26
Sun 10:00 Phoenix Sky Harbor (PHX) 4 14:30 Kansas City (MCI)
WN 1666 Non-stop Boeing 737-800 (73H) 2:30 Valid until 2025-05-18
Sun 10:00 Phoenix Sky Harbor (PHX) 4 14:30 Kansas City (MCI)
WN 1666 Non-stop Boeing 737-800 (73H) 2:30 Operates only on 2025-06-01
Fri 10:25 Los Angeles (LAX) 1 15:35 Love Field, Dallas (DAL) 1
WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Operates only on 2025-07-04
Sun 11:05 Phoenix Sky Harbor (PHX) 4 15:35 Kansas City (MCI)
WN 1666 Non-stop Boeing 737-800 (73H) 2:30 Operates only on 2025-05-25
Sat 11:10 Tampa (TPA) 12:40 Saint Louis (STL) 2
WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Valid until 2025-05-31
Sat 11:35 Burbank (BUR) 13:15 Phoenix Sky Harbor (PHX) 4
WN 1666 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2025-10-04 through 2025-11-01
Thu 12:00 Houston Hobby (HOU) 15:55 Ronald Reagan Washington (DCA)
WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Operates only on 2025-11-27
Mon,Thu,Fri 12:25 Burbank (BUR) 14:00 Phoenix Sky Harbor (PHX) 4
WN 1666 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-10-02 through 2025-10-31
Sat 13:45 Baltimore (BWI) 15:50 Denver (DEN)
WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective 2025-11-22 through 2025-11-29
Sat 13:45 Baltimore (BWI) 15:50 Denver (DEN)
WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Effective 2025-12-20 through 2026-01-03
Mon-Wed 15:10 Baltimore (BWI) 17:15 Denver (DEN)
WN 1666 Non-stop Boeing 737-800 (73H) 4:05 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 15:10 Baltimore (BWI) 17:15 Denver (DEN)
WN 1666 Non-stop Boeing 737-800 (73H) 4:05 Effective 2025-12-19 through 2026-01-04
Sat 17:00 Denver (DEN) 20:05 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2025-11-08 through 2025-11-15
Sat 17:00 Denver (DEN) 20:05 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2025-12-06 through 2025-12-13
Tue,Wed 17:20 Birmingham (BHM) 19:20 Love Field, Dallas (DAL) 1
WN 1666 Non-stop Boeing 737-700 (73W) 2:00 Valid until 2025-06-04
Tue,Wed 18:45 Denver (DEN) 21:50 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:05 Effective 2025-11-04 through 2025-11-12
Mon-Thu 18:45 Denver (DEN) 21:50 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:05 Effective 2025-11-17 through 2025-11-20
Mon-Fri 18:45 Denver (DEN) 21:50 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:05 Effective 2025-12-02 through 2025-12-11
Mon-Wed 18:45 Denver (DEN) 21:50 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:05 Effective 2025-12-15 through 2025-12-17
Wed,Thu 18:45 Denver (DEN) 21:50 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:05 Effective 2025-12-24 through 2026-01-01
Mon,Thu,Fri,Sun 20:20 Denver (DEN) 23:30 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:10 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 20:20 Denver (DEN) 23:30 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:10 Effective 2025-11-21 through 2025-11-28
Fri,Sun 20:20 Denver (DEN) 23:30 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:10 Effective 2025-12-07 through 2025-12-14
Thu 20:20 Denver (DEN) 23:30 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:10 Operates only on 2025-12-18
Mon 20:20 Denver (DEN) 23:30 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:10 Operates only on 2026-01-05
Sun 21:25 Denver (DEN) 00:35 San Antonio (SAT) A
WN 1666 Non-stop Boeing 737-800 (73H) 2:10 Operates only on 2025-11-30
The flight arrives 1 day after departure.
Daily 23:00 Seattle-Tacoma (SEA) 05:05 Midway, Chicago (MDW)
WN 1666 Non-stop Boeing 737-800 (73H) 4:05 Effective 2025-08-05 through 2025-08-30
The flight arrives 1 day after departure.
Daily 23:00 Seattle-Tacoma (SEA) 05:05 Midway, Chicago (MDW)
WN 1666 Non-stop Boeing 737-800 (73H) 4:05 Effective 2025-09-01 through 2025-10-01
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 1666: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN1666
05:05
Tampa (TPA)

07:25
Pittsburgh (PIT)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
06:30
Tampa (TPA)

08:50
Pittsburgh (PIT)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1666
06:50
Tampa (TPA)

09:10
Pittsburgh (PIT)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1666
07:50
Burbank (BUR)

09:25
Phoenix Sky Harbor (PHX) 4
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1666
09:10
Burbank (BUR)

10:45
Phoenix Sky Harbor (PHX) 4
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1666
10:00
Phoenix Sky Harbor (PHX) 4

14:30
Kansas City (MCI)
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
10:00
Phoenix Sky Harbor (PHX) 4

14:30
Kansas City (MCI)
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
10:25
Los Angeles (LAX) 1

15:35
Love Field, Dallas (DAL) 1
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1666
11:05
Phoenix Sky Harbor (PHX) 4

15:35
Kansas City (MCI)
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
11:10
Tampa (TPA)

12:40
Saint Louis (STL) 2
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1666
11:35
Burbank (BUR)

13:15
Phoenix Sky Harbor (PHX) 4
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1666
12:00
Houston Hobby (HOU)

15:55
Ronald Reagan Washington (DCA)
Operates only on 2025-11-27
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1666
12:25
Burbank (BUR)

14:00
Phoenix Sky Harbor (PHX) 4
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN1666
13:45
Baltimore (BWI)

15:50
Denver (DEN)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1666
13:45
Baltimore (BWI)

15:50
Denver (DEN)
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1666
15:10
Baltimore (BWI)

17:15
Denver (DEN)
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
15:10
Baltimore (BWI)

17:15
Denver (DEN)
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
17:00
Denver (DEN)

20:05
San Antonio (SAT) A
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1666
17:00
Denver (DEN)

20:05
San Antonio (SAT) A
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1666
17:20
Birmingham (BHM)

19:20
Love Field, Dallas (DAL) 1
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1666
18:45
Denver (DEN)

21:50
San Antonio (SAT) A
Effective 2025-11-04 through 2025-11-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
18:45
Denver (DEN)

21:50
San Antonio (SAT) A
Effective 2025-11-17 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
18:45
Denver (DEN)

21:50
San Antonio (SAT) A
Effective 2025-12-02 through 2025-12-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
18:45
Denver (DEN)

21:50
San Antonio (SAT) A
Effective 2025-12-15 through 2025-12-17
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
18:45
Denver (DEN)

21:50
San Antonio (SAT) A
Effective 2025-12-24 through 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
20:20
Denver (DEN)

23:30
San Antonio (SAT) A
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
20:20
Denver (DEN)

23:30
San Antonio (SAT) A
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
20:20
Denver (DEN)

23:30
San Antonio (SAT) A
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
20:20
Denver (DEN)

23:30
San Antonio (SAT) A
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
20:20
Denver (DEN)

23:30
San Antonio (SAT) A
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1666
21:25
Denver (DEN)

00:35(+1)
San Antonio (SAT) A
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Southwest Airlines WN1666
23:00
Seattle-Tacoma (SEA)

05:05(+1)
Midway, Chicago (MDW)
Effective 2025-08-05 through 2025-08-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Southwest Airlines WN1666
23:00
Seattle-Tacoma (SEA)

05:05(+1)
Midway, Chicago (MDW)
Effective 2025-09-01 through 2025-10-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:05, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Denver (DEN)
  • Birmingham (BHM) - Love Field, Dallas (DAL)
  • Burbank (BUR) - Phoenix Sky Harbor (PHX)
  • Denver (DEN) - San Antonio (SAT)
  • Houston Hobby (HOU) - Ronald Reagan Washington (DCA)
  • Los Angeles (LAX) - Love Field, Dallas (DAL)
  • Phoenix Sky Harbor (PHX) - Kansas City (MCI)
  • Seattle-Tacoma (SEA) - Midway, Chicago (MDW)
  • Tampa (TPA) - Pittsburgh (PIT)
  • Tampa (TPA) - Saint Louis (STL)
All Southwest Airlines flights
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