Southwest Airlines flight WN 3665: Multiple routes

Ad box here 1220564027 I FlightWNum Top Box

FLIGHT SCHEDULE
Direct Flights:
Sun 07:20 Fort Myers (RSW) 09:10 Chicago Midway (MDW) WN 3665 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-06-07 through 2026-08-02
Mon,Thu,Fri 10:55 Salt Lake City (SLC) 11:25 Las Vegas Harry Reid (LAS) 1 WN 3665 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-08-06 through 2026-09-28
Mon 13:35 Orlando (MCO) 15:15 Saint Louis (STL) 2 WN 3665 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2026-01-05
Sun 13:55 Boston Logan (BOS) B 15:35 Chicago Midway (MDW) WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2026-04-12 through 2026-05-17
Sun 13:55 Boston Logan (BOS) B 15:35 Chicago Midway (MDW) WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Operates only on 2026-05-31
Mon,Tue,Fri,Sun 14:10 Orlando (MCO) 15:50 Saint Louis (STL) 2 WN 3665 Non-stop Boeing 737-800 (73H) 2:40 Valid until 2026-01-04
Wed,Thu 14:15 Orlando (MCO) 15:55 Saint Louis (STL) 2 WN 3665 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Valid until 2026-01-01
Sun 14:20 Boston Logan (BOS) B 16:00 Chicago Midway (MDW) WN 3665 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2026-05-24
Sat 14:40 Orlando (MCO) 16:20 Saint Louis (STL) 2 WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Operates only on 2026-01-03
Sat 15:30 Boston Logan (BOS) B 17:15 Chicago Midway (MDW) WN 3665 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-04-11 through 2026-05-30
Sun 16:15 Chicago Midway (MDW) 18:10 Grand Rapids (GRR) WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-04-12 through 2026-05-17
Sun 16:15 Chicago Midway (MDW) 18:10 Grand Rapids (GRR) WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Operates only on 2026-05-31
Sat 17:00 Saint Louis (STL) 2 19:30 San Francisco (SFO) 2 WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 4:30 Operates only on 2026-01-03
Tue,Wed 17:40 New York LaGuardia (LGA) B 19:30 Chicago Midway (MDW) WN 3665 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-06-09 through 2026-07-29
Tue,Wed 18:20 Boston Logan (BOS) B 20:10 Chicago Midway (MDW) WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2026-04-07 through 2026-06-03
Sat 18:25 Ronald Reagan Washington (DCA) 1 20:40 Houston Hobby (HOU) WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 3:15 Effective 2026-06-06 through 2026-08-01
Sun 18:50 Grand Rapids (GRR) 19:40 Denver (DEN) WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2026-04-12 through 2026-05-17
Sun 18:50 Grand Rapids (GRR) 19:40 Denver (DEN) WN 3665 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Operates only on 2026-05-31
Mon,Thu,Fri 18:55 Boston Logan (BOS) B 20:45 Chicago Midway (MDW) WN 3665 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-04-09 through 2026-06-01
Sun 20:45 Salt Lake City (SLC) 21:15 Las Vegas Harry Reid (LAS) 1 WN 3665 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-08-09 through 2026-09-27
Non-Direct Flights:
Sun 13:55 Boston Logan (BOS) B 18:10 Grand Rapids (GRR) WN 3665 1-stop Boeing 737-700 (Scimitar Winglets) 4:15 Effective 2026-04-12 through 2026-05-17
Sun 13:55 Boston Logan (BOS) B 18:10 Grand Rapids (GRR) WN 3665 1-stop Boeing 737-700 (Scimitar Winglets) 4:15 Operates only on 2026-05-31
Sat 14:40 Orlando (MCO) 19:30 San Francisco (SFO) 2 WN 3665 1-stop Boeing 737-700 (Scimitar Winglets) 7:50 Operates only on 2026-01-03
Sun 16:15 Chicago Midway (MDW) 19:40 Denver (DEN) WN 3665 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Effective 2026-04-12 through 2026-05-17
Sun 16:15 Chicago Midway (MDW) 19:40 Denver (DEN) WN 3665 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Operates only on 2026-05-31
Sun 13:55 Boston Logan (BOS) B 19:40 Denver (DEN) WN 3665 2-stop Boeing 737-700 (Scimitar Winglets) 7:45 Effective 2026-04-12 through 2026-05-17
Sun 13:55 Boston Logan (BOS) B 19:40 Denver (DEN) WN 3665 2-stop Boeing 737-700 (Scimitar Winglets) 7:45 Operates only on 2026-05-31

Ad flat here 1377413384 I FlightWNum Lower

Parallax here

This flight number is listed as serving the following routes:

Boston Logan (BOS) - Chicago Midway (MDW)
Boston Logan (BOS) - Denver (DEN)
Boston Logan (BOS) - Grand Rapids (GRR)
Chicago Midway (MDW) - Denver (DEN)
Chicago Midway (MDW) - Grand Rapids (GRR)
Fort Myers (RSW) - Chicago Midway (MDW)
Grand Rapids (GRR) - Denver (DEN)
New York LaGuardia (LGA) - Chicago Midway (MDW)
Orlando (MCO) - Saint Louis (STL)
Orlando (MCO) - San Francisco (SFO)
Ronald Reagan Washington (DCA) - Houston Hobby (HOU)
Saint Louis (STL) - San Francisco (SFO)
Salt Lake City (SLC) - Las Vegas Harry Reid (LAS)

All Southwest Airlines flights

Feedback - Disclaimer - Privacy - new_base.html - DESKTOP - CACHE: False - LANG: en - IS_EU: False

Southwest Airlines flight WN 3665: Multiple routes

Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3665

07:20

Fort Myers (RSW)

09:10

Chicago Midway (MDW)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3665

10:55

Salt Lake City (SLC)

11:25

Las Vegas Harry Reid (LAS) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3665

13:35

Orlando (MCO)

15:15

Saint Louis (STL) 2

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3665

13:55

Boston Logan (BOS) B

15:35

Chicago Midway (MDW)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

13:55

Boston Logan (BOS) B

15:35

Chicago Midway (MDW)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

14:10

Orlando (MCO)

15:50

Saint Louis (STL) 2

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3665

14:15

Orlando (MCO)

15:55

Saint Louis (STL) 2

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3665

14:20

Boston Logan (BOS) B

16:00

Chicago Midway (MDW)

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3665

14:40

Orlando (MCO)

16:20

Saint Louis (STL) 2

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

15:30

Boston Logan (BOS) B

17:15

Chicago Midway (MDW)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3665

16:15

Chicago Midway (MDW)

18:10

Grand Rapids (GRR)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

16:15

Chicago Midway (MDW)

18:10

Grand Rapids (GRR)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

17:00

Saint Louis (STL) 2

19:30

San Francisco (SFO) 2

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

17:40

New York LaGuardia (LGA) B

19:30

Chicago Midway (MDW)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3665

18:20

Boston Logan (BOS) B

20:10

Chicago Midway (MDW)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

18:25

Ronald Reagan Washington (DCA) 1

20:40

Houston Hobby (HOU)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

18:50

Grand Rapids (GRR)

19:40

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

18:50

Grand Rapids (GRR)

19:40

Denver (DEN)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3665

18:55

Boston Logan (BOS) B

20:45

Chicago Midway (MDW)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3665

20:45

Salt Lake City (SLC)

21:15

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Southwest Airlines WN3665

13:55

Boston Logan (BOS) B

18:10

Grand Rapids (GRR)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3665

13:55

Boston Logan (BOS) B

18:10

Grand Rapids (GRR)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3665

14:40

Orlando (MCO)

19:30

San Francisco (SFO) 2

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 7:50, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3665

16:15

Chicago Midway (MDW)

19:40

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3665

16:15

Chicago Midway (MDW)

19:40

Denver (DEN)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3665

13:55

Boston Logan (BOS) B

19:40

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 7:45, 2-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3665

13:55

Boston Logan (BOS) B

19:40

Denver (DEN)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 7:45, 2-stop
Boeing 737-700 (Scimitar Winglets)

Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box

Parallax here

This flight number is listed as serving the following routes:

Boston Logan (BOS) - Chicago Midway (MDW)
Boston Logan (BOS) - Denver (DEN)
Boston Logan (BOS) - Grand Rapids (GRR)
Chicago Midway (MDW) - Denver (DEN)
Chicago Midway (MDW) - Grand Rapids (GRR)
Fort Myers (RSW) - Chicago Midway (MDW)
Grand Rapids (GRR) - Denver (DEN)
New York LaGuardia (LGA) - Chicago Midway (MDW)
Orlando (MCO) - Saint Louis (STL)
Orlando (MCO) - San Francisco (SFO)
Ronald Reagan Washington (DCA) - Houston Hobby (HOU)
Saint Louis (STL) - San Francisco (SFO)
Salt Lake City (SLC) - Las Vegas Harry Reid (LAS)

All Southwest Airlines flights

Feedback - Disclaimer - Privacy - new_base.html - MOBILE

- CACHE: False - LANG: en - IS_EU: False