Southwest Airlines flight WN 3456: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 05:30 San Antonio (SAT) A 06:30 Las Vegas Harry Reid (LAS) 1 WN 3456 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 05:30 San Antonio (SAT) A 06:30 Las Vegas Harry Reid (LAS) 1 WN 3456 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-02-20 through 2026-03-01
Sat 05:40 Reno (RNO) 11:20 Chicago Midway (MDW) WN 3456 Non-stop Boeing 737 MAX 8 (7M8) 3:40 Effective 2026-06-06 through 2026-08-01
Tue,Wed 05:40 Denver (DEN) 09:10 Nashville (BNA) WN 3456 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-06-09 through 2026-07-29
Sat 07:50 Las Vegas Harry Reid (LAS) 1 09:05 San Diego (SAN) 1 WN 3456 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-02-14 through 2026-02-28
Mon-Fri,Sun 08:00 Milwaukee (MKE) 09:20 Saint Louis (STL) 2 WN 3456 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-04-07 through 2026-05-22
Mon-Fri,Sun 08:00 Milwaukee (MKE) 09:20 Saint Louis (STL) 2 WN 3456 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-05-25 through 2026-06-03
Sun 09:00 Milwaukee (MKE) 10:20 Saint Louis (STL) 2 WN 3456 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Operates only on 2026-05-24
Mon,Thu,Fri 09:55 Saint Louis (STL) 2 11:05 Nashville (BNA) WN 3456 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-04-09 through 2026-06-01
Sat 10:55 Saint Louis (STL) 2 12:05 Nashville (BNA) WN 3456 Non-stop Boeing 737-800 (73H) 1:10 Effective 2026-04-11 through 2026-05-30
Sat 11:45 New York LaGuardia (LGA) B 13:40 Saint Louis (STL) 2 WN 3456 Non-stop Boeing 737-800 (73H) 2:55 Valid until 2026-01-03
Sat 12:00 Chicago Midway (MDW) 15:20 Boston Logan (BOS) B WN 3456 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-06-06 through 2026-08-01
Mon,Thu,Fri 12:45 Chicago Midway (MDW) 16:30 Fort Myers (RSW) WN 3456 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-03-05 through 2026-04-06
Sun 12:55 Chicago Midway (MDW) 16:40 Fort Myers (RSW) WN 3456 Non-stop Boeing 737-800 (73H) 2:45 Effective 2026-03-08 through 2026-04-05
Tue,Wed 13:10 Chicago Midway (MDW) 16:55 Fort Myers (RSW) WN 3456 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-03-10 through 2026-04-01
Sat 13:20 Chicago Midway (MDW) 17:05 Fort Myers (RSW) WN 3456 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-03-07 through 2026-04-04
Sat 14:45 Reno (RNO) 16:40 Phoenix Sky Harbor (PHX) 4 WN 3456 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-08-08 through 2026-09-26
Mon,Thu,Fri 16:15 Reno (RNO) 18:10 Phoenix Sky Harbor (PHX) 4 WN 3456 Non-stop Boeing 737-800 (73H) 1:55 Effective 2026-08-06 through 2026-09-28
Sun 17:25 Dallas Love Field (DAL) 1 19:10 Saint Louis (STL) 2 WN 3456 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-06-07 through 2026-08-02
Mon 18:15 Las Vegas Harry Reid (LAS) 1 22:55 Kansas City (MCI) WN 3456 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Operates only on 2026-01-05
Non-Direct Flights:
Sat 05:40 Reno (RNO) 15:20 Boston Logan (BOS) B WN 3456 1-stop Boeing 737 MAX 8 (7M8) 6:40 Effective 2026-06-06 through 2026-08-01
Mon,Thu,Fri 08:00 Milwaukee (MKE) 11:05 Nashville (BNA) WN 3456 1-stop Boeing 737-700 (Scimitar Winglets) 3:05 Effective 2026-04-09 through 2026-06-01

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This flight number is listed as serving the following routes:

Chicago Midway (MDW) - Boston Logan (BOS)
Chicago Midway (MDW) - Fort Myers (RSW)
Dallas Love Field (DAL) - Saint Louis (STL)
Denver (DEN) - Nashville (BNA)
Las Vegas Harry Reid (LAS) - Kansas City (MCI)
Las Vegas Harry Reid (LAS) - San Diego (SAN)
Milwaukee (MKE) - Nashville (BNA)
Milwaukee (MKE) - Saint Louis (STL)
New York LaGuardia (LGA) - Saint Louis (STL)
Reno (RNO) - Boston Logan (BOS)
Reno (RNO) - Chicago Midway (MDW)
Reno (RNO) - Phoenix Sky Harbor (PHX)
Saint Louis (STL) - Nashville (BNA)
San Antonio (SAT) - Las Vegas Harry Reid (LAS)

All Southwest Airlines flights

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Southwest Airlines flight WN 3456: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3456

05:30

San Antonio (SAT) A

06:30

Las Vegas Harry Reid (LAS) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3456

05:30

San Antonio (SAT) A

06:30

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3456

05:40

Reno (RNO)

11:20

Chicago Midway (MDW)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3456

05:40

Denver (DEN)

09:10

Nashville (BNA)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3456

07:50

Las Vegas Harry Reid (LAS) 1

09:05

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3456

08:00

Milwaukee (MKE)

09:20

Saint Louis (STL) 2

Effective 2026-04-07 through 2026-05-22

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3456

08:00

Milwaukee (MKE)

09:20

Saint Louis (STL) 2

Effective 2026-05-25 through 2026-06-03

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3456

09:00

Milwaukee (MKE)

10:20

Saint Louis (STL) 2

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3456

09:55

Saint Louis (STL) 2

11:05

Nashville (BNA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3456

10:55

Saint Louis (STL) 2

12:05

Nashville (BNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3456

11:45

New York LaGuardia (LGA) B

13:40

Saint Louis (STL) 2

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3456

12:00

Chicago Midway (MDW)

15:20

Boston Logan (BOS) B

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3456

12:45

Chicago Midway (MDW)

16:30

Fort Myers (RSW)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3456

12:55

Chicago Midway (MDW)

16:40

Fort Myers (RSW)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3456

13:10

Chicago Midway (MDW)

16:55

Fort Myers (RSW)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3456

13:20

Chicago Midway (MDW)

17:05

Fort Myers (RSW)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3456

14:45

Reno (RNO)

16:40

Phoenix Sky Harbor (PHX) 4

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3456

16:15

Reno (RNO)

18:10

Phoenix Sky Harbor (PHX) 4

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3456

17:25

Dallas Love Field (DAL) 1

19:10

Saint Louis (STL) 2

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3456

18:15

Las Vegas Harry Reid (LAS) 1

22:55

Kansas City (MCI)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Non-Direct Flights:

Southwest Airlines WN3456

05:40

Reno (RNO)

15:20

Boston Logan (BOS) B

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:40, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Southwest Airlines WN3456

08:00

Milwaukee (MKE)

11:05

Nashville (BNA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:05, 1-stop
Boeing 737-700 (Scimitar Winglets)

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Parallax here

This flight number is listed as serving the following routes:

Chicago Midway (MDW) - Boston Logan (BOS)
Chicago Midway (MDW) - Fort Myers (RSW)
Dallas Love Field (DAL) - Saint Louis (STL)
Denver (DEN) - Nashville (BNA)
Las Vegas Harry Reid (LAS) - Kansas City (MCI)
Las Vegas Harry Reid (LAS) - San Diego (SAN)
Milwaukee (MKE) - Nashville (BNA)
Milwaukee (MKE) - Saint Louis (STL)
New York LaGuardia (LGA) - Saint Louis (STL)
Reno (RNO) - Boston Logan (BOS)
Reno (RNO) - Chicago Midway (MDW)
Reno (RNO) - Phoenix Sky Harbor (PHX)
Saint Louis (STL) - Nashville (BNA)
San Antonio (SAT) - Las Vegas Harry Reid (LAS)

All Southwest Airlines flights

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