Southwest Airlines flight WN 421: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Sat 05:30 Little Rock (LIT) 06:55 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Effective 2024-11-23 through 2024-11-30
Sun 05:30 Little Rock (LIT) 06:55 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Operates only on 2024-12-01
Sat 05:30 Little Rock (LIT) 06:55 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Effective 2024-12-21 through 2025-01-04
Mon,Thu,Fri,Sun 05:30 Little Rock (LIT) 06:55 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-02-13 through 2025-02-17
Thu,Fri,Sun 05:30 Little Rock (LIT) 06:55 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-02-21 through 2025-03-02
Thu,Fri,Sun 05:40 Little Rock (LIT) 07:05 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Effective 2024-11-03 through 2024-11-10
Mon,Thu,Fri,Sun 05:40 Little Rock (LIT) 07:05 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Effective 2024-11-11 through 2024-11-28
Fri,Sun 05:40 Little Rock (LIT) 07:05 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Effective 2024-12-08 through 2024-12-15
Thu 05:40 Little Rock (LIT) 07:05 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Operates only on 2024-12-19
Fri 05:40 Little Rock (LIT) 07:05 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:25 Operates only on 2025-01-03
Mon,Thu,Fri 05:50 Kansas City (MCI) 09:30 Orlando (MCO) WN 421 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2024-10-03 through 2024-10-28
Fri 05:50 Kansas City (MCI) 09:30 Orlando (MCO) WN 421 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2024-11-01
Sat 06:05 Little Rock (LIT) 07:25 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-02-15 through 2025-03-01
Thu 06:10 Kansas City (MCI) 09:50 Orlando (MCO) WN 421 Non-stop Boeing 737-700 (73W) 2:40 Operates only on 2024-10-31
Thu,Fri,Sun 06:10 Little Rock (LIT) 07:30 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-01-12 through 2025-01-17
Mon,Sun 06:10 Little Rock (LIT) 07:30 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-01-20 through 2025-01-26
Thu,Fri,Sun 06:10 Little Rock (LIT) 07:30 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-02-02 through 2025-02-07
Mon 06:10 Little Rock (LIT) 07:30 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Operates only on 2025-02-10
Mon,Tue,Thu 06:10 Little Rock (LIT) 07:30 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-02-18 through 2025-02-24
Mon 06:10 Little Rock (LIT) 07:30 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Operates only on 2025-03-03
Sat 06:20 Little Rock (LIT) 07:40 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2024-11-09 through 2024-11-16
Sat 06:20 Little Rock (LIT) 07:40 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2024-12-07 through 2024-12-14
Sat 06:40 Kansas City (MCI) 10:15 Orlando (MCO) WN 421 Non-stop Boeing 737-700 (73W) 2:35 Effective 2024-10-05 through 2024-11-02
Tue,Wed,Sun 06:45 Kansas City (MCI) 10:20 Orlando (MCO) WN 421 Non-stop Boeing 737-700 (73W) 2:35 Effective 2024-10-06 through 2024-10-30
Mon-Fri 06:45 Little Rock (LIT) 08:00 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-01-07 through 2025-01-15
Tue-Fri,Sun 06:45 Little Rock (LIT) 08:00 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-01-19 through 2025-01-24
Mon-Fri 06:45 Little Rock (LIT) 08:00 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-01-27 through 2025-02-05
Tue,Wed,Sun 06:45 Little Rock (LIT) 08:00 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-02-09 through 2025-02-12
Tue,Wed 06:45 Little Rock (LIT) 08:00 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-02-19 through 2025-03-05
Mon-Wed 06:50 Little Rock (LIT) 08:10 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2024-11-04 through 2024-11-06
Tue,Wed 06:50 Little Rock (LIT) 08:10 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2024-11-12 through 2024-11-20
Tue-Fri 06:50 Little Rock (LIT) 08:10 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2024-11-29 through 2024-12-06
Mon-Thu 06:50 Little Rock (LIT) 08:10 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2024-12-09 through 2024-12-18
Tue,Wed 06:50 Little Rock (LIT) 08:10 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2024-12-24 through 2025-01-01
Mon 06:50 Little Rock (LIT) 08:10 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:20 Operates only on 2025-01-06
Sun 07:45 Saint Louis (STL) 2 11:05 New York LaGuardia (LGA) B WN 421 Non-stop Boeing 737-800 (73H) 2:20 Operates only on 2024-12-01
Sat 09:05 Little Rock (LIT) 10:20 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-01-11 through 2025-02-08
Mon,Thu,Fri 11:15 Long Beach (LGB) 17:10 Midway, Chicago (MDW) WN 421 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Valid until 2024-09-30
Sat 11:40 Norfolk (ORF) 12:30 Nashville (BNA) WN 421 Non-stop Boeing 737-700 (73W) 1:50 Valid until 2024-09-28
Mon-Wed 14:55 Denver (DEN) 17:50 Little Rock (LIT) WN 421 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2024-11-26 through 2024-12-02
Mon,Thu,Fri,Sun 14:55 Denver (DEN) 17:50 Little Rock (LIT) WN 421 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2024-12-20 through 2025-01-02
Sun 14:55 Denver (DEN) 17:50 Little Rock (LIT) WN 421 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Operates only on 2025-01-05
Tue,Wed 18:10 Denver (DEN) 20:05 El Paso (ELP) WN 421 Non-stop Boeing 737-800 (73H) 1:55 Valid until 2024-10-01
Wed 18:10 Denver (DEN) 20:05 El Paso (ELP) WN 421 Non-stop Boeing 737-700 (73W) 1:55 Operates only on 2024-10-02
Sun 18:15 Norfolk (ORF) 19:10 Nashville (BNA) WN 421 Non-stop Boeing 737-700 (73W) 1:55 Operates only on 2024-09-01
Mon-Wed 18:35 Little Rock (LIT) 19:45 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2024-11-26 through 2024-12-02
Mon,Thu,Fri,Sun 18:35 Little Rock (LIT) 19:45 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2024-12-20 through 2025-01-02
Sun 18:35 Little Rock (LIT) 19:45 Saint Louis (STL) 2 WN 421 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Operates only on 2025-01-05
Sun 20:40 Norfolk (ORF) 21:30 Nashville (BNA) WN 421 Non-stop Boeing 737-800 (73H) 1:50 Effective 2024-09-08 through 2024-09-29
Non-Direct Flights:
Sun 05:30 Little Rock (LIT) 11:05 New York LaGuardia (LGA) B WN 421 1-stop Boeing 737-800 (73H) 4:35 Operates only on 2024-12-01
Mon-Wed 14:55 Denver (DEN) 19:45 Saint Louis (STL) 2 WN 421 1-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2024-11-26 through 2024-12-02
Mon,Thu,Fri,Sun 14:55 Denver (DEN) 19:45 Saint Louis (STL) 2 WN 421 1-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2024-12-20 through 2025-01-02
Sun 14:55 Denver (DEN) 19:45 Saint Louis (STL) 2 WN 421 1-stop Boeing 737 MAX 8 (7M8) 3:50 Operates only on 2025-01-05

This flight number is listed as serving the following routes:

Denver (DEN) - El Paso (ELP)
Denver (DEN) - Little Rock (LIT)
Denver (DEN) - Saint Louis (STL)
Kansas City (MCI) - Orlando (MCO)
Little Rock (LIT) - New York LaGuardia (LGA)
Little Rock (LIT) - Saint Louis (STL)
Long Beach (LGB) - Midway, Chicago (MDW)
Norfolk (ORF) - Nashville (BNA)
Saint Louis (STL) - New York LaGuardia (LGA)

All Southwest Airlines flights

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Southwest Airlines flight WN 421: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN421

05:30

Little Rock (LIT)

06:55

Saint Louis (STL) 2

Effective 2024-11-23 through 2024-11-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:30

Little Rock (LIT)

06:55

Saint Louis (STL) 2

Operates only on 2024-12-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:30

Little Rock (LIT)

06:55

Saint Louis (STL) 2

Effective 2024-12-21 through 2025-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:30

Little Rock (LIT)

06:55

Saint Louis (STL) 2

Effective 2025-02-13 through 2025-02-17

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:30

Little Rock (LIT)

06:55

Saint Louis (STL) 2

Effective 2025-02-21 through 2025-03-02

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:40

Little Rock (LIT)

07:05

Saint Louis (STL) 2

Effective 2024-11-03 through 2024-11-10

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:40

Little Rock (LIT)

07:05

Saint Louis (STL) 2

Effective 2024-11-11 through 2024-11-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:40

Little Rock (LIT)

07:05

Saint Louis (STL) 2

Effective 2024-12-08 through 2024-12-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:40

Little Rock (LIT)

07:05

Saint Louis (STL) 2

Operates only on 2024-12-19

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:40

Little Rock (LIT)

07:05

Saint Louis (STL) 2

Operates only on 2025-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

05:50

Kansas City (MCI)

09:30

Orlando (MCO)

Effective 2024-10-03 through 2024-10-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Southwest Airlines WN421

05:50

Kansas City (MCI)

09:30

Orlando (MCO)

Operates only on 2024-11-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

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

Southwest Airlines WN421

06:05

Little Rock (LIT)

07:25

Saint Louis (STL) 2

Effective 2025-02-15 through 2025-03-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:20, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN421

06:10

Kansas City (MCI)

09:50

Orlando (MCO)

Operates only on 2024-10-31

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN421

06:10

Little Rock (LIT)

07:30

Saint Louis (STL) 2

Effective 2025-01-12 through 2025-01-17

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:10

Little Rock (LIT)

07:30

Saint Louis (STL) 2

Effective 2025-01-20 through 2025-01-26

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:10

Little Rock (LIT)

07:30

Saint Louis (STL) 2

Effective 2025-02-02 through 2025-02-07

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:10

Little Rock (LIT)

07:30

Saint Louis (STL) 2

Operates only on 2025-02-10

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:10

Little Rock (LIT)

07:30

Saint Louis (STL) 2

Effective 2025-02-18 through 2025-02-24

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:10

Little Rock (LIT)

07:30

Saint Louis (STL) 2

Operates only on 2025-03-03

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:20

Little Rock (LIT)

07:40

Saint Louis (STL) 2

Effective 2024-11-09 through 2024-11-16

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:20

Little Rock (LIT)

07:40

Saint Louis (STL) 2

Effective 2024-12-07 through 2024-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:40

Kansas City (MCI)

10:15

Orlando (MCO)

Effective 2024-10-05 through 2024-11-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:35, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN421

06:45

Kansas City (MCI)

10:20

Orlando (MCO)

Effective 2024-10-06 through 2024-10-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:35, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN421

06:45

Little Rock (LIT)

08:00

Saint Louis (STL) 2

Effective 2025-01-07 through 2025-01-15

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:45

Little Rock (LIT)

08:00

Saint Louis (STL) 2

Effective 2025-01-19 through 2025-01-24

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:45

Little Rock (LIT)

08:00

Saint Louis (STL) 2

Effective 2025-01-27 through 2025-02-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:45

Little Rock (LIT)

08:00

Saint Louis (STL) 2

Effective 2025-02-09 through 2025-02-12

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:45

Little Rock (LIT)

08:00

Saint Louis (STL) 2

Effective 2025-02-19 through 2025-03-05

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:50

Little Rock (LIT)

08:10

Saint Louis (STL) 2

Effective 2024-11-04 through 2024-11-06

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:50

Little Rock (LIT)

08:10

Saint Louis (STL) 2

Effective 2024-11-12 through 2024-11-20

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:50

Little Rock (LIT)

08:10

Saint Louis (STL) 2

Effective 2024-11-29 through 2024-12-06

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:50

Little Rock (LIT)

08:10

Saint Louis (STL) 2

Effective 2024-12-09 through 2024-12-18

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:50

Little Rock (LIT)

08:10

Saint Louis (STL) 2

Effective 2024-12-24 through 2025-01-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

06:50

Little Rock (LIT)

08:10

Saint Louis (STL) 2

Operates only on 2025-01-06

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

07:45

Saint Louis (STL) 2

11:05

New York LaGuardia (LGA) B

Operates only on 2024-12-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

09:05

Little Rock (LIT)

10:20

Saint Louis (STL) 2

Effective 2025-01-11 through 2025-02-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

11:15

Long Beach (LGB)

17:10

Midway, Chicago (MDW)

Valid until 2024-09-30

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN421

11:40

Norfolk (ORF)

12:30

Nashville (BNA)

Valid until 2024-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:50, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN421

14:55

Denver (DEN)

17:50

Little Rock (LIT)

Effective 2024-11-26 through 2024-12-02

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN421

14:55

Denver (DEN)

17:50

Little Rock (LIT)

Effective 2024-12-20 through 2025-01-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Southwest Airlines WN421

14:55

Denver (DEN)

17:50

Little Rock (LIT)

Operates only on 2025-01-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN421

18:10

Denver (DEN)

20:05

El Paso (ELP)

Valid until 2024-10-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN421

18:10

Denver (DEN)

20:05

El Paso (ELP)

Operates only on 2024-10-02

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:55, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN421

18:15

Norfolk (ORF)

19:10

Nashville (BNA)

Operates only on 2024-09-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:55, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN421

18:35

Little Rock (LIT)

19:45

Saint Louis (STL) 2

Effective 2024-11-26 through 2024-12-02

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN421

18:35

Little Rock (LIT)

19:45

Saint Louis (STL) 2

Effective 2024-12-20 through 2025-01-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN421

18:35

Little Rock (LIT)

19:45

Saint Louis (STL) 2

Operates only on 2025-01-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN421

20:40

Norfolk (ORF)

21:30

Nashville (BNA)

Effective 2024-09-08 through 2024-09-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:50, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN421

05:30

Little Rock (LIT)

11:05

New York LaGuardia (LGA) B

Operates only on 2024-12-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:35, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN421

14:55

Denver (DEN)

19:45

Saint Louis (STL) 2

Effective 2024-11-26 through 2024-12-02

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:50, 1-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN421

14:55

Denver (DEN)

19:45

Saint Louis (STL) 2

Effective 2024-12-20 through 2025-01-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:50, 1-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN421

14:55

Denver (DEN)

19:45

Saint Louis (STL) 2

Operates only on 2025-01-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:50, 1-stop
Boeing 737 MAX 8 (7M8)

This flight number is listed as serving the following routes:

Denver (DEN) - El Paso (ELP)
Denver (DEN) - Little Rock (LIT)
Denver (DEN) - Saint Louis (STL)
Kansas City (MCI) - Orlando (MCO)
Little Rock (LIT) - New York LaGuardia (LGA)
Little Rock (LIT) - Saint Louis (STL)
Long Beach (LGB) - Midway, Chicago (MDW)
Norfolk (ORF) - Nashville (BNA)
Saint Louis (STL) - New York LaGuardia (LGA)

All Southwest Airlines flights

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