Southwest Airlines flight WN 3421: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 06:30 Las Vegas Harry Reid (LAS) 1 07:40 Santa Ana (SNA)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-10-02 through 2025-10-31
Sun 07:45 Burbank (BUR) 13:05 Houston Hobby (HOU)
WN 3421 Non-stop Boeing 737-700 (73W) 3:20 Effective 2025-08-10 through 2025-08-24
Sun 07:45 Burbank (BUR) 13:05 Houston Hobby (HOU)
WN 3421 Non-stop Boeing 737-700 (73W) 3:20 Effective 2025-09-07 through 2025-09-28
Tue,Wed 08:15 Burbank (BUR) 13:15 Love Field, Dallas (DAL) 1
WN 3421 Non-stop Boeing 737-700 (73W) 3:00 Valid until 2025-06-04
Tue,Wed 09:05 Milwaukee (MKE) 10:40 Kansas City (MCI)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-11-04 through 2025-11-12
Mon-Thu 09:05 Milwaukee (MKE) 10:40 Kansas City (MCI)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-11-17 through 2025-11-20
Mon-Fri 09:05 Milwaukee (MKE) 10:40 Kansas City (MCI)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-12-02 through 2025-12-11
Mon-Wed 09:05 Milwaukee (MKE) 10:40 Kansas City (MCI)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-12-15 through 2025-12-17
Wed,Thu 09:05 Milwaukee (MKE) 10:40 Kansas City (MCI)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-12-24 through 2026-01-01
Sun 13:25 Love Field, Dallas (DAL) 1 14:40 Lubbock (LBB)
WN 3421 Non-stop Boeing 737-700 (73W) 1:15 Valid until 2025-05-18
Sun 13:25 Love Field, Dallas (DAL) 1 14:40 Lubbock (LBB)
WN 3421 Non-stop Boeing 737-700 (73W) 1:15 Operates only on 2025-06-01
Sun 13:30 Love Field, Dallas (DAL) 1 14:45 Lubbock (LBB)
WN 3421 Non-stop Boeing 737-700 (73W) 1:15 Operates only on 2025-05-25
Tue,Wed 13:55 Love Field, Dallas (DAL) 1 15:10 Lubbock (LBB)
WN 3421 Non-stop Boeing 737-700 (73W) 1:15 Valid until 2025-06-04
Sat 14:35 Love Field, Dallas (DAL) 1 15:55 Lubbock (LBB)
WN 3421 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Valid until 2025-05-31
Mon,Thu,Fri 15:05 Love Field, Dallas (DAL) 1 16:20 Lubbock (LBB)
WN 3421 Non-stop Boeing 737-700 (73W) 1:15 Valid until 2025-06-02
Sun 15:20 Lubbock (LBB) 15:35 Las Vegas Harry Reid (LAS) 1
WN 3421 Non-stop Boeing 737-700 (73W) 2:15 Operates only on 2025-05-25
Sat 15:40 Saint Louis (STL) 2 18:00 John Glenn Columbus (CMH)
WN 3421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-06-07 through 2025-08-02
Sat 16:35 Portland (PDX) 18:25 San Jose (SJC) B
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2025-11-22 through 2025-11-29
Sat 16:35 Portland (PDX) 18:25 San Jose (SJC) B
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2025-12-20 through 2026-01-03
Mon,Thu,Fri 16:55 Lubbock (LBB) 17:15 Las Vegas Harry Reid (LAS) 1
WN 3421 Non-stop Boeing 737-700 (73W) 2:20 Valid until 2025-06-02
Mon,Thu,Fri 17:35 Saint Louis (STL) 2 19:55 John Glenn Columbus (CMH)
WN 3421 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 17:35 Saint Louis (STL) 2 19:55 John Glenn Columbus (CMH)
WN 3421 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-07-07 through 2025-08-04
Sat 19:00 San Jose (SJC) B 20:20 Los Angeles (LAX) 1
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-11-22 through 2025-11-29
Sat 19:00 San Jose (SJC) B 20:20 Los Angeles (LAX) 1
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-12-20 through 2026-01-03
Mon,Thu,Fri,Sun 19:35 Los Angeles (LAX) 1 22:00 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 19:35 Los Angeles (LAX) 1 22:00 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-21 through 2025-11-28
Fri,Sun 19:35 Los Angeles (LAX) 1 22:00 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-07 through 2025-12-14
Thu 19:35 Los Angeles (LAX) 1 22:00 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2025-12-18
Mon 19:35 Los Angeles (LAX) 1 22:00 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2026-01-05
Sun 19:40 San Francisco (SFO) 2 21:05 Los Angeles (LAX) 1
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2025-11-30
Tue,Wed 19:45 Saint Louis (STL) 2 22:05 John Glenn Columbus (CMH)
WN 3421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-06-10 through 2025-07-30
Mon-Wed 20:50 Los Angeles (LAX) 1 23:15 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 20:50 Los Angeles (LAX) 1 23:15 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-19 through 2026-01-04
Sat 20:55 Los Angeles (LAX) 1 23:20 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-22 through 2025-11-29
Sat 20:55 Los Angeles (LAX) 1 23:20 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-20 through 2026-01-03
Sun 21:40 Los Angeles (LAX) 1 00:05 Tucson (TUS)
WN 3421 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2025-11-30
The flight arrives 1 day after departure.
Sun 21:50 Saint Louis (STL) 2 00:10 John Glenn Columbus (CMH)
WN 3421 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-06-08 through 2025-08-03
The flight arrives 1 day after departure.
Non-Direct Flights:
Tue,Wed 08:15 Burbank (BUR) 15:10 Lubbock (LBB)
WN 3421 1-stop Boeing 737-700 (73W) 4:55 Valid until 2025-06-04
Sun 13:30 Love Field, Dallas (DAL) 1 15:35 Las Vegas Harry Reid (LAS) 1
WN 3421 1-stop Boeing 737-700 (73W) 4:05 Operates only on 2025-05-25
Mon,Thu,Fri 15:05 Love Field, Dallas (DAL) 1 17:15 Las Vegas Harry Reid (LAS) 1
WN 3421 1-stop Boeing 737-700 (73W) 4:10 Valid until 2025-06-02
Sat 16:35 Portland (PDX) 20:20 Los Angeles (LAX) 1
WN 3421 1-stop Boeing 737-700 (Scimitar Winglets) 3:45 Effective 2025-11-22 through 2025-11-29
Sat 16:35 Portland (PDX) 20:20 Los Angeles (LAX) 1
WN 3421 1-stop Boeing 737-700 (Scimitar Winglets) 3:45 Effective 2025-12-20 through 2026-01-03
Sat 19:00 San Jose (SJC) B 23:20 Tucson (TUS)
WN 3421 1-stop Boeing 737-700 (Scimitar Winglets) 3:20 Effective 2025-11-22 through 2025-11-29
Sat 19:00 San Jose (SJC) B 23:20 Tucson (TUS)
WN 3421 1-stop Boeing 737-700 (Scimitar Winglets) 3:20 Effective 2025-12-20 through 2026-01-03
Sun 19:40 San Francisco (SFO) 2 00:05 Tucson (TUS)
WN 3421 1-stop Boeing 737-700 (Scimitar Winglets) 3:25 Operates only on 2025-11-30
The flight arrives 1 day after departure.
Sat 16:35 Portland (PDX) 23:20 Tucson (TUS)
WN 3421 2-stop Boeing 737-700 (Scimitar Winglets) 5:45 Effective 2025-11-22 through 2025-11-29
Sat 16:35 Portland (PDX) 23:20 Tucson (TUS)
WN 3421 2-stop Boeing 737-700 (Scimitar Winglets) 5:45 Effective 2025-12-20 through 2026-01-03
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3421: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3421
06:30
Las Vegas Harry Reid (LAS) 1

07:40
Santa Ana (SNA)
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
07:45
Burbank (BUR)

13:05
Houston Hobby (HOU)
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
07:45
Burbank (BUR)

13:05
Houston Hobby (HOU)
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
08:15
Burbank (BUR)

13:15
Love Field, Dallas (DAL) 1
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
09:05
Milwaukee (MKE)

10:40
Kansas City (MCI)
Effective 2025-11-04 through 2025-11-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
09:05
Milwaukee (MKE)

10:40
Kansas City (MCI)
Effective 2025-11-17 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
09:05
Milwaukee (MKE)

10:40
Kansas City (MCI)
Effective 2025-12-02 through 2025-12-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
09:05
Milwaukee (MKE)

10:40
Kansas City (MCI)
Effective 2025-12-15 through 2025-12-17
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
09:05
Milwaukee (MKE)

10:40
Kansas City (MCI)
Effective 2025-12-24 through 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
13:25
Love Field, Dallas (DAL) 1

14:40
Lubbock (LBB)
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
13:25
Love Field, Dallas (DAL) 1

14:40
Lubbock (LBB)
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
13:30
Love Field, Dallas (DAL) 1

14:45
Lubbock (LBB)
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
13:55
Love Field, Dallas (DAL) 1

15:10
Lubbock (LBB)
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
14:35
Love Field, Dallas (DAL) 1

15:55
Lubbock (LBB)
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3421
15:05
Love Field, Dallas (DAL) 1

16:20
Lubbock (LBB)
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
15:20
Lubbock (LBB)

15:35
Las Vegas Harry Reid (LAS) 1
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
15:40
Saint Louis (STL) 2

18:00
John Glenn Columbus (CMH)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:20, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3421
16:35
Portland (PDX)

18:25
San Jose (SJC) B
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
16:35
Portland (PDX)

18:25
San Jose (SJC) B
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
16:55
Lubbock (LBB)

17:15
Las Vegas Harry Reid (LAS) 1
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
17:35
Saint Louis (STL) 2

19:55
John Glenn Columbus (CMH)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
17:35
Saint Louis (STL) 2

19:55
John Glenn Columbus (CMH)
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
19:00
San Jose (SJC) B

20:20
Los Angeles (LAX) 1
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:00
San Jose (SJC) B

20:20
Los Angeles (LAX) 1
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:35
Los Angeles (LAX) 1

22:00
Tucson (TUS)
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:35
Los Angeles (LAX) 1

22:00
Tucson (TUS)
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:35
Los Angeles (LAX) 1

22:00
Tucson (TUS)
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:35
Los Angeles (LAX) 1

22:00
Tucson (TUS)
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:35
Los Angeles (LAX) 1

22:00
Tucson (TUS)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:40
San Francisco (SFO) 2

21:05
Los Angeles (LAX) 1
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:45
Saint Louis (STL) 2

22:05
John Glenn Columbus (CMH)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3421
20:50
Los Angeles (LAX) 1

23:15
Tucson (TUS)
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
20:50
Los Angeles (LAX) 1

23:15
Tucson (TUS)
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
20:55
Los Angeles (LAX) 1

23:20
Tucson (TUS)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
20:55
Los Angeles (LAX) 1

23:20
Tucson (TUS)
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
21:40
Los Angeles (LAX) 1

00:05(+1)
Tucson (TUS)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.
Southwest Airlines WN3421
21:50
Saint Louis (STL) 2

00:10(+1)
John Glenn Columbus (CMH)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN3421
08:15
Burbank (BUR)

15:10
Lubbock (LBB)
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:55, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
13:30
Love Field, Dallas (DAL) 1

15:35
Las Vegas Harry Reid (LAS) 1
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:05, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
15:05
Love Field, Dallas (DAL) 1

17:15
Las Vegas Harry Reid (LAS) 1
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:10, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN3421
16:35
Portland (PDX)

20:20
Los Angeles (LAX) 1
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
16:35
Portland (PDX)

20:20
Los Angeles (LAX) 1
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:00
San Jose (SJC) B

23:20
Tucson (TUS)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:20, 1-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:00
San Jose (SJC) B

23:20
Tucson (TUS)
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:20, 1-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
19:40
San Francisco (SFO) 2

00:05(+1)
Tucson (TUS)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:25, 1-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.
Southwest Airlines WN3421
16:35
Portland (PDX)

23:20
Tucson (TUS)
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:45, 2-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3421
16:35
Portland (PDX)

23:20
Tucson (TUS)
Effective 2025-12-20 through 2026-01-03
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Duration: 5:45, 2-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Burbank (BUR) - Houston Hobby (HOU)
  • Burbank (BUR) - Love Field, Dallas (DAL)
  • Burbank (BUR) - Lubbock (LBB)
  • Las Vegas Harry Reid (LAS) - Santa Ana (SNA)
  • Los Angeles (LAX) - Tucson (TUS)
  • Love Field, Dallas (DAL) - Las Vegas Harry Reid (LAS)
  • Love Field, Dallas (DAL) - Lubbock (LBB)
  • Lubbock (LBB) - Las Vegas Harry Reid (LAS)
  • Milwaukee (MKE) - Kansas City (MCI)
  • Portland (PDX) - Los Angeles (LAX)
  • Portland (PDX) - San Jose (SJC)
  • Portland (PDX) - Tucson (TUS)
  • Saint Louis (STL) - John Glenn Columbus (CMH)
  • San Francisco (SFO) - Los Angeles (LAX)
  • San Francisco (SFO) - Tucson (TUS)
  • San Jose (SJC) - Los Angeles (LAX)
  • San Jose (SJC) - Tucson (TUS)
All Southwest Airlines flights
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