Southwest Airlines
flug
WN 3421:
Multiple routes
FLUGPLAN
Direktflüge:
Southwest Airlines WN3421
Effective 2026-08-09 through 2026-09-27
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Mi
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Fr
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Sa
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Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direktflüge:
Southwest Airlines WN3421
Valid until 2026-01-01
Mo
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Mi
Do
Fr
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Sa
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So
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Duration: 1:35, non-stop
Boeing 737-700 (73W)
Boeing 737-700 (73W)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-01-10 through 2026-02-07
Mo
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Di
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Mi
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Do
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Fr
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Sa
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Duration: 5:35, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Operates only on 2026-01-03
Mo
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Di
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Mi
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Do
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Fr
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Sa
So
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Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Operates only on 2026-05-24
Mo
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Di
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Mi
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Do
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Fr
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Sa
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Duration: 2:35, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-01-11 through 2026-01-16
Mo
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Di
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Mi
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Do
Fr
Sa
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So
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-01-19 through 2026-01-25
Mo
Di
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Mi
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Do
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Fr
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Sa
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So
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-02-01 through 2026-02-06
Mo
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Di
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Mi
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Do
Fr
Sa
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So
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-02-09 through 2026-02-15
Mo
Di
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Mi
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Do
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Fr
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Sa
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So
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-02-17 through 2026-02-23
Mo
Di
Mi
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Do
Fr
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Sa
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So
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Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Operates only on 2026-03-02
Mo
Di
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Mi
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Do
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Fr
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Sa
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So
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Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-04-09 through 2026-06-01
Mo
Di
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Mi
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Do
Fr
Sa
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So
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Duration: 2:35, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-04-12 through 2026-05-17
Mo
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Di
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Mi
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Do
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Fr
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Sa
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So
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Operates only on 2026-05-31
Mo
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Di
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Mi
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Do
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Fr
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Sa
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So
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-02-12 through 2026-02-16
Mo
Di
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Mi
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Do
Fr
Sa
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So
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Duration: 1:45, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-02-20 through 2026-03-01
Mo
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Di
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Mi
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Do
Fr
Sa
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So
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-04-11 through 2026-05-30
Mo
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Di
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Mi
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Do
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Fr
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Sa
So
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Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-01-10 through 2026-02-07
Mo
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Di
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Mi
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Do
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Fr
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Sa
So
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Duration: 1:40, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Operates only on 2026-01-03
Mo
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Di
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Mi
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Do
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Fr
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Sa
So
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Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-04-07 through 2026-06-03
Mo
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Di
Mi
Do
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Fr
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Sa
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So
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Duration: 2:35, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-08-06 through 2026-09-28
Mo
Di
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Mi
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Do
Fr
Sa
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So
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Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-01-06 through 2026-01-14
Mo
Di
Mi
Do
Fr
Sa
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So
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Duration: 1:45, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-01-18 through 2026-01-23
Mo
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Di
Mi
Do
Fr
Sa
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So
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-01-26 through 2026-02-04
Mo
Di
Mi
Do
Fr
Sa
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So
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Duration: 1:45, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-02-08 through 2026-02-11
Mo
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Di
Mi
Do
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Fr
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Sa
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So
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-02-18 through 2026-03-04
Mo
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Di
Mi
Do
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Fr
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Sa
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So
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Duration: 1:45, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Operates only on 2026-01-05
Mo
Di
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Mi
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Do
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Fr
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Sa
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So
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Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-06-09 through 2026-07-29
Mo
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Di
Mi
Do
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Fr
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Sa
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So
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Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-01-02 through 2026-01-04
Mo
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Di
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Mi
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Do
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Fr
Sa
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So
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Operates only on 2026-01-03
Mo
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Di
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Mi
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Do
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Fr
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Sa
So
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Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-06-04 through 2026-08-03
Mo
Di
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Mi
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Do
Fr
Sa
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So
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Duration: 1:30, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direktflüge:
Southwest Airlines WN3421
Effective 2026-06-07 through 2026-08-02
Mo
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Di
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Mi
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Do
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Fr
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Sa
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So
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Indirekte Flüge:
Southwest Airlines WN3421
Effective 2026-01-10 through 2026-02-07
Mo
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Di
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Mi
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Do
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Fr
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Sa
So
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Duration: 8:05, 1-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Indirekte Flüge:
Southwest Airlines WN3421
Operates only on 2026-01-03
Mo
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Di
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Mi
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Do
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Fr
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Sa
So
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Duration: 3:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Indirekte Flüge:
Southwest Airlines WN3421
Operates only on 2026-01-03
Mo
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Di
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Mi
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Do
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Fr
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Sa
So
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Duration: 3:20, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Indirekte Flüge:
Southwest Airlines WN3421
Operates only on 2026-01-03
Mo
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Di
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Mi
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Do
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Fr
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Sa
So
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Duration: 5:45, 2-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
This flight number is listed as serving the following routes:
- Dallas Love Field (DAL) - Orlando (MCO)
- Denver (DEN) - Sacramento (SMF)
- Los Angeles (LAX) - Tucson (TUS)
- Milwaukee (MKE) - Kansas City (MCI)
- Orlando (MCO) - San Diego (SAN)
- Orlando (MCO) - San Francisco (SFO)
- Portland (PDX) - Los Angeles (LAX)
- Portland (PDX) - San Jose (SJC)
- Portland (PDX) - Tucson (TUS)
- Raleigh/Durham (RDU) - Nashville (BNA)
- San Diego (SAN) - San Francisco (SFO)
- San Jose (SJC) - Los Angeles (LAX)
- San Jose (SJC) - Tucson (TUS)