Spirit Airlines flight NK 456: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 16:40 Luis Munoz Marin, San Juan (SJU) B 21:03 Newark Liberty, New York (EWR) B
NK 456 Non-stop Airbus A320 (320) 4:23 Effective 2026-03-12 through 2026-04-14
Mon-Wed,Sun 16:45 Luis Munoz Marin, San Juan (SJU) B 21:00 Newark Liberty, New York (EWR) B
NK 456 Non-stop Airbus A320 (320) 4:15 Effective 2026-03-08 through 2026-03-11
Daily 17:45 Luis Munoz Marin, San Juan (SJU) B 21:00 Newark Liberty, New York (EWR) B
NK 456 Non-stop Airbus A320 (320) 4:15 Effective 2026-02-12 through 2026-03-07
Daily 17:50 Luis Munoz Marin, San Juan (SJU) B 21:05 Newark Liberty, New York (EWR) B
NK 456 Non-stop Airbus A320 (320) 4:15 Effective 2026-01-08 through 2026-02-11
Mon,Tue,Thu-Sun 22:55 Fort Lauderdale (FLL) 4 00:58 Austin (AUS)
NK 456 Non-stop Airbus A321neo (32Q) 3:03 Valid until 2026-01-06
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:


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Spirit Airlines flight NK 456: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Spirit Airlines NK456
16:40
Luis Munoz Marin, San Juan (SJU) B

21:03
Newark Liberty, New York (EWR) B
Effective 2026-03-12 through 2026-04-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:23, non-stop
Airbus A320 (320)
Direct Flights:
Spirit Airlines NK456
16:45
Luis Munoz Marin, San Juan (SJU) B

21:00
Newark Liberty, New York (EWR) B
Effective 2026-03-08 through 2026-03-11
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:15, non-stop
Airbus A320 (320)
Direct Flights:
Spirit Airlines NK456
17:45
Luis Munoz Marin, San Juan (SJU) B

21:00
Newark Liberty, New York (EWR) B
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:15, non-stop
Airbus A320 (320)
Direct Flights:
Spirit Airlines NK456
17:50
Luis Munoz Marin, San Juan (SJU) B

21:05
Newark Liberty, New York (EWR) B
Effective 2026-01-08 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:15, non-stop
Airbus A320 (320)
Direct Flights:
Spirit Airlines NK456
22:55
Fort Lauderdale (FLL) 4

00:58(+1)
Austin (AUS)
Valid until 2026-01-06
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 3:03, non-stop
Airbus A321neo (32Q)
The flight arrives 1 day after departure.
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This flight number is listed as serving the following routes:
  • Fort Lauderdale (FLL) - Austin (AUS)
  • Luis Munoz Marin, San Juan (SJU) - Newark Liberty, New York (EWR)
All Spirit Airlines flights
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