Spirit Airlines flight NK 743: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 19:45 Houston George Bush (IAH) A 23:09 Orlando (MCO)
NK 743 Non-stop Airbus A321neo (32Q) 2:24 Valid until 2026-01-07
Daily 20:45 Fort Lauderdale (FLL) 4 23:57 Boston Logan (BOS) B
NK 743 Non-stop Airbus A321 (32B) 3:12 Effective 2026-01-08 through 2026-03-11
Daily 20:57 Fort Lauderdale (FLL) 4 00:07 Boston Logan (BOS) B
NK 743 Non-stop Airbus A321 (32B) 3:10 Effective 2026-03-12 through 2026-04-14
The flight arrives 1 day after departure.
Daily 20:57 Fort Lauderdale (FLL) 4 23:59 Boston Logan (BOS) B
NK 743 Non-stop Airbus A321 (32B) 3:02 Effective 2026-04-15 through 2026-06-17
This flight number is listed as serving the following routes:


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Spirit Airlines flight NK 743: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Spirit Airlines NK743
19:45
Houston George Bush (IAH) A

23:09
Orlando (MCO)
Valid until 2026-01-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:24, non-stop
Airbus A321neo (32Q)
Direct Flights:
Spirit Airlines NK743
20:45
Fort Lauderdale (FLL) 4

23:57
Boston Logan (BOS) B
Effective 2026-01-08 through 2026-03-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:12, non-stop
Airbus A321 (32B)
Direct Flights:
Spirit Airlines NK743
20:57
Fort Lauderdale (FLL) 4

00:07(+1)
Boston Logan (BOS) B
Effective 2026-03-12 through 2026-04-14
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:10, non-stop
Airbus A321 (32B)
The flight arrives 1 day after departure.
Direct Flights:
Spirit Airlines NK743
20:57
Fort Lauderdale (FLL) 4

23:59
Boston Logan (BOS) B
Effective 2026-04-15 through 2026-06-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:02, non-stop
Airbus A321 (32B)
This flight number is listed as serving the following routes:
  • Fort Lauderdale (FLL) - Boston Logan (BOS)
  • Houston George Bush (IAH) - Orlando (MCO)
All Spirit Airlines flights
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