NK430: Miami to Houston
Spirit Airlines flight NK430 flies from Miami (MIA) to Houston (IAH), 1,549 km. Over December 2025 to January 2026 it usually arrives about 12 minutes late: 68% of 35 flights arrived within 15 minutes of schedule and 0% were cancelled (US Department of Transportation data).
On-time record, last 12 months
Every operation of NK430, December 2025 to January 2026: 35 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as NK430
- Miami (MIA) to Houston (IAH)35 flights
Other flights from Miami to Houston
More about Miami (MIA) and Houston (IAH).
Questions and answers
- Is NK430 usually on time?
- 68% of Spirit Airlines flight NK430's 35 flights from December 2025 to January 2026 arrived within 15 minutes of schedule. It arrived about 12 minutes late on average.
- How often is NK430 cancelled or badly delayed?
- 0% of NK430's scheduled flights were cancelled from December 2025 to January 2026 (0 of 35), and 15% of the flights that operated arrived more than 30 minutes late.
- What route does NK430 fly?
- NK430 most often flies from Miami (MIA) to Houston (IAH), 1,549 km (35 flights in the period).
- Where do these NK430 figures come from?
- From the US Bureau of Transportation Statistics (BTS) on-time records, which cover every domestic flight by the larger US airlines. The figures cover December 2025 to January 2026 and are updated each month when new BTS data is published, about two months after the month ends. See how TripStow measures punctuality.
How does Spirit Airlines compare? Spirit Airlines' on-time record and the US airline league table.
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