NK578

NK578 (Spirit Airlines) is a multi-stop service on 3 routes, busiest Detroit to Fort Lauderdale. Of 184 departures recorded from January 2025 to April 2026, 80.9% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

Months without data are left blank.

The most recent periods9 periods
PeriodDepartures 2025Departures 2026Change vs last year
January1317▲ 30.8%
February24240.0%
March2931▲ 6.9%
April2714▼ 48.1%
May5––
June–––
July–––
August–––
September–––
October––in progress
November–––
December–––
Year to date (Jan–Apr)9386▼ 7.5%

according to the US BTS · January 2025 → April 2026

On-time departures by month

All legs combined

Months without data are left blank.

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods9 periods
PeriodOn time 2025On time 2026Change vs last year
January100.0%88.2%▼ 11.8%
February87.5%75.0%▼ 14.3%
March82.1%60.7%▼ 26.1%
April92.6%78.6%▼ 15.1%
May60.0%––
June–––
July–––
August–––
September–––
October––in progress
November–––
December–––
Year-to-date average (Jan–Apr)90.6%75.6%▼ 16.5%

according to the US BTS · January 2025 → April 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · January 2025 → April 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods9 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January20▼ 100.0%
February00–
March13▲ 200.0%
April00–
May0––
June–––
July–––
August–––
September–––
October––in progress
November–––
December–––
Year to date (Jan–Apr)330.0%

according to the US BTS · January 2025 → April 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 96.7% 178
  • Cancelled 3.3% 6

Share of all recorded flights in the period, all legs. · Jan 10, 2025 → Apr 14, 2026

On time, leg by leg

  1. DTW–FLL86 73.5%
  2. MCO–DTW58 86.0%
  3. ATL–PHL40 89.5%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

3
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
January 2025 13 11 100.0% 2
February 2025 24 24 87.5% 0
March 2025 29 28 82.1% 1
April 2025 27 27 92.6% 0
May 2025 5 5 60.0% 0
January 2026 17 17 88.2% 0
February 2026 24 24 75.0% 0
March 2026 31 28 60.7% 3
April 2026 14 14 78.6% 0

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