NK517

NK517 (Spirit Airlines) is a multi-stop service on 5 routes, busiest Fort Lauderdale to Austin. Of 179 departures recorded from October 2024 to January 2026, 75.7% 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 periods7 periods
PeriodDepartures 2025Departures 2026Change vs last year
January227▼ 68.2%
February6––
March–––
April15––
May5––
June–––
July–––
August–––
September–––
October––in progress
November28––
December23––
Year to date (Jan–Jan)227▼ 68.2%

according to the US BTS · October 2024 → January 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 periods7 periods
PeriodOn time 2025On time 2026Change vs last year
January90.9%14.3%▼ 84.3%
February83.3%––
March–––
April73.3%––
May60.0%––
June–––
July–––
August–––
September–––
October––in progress
November70.4%––
December77.3%––
Year-to-date average (Jan–Jan)90.9%14.3%▼ 84.3%

according to the US BTS · October 2024 → January 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → January 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods7 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February0––
March–––
April0––
May0––
June–––
July–––
August–––
September–––
October––in progress
November1––
December1––
Year to date (Jan–Jan)00

according to the US BTS · October 2024 → January 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 98.9% 177
  • Cancelled 1.1% 2

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jan 7, 2026

On time, leg by leg

  1. FLL–AUS81 80.3%
  2. MYR–BOS30 69.0%

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

Legs flown under this number

2
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 85.0% 0
November 2024 26 26 96.2% 0
December 2024 27 27 59.3% 0
January 2025 22 22 90.9% 0
February 2025 6 6 83.3% 0
April 2025 15 15 73.3% 0
May 2025 5 5 60.0% 0
November 2025 28 27 70.4% 1
December 2025 23 22 77.3% 1
January 2026 7 7 14.3% 0

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