NK520

NK520 (Spirit Airlines) is a multi-stop service on 4 routes, busiest Los Angeles to Detroit. Of 119 departures recorded from December 2024 to December 2025, 82.1% 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 periods8 periods
PeriodDepartures 2024Departures 2025Change vs last year
January–17–
February–18–
March–15–
April–27–
May–5–
June–––
July–––
August–––
September–––
October–––
November–26–
December83▼ 62.5%

according to the US BTS · December 2024 → December 2025

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 periods8 periods
PeriodOn time 2024On time 2025Change vs last year
January–73.3%–
February–77.8%–
March–86.7%–
April–88.9%–
May–80.0%–
June–––
July–––
August–––
September–––
October–––
November–80.8%–
December75.0%100.0%▲ 33.3%

according to the US BTS · December 2024 → December 2025

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · December 2024 → December 2025

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods8 periods
PeriodCancelled 2024Cancelled 2025Change vs last year
January–2–
February–0–
March–0–
April–0–
May–0–
June–––
July–––
August–––
September–––
October–––
November–0–
December00–

according to the US BTS · December 2024 → December 2025

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 98.3% 117
  • Cancelled 1.7% 2

Share of all recorded flights in the period, all legs. · Dec 5, 2024 → Dec 3, 2025

On time, leg by leg

  1. LAX–DTW45 86.7%
  2. ATL–BWI37 77.1%

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
December 2024 8 8 75.0% 0
January 2025 17 15 73.3% 2
February 2025 18 18 77.8% 0
March 2025 15 15 86.7% 0
April 2025 27 27 88.9% 0
May 2025 5 5 80.0% 0
November 2025 26 26 80.8% 0
December 2025 3 3 100.0% 0

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