NK2173

NK2173 (Spirit Airlines) is a multi-stop service on 3 routes, busiest Atlanta to Houston. Of 120 departures recorded from May 2025 to September 2025, 66.7% left on time, according to the US BTS.

Recorded departures by month

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

The most recent periods5 periods
PeriodDepartures 2024Departures 2025Change vs last year
January–––
February–––
March–––
April–––
May–25–
June–30–
July–31–
August–31–
September–3–
October–––
November–––
December–––

according to the US BTS · May 2025 → September 2025

On-time departures by month

All legs combined

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

The most recent periods5 periods
PeriodOn time 2024On time 2025Change vs last year
January–––
February–––
March–––
April–––
May–58.3%–
June–28.6%–
July–83.9%–
August–87.1%–
September–100.0%–
October–––
November–––
December–––

according to the US BTS · May 2025 → September 2025

Average departure delay by month

All legs combined

according to the US BTS · May 2025 → September 2025

Cancelled departures by month

All legs combined
The most recent periods5 periods
PeriodCancelled 2024Cancelled 2025Change vs last year
January–––
February–––
March–––
April–––
May–1–
June–2–
July–0–
August–0–
September–0–
October–––
November–––
December–––

according to the US BTS · May 2025 → September 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 97.5% 117
  • Cancelled 2.5% 3

Share of all recorded flights in the period, all legs. · May 7, 2025 → Sep 3, 2025

On time, leg by leg

  1. ATL–IAH63 43.3%
  2. SMF–LAS35 85.7%

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
May 2025 25 24 58.3% 1
June 2025 30 28 28.6% 2
July 2025 31 31 83.9% 0
August 2025 31 31 87.1% 0
September 2025 3 3 100.0% 0

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