NK1155

NK1155 (Spirit Airlines) is a multi-stop service on 5 routes, busiest Houston to Fort Lauderdale. Of 222 departures recorded from October 2024 to April 2026, 62.2% 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 2025Departures 2026Change vs last year
January825▲ 212.5%
February–24–
March–31–
April–13–
May–––
June–––
July13––
August7––
September–––
October––in progress
November–––
December24––

according to the US BTS · October 2024 → 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 periods8 periods
PeriodOn time 2025On time 2026Change vs last year
January37.5%78.3%▲ 108.7%
February–54.2%–
March–13.6%–
April–41.7%–
May–––
June–––
July61.5%––
August85.7%––
September–––
October––in progress
November–––
December52.2%––

according to the US BTS · October 2024 → April 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → April 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods8 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January02–
February–0–
March–9–
April–1–
May–––
June–––
July0––
August0––
September–––
October––in progress
November–––
December1––

according to the US BTS · October 2024 → 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 94.1% 209
  • Cancelled 5.9% 13

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Apr 13, 2026

On time, leg by leg

  1. IAH–FLL85 76.5%
  2. ATL–IAH85 48.0%
  3. EWR–CHS31 53.3%

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
October 2024 19 19 89.5% 0
November 2024 29 29 89.7% 0
December 2024 29 29 65.5% 0
January 2025 8 8 37.5% 0
July 2025 13 13 61.5% 0
August 2025 7 7 85.7% 0
December 2025 24 23 52.2% 1
January 2026 25 23 78.3% 2
February 2026 24 24 54.2% 0
March 2026 31 22 13.6% 9
April 2026 13 12 41.7% 1

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