NK151

NK151 (Spirit Airlines) is a multi-stop service on 5 routes, busiest Las Vegas to Portland. Of 165 departures recorded from November 2024 to January 2026, 75.0% 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 periods6 periods
PeriodDepartures 2025Departures 2026Change vs last year
January317▼ 77.4%
February28––
March3––
April–––
May–––
June–––
July–––
August–––
September–––
October––in progress
November29––
December30––
Year to date (Jan–Jan)317▼ 77.4%

according to the US BTS · November 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 periods6 periods
PeriodOn time 2025On time 2026Change vs last year
January83.3%60.0%▼ 28.0%
February88.9%––
March100.0%––
April–––
May–––
June–––
July–––
August–––
September–––
October––in progress
November53.6%––
December63.3%––
Year-to-date average (Jan–Jan)83.3%60.0%▼ 28.0%

according to the US BTS · November 2024 → January 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · November 2024 → January 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods6 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January12▲ 100.0%
February1––
March0––
April–––
May–––
June–––
July–––
August–––
September–––
October––in progress
November1––
December0––
Year to date (Jan–Jan)12▲ 100.0%

according to the US BTS · November 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 97.0% 160
  • Cancelled 3.0% 5

Share of all recorded flights in the period, all legs. · Nov 8, 2024 → Jan 7, 2026

On time, leg by leg

  1. LAS–PDX54 86.8%
  2. IND–TPA45 84.1%
  3. FLL–ATL35 66.7%
  4. ATL–LAX30 48.3%

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

Legs flown under this number

4
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
November 2024 14 14 92.9% 0
December 2024 23 23 78.3% 0
January 2025 31 30 83.3% 1
February 2025 28 27 88.9% 1
March 2025 3 3 100.0% 0
November 2025 29 28 53.6% 1
December 2025 30 30 63.3% 0
January 2026 7 5 60.0% 2

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