NK391

NK391 (Spirit Airlines) is a multi-stop service on 8 routes, busiest New Orleans to Chicago. Of 295 departures recorded from October 2024 to May 2026, 79.2% 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 periods12 periods
PeriodDepartures 2025Departures 2026Change vs last year
January30300.0%
February28280.0%
March2931▲ 6.9%
April2124▲ 14.3%
May31▼ 66.7%
June–––
July–––
August–––
September–––
October––in progress
November3––
December29––
Year to date (Jan–May)111114▲ 2.7%

according to the US BTS · October 2024 → May 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 periods11 periods
PeriodOn time 2025On time 2026Change vs last year
January90.0%85.2%▼ 5.3%
February96.3%88.9%▼ 7.7%
March79.3%65.4%▼ 17.6%
April81.0%63.6%▼ 21.4%
May66.7%––
June–––
July–––
August–––
September–––
October––in progress
November33.3%––
December61.5%––
Year-to-date average (Jan–Apr)86.6%75.8%▼ 12.5%

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 periods12 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January03–
February110.0%
March05–
April02–
May01–
June–––
July–––
August–––
September–––
October––in progress
November0––
December3––
Year to date (Jan–May)112▲ 1,100.0%

according to the US BTS · October 2024 → May 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 94.6% 279
  • Cancelled 5.4% 16

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → May 1, 2026

On time, leg by leg

  1. MSY–ORD107 75.8%
  2. BNA–FLL54 98.1%
  3. LAS–SAT49 77.6%
  4. DTW–LGA35 65.6%
  5. DTW–MSP30 76.7%

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

Legs flown under this number

5
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 11 11 81.8% 0
November 2024 5 5 80.0% 0
December 2024 22 22 81.8% 0
January 2025 30 30 90.0% 0
February 2025 28 27 96.3% 1
March 2025 29 29 79.3% 0
April 2025 21 21 81.0% 0
May 2025 3 3 66.7% 0
November 2025 3 3 33.3% 0
December 2025 29 26 61.5% 3
January 2026 30 27 85.2% 3
February 2026 28 27 88.9% 1
March 2026 31 26 65.4% 5
April 2026 24 22 63.6% 2
May 2026 1 0 — 1

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