NK1641

NK1641 (Spirit Airlines) is a multi-stop service on 3 routes, busiest Los Angeles to Las Vegas. Of 157 departures recorded from January 2025 to April 2026, 86.4% 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 periods9 periods
PeriodDepartures 2025Departures 2026Change vs last year
January1424▲ 71.4%
February2328▲ 21.7%
March431▲ 675.0%
April–13–
May–––
June–––
July13––
August7––
September–––
October––in progress
November–––
December–––

according to the US BTS · January 2025 → 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 periods9 periods
PeriodOn time 2025On time 2026Change vs last year
January100.0%87.5%▼ 12.5%
February91.3%78.6%▼ 13.9%
March100.0%93.6%▼ 6.5%
April–81.8%–
May–––
June–––
July61.5%––
August83.3%––
September–––
October––in progress
November–––
December–––

according to the US BTS · January 2025 → April 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · January 2025 → April 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods9 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February00–
March00–
April–2–
May–––
June–––
July0––
August1––
September–––
October––in progress
November–––
December–––

according to the US BTS · January 2025 → 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 98.1% 154
  • Cancelled 1.9% 3

Share of all recorded flights in the period, all legs. · Jan 9, 2025 → Apr 13, 2026

On time, leg by leg

  1. LAX–LAS96 86.2%
  2. LAS–SAN41 95.1%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
LAX LAS Los Angeles International Airport – Harry Reid International Airport 380 6.5 min 86.2% 96
LAS SAN Harry Reid International Airport – San Diego International Airport 417 1.2 min 95.1% 41
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
January 2025 14 14 100.0% 0
February 2025 23 23 91.3% 0
March 2025 4 4 100.0% 0
July 2025 13 13 61.5% 0
August 2025 7 6 83.3% 1
January 2026 24 24 87.5% 0
February 2026 28 28 78.6% 0
March 2026 31 31 93.6% 0
April 2026 13 11 81.8% 2

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