Spirit Airlines in December 2025

63.8%arrived on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In December 2025, Spirit Airlines (NK) reported 11,800 scheduled domestic flights. 63.8% arrived on time, 3.7% were cancelled and 0.1% diverted.

All reporting carriers together recorded 71.9% on time and 1.5% cancelled that month, so the carrier was 8.1 points below the combined figure.

A year earlier, in December 2024, it reported 18,662 flights with 77.1% on time: a change of −13.3 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 36%, late-arriving aircraft 32% and air carrier 31%.

On time 63.8%
Arrived 15+ minutes late 32.4%
Cancelled 3.7%
Diverted 0.1%

Every scheduled domestic flight reported by Spirit Airlines in December 2025.

December 2025 against a year earlier, the carrier's year and all carriers

Measure	Dec 2025	Dec 2024	NK, 12 months to Jul 2026	All carriers, Dec 2025
Arrived on time	63.8%	77.1%	69.8%	71.9%
Departed on time	62.4%	74.7%	69.6%	72.0%
Cancelled	3.7%	0.5%	3.9%	1.5%
Average arrival delay	19.4 min	6.7 min	12.2 min	13.0 min
Scheduled flights a day	393	622	321	19,410
Scheduled flights	11,800	18,662	117,136	582,304

51 airports and 352 routes had NK flights that month.

Busiest airports that month

Airport	Departures	On time	Avg arrival delay	Cancelled
FLL Fort Lauderdale	1,833	58.2%	22.3 min	2.9%
MCO Orlando	1,284	62.3%	18.7 min	4.0%
EWR Newark	789	54.0%	31.7 min	7.0%
DTW Detroit	732	61.3%	18.5 min	3.8%
LGA New York	554	57.4%	23.4 min	6.3%
IAH Houston	524	70.2%	14.3 min	1.5%
LAS Las Vegas	506	84.6%	1.1 min	1.6%
ATL Atlanta	492	67.7%	16.7 min	2.4%
ORD Chicago	428	51.2%	38.2 min	5.4%
DFW Dallas/Fort Worth	420	72.1%	13.8 min	1.9%
MIA Miami	363	58.1%	24.9 min	5.5%
LAX Los Angeles	350	68.6%	19.0 min	4.3%
SJU San Juan	298	71.1%	18.0 min	2.3%
TPA Tampa	282	66.0%	15.4 min	2.1%
CLT Charlotte	250	59.6%	23.7 min	4.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of NK flights that arrived on time, by scheduled departure hour (local time at each origin), December 2025.

Delay causes

BTS cause category	Share of delay minutes	All carriers, Dec 2025	Minutes
Air carrier	30.8%	33.3%	91,619
Late-arriving aircraft	31.5%	41.1%	93,646
National Aviation System	35.7%	19.1%	106,157
Extreme weather	1.6%	6.4%	4,771
Security	0.4%	0.2%	1,306

297,499 delay minutes on 3,821 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

What share of Spirit Airlines flights were on time in December 2025?

63.8% of 11,800 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 71.9% that month.

How does that compare with a year earlier?

In December 2024 the carrier reported 18,662 flights with 77.1% on time and 0.5% cancelled, against 63.8% and 3.7% in December 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2025; public domain. Domestic scheduled flights, totals and averages only. The site's data runs through July 2026. Full record for Spirit Airlines · methodology · corrections.