Spirit Airlines in May 2025

73.9%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 May 2025, Spirit Airlines (NK) reported 17,744 scheduled domestic flights. 73.9% arrived on time, 1.2% were cancelled and 0.2% diverted.

All reporting carriers together recorded 75.4% on time and 1.0% cancelled that month, so the carrier was 1.5 points below the combined figure.

A year earlier, in May 2024, it reported 23,298 flights with 71.9% on time: a change of +2.0 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 58%, late-arriving aircraft 21% and air carrier 18%.

On time 73.9%
Arrived 15+ minutes late 24.6%
Cancelled 1.2%
Diverted 0.2%

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

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

Measure	May 2025	May 2024	NK, 12 months to Jul 2026	All carriers, May 2025
Arrived on time	73.9%	71.9%	69.8%	75.4%
Departed on time	75.1%	71.7%	69.6%	76.7%
Cancelled	1.2%	1.1%	3.9%	1.0%
Average arrival delay	11.9 min	13.1 min	12.2 min	10.2 min
Scheduled flights a day	592	777	321	20,188
Scheduled flights	17,744	23,298	117,136	605,648

60 airports and 595 routes had NK flights that month.

Busiest airports that month

Airport	Departures	On time	Avg arrival delay	Cancelled
LAS Las Vegas	1,792	82.8%	1.5 min	0.9%
FLL Fort Lauderdale	1,714	74.3%	8.6 min	0.4%
MCO Orlando	1,658	68.8%	18.1 min	0.8%
DTW Detroit	835	77.5%	7.7 min	0.6%
ATL Atlanta	826	62.6%	21.0 min	0.6%
EWR Newark	726	51.8%	44.4 min	6.6%
IAH Houston	667	74.1%	14.0 min	1.0%
LAX Los Angeles	635	85.5%	-0.1 min	0.3%
DFW Dallas/Fort Worth	622	71.2%	14.4 min	0.3%
ORD Chicago	537	76.7%	6.5 min	0.6%
BWI Baltimore	521	69.5%	16.1 min	1.0%
MSY New Orleans	432	71.5%	14.6 min	1.6%
LGA New York	427	78.7%	8.7 min	1.4%
TPA Tampa	408	76.0%	13.1 min	0.0%
MYR Myrtle Beach	400	75.8%	14.9 min	2.3%

By scheduled departure hour

100

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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	All carriers, May 2025	Minutes
Air carrier	18.4%	29.3%	62,719
Late-arriving aircraft	20.9%	37.8%	71,459
National Aviation System	57.6%	25.9%	196,521
Extreme weather	2.9%	6.9%	9,745
Security	0.3%	0.1%	942

341,386 delay minutes on 4,365 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 May 2025?

73.9% of 17,744 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 75.4% that month.

How does that compare with a year earlier?

In May 2024 the carrier reported 23,298 flights with 71.9% on time and 1.1% cancelled, against 73.9% and 1.2% in May 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 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.