Frontier Airlines in May 2025

68.6%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, Frontier Airlines (F9) reported 16,036 scheduled domestic flights. 68.6% arrived on time, 1.0% 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 6.8 points below the combined figure.

A year earlier, in May 2024, it reported 18,647 flights with 63.6% on time: a change of +5.0 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, air carrier 25% and national aviation system 20%.

On time 68.6%
Arrived 15+ minutes late 30.2%
Cancelled 1.0%
Diverted 0.2%

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

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

Measure	May 2025	May 2024	F9, 12 months to Jul 2026	All carriers, May 2025
Arrived on time	68.6%	63.6%	71.6%	75.4%
Departed on time	69.0%	65.4%	72.3%	76.7%
Cancelled	1.0%	2.6%	1.9%	1.0%
Average arrival delay	19.6 min	20.9 min	13.3 min	10.2 min
Scheduled flights a day	535	622	574	20,188
Scheduled flights	16,036	18,647	209,405	605,648

87 airports and 655 routes had F9 flights that month.

Busiest airports that month

Airport	Departures	On time	Avg arrival delay	Cancelled
DEN Denver	1,785	71.3%	14.3 min	1.0%
MCO Orlando	1,445	73.0%	12.0 min	0.4%
ATL Atlanta	1,272	55.7%	42.0 min	1.6%
LAS Las Vegas	1,104	76.3%	8.5 min	0.6%
PHL Philadelphia	752	60.6%	24.2 min	0.9%
DFW Dallas/Fort Worth	694	68.6%	18.8 min	1.6%
TPA Tampa	620	70.5%	13.9 min	1.5%
PHX Phoenix	595	76.6%	11.5 min	0.5%
CLE Cleveland	511	75.9%	8.4 min	0.2%
SJU San Juan	497	72.4%	10.4 min	0.2%
LAX Los Angeles	441	66.4%	20.4 min	1.6%
SFO San Francisco	362	68.2%	19.3 min	1.1%
RDU Raleigh/Durham	346	72.3%	21.3 min	0.3%
IAH Houston	314	57.0%	45.1 min	1.0%
MIA Miami	313	74.4%	14.8 min	0.3%

By scheduled departure hour

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

Share of F9 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	24.8%	29.3%	107,120
Late-arriving aircraft	50.1%	37.8%	216,234
National Aviation System	19.9%	25.9%	85,757
Extreme weather	5.3%	6.9%	22,835
Security	0.0%	0.1%	0

431,946 delay minutes on 4,841 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 Frontier Airlines flights were on time in May 2025?

68.6% of 16,036 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 18,647 flights with 63.6% on time and 2.6% cancelled, against 68.6% and 1.0% 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 Frontier Airlines · methodology · corrections.