Frontier Airlines in September 2025

79.2%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 September 2025, Frontier Airlines (F9) reported 14,896 scheduled domestic flights. 79.2% arrived on time, 0.3% were cancelled and 0.2% diverted.

All reporting carriers together recorded 82.8% on time and 0.5% cancelled that month, so the carrier was 3.6 points below the combined figure.

A year earlier, in September 2024, it reported 17,491 flights with 74.8% on time: a change of +4.4 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, air carrier 30% and national aviation system 18%.

On time 79.2%
Arrived 15+ minutes late 20.3%
Cancelled 0.3%
Diverted 0.2%

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

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

Measure	Sep 2025	Sep 2024	F9, 12 months to Jul 2026	All carriers, Sep 2025
Arrived on time	79.2%	74.8%	71.6%	82.8%
Departed on time	79.6%	76.7%	72.3%	83.1%
Cancelled	0.3%	1.6%	1.9%	0.5%
Average arrival delay	5.7 min	8.3 min	13.3 min	2.3 min
Scheduled flights a day	497	583	574	18,748
Scheduled flights	14,896	17,491	209,405	562,439

83 airports and 613 routes had F9 flights that month.

Busiest airports that month

Airport	Departures	On time	Avg arrival delay	Cancelled
DEN Denver	1,864	77.7%	6.0 min	0.1%
ATL Atlanta	1,369	78.2%	6.8 min	0.0%
MCO Orlando	1,047	87.1%	-6.9 min	0.0%
LAS Las Vegas	934	77.8%	6.2 min	0.7%
DFW Dallas/Fort Worth	737	76.4%	13.6 min	0.8%
PHL Philadelphia	638	80.6%	3.6 min	0.0%
PHX Phoenix	536	80.0%	7.9 min	0.9%
TPA Tampa	475	89.5%	-6.1 min	0.2%
LAX Los Angeles	449	71.5%	15.4 min	0.7%
CLE Cleveland	448	86.6%	-2.4 min	0.4%
RDU Raleigh/Durham	334	79.3%	-2.8 min	0.9%
ORD Chicago	333	76.9%	18.0 min	1.2%
IAH Houston	309	81.9%	4.7 min	0.0%
JFK New York	290	81.0%	4.1 min	0.0%
MIA Miami	284	84.9%	-1.9 min	0.0%

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), September 2025.

Delay causes

BTS cause category	Share of delay minutes	All carriers, Sep 2025	Minutes
Air carrier	29.8%	34.3%	70,731
Late-arriving aircraft	48.3%	37.4%	114,598
National Aviation System	17.5%	22.6%	41,601
Extreme weather	4.3%	5.6%	10,254
Security	0.0%	0.1%	0

237,184 delay minutes on 3,020 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 September 2025?

79.2% of 14,896 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 82.8% that month.

How does that compare with a year earlier?

In September 2024 the carrier reported 17,491 flights with 74.8% on time and 1.6% cancelled, against 79.2% and 0.3% in September 2025.

Provenance

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