On-Time Report

Airlines › Frontier Airlines › May 2026

Carrier month · May 2026

Frontier Airlines in May 2026

76.1%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 2026, Frontier Airlines (F9) reported 18,423 scheduled domestic flights. 76.1% arrived on time, 0.5% were cancelled and 0.2% diverted.

All reporting carriers together recorded 77.6% on time and 0.9% cancelled that month, so the carrier was 1.5 points below the combined figure.

A year earlier, in May 2025, it reported 16,036 flights with 68.6% on time: a change of +7.5 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 53%, air carrier 23% and national aviation system 22%.

Every scheduled domestic flight reported by Frontier Airlines in May 2026.

May 2026 against a year earlier, the carrier's year and all carriers

MeasureMay 2026May 2025F9, 12 months to Jul 2026All carriers, May 2026
Arrived on time76.1%68.6%71.6%77.6%
Departed on time76.6%69.0%72.3%77.1%
Cancelled0.5%1.0%1.9%0.9%
Average arrival delay8.2 min19.6 min13.3 min6.2 min
Scheduled flights a day61453557420,391
Scheduled flights18,42316,036209,405611,735

79 airports and 596 routes had F9 flights that month.

Busiest airports that month

AirportDeparturesOn timeAvg arrival delayCancelled
ATL Atlanta2,01866.6%18.7 min0.6%
DEN Denver1,97079.6%2.5 min0.2%
MCO Orlando1,62586.0%-4.0 min0.2%
LAS Las Vegas1,15976.8%6.3 min0.4%
DFW Dallas/Fort Worth1,06876.1%7.4 min1.1%
PHL Philadelphia77577.9%3.8 min0.3%
CLE Cleveland60882.1%3.7 min0.7%
IAH Houston56471.1%16.3 min0.0%
PHX Phoenix56177.5%10.1 min0.4%
TPA Tampa53977.4%8.3 min0.4%
LAX Los Angeles51375.6%10.5 min0.2%
SJU San Juan45783.4%2.3 min0.0%
RDU Raleigh/Durham38976.1%13.3 min0.3%
FLL Fort Lauderdale37566.7%18.1 min0.5%
SFO San Francisco36157.1%26.7 min1.7%

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 2026.

Delay causes

BTS cause categoryShare of delay minutesAll carriers, May 2026Minutes
Air carrier23.4%33.0%77,033
Late-arriving aircraft52.5%40.4%172,306
National Aviation System21.7%20.5%71,444
Extreme weather2.3%6.0%7,718
Security0.0%0.1%0
328,501 delay minutes on 4,268 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← April 2026June 2026 →

Questions and answers

What share of Frontier Airlines flights were on time in May 2026?

76.1% of 18,423 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 77.6% that month.

How does that compare with a year earlier?

In May 2025 the carrier reported 16,036 flights with 68.6% on time and 1.0% cancelled, against 76.1% and 0.5% in May 2026.

Provenance

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