United Airlines in June 2025

72.7%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 June 2025, United Airlines (UA) reported 66,324 scheduled domestic flights. 72.7% arrived on time, 0.7% were cancelled and 0.5% diverted.

All reporting carriers together recorded 70.3% on time and 1.6% cancelled that month, so the carrier was 2.4 points above the combined figure.

A year earlier, in June 2024, it reported 63,005 flights with 74.6% on time: a change of −1.9 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 37%, national aviation system 31% and air carrier 25%.

On time 72.7%
Arrived 15+ minutes late 26.1%
Cancelled 0.7%
Diverted 0.5%

Every scheduled domestic flight reported by United Airlines in June 2025.

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

Measure	Jun 2025	Jun 2024	UA, 12 months to Jul 2026	All carriers, Jun 2025
Arrived on time	72.7%	74.6%	78.2%	70.3%
Departed on time	76.2%	75.7%	80.6%	71.4%
Cancelled	0.7%	1.2%	1.0%	1.6%
Average arrival delay	13.6 min	10.9 min	6.3 min	15.6 min
Scheduled flights a day	2,211	2,100	2,262	20,386
Scheduled flights	66,324	63,005	825,693	611,575

123 airports and 813 routes had UA flights that month.

Busiest airports that month

Airport	Departures	On time	Avg arrival delay	Cancelled
DEN Denver	9,181	66.8%	18.4 min	0.3%
ORD Chicago	8,116	73.4%	11.3 min	0.3%
IAH Houston	5,971	63.9%	23.2 min	1.8%
SFO San Francisco	4,994	80.5%	3.6 min	0.3%
EWR Newark	4,747	71.4%	15.1 min	0.8%
IAD Washington	3,036	70.8%	18.6 min	0.3%
LAX Los Angeles	2,419	82.1%	0.3 min	0.4%
LAS Las Vegas	1,172	77.7%	5.0 min	0.5%
MCO Orlando	1,137	72.9%	15.0 min	0.5%
BOS Boston	1,111	74.6%	10.6 min	0.4%
SEA Seattle	918	76.8%	7.3 min	0.8%
SAN San Diego	888	78.2%	6.3 min	0.2%
LGA New York	808	65.5%	22.4 min	2.0%
AUS Austin	803	71.4%	17.0 min	1.4%
DFW Dallas/Fort Worth	786	65.3%	21.7 min	1.1%

By scheduled departure hour

100

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

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

Delay causes

BTS cause category	Share of delay minutes	All carriers, Jun 2025	Minutes
Air carrier	24.7%	31.6%	330,250
Late-arriving aircraft	37.3%	40.6%	499,912
National Aviation System	31.1%	20.9%	416,238
Extreme weather	6.9%	6.9%	91,957
Security	0.0%	0.2%	118

1,338,475 delay minutes on 17,326 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 United Airlines flights were on time in June 2025?

72.7% of 66,324 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 70.3% that month.

How does that compare with a year earlier?

In June 2024 the carrier reported 63,005 flights with 74.6% on time and 1.2% cancelled, against 72.7% and 0.7% in June 2025.

Provenance

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