On-Time Report

Airlines › United Airlines › June 2026

Carrier month · June 2026

United Airlines in June 2026

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 June 2026, United Airlines (UA) reported 72,791 scheduled domestic flights. 73.9% arrived on time, 0.6% were cancelled and 0.4% diverted.

All reporting carriers together recorded 72.8% on time and 1.6% cancelled that month, so the carrier was 1.1 points above the combined figure.

A year earlier, in June 2025, it reported 66,324 flights with 72.7% on time: a change of +1.2 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 37%, national aviation system 36% and air carrier 23%.

Every scheduled domestic flight reported by United Airlines in June 2026.

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

MeasureJun 2026Jun 2025UA, 12 months to Jul 2026All carriers, Jun 2026
Arrived on time73.9%72.7%78.2%72.8%
Departed on time76.9%76.2%80.6%72.2%
Cancelled0.6%0.7%1.0%1.6%
Average arrival delay11.7 min13.6 min6.3 min11.7 min
Scheduled flights a day2,4262,2112,26220,253
Scheduled flights72,79166,324825,693607,577

131 airports and 880 routes had UA flights that month.

Busiest airports that month

AirportDeparturesOn timeAvg arrival delayCancelled
DEN Denver9,69470.3%14.2 min0.1%
ORD Chicago9,28471.3%14.7 min1.3%
IAH Houston6,15269.6%14.8 min0.1%
SFO San Francisco5,69974.4%7.2 min0.2%
EWR Newark5,57775.9%8.8 min0.6%
IAD Washington3,16278.3%8.3 min0.6%
LAX Los Angeles2,64280.8%1.6 min0.2%
BOS Boston1,21773.9%12.5 min1.1%
MCO Orlando1,16178.5%7.4 min0.3%
LAS Las Vegas1,15072.9%11.2 min0.2%
SAN San Diego92876.3%5.5 min0.2%
SEA Seattle91572.6%9.1 min0.5%
DFW Dallas/Fort Worth91367.3%22.5 min0.8%
AUS Austin87175.3%10.4 min0.5%
LGA New York81866.4%22.1 min2.7%

By scheduled departure hour

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 2026.

Delay causes

BTS cause categoryShare of delay minutesAll carriers, Jun 2026Minutes
Air carrier23.1%30.8%317,808
Late-arriving aircraft36.9%42.1%507,176
National Aviation System35.7%20.3%490,164
Extreme weather4.3%6.7%59,457
Security0.0%0.1%80
1,374,685 delay minutes on 18,224 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← May 2026July 2026 →

Questions and answers

What share of United Airlines flights were on time in June 2026?

73.9% of 72,791 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 72.8% that month.

How does that compare with a year earlier?

In June 2025 the carrier reported 66,324 flights with 72.7% on time and 0.7% cancelled, against 73.9% and 0.6% in June 2026.

Provenance

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