UA652

UA652 (United Airlines) is a multi-stop service on 5 routes, busiest Denver to St Louis. Of 695 departures recorded from October 2024 to July 2026, 89.3% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January31310.0%
February28280.0%
March31310.0%
April30300.0%
May31310.0%
June30300.0%
July31310.0%
August31––
September30––
October31–in progress
November30––
December31––
Year to date (Jan–Jul)2122120.0%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January90.0%83.3%▼ 7.4%
February100.0%92.9%▼ 7.1%
March80.7%74.2%▼ 8.0%
April93.3%93.3%0.0%
May96.8%90.3%▼ 6.7%
June93.3%89.7%▼ 3.9%
July74.2%90.3%▲ 21.7%
August71.0%––
September93.3%––
October100.0%–in progress
November80.0%––
December87.1%––
Year-to-date average (Jan–Jul)89.8%87.7%▼ 2.3%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January110.0%
February00–
March00–
April00–
May00–
June01–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)12▲ 100.0%

according to the US BTS · October 2024 → July 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 99.6% 692
  • Cancelled 0.4% 3

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

On time, leg by leg

  1. DEN–STL630 88.7%
  2. ONT–DEN37 100.0%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
DEN STL Denver International Airport – St. Louis Lambert International Airport 1,236 4.3 min 88.7% 630
ONT DEN Ontario International Airport – Denver International Airport 1,316 -6.2 min 100.0% 37
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 25 25 96.0% 0
November 2024 60 60 96.7% 0
December 2024 33 33 93.9% 0
January 2025 31 30 90.0% 1
February 2025 28 28 100.0% 0
March 2025 31 31 80.7% 0
April 2025 30 30 93.3% 0
May 2025 31 31 96.8% 0
June 2025 30 30 93.3% 0
July 2025 31 31 74.2% 0
August 2025 31 31 71.0% 0
September 2025 30 30 93.3% 0
October 2025 31 31 100.0% 0
November 2025 30 30 80.0% 0
December 2025 31 31 87.1% 0
January 2026 31 30 83.3% 1
February 2026 28 28 92.9% 0
March 2026 31 31 74.2% 0
April 2026 30 30 93.3% 0
May 2026 31 31 90.3% 0
June 2026 30 29 89.7% 1
July 2026 31 31 90.3% 0

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