UA2853

UA2853 (United Airlines) is a multi-stop service on 9 routes, busiest San Antonio to Denver. Of 810 departures recorded from October 2024 to July 2026, 84.3% 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
January3136▲ 16.1%
February28280.0%
March31310.0%
April3031▲ 3.3%
May3162▲ 100.0%
June3060▲ 100.0%
July3162▲ 100.0%
August44––
September54––
October31–in progress
November30––
December45––
Year to date (Jan–Jul)212310▲ 46.2%

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
January82.1%85.3%▲ 3.8%
February89.3%92.6%▲ 3.7%
March87.1%77.4%▼ 11.1%
April82.8%100.0%▲ 20.8%
May83.9%88.7%▲ 5.8%
June66.7%78.0%▲ 16.9%
July67.7%72.1%▲ 6.5%
August93.0%––
September96.3%––
October87.1%–in progress
November86.7%––
December84.4%––
Year-to-date average (Jan–Jul)79.9%84.9%▲ 6.2%

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
January32▼ 33.3%
February01–
March00–
April10▼ 100.0%
May00–
June01–
July01–
August1––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)45▲ 25.0%

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 98.8% 800
  • Cancelled 1.2% 10

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

On time, leg by leg

  1. SAT–DEN316 87.5%
  2. DFW–DEN208 81.3%
  3. DEN–IAD161 83.2%
  4. ORD–PDX37 94.6%
  5. DEN–EWR35 74.3%

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

Legs flown under this number

5
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 100.0% 0
November 2024 32 32 93.8% 0
December 2024 32 32 65.6% 0
January 2025 31 28 82.1% 3
February 2025 28 28 89.3% 0
March 2025 31 31 87.1% 0
April 2025 30 29 82.8% 1
May 2025 31 31 83.9% 0
June 2025 30 30 66.7% 0
July 2025 31 31 67.7% 0
August 2025 44 43 93.0% 1
September 2025 54 54 96.3% 0
October 2025 31 31 87.1% 0
November 2025 30 30 86.7% 0
December 2025 45 45 84.4% 0
January 2026 36 34 85.3% 2
February 2026 28 27 92.6% 1
March 2026 31 31 77.4% 0
April 2026 31 31 100.0% 0
May 2026 62 62 88.7% 0
June 2026 60 59 78.0% 1
July 2026 62 61 72.1% 1

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