UA1153

UA1153 (United Airlines) is a multi-stop service on 11 routes, busiest Denver to El Paso. Of 739 departures recorded from October 2024 to July 2026, 78.3% 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%
February2845▲ 60.7%
March3235▲ 9.4%
April6030▼ 50.0%
May31310.0%
June30300.0%
July31310.0%
August31––
September24––
October12–in progress
November58––
December48––
Year to date (Jan–Jul)243233▼ 4.1%

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
January83.3%74.2%▼ 11.0%
February71.4%80.0%▲ 12.0%
March71.9%85.7%▲ 19.2%
April67.8%93.3%▲ 37.7%
May80.7%93.6%▲ 16.0%
June80.0%90.0%▲ 12.5%
July38.7%83.9%▲ 116.7%
August55.2%––
September75.0%––
October75.0%–in progress
November82.8%––
December81.3%––
Year-to-date average (Jan–Jul)70.5%85.8%▲ 21.6%

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
January10▼ 100.0%
February00–
March00–
April10▼ 100.0%
May00–
June00–
July00–
August2––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)20▼ 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 99.3% 734
  • Cancelled 0.7% 5

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

On time, leg by leg

  1. DEN–ELP348 70.8%
  2. BZN–DEN89 86.4%
  3. DJT–EWR77 89.6%
  4. ANC–DEN72 87.5%
  5. PHX–SFO35 85.7%
  6. RNO–DEN31 70.0%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 30 30 80.0% 0
November 2024 29 29 89.7% 0
December 2024 31 30 90.0% 1
January 2025 31 30 83.3% 1
February 2025 28 28 71.4% 0
March 2025 32 32 71.9% 0
April 2025 60 59 67.8% 1
May 2025 31 31 80.7% 0
June 2025 30 30 80.0% 0
July 2025 31 31 38.7% 0
August 2025 31 29 55.2% 2
September 2025 24 24 75.0% 0
October 2025 12 12 75.0% 0
November 2025 58 58 82.8% 0
December 2025 48 48 81.3% 0
January 2026 31 31 74.2% 0
February 2026 45 45 80.0% 0
March 2026 35 35 85.7% 0
April 2026 30 30 93.3% 0
May 2026 31 31 93.6% 0
June 2026 30 30 90.0% 0
July 2026 31 31 83.9% 0

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