UA2859

UA2859 (United Airlines) is a multi-stop service on 13 routes, busiest Denver to Eagle. Of 806 departures recorded from October 2024 to July 2026, 74.7% 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%
March35350.0%
April7630▼ 60.5%
May31310.0%
June3430▼ 11.8%
July5830▼ 48.3%
August49––
September30––
October31–in progress
November29––
December63––
Year to date (Jan–Jul)293232▼ 20.8%

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
January77.4%87.1%▲ 12.5%
February88.9%77.3%▼ 13.1%
March79.4%74.3%▼ 6.4%
April93.4%90.0%▼ 3.7%
May83.9%67.7%▼ 19.2%
June52.9%60.0%▲ 13.3%
July55.2%63.3%▲ 14.8%
August55.1%––
September76.7%––
October77.4%–in progress
November82.8%––
December74.6%––
Year-to-date average (Jan–Jul)75.9%74.2%▼ 2.1%

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
January00–
February110.0%
March10▼ 100.0%
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)21▼ 50.0%

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% 803
  • 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–EGE434 69.5%
  2. DTW–SFO97 87.4%
  3. ORD–MSY53 96.2%
  4. SEA–DEN46 65.2%
  5. ORD–CVG37 81.1%
  6. MSY–IAH32 90.6%

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 20 20 100.0% 0
November 2024 30 30 76.7% 0
December 2024 29 29 62.1% 0
January 2025 31 31 77.4% 0
February 2025 28 27 88.9% 1
March 2025 35 34 79.4% 1
April 2025 76 76 93.4% 0
May 2025 31 31 83.9% 0
June 2025 34 34 52.9% 0
July 2025 58 58 55.2% 0
August 2025 49 49 55.1% 0
September 2025 30 30 76.7% 0
October 2025 31 31 77.4% 0
November 2025 29 29 82.8% 0
December 2025 63 63 74.6% 0
January 2026 31 31 87.1% 0
February 2026 45 44 77.3% 1
March 2026 35 35 74.3% 0
April 2026 30 30 90.0% 0
May 2026 31 31 67.7% 0
June 2026 30 30 60.0% 0
July 2026 30 30 63.3% 0

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