UA1770

UA1770 (United Airlines) is a multi-stop service on 13 routes, busiest Denver to Grand Rapids. Of 752 departures recorded from October 2024 to July 2026, 74.0% 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
January3127▼ 12.9%
February2838▲ 35.7%
March3145▲ 45.2%
April3019▼ 36.7%
May3146▲ 48.4%
June4451▲ 15.9%
July3154▲ 74.2%
August31––
September30––
October31–in progress
November30––
December29––
Year to date (Jan–Jul)226280▲ 23.9%

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
January64.5%80.8%▲ 25.2%
February85.7%83.8%▼ 2.3%
March83.9%72.7%▼ 13.3%
April66.7%94.7%▲ 42.1%
May64.5%67.4%▲ 4.4%
June81.8%60.8%▼ 25.7%
July37.9%61.1%▲ 61.1%
August74.2%––
September70.0%––
October87.1%–in progress
November96.7%––
December72.4%––
Year-to-date average (Jan–Jul)69.3%74.5%▲ 7.5%

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
January01–
February01–
March01–
April00–
May00–
June00–
July20▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)23▲ 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 99.3% 747
  • 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–GRR220 67.9%
  2. DEN–PDX127 68.5%
  3. JAX–DEN108 76.9%
  4. LGA–DEN77 81.1%
  5. MCO–DEN72 68.1%
  6. JAX–EWR37 97.3%
  7. AUS–DEN35 97.1%

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

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 35 35 88.6% 0
November 2024 29 29 79.3% 0
December 2024 31 31 77.4% 0
January 2025 31 31 64.5% 0
February 2025 28 28 85.7% 0
March 2025 31 31 83.9% 0
April 2025 30 30 66.7% 0
May 2025 31 31 64.5% 0
June 2025 44 44 81.8% 0
July 2025 31 29 37.9% 2
August 2025 31 31 74.2% 0
September 2025 30 30 70.0% 0
October 2025 31 31 87.1% 0
November 2025 30 30 96.7% 0
December 2025 29 29 72.4% 0
January 2026 27 26 80.8% 1
February 2026 38 37 83.8% 1
March 2026 45 44 72.7% 1
April 2026 19 19 94.7% 0
May 2026 46 46 67.4% 0
June 2026 51 51 60.8% 0
July 2026 54 54 61.1% 0

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