UA236

UA236 (United Airlines) is a multi-stop service on 19 routes, busiest Denver to Boise. Of 408 departures recorded from October 2024 to May 2026, 84.8% left on time, according to the US BTS.

Recorded departures by month

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

Months without data are left blank.

The most recent periods11 periods
PeriodDepartures 2025Departures 2026Change vs last year
January31310.0%
February28280.0%
March31310.0%
April30300.0%
May2120▼ 4.8%
June–––
July–––
August–––
September–––
October––in progress
November–––
December30––
Year to date (Jan–May)141140▼ 0.7%

according to the US BTS · October 2024 → May 2026

On-time departures by month

All legs combined

Months without data are left blank.

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

The most recent periods11 periods
PeriodOn time 2025On time 2026Change vs last year
January80.7%90.3%▲ 12.0%
February78.6%89.3%▲ 13.6%
March77.4%77.4%0.0%
April83.3%90.0%▲ 8.0%
May81.0%90.0%▲ 11.2%
June–––
July–––
August–––
September–––
October––in progress
November–––
December80.0%––
Year-to-date average (Jan–May)80.2%87.4%▲ 9.0%

according to the US BTS · October 2024 → May 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → May 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods11 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February00–
March00–
April00–
May00–
June–––
July–––
August–––
September–––
October––in progress
November–––
December0––
Year to date (Jan–May)00

according to the US BTS · October 2024 → May 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 100.0% 408
  • Cancelled 0.0% 0

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 20, 2026

On time, leg by leg

  1. DEN–IAH37 91.9%
  2. DEN–BOI37 78.4%
  3. CLE–MCO37 86.5%
  4. HNL–SFO32 84.4%
  5. BNA–IAH32 84.4%

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 80.0% 0
November 2024 30 30 90.0% 0
December 2024 47 47 93.6% 0
January 2025 31 31 80.7% 0
February 2025 28 28 78.6% 0
March 2025 31 31 77.4% 0
April 2025 30 30 83.3% 0
May 2025 21 21 81.0% 0
December 2025 30 30 80.0% 0
January 2026 31 31 90.3% 0
February 2026 28 28 89.3% 0
March 2026 31 31 77.4% 0
April 2026 30 30 90.0% 0
May 2026 20 20 90.0% 0

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