UA2297

UA2297 (United Airlines) is a multi-stop service on 11 routes, busiest Boston to Denver. Of 739 departures recorded from October 2024 to July 2026, 86.0% 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
January31310.0%
February28280.0%
March31310.0%
April30300.0%
May31310.0%
June3530▼ 14.3%
July6030▼ 50.0%
August31––
September30––
October35–in progress
November51––
December32––
Year to date (Jan–Jul)246211▼ 14.2%

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
January90.0%96.6%▲ 7.3%
February89.3%92.6%▲ 3.7%
March96.8%90.3%▼ 6.7%
April93.3%96.7%▲ 3.6%
May72.4%100.0%▲ 38.1%
June60.0%90.0%▲ 50.0%
July71.7%96.7%▲ 34.9%
August83.9%––
September83.3%––
October77.1%–in progress
November84.3%––
December81.3%––
Year-to-date average (Jan–Jul)81.9%94.7%▲ 15.6%

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
January12▲ 100.0%
February01–
March00–
April00–
May20▼ 100.0%
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)330.0%

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 99.2% 733
  • Cancelled 0.8% 6

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

On time, leg by leg

  1. BOS–DEN399 89.7%
  2. MCO–DEN114 93.8%
  3. ORD–DEN35 82.9%
  4. DEN–ORF35 52.9%
  5. DEN–LAX34 55.9%

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 34 34 88.2% 0
November 2024 22 22 86.4% 0
December 2024 47 47 89.4% 0
January 2025 31 30 90.0% 1
February 2025 28 28 89.3% 0
March 2025 31 31 96.8% 0
April 2025 30 30 93.3% 0
May 2025 31 29 72.4% 2
June 2025 35 35 60.0% 0
July 2025 60 60 71.7% 0
August 2025 31 31 83.9% 0
September 2025 30 30 83.3% 0
October 2025 35 35 77.1% 0
November 2025 51 51 84.3% 0
December 2025 32 32 81.3% 0
January 2026 31 29 96.6% 2
February 2026 28 27 92.6% 1
March 2026 31 31 90.3% 0
April 2026 30 30 96.7% 0
May 2026 31 31 100.0% 0
June 2026 30 30 90.0% 0
July 2026 30 30 96.7% 0

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