UA1520

UA1520 (United Airlines) is a multi-stop service on 5 routes, busiest Orlando to Denver. Of 805 departures recorded from October 2024 to July 2026, 89.8% 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%
March5534▼ 38.2%
April3060▲ 100.0%
May3751▲ 37.8%
June30300.0%
July31310.0%
August31––
September36––
October61–in progress
November58––
December32––
Year to date (Jan–Jul)242265▲ 9.5%

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
January83.9%100.0%▲ 19.2%
February85.7%89.3%▲ 4.2%
March94.6%85.3%▼ 9.8%
April90.0%98.3%▲ 9.3%
May81.1%92.2%▲ 13.7%
June86.2%90.0%▲ 4.4%
July83.9%93.6%▲ 11.5%
August80.7%––
September94.4%––
October95.1%–in progress
November87.9%––
December93.8%––
Year-to-date average (Jan–Jul)86.5%92.7%▲ 7.2%

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–
February00–
March00–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)10▼ 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 99.9% 804
  • Cancelled 0.1% 1

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

On time, leg by leg

  1. MCO–DEN635 89.3%
  2. EWR–MCO84 100.0%
  3. IAD–MCO45 91.1%
  4. DEN–BDL35 82.9%

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

Legs flown under this number

4
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 85.0% 0
November 2024 29 29 86.2% 0
December 2024 31 31 80.7% 0
January 2025 31 31 83.9% 0
February 2025 28 28 85.7% 0
March 2025 55 55 94.6% 0
April 2025 30 30 90.0% 0
May 2025 37 37 81.1% 0
June 2025 30 29 86.2% 1
July 2025 31 31 83.9% 0
August 2025 31 31 80.7% 0
September 2025 36 36 94.4% 0
October 2025 61 61 95.1% 0
November 2025 58 58 87.9% 0
December 2025 32 32 93.8% 0
January 2026 31 31 100.0% 0
February 2026 28 28 89.3% 0
March 2026 34 34 85.3% 0
April 2026 60 60 98.3% 0
May 2026 51 51 92.2% 0
June 2026 30 30 90.0% 0
July 2026 31 31 93.6% 0

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