UA2451

UA2451 (United Airlines) is a multi-stop service on 14 routes, busiest Houston to Orlando. Of 970 departures recorded from October 2024 to July 2026, 80.9% 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
January3136▲ 16.1%
February28280.0%
March5554▼ 1.8%
April30300.0%
May5129▼ 43.1%
June8533▼ 61.2%
July6283▲ 33.9%
August62––
September54––
October37–in progress
November60––
December46––
Year to date (Jan–Jul)342293▼ 14.3%

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
January87.1%88.9%▲ 2.1%
February67.9%85.7%▲ 26.3%
March74.6%76.9%▲ 3.2%
April83.3%80.0%▼ 4.0%
May84.0%82.8%▼ 1.5%
June79.8%66.7%▼ 16.4%
July79.0%82.7%▲ 4.7%
August75.4%––
September88.9%––
October73.0%–in progress
November85.0%––
December78.3%––
Year-to-date average (Jan–Jul)79.4%80.5%▲ 1.4%

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–
March02–
April00–
May10▼ 100.0%
June10▼ 100.0%
July02–
August1––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)24▲ 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 99.3% 963
  • Cancelled 0.7% 7

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

On time, leg by leg

  1. IAH–MCO495 74.8%
  2. LGA–IAH126 85.6%
  3. SJC–ORD37 97.1%
  4. ORD–IAH37 83.8%
  5. ORD–IAD37 89.2%
  6. EWR–IAH37 89.2%
  7. TUS–IAH36 86.1%
  8. MCO–IAH36 86.1%

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

Legs flown under this number

9
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 95.0% 0
November 2024 29 29 86.2% 0
December 2024 27 27 88.9% 0
January 2025 31 31 87.1% 0
February 2025 28 28 67.9% 0
March 2025 55 55 74.6% 0
April 2025 30 30 83.3% 0
May 2025 51 50 84.0% 1
June 2025 85 84 79.8% 1
July 2025 62 62 79.0% 0
August 2025 62 61 75.4% 1
September 2025 54 54 88.9% 0
October 2025 37 37 73.0% 0
November 2025 60 60 85.0% 0
December 2025 46 46 78.3% 0
January 2026 36 36 88.9% 0
February 2026 28 28 85.7% 0
March 2026 54 52 76.9% 2
April 2026 30 30 80.0% 0
May 2026 29 29 82.8% 0
June 2026 33 33 66.7% 0
July 2026 83 81 82.7% 2

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