UA1966

UA1966 (United Airlines) is a multi-stop service on 15 routes, busiest Austin to Houston. Of 1,001 departures recorded from October 2024 to July 2026, 93.7% 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
January3158▲ 87.1%
February2250▲ 127.3%
March5260▲ 15.4%
April3060▲ 100.0%
May4157▲ 39.0%
June3448▲ 41.2%
July5758▲ 1.8%
August46––
September36––
October62–in progress
November59––
December46––
Year to date (Jan–Jul)267391▲ 46.4%

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
January92.9%92.7%▼ 0.1%
February100.0%96.0%▼ 4.0%
March94.2%91.4%▼ 3.0%
April96.7%91.7%▼ 5.2%
May90.2%90.7%▲ 0.6%
June97.1%93.8%▼ 3.4%
July93.0%98.3%▲ 5.7%
August86.7%––
September91.7%––
October95.2%–in progress
November94.9%––
December93.5%––
Year-to-date average (Jan–Jul)94.9%93.5%▼ 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
January330.0%
February00–
March02–
April00–
May03–
June00–
July00–
August1––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)38▲ 166.7%

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 98.8% 989
  • Cancelled 1.2% 12

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

On time, leg by leg

  1. AUS–IAH583 95.3%
  2. IAH–MIA153 92.1%
  3. IAH–LGA136 90.4%
  4. IAH–DEN53 88.7%
  5. IAH–SAT36 100.0%

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 33 33 97.0% 0
November 2024 28 28 100.0% 0
December 2024 33 33 90.9% 0
January 2025 31 28 92.9% 3
February 2025 22 22 100.0% 0
March 2025 52 52 94.2% 0
April 2025 30 30 96.7% 0
May 2025 41 41 90.2% 0
June 2025 34 34 97.1% 0
July 2025 57 57 93.0% 0
August 2025 46 45 86.7% 1
September 2025 36 36 91.7% 0
October 2025 62 62 95.2% 0
November 2025 59 59 94.9% 0
December 2025 46 46 93.5% 0
January 2026 58 55 92.7% 3
February 2026 50 50 96.0% 0
March 2026 60 58 91.4% 2
April 2026 60 60 91.7% 0
May 2026 57 54 90.7% 3
June 2026 48 48 93.8% 0
July 2026 58 58 98.3% 0

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