UA2621

UA2621 (United Airlines) is a multi-stop service on 14 routes, busiest Houston to Austin. Of 904 departures recorded from October 2024 to July 2026, 73.4% 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%
March31310.0%
April30300.0%
May3831▼ 18.4%
June5730▼ 47.4%
July6031▼ 48.3%
August57––
September67––
October87–in progress
November29––
December42––
Year to date (Jan–Jul)275217▼ 21.1%

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
January77.4%80.6%▲ 4.1%
February89.3%85.7%▼ 4.0%
March61.3%76.7%▲ 25.1%
April73.3%73.3%0.0%
May62.2%58.1%▼ 6.6%
June61.4%73.3%▲ 19.4%
July56.7%67.7%▲ 19.5%
August72.7%––
September80.6%––
October83.9%–in progress
November58.6%––
December69.1%––
Year-to-date average (Jan–Jul)68.8%73.6%▲ 7.0%

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–
March01–
April00–
May10▼ 100.0%
June00–
July00–
August2––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)110.0%

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 99.6% 900
  • Cancelled 0.4% 4

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

On time, leg by leg

  1. IAH–AUS491 67.5%
  2. ORD–IAH68 77.9%
  3. MIA–ORD67 89.6%
  4. SFO–IAH37 86.5%
  5. ORD–CLT37 86.5%
  6. ORD–SLC36 77.8%
  7. DCA–IAH35 60.0%
  8. SJC–ORD31 93.6%

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

Legs flown under this number

8
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 40 40 87.5% 0
November 2024 58 58 84.5% 0
December 2024 32 32 71.9% 0
January 2025 31 31 77.4% 0
February 2025 28 28 89.3% 0
March 2025 31 31 61.3% 0
April 2025 30 30 73.3% 0
May 2025 38 37 62.2% 1
June 2025 57 57 61.4% 0
July 2025 60 60 56.7% 0
August 2025 57 55 72.7% 2
September 2025 67 67 80.6% 0
October 2025 87 87 83.9% 0
November 2025 29 29 58.6% 0
December 2025 42 42 69.1% 0
January 2026 36 36 80.6% 0
February 2026 28 28 85.7% 0
March 2026 31 30 76.7% 1
April 2026 30 30 73.3% 0
May 2026 31 31 58.1% 0
June 2026 30 30 73.3% 0
July 2026 31 31 67.7% 0

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