UA2339

UA2339 (United Airlines) is a multi-stop service on 10 routes, busiest Houston to Las Vegas. Of 932 departures recorded from October 2024 to July 2026, 78.6% 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
January3745▲ 21.6%
February3150▲ 61.3%
March3162▲ 100.0%
April3060▲ 100.0%
May5259▲ 13.5%
June3056▲ 86.7%
July3158▲ 87.1%
August44––
September52––
October24–in progress
November30––
December28––
Year to date (Jan–Jul)242390▲ 61.2%

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
January86.5%88.4%▲ 2.2%
February87.1%82.0%▼ 5.9%
March83.9%76.7%▼ 8.6%
April86.7%73.3%▼ 15.4%
May75.0%83.1%▲ 10.7%
June58.6%58.9%▲ 0.5%
July71.0%74.1%▲ 4.5%
August81.8%––
September82.7%––
October70.8%–in progress
November76.7%––
December78.6%––
Year-to-date average (Jan–Jul)78.4%76.6%▼ 2.2%

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
January02–
February00–
March02–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)14▲ 300.0%

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% 925
  • Cancelled 0.8% 7

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

On time, leg by leg

  1. IAH–LAS378 76.4%
  2. BNA–IAH195 76.4%
  3. IAH–DEN170 73.5%
  4. SFO–SEA37 86.5%
  5. DFW–IAH37 86.1%
  6. DEN–SFO37 91.9%
  7. LAS–LAX36 88.6%

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

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 30 29 75.9% 1
November 2024 59 58 87.9% 1
December 2024 33 33 90.9% 0
January 2025 37 37 86.5% 0
February 2025 31 31 87.1% 0
March 2025 31 31 83.9% 0
April 2025 30 30 86.7% 0
May 2025 52 52 75.0% 0
June 2025 30 29 58.6% 1
July 2025 31 31 71.0% 0
August 2025 44 44 81.8% 0
September 2025 52 52 82.7% 0
October 2025 24 24 70.8% 0
November 2025 30 30 76.7% 0
December 2025 28 28 78.6% 0
January 2026 45 43 88.4% 2
February 2026 50 50 82.0% 0
March 2026 62 60 76.7% 2
April 2026 60 60 73.3% 0
May 2026 59 59 83.1% 0
June 2026 56 56 58.9% 0
July 2026 58 58 74.1% 0

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