UA2855

UA2855 (United Airlines) is a multi-stop service on 13 routes, busiest San Francisco to Houston. Of 1,035 departures recorded from October 2024 to July 2026, 84.1% 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
January3129▼ 6.5%
February44440.0%
March3862▲ 63.2%
April5660▲ 7.1%
May4140▼ 2.4%
June6052▼ 13.3%
July62620.0%
August59––
September57––
October60–in progress
November49––
December48––
Year to date (Jan–Jul)332349▲ 5.1%

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
January83.9%79.3%▼ 5.4%
February77.3%84.1%▲ 8.8%
March81.6%80.3%▼ 1.5%
April94.6%85.0%▼ 10.2%
May92.7%82.5%▼ 11.0%
June90.0%78.9%▼ 12.4%
July72.6%74.2%▲ 2.2%
August88.1%––
September87.7%––
October86.7%–in progress
November87.8%––
December81.3%––
Year-to-date average (Jan–Jul)84.7%80.6%▼ 4.8%

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–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)01

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% 1,034
  • 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. SFO–IAH348 85.3%
  2. SAN–SFO219 85.4%
  3. MCO–SFO139 92.0%
  4. EWR–SFO77 76.6%
  5. SFO–ORD57 71.9%
  6. SFO–LAS37 73.0%
  7. SEA–IAD37 100.0%
  8. SFO–SAN35 57.1%

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 85.0% 0
November 2024 30 30 100.0% 0
December 2024 31 31 83.9% 0
January 2025 31 31 83.9% 0
February 2025 44 44 77.3% 0
March 2025 38 38 81.6% 0
April 2025 56 56 94.6% 0
May 2025 41 41 92.7% 0
June 2025 60 60 90.0% 0
July 2025 62 62 72.6% 0
August 2025 59 59 88.1% 0
September 2025 57 57 87.7% 0
October 2025 60 60 86.7% 0
November 2025 49 49 87.8% 0
December 2025 48 48 81.3% 0
January 2026 29 29 79.3% 0
February 2026 44 44 84.1% 0
March 2026 62 61 80.3% 1
April 2026 60 60 85.0% 0
May 2026 40 40 82.5% 0
June 2026 52 52 78.9% 0
July 2026 62 62 74.2% 0

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