UA2279

UA2279 (United Airlines) is a multi-stop service on 18 routes, busiest San Francisco to Seattle. Of 988 departures recorded from October 2024 to July 2026, 75.5% 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
January3180▲ 158.1%
February2860▲ 114.3%
March2561▲ 144.0%
April3060▲ 100.0%
May4051▲ 27.5%
June6034▼ 43.3%
July61610.0%
August31––
September30––
October37–in progress
November54––
December58––
Year to date (Jan–Jul)275407▲ 48.0%

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
January83.3%81.8%▼ 1.8%
February64.3%87.9%▲ 36.8%
March64.0%88.5%▲ 38.3%
April46.7%80.0%▲ 71.4%
May87.5%62.8%▼ 28.3%
June83.1%61.8%▼ 25.6%
July40.7%55.7%▲ 36.8%
August67.7%––
September100.0%––
October91.9%–in progress
November87.0%––
December72.4%––
Year-to-date average (Jan–Jul)67.1%74.1%▲ 10.4%

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
January13▲ 200.0%
February02–
March00–
April00–
May00–
June10▼ 100.0%
July70▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)95▼ 44.4%

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 98.6% 974
  • Cancelled 1.4% 14

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

On time, leg by leg

  1. SFO–SEA265 76.6%
  2. BOS–SFO144 84.3%
  3. EWR–DJT100 69.7%
  4. RNO–SFO77 76.6%
  5. DJT–EWR54 44.0%
  6. EWR–IAD49 53.3%
  7. EWR–BOS41 87.5%
  8. PDX–SFO35 48.6%

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

Legs flown under this number

12
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 35 35 85.7% 0
November 2024 30 30 93.3% 0
December 2024 31 31 67.7% 0
January 2025 31 30 83.3% 1
February 2025 28 28 64.3% 0
March 2025 25 25 64.0% 0
April 2025 30 30 46.7% 0
May 2025 40 40 87.5% 0
June 2025 60 59 83.1% 1
July 2025 61 54 40.7% 7
August 2025 31 31 67.7% 0
September 2025 30 30 100.0% 0
October 2025 37 37 91.9% 0
November 2025 54 54 87.0% 0
December 2025 58 58 72.4% 0
January 2026 80 77 81.8% 3
February 2026 60 58 87.9% 2
March 2026 61 61 88.5% 0
April 2026 60 60 80.0% 0
May 2026 51 51 62.8% 0
June 2026 34 34 61.8% 0
July 2026 61 61 55.7% 0

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