UA1453

UA1453 (United Airlines) is a multi-stop service on 9 routes, busiest San Francisco to Dulles. Of 947 departures recorded from October 2024 to July 2026, 78.3% 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
January5662▲ 10.7%
February4035▼ 12.5%
March3150▲ 61.3%
April3060▲ 100.0%
May3142▲ 35.5%
June3060▲ 100.0%
July3161▲ 96.8%
August37––
September43––
October35–in progress
November50––
December45––
Year to date (Jan–Jul)249370▲ 48.6%

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
January91.1%82.0%▼ 10.0%
February87.5%80.0%▼ 8.6%
March96.8%88.0%▼ 9.1%
April93.3%71.7%▼ 23.2%
May66.7%64.3%▼ 3.6%
June53.3%60.7%▲ 13.8%
July58.1%59.0%▲ 1.7%
August81.1%––
September90.7%––
October82.9%–in progress
November78.0%––
December72.7%––
Year-to-date average (Jan–Jul)78.1%72.2%▼ 7.5%

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
January01–
February00–
March00–
April00–
May10▼ 100.0%
June04–
July00–
August0––
September0––
October0–in progress
November0––
December1––
Year to date (Jan–Jul)15▲ 400.0%

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 99.3% 940
  • Cancelled 0.7% 7

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

On time, leg by leg

  1. SFO–IAD285 78.2%
  2. BUR–SFO275 71.9%
  3. CLT–EWR185 92.9%
  4. DEN–BDL54 64.8%
  5. SAV–EWR37 94.6%
  6. EWR–RSW37 83.8%
  7. EWR–MCO37 81.1%
  8. DEN–IAD35 45.7%

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 25 25 92.0% 0
November 2024 60 60 88.3% 0
December 2024 33 33 93.9% 0
January 2025 56 56 91.1% 0
February 2025 40 40 87.5% 0
March 2025 31 31 96.8% 0
April 2025 30 30 93.3% 0
May 2025 31 30 66.7% 1
June 2025 30 30 53.3% 0
July 2025 31 31 58.1% 0
August 2025 37 37 81.1% 0
September 2025 43 43 90.7% 0
October 2025 35 35 82.9% 0
November 2025 50 50 78.0% 0
December 2025 45 44 72.7% 1
January 2026 62 61 82.0% 1
February 2026 35 35 80.0% 0
March 2026 50 50 88.0% 0
April 2026 60 60 71.7% 0
May 2026 42 42 64.3% 0
June 2026 60 56 60.7% 4
July 2026 61 61 59.0% 0

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