UA1623

UA1623 (United Airlines) is a multi-stop service on 18 routes, busiest Cleveland to Dulles. Of 766 departures recorded from October 2024 to July 2026, 78.4% 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
January3126▼ 16.1%
February2627▲ 3.8%
March3021▼ 30.0%
April3026▼ 13.3%
May6139▼ 36.1%
June5366▲ 24.5%
July1793▲ 447.1%
August30––
September29––
October27–in progress
November24––
December30––
Year to date (Jan–Jul)248298▲ 20.2%

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
January90.3%76.0%▼ 15.9%
February69.2%81.5%▲ 17.7%
March76.7%90.5%▲ 18.0%
April80.0%80.8%▲ 1.0%
May85.3%89.7%▲ 5.3%
June75.5%87.7%▲ 16.2%
July56.3%67.1%▲ 19.2%
August83.3%––
September72.4%––
October92.6%–in progress
November87.5%––
December66.7%––
Year-to-date average (Jan–Jul)76.2%81.9%▲ 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–
May00–
June01–
July15▲ 400.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)17▲ 600.0%

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 99.0% 758
  • Cancelled 1.0% 8

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

On time, leg by leg

  1. CLE–IAD205 79.3%
  2. RAP–ORD72 69.0%
  3. DEN–RAP72 94.4%
  4. STL–EWR67 67.2%
  5. LAX–RNO57 93.0%
  6. SLC–EWR37 75.7%
  7. ORD–LGA37 53.1%
  8. SJC–DEN35 80.0%

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

Legs flown under this number

10
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 85.0% 0
November 2024 29 29 62.1% 0
December 2024 31 31 67.7% 0
January 2025 31 31 90.3% 0
February 2025 26 26 69.2% 0
March 2025 30 30 76.7% 0
April 2025 30 30 80.0% 0
May 2025 61 61 85.3% 0
June 2025 53 53 75.5% 0
July 2025 17 16 56.3% 1
August 2025 30 30 83.3% 0
September 2025 29 29 72.4% 0
October 2025 27 27 92.6% 0
November 2025 24 24 87.5% 0
December 2025 30 30 66.7% 0
January 2026 26 25 76.0% 1
February 2026 27 27 81.5% 0
March 2026 21 21 90.5% 0
April 2026 26 26 80.8% 0
May 2026 39 39 89.7% 0
June 2026 66 65 87.7% 1
July 2026 93 88 67.1% 5

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