UA1209

UA1209 (United Airlines) is a multi-stop service on 11 routes, busiest Chicago to Newark. Of 823 departures recorded from October 2024 to July 2026, 70.6% 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
January3118▼ 41.9%
February28280.0%
March3135▲ 12.9%
April3056▲ 86.7%
May3172▲ 132.3%
June4030▼ 25.0%
July3130▼ 3.2%
August43––
September40––
October58–in progress
November50––
December60––
Year to date (Jan–Jul)222269▲ 21.2%

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
January83.3%61.1%▼ 26.7%
February89.3%60.0%▼ 32.8%
March77.4%60.6%▼ 21.7%
April66.7%70.4%▲ 5.5%
May58.1%73.2%▲ 26.1%
June80.0%53.3%▼ 33.3%
July96.8%50.0%▼ 48.3%
August58.1%––
September62.5%––
October77.6%–in progress
November63.0%––
December57.6%––
Year-to-date average (Jan–Jul)78.8%61.2%▼ 22.3%

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
January10▼ 100.0%
February03–
March02–
April02–
May01–
June00–
July04–
August0––
September0––
October0–in progress
November4––
December1––
Year to date (Jan–Jul)112▲ 1,100.0%

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 97.8% 805
  • Cancelled 2.2% 18

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

On time, leg by leg

  1. ORD–EWR351 56.5%
  2. DEN–BNA169 86.3%
  3. PDX–ORD71 94.4%
  4. MCI–ORD58 73.2%
  5. PHL–ORD40 67.5%
  6. LGA–ORD37 68.6%
  7. LAS–ORD31 90.3%

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 20 20 80.0% 0
November 2024 30 30 93.3% 0
December 2024 31 31 87.1% 0
January 2025 31 30 83.3% 1
February 2025 28 28 89.3% 0
March 2025 31 31 77.4% 0
April 2025 30 30 66.7% 0
May 2025 31 31 58.1% 0
June 2025 40 40 80.0% 0
July 2025 31 31 96.8% 0
August 2025 43 43 58.1% 0
September 2025 40 40 62.5% 0
October 2025 58 58 77.6% 0
November 2025 50 46 63.0% 4
December 2025 60 59 57.6% 1
January 2026 18 18 61.1% 0
February 2026 28 25 60.0% 3
March 2026 35 33 60.6% 2
April 2026 56 54 70.4% 2
May 2026 72 71 73.2% 1
June 2026 30 30 53.3% 0
July 2026 30 26 50.0% 4

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