UA1819

UA1819 (United Airlines) is a multi-stop service on 23 routes, busiest Chicago to Grand Rapids. Of 1,052 departures recorded from October 2024 to July 2026, 71.9% 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
January31310.0%
February2845▲ 60.7%
March5564▲ 16.4%
April3089▲ 196.7%
May6130▼ 50.8%
June5854▼ 6.9%
July5331▼ 41.5%
August39––
September60––
October62–in progress
November53––
December46––
Year to date (Jan–Jul)316344▲ 8.9%

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%74.2%▼ 17.9%
February78.6%66.7%▼ 15.1%
March65.5%60.7%▼ 7.3%
April90.0%75.9%▼ 15.7%
May75.4%86.7%▲ 14.9%
June53.6%64.2%▲ 19.7%
July50.0%67.7%▲ 35.5%
August75.7%––
September73.3%––
October82.3%–in progress
November69.2%––
December64.4%––
Year-to-date average (Jan–Jul)71.9%70.8%▼ 1.5%

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
January00–
February00–
March03–
April02–
May00–
June21▼ 50.0%
July50▼ 100.0%
August2––
September0––
October0–in progress
November1––
December1––
Year to date (Jan–Jul)76▼ 14.3%

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 98.2% 1,033
  • Cancelled 1.8% 19

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

On time, leg by leg

  1. ORD–GRR360 62.9%
  2. DEN–IAH86 78.6%
  3. TPA–ORD68 89.7%
  4. DEN–ORD56 83.9%
  5. DJT–ORD54 66.7%
  6. EWR–DJT53 88.7%
  7. LGA–ORD48 56.8%
  8. GRR–ORD45 65.9%

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 25 25 72.0% 0
November 2024 58 57 75.4% 1
December 2024 49 48 91.7% 1
January 2025 31 31 90.3% 0
February 2025 28 28 78.6% 0
March 2025 55 55 65.5% 0
April 2025 30 30 90.0% 0
May 2025 61 61 75.4% 0
June 2025 58 56 53.6% 2
July 2025 53 48 50.0% 5
August 2025 39 37 75.7% 2
September 2025 60 60 73.3% 0
October 2025 62 62 82.3% 0
November 2025 53 52 69.2% 1
December 2025 46 45 64.4% 1
January 2026 31 31 74.2% 0
February 2026 45 45 66.7% 0
March 2026 64 61 60.7% 3
April 2026 89 87 75.9% 2
May 2026 30 30 86.7% 0
June 2026 54 53 64.2% 1
July 2026 31 31 67.7% 0

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