UA403

UA403 (United Airlines) is a multi-stop service on 14 routes, busiest Fort Lauderdale to Chicago. Of 902 departures recorded from October 2024 to July 2026, 72.9% 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
January3136▲ 16.1%
February28280.0%
March31310.0%
April3031▲ 3.3%
May6256▼ 9.7%
June6054▼ 10.0%
July31310.0%
August41––
September28––
October43–in progress
November88––
December43––
Year to date (Jan–Jul)273267▼ 2.2%

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
January77.4%71.4%▼ 7.7%
February66.7%64.3%▼ 3.6%
March63.3%73.3%▲ 15.8%
April96.7%77.4%▼ 19.9%
May72.6%67.9%▼ 6.5%
June63.3%55.6%▼ 12.3%
July74.2%58.1%▼ 21.7%
August73.2%––
September78.6%––
October83.3%–in progress
November70.1%––
December72.1%––
Year-to-date average (Jan–Jul)73.5%66.9%▼ 9.0%

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–
February10▼ 100.0%
March110.0%
April00–
May00–
June00–
July00–
August0––
September0––
October1–in progress
November1––
December0––
Year to date (Jan–Jul)220.0%

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% 896
  • Cancelled 0.7% 6

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

On time, leg by leg

  1. FLL–ORD444 72.0%
  2. EWR–FLL239 86.5%
  3. ORD–TUL35 45.7%
  4. ORD–SLC35 52.9%
  5. ORD–CMH35 42.9%
  6. ORD–SFO30 80.0%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 32 32 90.6% 0
November 2024 46 46 91.3% 0
December 2024 41 41 78.1% 0
January 2025 31 31 77.4% 0
February 2025 28 27 66.7% 1
March 2025 31 30 63.3% 1
April 2025 30 30 96.7% 0
May 2025 62 62 72.6% 0
June 2025 60 60 63.3% 0
July 2025 31 31 74.2% 0
August 2025 41 41 73.2% 0
September 2025 28 28 78.6% 0
October 2025 43 42 83.3% 1
November 2025 88 87 70.1% 1
December 2025 43 43 72.1% 0
January 2026 36 35 71.4% 1
February 2026 28 28 64.3% 0
March 2026 31 30 73.3% 1
April 2026 31 31 77.4% 0
May 2026 56 56 67.9% 0
June 2026 54 54 55.6% 0
July 2026 31 31 58.1% 0

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