UA1421

UA1421 (United Airlines) is a multi-stop service on 10 routes, busiest Chicago to Fort Lauderdale. Of 804 departures recorded from October 2024 to July 2026, 95.3% 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
January2936▲ 24.1%
February2023▲ 15.0%
March2954▲ 86.2%
April3059▲ 96.7%
May3137▲ 19.4%
June3060▲ 100.0%
July3162▲ 100.0%
August31––
September29––
October31–in progress
November30––
December45––
Year to date (Jan–Jul)200331▲ 65.5%

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
January86.2%88.9%▲ 3.1%
February100.0%95.7%▼ 4.3%
March96.6%88.7%▼ 8.2%
April96.7%96.6%▼ 0.1%
May96.8%97.3%▲ 0.5%
June100.0%100.0%0.0%
July100.0%95.2%▼ 4.8%
August100.0%––
September96.6%––
October96.8%–in progress
November96.7%––
December91.1%––
Year-to-date average (Jan–Jul)96.6%94.6%▼ 2.1%

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–
March01–
April00–
May00–
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)110.0%

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 99.8% 802
  • Cancelled 0.2% 2

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026

On time, leg by leg

  1. ORD–FLL601 97.0%
  2. FLL–IAD128 92.2%

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

Legs flown under this number

2
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 33 33 97.0% 0
November 2024 30 30 96.7% 0
December 2024 44 44 88.6% 0
January 2025 29 29 86.2% 0
February 2025 20 20 100.0% 0
March 2025 29 29 96.6% 0
April 2025 30 30 96.7% 0
May 2025 31 31 96.8% 0
June 2025 30 30 100.0% 0
July 2025 31 30 100.0% 1
August 2025 31 31 100.0% 0
September 2025 29 29 96.6% 0
October 2025 31 31 96.8% 0
November 2025 30 30 96.7% 0
December 2025 45 45 91.1% 0
January 2026 36 36 88.9% 0
February 2026 23 23 95.7% 0
March 2026 54 53 88.7% 1
April 2026 59 59 96.6% 0
May 2026 37 37 97.3% 0
June 2026 60 60 100.0% 0
July 2026 62 62 95.2% 0

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