UA1933

UA1933 (United Airlines) is a multi-stop service on 11 routes, busiest Chicago to Las Vegas. Of 715 departures recorded from October 2024 to July 2026, 85.8% 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
January5331▼ 41.5%
February3828▼ 26.3%
March3155▲ 77.4%
April30300.0%
May3128▼ 9.7%
June3019▼ 36.7%
July31310.0%
August31––
September30––
October31–in progress
November30––
December31––
Year to date (Jan–Jul)244222▼ 9.0%

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
January86.8%67.7%▼ 21.9%
February83.8%92.9%▲ 10.8%
March93.6%80.0%▼ 14.5%
April96.7%86.7%▼ 10.3%
May90.3%85.7%▼ 5.1%
June83.3%79.0%▼ 5.3%
July90.0%96.4%▲ 7.1%
August87.1%––
September90.0%––
October64.5%–in progress
November86.7%––
December83.9%––
Year-to-date average (Jan–Jul)89.2%84.1%▼ 5.8%

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–
February10▼ 100.0%
March00–
April00–
May00–
June00–
July13▲ 200.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)23▲ 50.0%

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% 710
  • Cancelled 0.7% 5

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

On time, leg by leg

  1. ORD–LAS378 87.5%
  2. LAS–EWR124 80.7%
  3. OMA–ORD88 95.3%
  4. EWR–ORF39 84.2%
  5. IAH–LAX33 84.9%
  6. EWR–IAH31 64.5%

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 35 35 88.6% 0
November 2024 30 30 93.3% 0
December 2024 31 31 83.9% 0
January 2025 53 53 86.8% 0
February 2025 38 37 83.8% 1
March 2025 31 31 93.6% 0
April 2025 30 30 96.7% 0
May 2025 31 31 90.3% 0
June 2025 30 30 83.3% 0
July 2025 31 30 90.0% 1
August 2025 31 31 87.1% 0
September 2025 30 30 90.0% 0
October 2025 31 31 64.5% 0
November 2025 30 30 86.7% 0
December 2025 31 31 83.9% 0
January 2026 31 31 67.7% 0
February 2026 28 28 92.9% 0
March 2026 55 55 80.0% 0
April 2026 30 30 86.7% 0
May 2026 28 28 85.7% 0
June 2026 19 19 79.0% 0
July 2026 31 28 96.4% 3

How to read this chart

Loading the guide…