UA1841

UA1841 (United Airlines) is a multi-stop service on 15 routes, busiest Sacramento to Denver. Of 715 departures recorded from October 2024 to July 2026, 80.6% 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
January3432▼ 5.9%
February3821▼ 44.7%
March4917▼ 65.3%
April3418▼ 47.1%
May4421▼ 52.3%
June6023▼ 61.7%
July5931▼ 47.5%
August57––
September29––
October22–in progress
November24––
December35––
Year to date (Jan–Jul)318163▼ 48.7%

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
January94.1%86.7%▼ 7.9%
February86.8%76.2%▼ 12.3%
March85.7%94.1%▲ 9.8%
April85.3%88.9%▲ 4.2%
May75.0%90.0%▲ 20.0%
June73.3%73.9%▲ 0.8%
July64.4%74.2%▲ 15.2%
August80.4%––
September75.9%––
October95.5%–in progress
November91.3%––
December71.4%––
Year-to-date average (Jan–Jul)80.7%83.4%▲ 3.4%

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
January02–
February00–
March00–
April00–
May01–
June00–
July00–
August1––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)03

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. SMF–DEN380 78.0%
  2. DEN–BWI146 81.5%
  3. LAX–PHX37 91.9%
  4. LAS–EWR36 82.4%

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

Legs flown under this number

4
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 17 17 82.4% 0
November 2024 21 21 95.2% 0
December 2024 29 29 72.4% 0
January 2025 34 34 94.1% 0
February 2025 38 38 86.8% 0
March 2025 49 49 85.7% 0
April 2025 34 34 85.3% 0
May 2025 44 44 75.0% 0
June 2025 60 60 73.3% 0
July 2025 59 59 64.4% 0
August 2025 57 56 80.4% 1
September 2025 29 29 75.9% 0
October 2025 22 22 95.5% 0
November 2025 24 23 91.3% 1
December 2025 35 35 71.4% 0
January 2026 32 30 86.7% 2
February 2026 21 21 76.2% 0
March 2026 17 17 94.1% 0
April 2026 18 18 88.9% 0
May 2026 21 20 90.0% 1
June 2026 23 23 73.9% 0
July 2026 31 31 74.2% 0

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