UA355

UA355 (United Airlines) is a multi-stop service on 20 routes, busiest Denver to Nashville. Of 743 departures recorded from October 2024 to July 2026, 87.6% 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
January2531▲ 24.0%
February2428▲ 16.7%
March3655▲ 52.8%
April3031▲ 3.3%
May2162▲ 195.2%
June559▲ 1,080.0%
July3158▲ 87.1%
August31––
September31––
October45–in progress
November30––
December31––
Year to date (Jan–Jul)172324▲ 88.4%

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
January78.3%79.3%▲ 1.3%
February75.0%92.9%▲ 23.8%
March63.9%92.7%▲ 45.1%
April82.8%93.6%▲ 13.0%
May81.0%88.3%▲ 9.1%
June80.0%89.7%▲ 12.1%
July87.1%93.1%▲ 6.9%
August96.8%––
September100.0%––
October95.6%–in progress
November93.3%––
December83.9%––
Year-to-date average (Jan–Jul)78.3%89.9%▲ 14.9%

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
January220.0%
February00–
March00–
April10▼ 100.0%
May02–
June01–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)35▲ 66.7%

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 98.9% 735
  • Cancelled 1.1% 8

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

On time, leg by leg

  1. DEN–BNA189 87.2%
  2. MCI–DEN148 95.2%
  3. DEN–BOI103 94.2%
  4. BUR–SFO91 70.8%
  5. BOS–IAH37 94.6%
  6. DEN–CID36 86.1%
  7. DEN–DFW32 90.6%

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

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 18 18 83.3% 0
November 2024 30 30 83.3% 0
December 2024 31 31 87.1% 0
January 2025 25 23 78.3% 2
February 2025 24 24 75.0% 0
March 2025 36 36 63.9% 0
April 2025 30 29 82.8% 1
May 2025 21 21 81.0% 0
June 2025 5 5 80.0% 0
July 2025 31 31 87.1% 0
August 2025 31 31 96.8% 0
September 2025 31 31 100.0% 0
October 2025 45 45 95.6% 0
November 2025 30 30 93.3% 0
December 2025 31 31 83.9% 0
January 2026 31 29 79.3% 2
February 2026 28 28 92.9% 0
March 2026 55 55 92.7% 0
April 2026 31 31 93.6% 0
May 2026 62 60 88.3% 2
June 2026 59 58 89.7% 1
July 2026 58 58 93.1% 0

How to read this chart

Loading the guide…