OO4642

OO4642 (SkyWest Airlines) is a multi-stop service on 10 routes, busiest Bismarck to Denver. Of 629 departures recorded from October 2024 to July 2026, 69.5% 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
January3122▼ 29.0%
February2818▼ 35.7%
March3130▼ 3.2%
April30300.0%
May3129▼ 6.5%
June30300.0%
July31310.0%
August31––
September26––
October31–in progress
November27––
December31––
Year to date (Jan–Jul)212190▼ 10.4%

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
January56.7%90.9%▲ 60.4%
February63.0%94.4%▲ 50.0%
March64.5%56.0%▼ 13.2%
April60.0%75.0%▲ 25.0%
May56.7%82.8%▲ 46.0%
June42.9%96.7%▲ 125.5%
July58.1%93.6%▲ 61.1%
August38.7%––
September61.5%––
October74.2%–in progress
November96.0%––
December54.8%––
Year-to-date average (Jan–Jul)57.4%84.2%▲ 46.7%

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
January10▼ 100.0%
February10▼ 100.0%
March05–
April02–
May10▼ 100.0%
June20▼ 100.0%
July00–
August0––
September0––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)57▲ 40.0%

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 97.6% 614
  • Cancelled 2.4% 15

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

On time, leg by leg

  1. BIS–DEN436 62.9%
  2. AUS–LAX72 94.4%
  3. ATW–ORD67 63.9%
  4. LAX–SAN36 100.0%

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 20 20 95.0% 0
November 2024 30 29 69.0% 1
December 2024 31 31 74.2% 0
January 2025 31 30 56.7% 1
February 2025 28 27 63.0% 1
March 2025 31 31 64.5% 0
April 2025 30 30 60.0% 0
May 2025 31 30 56.7% 1
June 2025 30 28 42.9% 2
July 2025 31 31 58.1% 0
August 2025 31 31 38.7% 0
September 2025 26 26 61.5% 0
October 2025 31 31 74.2% 0
November 2025 27 25 96.0% 2
December 2025 31 31 54.8% 0
January 2026 22 22 90.9% 0
February 2026 18 18 94.4% 0
March 2026 30 25 56.0% 5
April 2026 30 28 75.0% 2
May 2026 29 29 82.8% 0
June 2026 30 30 96.7% 0
July 2026 31 31 93.6% 0

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