OO5140

OO5140 (SkyWest Airlines) is a multi-stop service on 4 routes, busiest Chicago to Hancock. Of 652 departures recorded from October 2024 to July 2026, 69.9% 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
January31310.0%
February1228▲ 133.3%
March2032▲ 60.0%
April30300.0%
May5231▼ 40.4%
June30300.0%
July31310.0%
August31––
September30––
October31–in progress
November29––
December31––
Year to date (Jan–Jul)206213▲ 3.4%

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
January75.0%79.3%▲ 5.7%
February60.0%66.7%▲ 11.1%
March85.0%57.1%▼ 32.8%
April75.9%68.0%▼ 10.4%
May80.0%73.3%▼ 8.3%
June33.3%80.8%▲ 142.3%
July40.0%60.7%▲ 51.8%
August60.0%––
September80.0%––
October90.3%–in progress
November84.0%––
December53.3%––
Year-to-date average (Jan–Jul)64.2%69.4%▲ 8.2%

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
January32▼ 33.3%
February21▼ 50.0%
March04–
April15▲ 400.0%
May21▼ 50.0%
June04–
July13▲ 200.0%
August1––
September0––
October0–in progress
November4––
December1––
Year to date (Jan–Jul)920▲ 122.2%

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 94.3% 615
  • Cancelled 5.7% 37

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

Legs flown under this number

1
RoutesDistance (km)Avg delay On timeDepartures
ORD CMX Chicago O'Hare International Airport – Houghton County Memorial Airport 579 53.5 min 68.9% 612
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 90.0% 0
November 2024 30 30 76.7% 0
December 2024 31 29 69.0% 2
January 2025 31 28 75.0% 3
February 2025 12 10 60.0% 2
March 2025 20 20 85.0% 0
April 2025 30 29 75.9% 1
May 2025 52 50 80.0% 2
June 2025 30 30 33.3% 0
July 2025 31 30 40.0% 1
August 2025 31 30 60.0% 1
September 2025 30 30 80.0% 0
October 2025 31 31 90.3% 0
November 2025 29 25 84.0% 4
December 2025 31 30 53.3% 1
January 2026 31 29 79.3% 2
February 2026 28 27 66.7% 1
March 2026 32 28 57.1% 4
April 2026 30 25 68.0% 5
May 2026 31 30 73.3% 1
June 2026 30 26 80.8% 4
July 2026 31 28 60.7% 3

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