OO5586

OO5586 (SkyWest Airlines) is a multi-stop service on 20 routes, busiest Chicago to Madison. Of 479 departures recorded from October 2024 to July 2026, 76.3% 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
January3027▼ 10.0%
February2620▼ 23.1%
March3024▼ 20.0%
April3025▼ 16.7%
May3028▼ 6.7%
June1327▲ 107.7%
July164▼ 75.0%
August14––
September5––
October10–in progress
November30––
December31––
Year to date (Jan–Jul)175155▼ 11.4%

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
January86.2%65.4%▼ 24.2%
February80.8%70.0%▼ 13.3%
March76.7%45.0%▼ 41.3%
April82.8%69.6%▼ 15.9%
May90.0%75.0%▼ 16.7%
June53.9%72.0%▲ 33.7%
July43.8%75.0%▲ 71.4%
August92.9%––
September80.0%––
October90.0%–in progress
November83.3%––
December80.7%––
Year-to-date average (Jan–Jul)73.4%67.4%▼ 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
January110.0%
February00–
March04–
April12▲ 100.0%
May00–
June02–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)29▲ 350.0%

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 97.7% 468
  • Cancelled 2.3% 11

Share of all recorded flights in the period, all legs. · Oct 14, 2024 → Jul 25, 2026

On time, leg by leg

  1. ORD–MSN128 73.2%
  2. MSN–ORD53 88.5%
  3. LAX–PSP53 84.9%
  4. ORD–FAR31 66.7%
  5. MSY–ORD30 71.4%

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

Legs flown under this number

5
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 12 12 100.0% 0
November 2024 19 19 89.5% 0
December 2024 28 28 71.4% 0
January 2025 30 29 86.2% 1
February 2025 26 26 80.8% 0
March 2025 30 30 76.7% 0
April 2025 30 29 82.8% 1
May 2025 30 30 90.0% 0
June 2025 13 13 53.9% 0
July 2025 16 16 43.8% 0
August 2025 14 14 92.9% 0
September 2025 5 5 80.0% 0
October 2025 10 10 90.0% 0
November 2025 30 30 83.3% 0
December 2025 31 31 80.7% 0
January 2026 27 26 65.4% 1
February 2026 20 20 70.0% 0
March 2026 24 20 45.0% 4
April 2026 25 23 69.6% 2
May 2026 28 28 75.0% 0
June 2026 27 25 72.0% 2
July 2026 4 4 75.0% 0

How to read this chart

Loading the guide…