OO5563

OO5563 (SkyWest Airlines) is a multi-stop service on 20 routes, busiest Madison to Chicago. Of 501 departures recorded from October 2024 to July 2026, 81.9% 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
January3031▲ 3.3%
February1428▲ 100.0%
March2731▲ 14.8%
April1730▲ 76.5%
May28280.0%
June2327▲ 17.4%
July1631▲ 93.8%
August11––
September5––
October6–in progress
November28––
December29––
Year to date (Jan–Jul)155206▲ 32.9%

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
January76.7%62.1%▼ 19.0%
February76.9%82.1%▲ 6.8%
March74.1%93.6%▲ 26.3%
April88.2%90.0%▲ 2.0%
May75.0%64.3%▼ 14.3%
June78.3%100.0%▲ 27.8%
July43.8%86.2%▲ 97.1%
August90.9%––
September80.0%––
October100.0%–in progress
November92.9%––
December86.2%––
Year-to-date average (Jan–Jul)73.3%82.6%▲ 12.7%

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
January02–
February10▼ 100.0%
March00–
April00–
May00–
June00–
July02–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)14▲ 300.0%

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 99.0% 496
  • Cancelled 1.0% 5

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

On time, leg by leg

  1. MSN–ORD149 71.0%
  2. ACV–LAX56 92.9%
  3. IAH–TUL50 94.0%
  4. ORD–AVL37 81.1%
  5. ORD–PWM36 76.5%
  6. ORD–CAK36 88.2%

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

Legs flown under this number

6
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 15 15 86.7% 0
November 2024 19 19 94.7% 0
December 2024 27 27 85.2% 0
January 2025 30 30 76.7% 0
February 2025 14 13 76.9% 1
March 2025 27 27 74.1% 0
April 2025 17 17 88.2% 0
May 2025 28 28 75.0% 0
June 2025 23 23 78.3% 0
July 2025 16 16 43.8% 0
August 2025 11 11 90.9% 0
September 2025 5 5 80.0% 0
October 2025 6 6 100.0% 0
November 2025 28 28 92.9% 0
December 2025 29 29 86.2% 0
January 2026 31 29 62.1% 2
February 2026 28 28 82.1% 0
March 2026 31 31 93.6% 0
April 2026 30 30 90.0% 0
May 2026 28 28 64.3% 0
June 2026 27 27 100.0% 0
July 2026 31 29 86.2% 2

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