OO5564

OO5564 (SkyWest Airlines) is a multi-stop service on 13 routes, busiest Chicago to South Bend. Of 580 departures recorded from October 2024 to July 2026, 80.2% 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
January927▲ 200.0%
February1828▲ 55.6%
March1931▲ 63.2%
April2426▲ 8.3%
May31310.0%
June30300.0%
July31310.0%
August31––
September30––
October26–in progress
November30––
December19––
Year to date (Jan–Jul)162204▲ 25.9%

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
January87.5%81.5%▼ 6.9%
February55.6%92.9%▲ 67.1%
March84.2%93.6%▲ 11.1%
April79.2%80.8%▲ 2.0%
May77.4%83.3%▲ 7.6%
June65.5%100.0%▲ 52.6%
July54.8%93.6%▲ 70.6%
August65.5%––
September75.9%––
October92.3%–in progress
November85.7%––
December63.2%––
Year-to-date average (Jan–Jul)72.0%89.4%▲ 24.1%

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%
February00–
March00–
April00–
May01–
June10▼ 100.0%
July00–
August2––
September1––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)21▼ 50.0%

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 98.4% 571
  • Cancelled 1.6% 9

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

On time, leg by leg

  1. ORD–SBN284 72.5%
  2. GCC–DEN153 94.1%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
ORD SBN Chicago O'Hare International Airport – South Bend International Airport 135 19.9 min 72.5% 284
GCC DEN Northeast Wyoming Regional Airport – Denver International Airport 504 5.2 min 94.1% 153
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 19 19 79.0% 0
November 2024 30 29 79.3% 1
December 2024 29 29 86.2% 0
January 2025 9 8 87.5% 1
February 2025 18 18 55.6% 0
March 2025 19 19 84.2% 0
April 2025 24 24 79.2% 0
May 2025 31 31 77.4% 0
June 2025 30 29 65.5% 1
July 2025 31 31 54.8% 0
August 2025 31 29 65.5% 2
September 2025 30 29 75.9% 1
October 2025 26 26 92.3% 0
November 2025 30 28 85.7% 2
December 2025 19 19 63.2% 0
January 2026 27 27 81.5% 0
February 2026 28 28 92.9% 0
March 2026 31 31 93.6% 0
April 2026 26 26 80.8% 0
May 2026 31 30 83.3% 1
June 2026 30 30 100.0% 0
July 2026 31 31 93.6% 0

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