OO5318

OO5318 (SkyWest Airlines) is a multi-stop service on 23 routes, busiest Chicago to Tulsa. Of 407 departures recorded from December 2024 to July 2026, 79.3% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

Months without data are left blank.

The most recent periods17 periods
PeriodDepartures 2025Departures 2026Change vs last year
January94▼ 55.6%
February182▼ 88.9%
March3027▼ 10.0%
April30300.0%
May2241▲ 86.4%
June850▲ 525.0%
July298▼ 72.4%
August31––
September30––
October25–in progress
November–––
December–––
Year to date (Jan–Jul)146162▲ 11.0%

according to the US BTS · December 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods17 periods
PeriodOn time 2025On time 2026Change vs last year
January62.5%100.0%▲ 60.0%
February66.7%100.0%▲ 50.0%
March80.0%92.3%▲ 15.4%
April76.7%70.0%▼ 8.7%
May95.2%80.0%▼ 16.0%
June75.0%83.7%▲ 11.6%
July44.4%85.7%▲ 92.9%
August89.7%––
September79.3%––
October88.0%–in progress
November–––
December–––
Year-to-date average (Jan–Jul)71.5%87.4%▲ 22.2%

according to the US BTS · December 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · December 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods17 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January10▼ 100.0%
February00–
March01–
April00–
May110.0%
June01–
July21▼ 50.0%
August2––
September1––
October0–in progress
November–––
December–––
Year to date (Jan–Jul)440.0%

according to the US BTS · December 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 97.3% 396
  • Cancelled 2.7% 11

Share of all recorded flights in the period, all legs. · Dec 19, 2024 → Jul 26, 2026

On time, leg by leg

  1. ORD–TUL35 82.9%
  2. ORD–MSN35 88.6%
  3. IDA–DEN34 50.0%
  4. DSM–ORD34 78.8%
  5. ORD–CID32 71.9%
  6. SMF–SFO31 83.9%
  7. OKC–IAH31 77.4%

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

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
December 2024 13 13 84.6% 0
January 2025 9 8 62.5% 1
February 2025 18 18 66.7% 0
March 2025 30 30 80.0% 0
April 2025 30 30 76.7% 0
May 2025 22 21 95.2% 1
June 2025 8 8 75.0% 0
July 2025 29 27 44.4% 2
August 2025 31 29 89.7% 2
September 2025 30 29 79.3% 1
October 2025 25 25 88.0% 0
January 2026 4 4 100.0% 0
February 2026 2 2 100.0% 0
March 2026 27 26 92.3% 1
April 2026 30 30 70.0% 0
May 2026 41 40 80.0% 1
June 2026 50 49 83.7% 1
July 2026 8 7 85.7% 1

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