OO5458

OO5458 (SkyWest Airlines) is a multi-stop service on 18 routes, busiest Chicago to Sioux Falls. Of 516 departures recorded from October 2024 to July 2026, 81.0% 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
January315▼ 83.9%
February1819▲ 5.6%
March2730▲ 11.1%
April3029▼ 3.3%
May28280.0%
June2922▼ 24.1%
July2127▲ 28.6%
August26––
September30––
October28–in progress
November20––
December5––
Year to date (Jan–Jul)184160▼ 13.0%

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
January63.3%80.0%▲ 26.3%
February61.1%89.5%▲ 46.4%
March63.0%85.7%▲ 36.1%
April86.7%76.9%▼ 11.2%
May82.1%89.3%▲ 8.7%
June86.2%90.9%▲ 5.5%
July90.5%92.6%▲ 2.3%
August88.5%––
September89.7%––
October64.3%–in progress
November70.6%––
December80.0%––
Year-to-date average (Jan–Jul)76.1%86.4%▲ 13.5%

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–
March02–
April03–
May00–
June00–
July00–
August0––
September1––
October0–in progress
November3––
December0––
Year to date (Jan–Jul)15▲ 400.0%

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 98.1% 506
  • Cancelled 1.9% 10

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

On time, leg by leg

  1. ORD–FSD185 81.8%
  2. LAX–PHX56 91.1%
  3. ORD–SBN54 58.5%
  4. SFO–TUS38 94.7%
  5. ORD–MCI31 77.8%
  6. HSV–ORD31 67.7%

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 20 20 100.0% 0
November 2024 30 30 86.7% 0
December 2024 13 13 46.2% 0
January 2025 31 30 63.3% 1
February 2025 18 18 61.1% 0
March 2025 27 27 63.0% 0
April 2025 30 30 86.7% 0
May 2025 28 28 82.1% 0
June 2025 29 29 86.2% 0
July 2025 21 21 90.5% 0
August 2025 26 26 88.5% 0
September 2025 30 29 89.7% 1
October 2025 28 28 64.3% 0
November 2025 20 17 70.6% 3
December 2025 5 5 80.0% 0
January 2026 5 5 80.0% 0
February 2026 19 19 89.5% 0
March 2026 30 28 85.7% 2
April 2026 29 26 76.9% 3
May 2026 28 28 89.3% 0
June 2026 22 22 90.9% 0
July 2026 27 27 92.6% 0

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