OO5633

OO5633 (SkyWest Airlines) is a multi-stop service on 12 routes, busiest Lexington to Chicago. Of 537 departures recorded from October 2024 to July 2026, 79.9% 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
January931▲ 244.4%
February1727▲ 58.8%
March1520▲ 33.3%
April1730▲ 76.5%
May2431▲ 29.2%
June2930▲ 3.4%
July31310.0%
August29––
September29––
October31–in progress
November30––
December31––
Year to date (Jan–Jul)142200▲ 40.8%

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
January88.9%48.3%▼ 45.7%
February64.7%42.3%▼ 34.6%
March86.7%89.5%▲ 3.2%
April94.1%92.9%▼ 1.3%
May95.8%82.8%▼ 13.6%
June96.6%74.1%▼ 23.3%
July41.9%72.4%▲ 72.7%
August93.1%––
September93.1%––
October90.3%–in progress
November96.6%––
December74.2%––
Year-to-date average (Jan–Jul)81.2%71.7%▼ 11.7%

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–
February01–
March01–
April02–
May02–
June03–
July02–
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)013

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 97.4% 523
  • Cancelled 2.6% 14

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

On time, leg by leg

  1. LEX–ORD252 91.5%
  2. ORD–ATW72 71.6%
  3. ROC–ORD57 46.3%
  4. DEN–SLC36 50.0%
  5. ORD–PWM33 97.0%

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 15 15 93.3% 0
November 2024 1 1 100.0% 0
December 2024 29 29 86.2% 0
January 2025 9 9 88.9% 0
February 2025 17 17 64.7% 0
March 2025 15 15 86.7% 0
April 2025 17 17 94.1% 0
May 2025 24 24 95.8% 0
June 2025 29 29 96.6% 0
July 2025 31 31 41.9% 0
August 2025 29 29 93.1% 0
September 2025 29 29 93.1% 0
October 2025 31 31 90.3% 0
November 2025 30 29 96.6% 1
December 2025 31 31 74.2% 0
January 2026 31 29 48.3% 2
February 2026 27 26 42.3% 1
March 2026 20 19 89.5% 1
April 2026 30 28 92.9% 2
May 2026 31 29 82.8% 2
June 2026 30 27 74.1% 3
July 2026 31 29 72.4% 2

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