OO5531

OO5531 (SkyWest Airlines) is a multi-stop service on 13 routes, busiest Oklahoma City to Houston. Of 591 departures recorded from October 2024 to July 2026, 85.2% 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
January2331▲ 34.8%
February1128▲ 154.5%
March2431▲ 29.2%
April2830▲ 7.1%
May31310.0%
June30300.0%
July3130▼ 3.2%
August31––
September25––
October31–in progress
November29––
December28––
Year to date (Jan–Jul)178211▲ 18.5%

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
January100.0%86.7%▼ 13.3%
February100.0%85.7%▼ 14.3%
March83.3%71.0%▼ 14.8%
April96.4%90.0%▼ 6.7%
May74.2%90.3%▲ 21.7%
June79.3%80.0%▲ 0.9%
July83.9%73.3%▼ 12.6%
August80.7%––
September100.0%––
October83.9%–in progress
November89.7%––
December78.6%––
Year-to-date average (Jan–Jul)88.2%82.4%▼ 6.5%

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
January01–
February00–
March00–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)110.0%

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 99.7% 589
  • Cancelled 0.3% 2

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

On time, leg by leg

  1. OKC–IAH400 83.9%
  2. MAF–IAH31 90.3%
  3. SMF–SFO30 93.3%

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

Legs flown under this number

3
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 18 18 83.3% 0
November 2024 25 25 92.0% 0
December 2024 15 15 93.3% 0
January 2025 23 23 100.0% 0
February 2025 11 11 100.0% 0
March 2025 24 24 83.3% 0
April 2025 28 28 96.4% 0
May 2025 31 31 74.2% 0
June 2025 30 29 79.3% 1
July 2025 31 31 83.9% 0
August 2025 31 31 80.7% 0
September 2025 25 25 100.0% 0
October 2025 31 31 83.9% 0
November 2025 29 29 89.7% 0
December 2025 28 28 78.6% 0
January 2026 31 30 86.7% 1
February 2026 28 28 85.7% 0
March 2026 31 31 71.0% 0
April 2026 30 30 90.0% 0
May 2026 31 31 90.3% 0
June 2026 30 30 80.0% 0
July 2026 30 30 73.3% 0

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