OO5520

OO5520 (SkyWest Airlines) is a multi-stop service on 7 routes, busiest Oklahoma City to Houston. Of 611 departures recorded from October 2024 to July 2026, 88.3% 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
January31310.0%
February2827▼ 3.6%
March319▼ 71.0%
April30300.0%
May1031▲ 210.0%
June30300.0%
July31310.0%
August31––
September30––
October31–in progress
November28––
December30––
Year to date (Jan–Jul)191189▼ 1.0%

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
January71.0%86.2%▲ 21.5%
February85.7%96.3%▲ 12.4%
March90.3%55.6%▼ 38.5%
April90.0%96.7%▲ 7.4%
May80.0%90.3%▲ 12.9%
June82.8%96.7%▲ 16.8%
July96.8%71.0%▼ 26.7%
August93.6%––
September93.3%––
October93.6%–in progress
November96.4%––
December83.3%––
Year-to-date average (Jan–Jul)85.2%84.7%▼ 0.6%

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–
February00–
March00–
April00–
May00–
June10▼ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)12▲ 100.0%

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 99.5% 608
  • Cancelled 0.5% 3

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

On time, leg by leg

  1. OKC–IAH247 90.6%
  2. DEN–PSC186 85.0%
  3. CLD–DEN124 87.9%
  4. IAH–MAF35 94.3%

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

Legs flown under this number

4
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 100.0% 0
November 2024 30 30 83.3% 0
December 2024 31 31 87.1% 0
January 2025 31 31 71.0% 0
February 2025 28 28 85.7% 0
March 2025 31 31 90.3% 0
April 2025 30 30 90.0% 0
May 2025 10 10 80.0% 0
June 2025 30 29 82.8% 1
July 2025 31 31 96.8% 0
August 2025 31 31 93.6% 0
September 2025 30 30 93.3% 0
October 2025 31 31 93.6% 0
November 2025 28 28 96.4% 0
December 2025 30 30 83.3% 0
January 2026 31 29 86.2% 2
February 2026 27 27 96.3% 0
March 2026 9 9 55.6% 0
April 2026 30 30 96.7% 0
May 2026 31 31 90.3% 0
June 2026 30 30 96.7% 0
July 2026 31 31 71.0% 0

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