OO5323

OO5323 (SkyWest Airlines) is a multi-stop service on 22 routes, busiest St Louis to Chicago. Of 573 departures recorded from October 2024 to July 2026, 80.3% 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
January3119▼ 38.7%
February2820▼ 28.6%
March31310.0%
April30300.0%
May30300.0%
June2930▲ 3.4%
July31310.0%
August20––
September8––
October22–in progress
November18––
December27––
Year to date (Jan–Jul)210191▼ 9.0%

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
January78.6%84.2%▲ 7.2%
February67.9%85.0%▲ 25.3%
March83.9%80.7%▼ 3.8%
April93.3%58.6%▼ 37.2%
May83.3%43.3%▼ 48.0%
June82.8%93.3%▲ 12.8%
July77.4%86.7%▲ 11.9%
August70.0%––
September100.0%––
October86.4%–in progress
November94.1%––
December81.5%––
Year-to-date average (Jan–Jul)81.0%76.0%▼ 6.2%

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
January30▼ 100.0%
February00–
March00–
April01–
May00–
June00–
July01–
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)32▼ 33.3%

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 99.0% 567
  • Cancelled 1.0% 6

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

On time, leg by leg

  1. STL–ORD91 84.6%
  2. SMF–SFO76 56.0%
  3. GEG–SFO71 91.4%
  4. MCI–SFO53 88.2%
  5. IAH–ICT38 81.6%
  6. XNA–ORD37 72.2%

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 85.0% 0
November 2024 30 30 86.7% 0
December 2024 27 27 85.2% 0
January 2025 31 28 78.6% 3
February 2025 28 28 67.9% 0
March 2025 31 31 83.9% 0
April 2025 30 30 93.3% 0
May 2025 30 30 83.3% 0
June 2025 29 29 82.8% 0
July 2025 31 31 77.4% 0
August 2025 20 20 70.0% 0
September 2025 8 8 100.0% 0
October 2025 22 22 86.4% 0
November 2025 18 17 94.1% 1
December 2025 27 27 81.5% 0
January 2026 19 19 84.2% 0
February 2026 20 20 85.0% 0
March 2026 31 31 80.7% 0
April 2026 30 29 58.6% 1
May 2026 30 30 43.3% 0
June 2026 30 30 93.3% 0
July 2026 31 30 86.7% 1

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