OO4964

OO4964 (SkyWest Airlines) is a multi-stop service on 12 routes, busiest Nashville to Chicago. Of 696 departures recorded from October 2024 to July 2026, 75.3% 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
January2631▲ 19.2%
February28280.0%
March931▲ 244.4%
April30300.0%
May3031▲ 3.3%
June30300.0%
July31310.0%
August31––
September58––
October62–in progress
November30––
December31––
Year to date (Jan–Jul)184212▲ 15.2%

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
January80.8%74.2%▼ 8.1%
February67.9%57.7%▼ 15.0%
March88.9%65.5%▼ 26.3%
April79.3%77.8%▼ 1.9%
May90.0%73.3%▼ 18.5%
June73.3%76.7%▲ 4.6%
July69.0%72.4%▲ 5.0%
August72.4%––
September84.2%––
October88.7%–in progress
November72.4%––
December45.2%––
Year-to-date average (Jan–Jul)78.4%71.1%▼ 9.4%

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
January00–
February02–
March02–
April13▲ 200.0%
May01–
June00–
July220.0%
August2––
September1––
October0–in progress
November1––
December0––
Year to date (Jan–Jul)310▲ 233.3%

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 97.3% 677
  • Cancelled 2.7% 19

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

On time, leg by leg

  1. BNA–ORD220 72.9%
  2. LAX–ASE110 62.3%
  3. ORD–MLI74 76.8%
  4. SAF–DFW60 86.4%
  5. DFW–SAF60 86.7%
  6. SHV–CLT44 62.8%
  7. LAX–ELP43 93.0%
  8. PIA–ORD31 96.8%

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

Legs flown under this number

8
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 39 39 64.1% 0
November 2024 34 32 87.5% 2
December 2024 15 15 93.3% 0
January 2025 26 26 80.8% 0
February 2025 28 28 67.9% 0
March 2025 9 9 88.9% 0
April 2025 30 29 79.3% 1
May 2025 30 30 90.0% 0
June 2025 30 30 73.3% 0
July 2025 31 29 69.0% 2
August 2025 31 29 72.4% 2
September 2025 58 57 84.2% 1
October 2025 62 62 88.7% 0
November 2025 30 29 72.4% 1
December 2025 31 31 45.2% 0
January 2026 31 31 74.2% 0
February 2026 28 26 57.7% 2
March 2026 31 29 65.5% 2
April 2026 30 27 77.8% 3
May 2026 31 30 73.3% 1
June 2026 30 30 76.7% 0
July 2026 31 29 72.4% 2

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