OO5339

OO5339 (SkyWest Airlines) is a multi-stop service on 6 routes, busiest Denver to Billings. Of 639 departures recorded from October 2024 to July 2026, 79.8% 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%
February2826▼ 7.1%
March31310.0%
April30300.0%
May31310.0%
June30300.0%
July3031▲ 3.3%
August31––
September30––
October31–in progress
November30––
December31––
Year to date (Jan–Jul)211210▼ 0.5%

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
January83.9%90.0%▲ 7.3%
February85.2%84.0%▼ 1.4%
March100.0%90.0%▼ 10.0%
April93.3%50.0%▼ 46.4%
May83.9%46.7%▼ 44.4%
June90.0%40.0%▼ 55.6%
July83.3%35.5%▼ 57.4%
August90.3%––
September96.7%––
October100.0%–in progress
November89.3%––
December71.0%––
Year-to-date average (Jan–Jul)88.5%62.3%▼ 29.6%

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
January01–
February110.0%
March01–
April02–
May01–
June00–
July00–
August0––
September0––
October0–in progress
November2––
December0––
Year to date (Jan–Jul)16▲ 500.0%

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 98.4% 629
  • Cancelled 1.6% 10

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

On time, leg by leg

  1. DEN–BIL431 89.7%
  2. SNA–SFO170 54.6%
  3. SAF–DEN35 80.0%

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 20 20 75.0% 0
November 2024 29 28 92.9% 1
December 2024 16 16 87.5% 0
January 2025 31 31 83.9% 0
February 2025 28 27 85.2% 1
March 2025 31 31 100.0% 0
April 2025 30 30 93.3% 0
May 2025 31 31 83.9% 0
June 2025 30 30 90.0% 0
July 2025 30 30 83.3% 0
August 2025 31 31 90.3% 0
September 2025 30 30 96.7% 0
October 2025 31 31 100.0% 0
November 2025 30 28 89.3% 2
December 2025 31 31 71.0% 0
January 2026 31 30 90.0% 1
February 2026 26 25 84.0% 1
March 2026 31 30 90.0% 1
April 2026 30 28 50.0% 2
May 2026 31 30 46.7% 1
June 2026 30 30 40.0% 0
July 2026 31 31 35.5% 0

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