OO4312

OO4312 (SkyWest Airlines) is a multi-stop service on 2 routes, busiest Salt Lake City to Butte. Of 1,198 departures recorded from October 2024 to July 2026, 95.6% 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
January260▲ 2,900.0%
February4856▲ 16.7%
March5262▲ 19.2%
April5260▲ 15.4%
May6062▲ 3.3%
June60600.0%
July62620.0%
August62––
September60––
October62–in progress
November58––
December58––
Year to date (Jan–Jul)336422▲ 25.6%

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%100.0%0.0%
February97.9%96.4%▼ 1.5%
March90.4%96.8%▲ 7.1%
April92.0%96.6%▲ 4.9%
May100.0%90.3%▼ 9.7%
June98.3%90.0%▼ 8.5%
July91.9%91.9%0.0%
August100.0%––
September93.3%––
October96.8%–in progress
November100.0%––
December94.8%––
Year-to-date average (Jan–Jul)95.8%94.6%▼ 1.3%

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–
February10▼ 100.0%
March00–
April220.0%
May00–
June00–
July00–
August0––
September0––
October0–in progress
November2––
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 99.4% 1,191
  • Cancelled 0.6% 7

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

On time, leg by leg

  1. SLC–BTM599 95.3%
  2. BTM–SLC599 95.8%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
SLC BTM Salt Lake City International Airport – Bert Mooney Airport 576 -4.3 min 95.3% 599
BTM SLC Bert Mooney Airport – Salt Lake City International Airport 576 -2.0 min 95.8% 599
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 34 34 97.1% 0
November 2024 52 52 98.1% 0
December 2024 54 54 94.4% 0
January 2025 2 2 100.0% 0
February 2025 48 47 97.9% 1
March 2025 52 52 90.4% 0
April 2025 52 50 92.0% 2
May 2025 60 60 100.0% 0
June 2025 60 60 98.3% 0
July 2025 62 62 91.9% 0
August 2025 62 62 100.0% 0
September 2025 60 60 93.3% 0
October 2025 62 62 96.8% 0
November 2025 58 56 100.0% 2
December 2025 58 58 94.8% 0
January 2026 60 60 100.0% 0
February 2026 56 56 96.4% 0
March 2026 62 62 96.8% 0
April 2026 60 58 96.6% 2
May 2026 62 62 90.3% 0
June 2026 60 60 90.0% 0
July 2026 62 62 91.9% 0

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