Skip to content
DelayAtlas

Flight number record

OO 3786

SkyWest Airlines · Fresno to Salt Lake City

Route
FAT → SLC
Departs
09:45
Flights
273
Period
July 2025 to June 2026
AGRADE

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 3786, check with SkyWest Airlines. SkyWest Airlines flies under contract for larger airlines, so a ticket for this flight may show a different airline code and number.

OO 3786 earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 19 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 273 flights, with a median arrival 9 minutes early.

Set against the rest of the country, OO 3786's record is 19 points better than the US average of 77.6%. That gap is worth roughly 187 fewer late arrivals for every thousand flights.

Key figures

On time

96.3%

Arrivals under 15 minutes late, of 269 completed flights

Avg delay

63 min

Across delayed arrivals only, not all flights

Cancelled

1.47%

National rate is 1.81%

1 hour+ late

1.5%

National rate is 8.1%

These figures cover 273 flights between July 2025 and June 2026. The median arrival is 9 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When OO 3786 flies

OO 3786 flies FAT to SLC without a single fixed slot. Its most common scheduled departure was 09:45, used on 55 of 273 flights, with 09:43 (40 flights) and 09:20 (34 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

  • Departs 09:4555 flights20.1%
  • Departs 09:4340 flights14.7%
  • Departs 09:2034 flights12.5%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 09:45 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 3786 runs 12 points better at 96.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

OO 3786 next to FAT to SLC

Every carrier on FAT to SLC combined arrived on time 95.0% of the time across 1,369 flights, so OO 3786 is about level with it. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 17 points.

OO 3786 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
OO 3786thin sample27396.3%63 min1.47%A
All SkyWest Airlines on FAT–SLC1,36995.0%86 min0.51%A+
All carriers on FAT–SLC1,36995.0%86 min0.51%A+
SkyWest Airlines, whole network852,93579.0%88 min1.77%B

Across the year

OO 3786 quarter by quarter

Quarter by quarter OO 3786 held fairly steady: 96.4% in Jul–Sep 2025, 95.2% in Oct–Dec 2025 and 97.4% in Apr–Jun 2026. A spread of 2 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

  • Jul–Sep 202584 flights96.4%
  • Oct–Dec 202588 flights95.2%
  • Jan–Mar 202624 flights
  • Apr–Jun 202677 flights97.4%

Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, OO 3786 ranged from 93.0% on Monday to 100.0% on Wednesday. With about 39 flights behind each day, a spread of 7 points is inside normal variation, so the day you fly is not worth changing for this flight.

On-time rate by day of the week93.0Mon95.2Tue100.0Wed100.0Thu97.6FriSat95.2Sun
Monday: 93.0 percent on time. Tuesday: 95.2 percent on time. Wednesday: 100.0 percent on time. Thursday: 100.0 percent on time. Friday: 97.6 percent on time. Saturday: not enough flights. Sunday: 95.2 percent on time

Delay causes

Why OO 3786 runs late

One category carries most of the weight here. Carrier accounts for 73% of the 634 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

  • Carrier
    73%
  • Extreme weather
    26%
  • National Airspace System
    0%

Extreme weather accounts for 26% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.2 times the usual weather exposure. The split is drawn from 634 delay minutes reported on OO 3786.

Cancellations sit at 1.47% against a national 1.81%, which is ordinary. Diversions add another 0.00%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 1.5% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 501 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

OO 3786 is not only a FAT to SLC flight. It also flew SLC to FAT (273 flights, 96.3% on time) often enough to be scored on its own. Airlines attach one number to several legs of an aircraft's day, and each leg keeps its own record here, so check which city pair is on your booking before reading a rate.

One caution: this is a thin sample. 273 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

Other routes flown as OO 3786
Also flown asFlightsOn timeAvg delayCancelledGrade
SLC to FATthin sample27396.3%30 min1.47%A

What to do with this

Booking OO 3786

For a booking, OO 3786 has one of the better records a US domestic flight can show: 96.3% on time and 1.47% cancelled. That is a base rate, not a promise about any single day.

Related

Where to go next

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.