Flight number record

OO 3345

SkyWest Airlines · Fresno to Seattle

Route: FAT → SEA
Departs: 08:06
Flights: 344
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 3345, 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 3345 sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.6%. The late ones land roughly 50 minutes behind schedule. That rests on 344 flights, with a median arrival 1 minute early.

The national on-time rate over the same period is 77.6%, so OO 3345 runs 6 points behind the country as a whole. Across a thousand flights that is about 55 extra late arrivals.

On time

72.1%

Arrivals under 15 minutes late, of 340 completed flights

Avg delay

51 min

Across delayed arrivals only, not all flights

Cancelled

0.87%

National rate is 1.81%

1 hour+ late

5.6%

National rate is 8.1%

These figures cover 344 flights between July 2025 and June 2026. On-time means an arrival less than 15 minutes after the scheduled gate time, the same threshold the Department of Transportation uses in its own reports. Cancelled and diverted flights are excluded from the on-time rate and counted separately, which is why the cancellation column matters on its own.

Schedule

When OO 3345 flies

OO 3345 flies FAT to SEA without a single fixed slot. Its most common scheduled departure was 08:06, used on 94 of 344 flights, with 08:14 (50 flights) and 08:12 (46 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 08:0694 flights27.3%
Departs 08:1450 flights14.5%
Departs 08:1246 flights13.4%

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 08:06 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 3345 runs 12 points worse at 72.1%. 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 3345 next to FAT to SEA

Every carrier on FAT to SEA combined arrived on time 79.9% of the time across 966 flights, so OO 3345 is 8 points behind it. SkyWest flew 589 flights on the same city pair under all its flight numbers, including this one, and those ran 80.2% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight trails by 7 points.

OO 3345 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 3345thin sample	344	72.1%	51 min	0.87%	C+
All SkyWest Airlines on FAT–SEA	589	80.2%	54 min	0.51%	B+
All carriers on FAT–SEA	966	79.9%	55 min	1.04%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 3345 quarter by quarter

OO 3345 did not run the same all year. Its best quarter was Jan–Mar 2026 at 84.1% on time and its weakest Jul–Sep 2025 at 58.2%, a swing of 26 points on roughly 86 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202592 flights58.2%
Oct–Dec 202592 flights70.3%
Jan–Mar 202690 flights84.1%
Apr–Jun 202670 flights77.1%

Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 3345 did best on Saturday at 87.5% on time and worst on Thursday at 55.1%. Each day rests on about 49 flights, so a gap of 32 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 3345 runs late

One category carries most of the weight here. Carrier accounts for 65% of the 4,865 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
65%
Late-arriving aircraft
18%
National Airspace System
13%
Extreme weather
4%

The largest share of delay minutes, 65%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 3,159 of the 4,865 delay minutes reported here. The split is drawn from 4,865 delay minutes reported on OO 3345.

Cancellations are rare at 0.87%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

5.6% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last roughly 50 minutes, which a normal layover absorbs.

The 748 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.

The same number turns up on one other city pair in the data, including ACV to SEA (21), but none flew often enough under OO 3345 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to FAT to SEA only.

One caution: this is a thin sample. 344 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.

What to do with this

Booking OO 3345

For a booking, OO 3345 is one of the weaker ways to fly FAT to SEA: 8 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

Where to go next

A flight number here means SkyWest Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

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.

Key figures