Flight number record
OO 3345
SkyWest Airlines · Fresno to Seattle
- Route
- FAT → SEA
- Departs
- 08:06
- Flights
- 295
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 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 lands a B+, about a point worse than the national rate of 77.3%. About one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 295 flights, with a median arrival 5 minutes early.
Key figures
On time
76.0%
Arrivals under 15 minutes late, of 292 completed flights
Avg delay
56 min
Across delayed arrivals only, not all flights
Cancelled
0.68%
National rate is 1.89%
1 hour+ late
4.8%
National rate is 8.3%
These figures cover 295 flights between September 2025 and August 2026. The median arrival is 5 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.
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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 295 flights, with 07:00 (41 flights) and 08:01 (35 flights) next.
- Departs 08:0694 flights31.9%
- Departs 07:0041 flights13.9%
- Departs 08:0135 flights11.9%
Scale runs 0% to 100%.
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 83.9%, and OO 3345 runs 8 points worse at 76.0%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.
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Against the route
OO 3345 next to FAT to SEA
Every carrier on FAT to SEA combined arrived on time 82.7% of the time across 882 flights, so OO 3345 is 7 points behind it. SkyWest flew 465 flights on the same city pair under all its flight numbers, including this one, and those ran 82.7% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight trails by 3 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| OO 3345thin sample | 295 | 76.0% | 56 min | 0.68% | B+ |
| All SkyWest Airlines on FAT–SEA | 465 | 82.7% | 56 min | 0.43% | B+ |
| All carriers on FAT–SEA | 882 | 82.7% | 56 min | 0.68% | B+ |
| SkyWest Airlines, whole network | 855,406 | 78.7% | 88 min | 1.79% | 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 60.0%, a swing of 24 points on roughly 74 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 202530 flights60.0%
- Oct–Dec 202592 flights70.3%
- Jan–Mar 202690 flights84.1%
- Apr–Jun 202670 flights77.1%
- Jul–Sep 202613 flights—
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, OO 3345 did best on Saturday at 90.2% on time and worst on Thursday at 61.9%. Each day rests on about 42 flights, so a gap of 28 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late OO 3345 runs when it is late
OO 3345 often beats the schedule: 88 of 292 completed flights, 30%, arrived 15 minutes or more early. Most of the lateness is short. 43 of the 70 late arrivals were under half an hour behind, and 14 reached an hour or more.
- 15+ min early88 flights30.1%
- Within 15 min134 flights45.9%
- 15–29 min late43 flights14.7%
- 30–59 min late13 flights4.5%
- 1–2 hours late8 flights2.7%
- 2+ hours late6 flights2.1%
Scale runs 0% to 100%.
Share of 292 completed flights by arrival against schedule.
5 of 31 late departures made up the time and arrived on time, 16% of them. In the other direction, 44 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SEA.
The worst days
Worst days for OO 3345
The latest arrival of the period was on 4 March 2026, 7 hours 24 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 4 March 2026 | 7 hours 24 minutes | Carrier |
| 7 March 2026 | 7 hours 24 minutes | Late-arriving aircraft |
| 25 September 2025 | 4 hours 52 minutes | Carrier |
| 6 May 2026 | 3 hours 25 minutes | Carrier |
| 7 September 2025 | 3 hours 11 minutes | Late-arriving aircraft |
Delay causes
Why OO 3345 runs late
Carrier accounts for 62% of the 3,895 delay minutes carriers reported here, and the remaining four split what is left.
- 62%Carrier
- 22%Late-arriving aircraft
- 12%National Airspace System
- 3%Extreme weather
The largest share of delay minutes, 62%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,421 of the 3,895 delay minutes reported here. The split is drawn from 3,895 delay minutes reported on OO 3345.
Cancellations are rare at 0.68%, below the national 1.89% 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
Badly late arrivals are rare here: only 4.8% land an hour or more behind schedule, against 8.3% 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 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.
The same number turns up on one other city pair in the data, including ACV to SEA (70), 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. 295 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: 7 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.
Related
Where to go next
- FAT to SEA, every carrier and departure
- SEA to FAT, the return direction
- Seattle-Tacoma International (SEA) delay statistics
- SkyWest Airlines on-time record
- Every SkyWest Airlines flight number with a record
- The most and least reliable flight numbers in the US
- The best time of day to fly, according to 7.05 million flight records
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, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.