Flight number record

OO 3377

SkyWest Airlines · Los Angeles to Santa Rosa

Route: LAX → STS
Departs: 09:25
Flights: 282
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 3377, 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 3377 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 8 points better than the national rate of 77.6%. When something does go wrong the average delay runs about an hour. That rests on 282 flights, with a median arrival 13 minutes early.

Set against the rest of the country, OO 3377's record is 8 points better than the US average of 77.6%. That gap is worth roughly 82 fewer late arrivals for every thousand flights.

On time

85.8%

Arrivals under 15 minutes late, of 274 completed flights

Avg delay

64 min

Across delayed arrivals only, not all flights

Cancelled

0.71%

National rate is 1.81%

1 hour+ late

5.1%

National rate is 8.1%

These figures cover 282 flights between July 2025 and June 2026. The median arrival is 13 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 3377 flies

OO 3377 flies LAX to STS without a single fixed slot. Its most common scheduled departure was 09:25, used on 74 of 282 flights, with 09:30 (45 flights) and 08:19 (45 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 09:2574 flights26.2%
Departs 09:3045 flights16.0%
Departs 08:1945 flights16.0%

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 09:25 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and OO 3377 runs level with that at 85.8%. 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 3377 next to LAX to STS

Every carrier on LAX to STS combined arrived on time 87.9% of the time across 704 flights, so OO 3377 is 2 points behind it. SkyWest flew 677 flights on the same city pair under all its flight numbers, including this one, and those ran 87.7% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 7 points.

OO 3377 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 3377thin sample	282	85.8%	64 min	0.71%	A+
All SkyWest Airlines on LAX–STS	677	87.7%	83 min	2.51%	A
All carriers on LAX–STS	704	87.9%	84 min	2.41%	A
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 3377 quarter by quarter

Quarter by quarter OO 3377 held fairly steady: 84.8% in Jul–Sep 2025, 84.7% in Oct–Dec 2025 and 86.3% in Jan–Mar 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 202592 flights84.8%
Oct–Dec 202591 flights84.7%
Jan–Mar 202675 flights86.3%
Apr–Jun 202624 flights—

Scale runs 75% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, OO 3377 ranged from 82.9% on Sunday to 90.0% on Wednesday. With about 40 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.

Delay causes

Why OO 3377 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 2,511 reported delay minutes.

Late-arriving aircraft
41%
Carrier
29%
Extreme weather
24%
National Airspace System
6%

Extreme weather accounts for 24% 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 3.8 times the usual weather exposure. The split is drawn from 2,511 delay minutes reported on OO 3377.

Cancellations are rare at 0.71%, 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

5.1% 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 about an hour, which a normal layover absorbs.

The same number turns up on one other city pair in the data, including PDX to SLC (21), but none flew often enough under OO 3377 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LAX to STS only.

One caution: this is a thin sample. 282 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 3377

For a booking, OO 3377 has one of the better records a US domestic flight can show: 85.8% on time and 0.71% cancelled. That is a base rate, not a promise about any single day.

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