Flight number record

OO 6290

SkyWest Airlines · Portland to Los Angeles

Route: PDX → LAX
Departs: 06:00
Flights: 311
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 6290, 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 6290 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 2.3 hours. That rests on 311 flights, with a median arrival 8 minutes early.

Set against the rest of the country, OO 6290's record is 8 points better than the US average of 77.6%. That gap is worth roughly 75 fewer late arrivals for every thousand flights.

On time

85.1%

Arrivals under 15 minutes late, of 308 completed flights

Avg delay

138 min

Across delayed arrivals only, not all flights

Cancelled

0.64%

National rate is 1.81%

1 hour+ late

8.1%

National rate is 8.1%

These figures cover 311 flights between July 2025 and June 2026. Beyond the headline rate, 8.1% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.

Schedule

When OO 6290 flies

OO 6290 flies PDX to LAX without a single fixed slot. Its most common scheduled departure was 06:00, used on 68 of 311 flights, with 07:00 (42 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 06:0068 flights21.9%
Departs 07:0042 flights13.5%

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 06:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and OO 6290 runs 4 points worse at 85.1%. 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 6290 next to PDX to LAX

Every carrier on PDX to LAX combined arrived on time 87.4% of the time across 4,403 flights, so OO 6290 is 2 points behind it. SkyWest flew 599 flights on the same city pair under all its flight numbers, including this one, and those ran 81.0% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 6 points.

OO 6290 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 6290thin sample	311	85.1%	138 min	0.64%	A+
All SkyWest Airlines on PDX–LAX	599	81.0%	117 min	0.33%	B+
All carriers on PDX–LAX	4,403	87.4%	79 min	0.89%	A+
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 6290 quarter by quarter

OO 6290 did not run the same all year. Its best quarter was Jul–Sep 2025 at 90.8% on time and its weakest Jan–Mar 2026 at 78.7%, a swing of 12 points on roughly 78 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 202587 flights90.8%
Oct–Dec 202570 flights79.7%
Jan–Mar 202663 flights78.7%
Apr–Jun 202691 flights87.9%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 6290 did best on Wednesday at 91.4% on time and worst on Thursday at 78.0%. Each day rests on about 44 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 6290 runs late

One category carries most of the weight here. Carrier accounts for 94% of the 6,340 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
94%
Late-arriving aircraft
3%
National Airspace System
3%
Security
0%

The largest share of delay minutes, 94%, 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 5,978 of the 6,340 delay minutes reported here. The split is drawn from 6,340 delay minutes reported on OO 6290.

Cancellations are rare at 0.64%, 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

8.1% 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 2.3 hours, which a normal layover absorbs.

The 833 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.

Every one of the 311 flights under OO 6290 in the data flew PDX to LAX. The number was not reused on any other city pair, which makes this a clean record of one route.

One caution: this is a thin sample. 311 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 6290

For a booking, OO 6290 has one of the better records a US domestic flight can show: 85.1% on time and 0.64% 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