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DelayAtlas

Flight number record

OO 6290

SkyWest Airlines · Portland to Los Angeles

Route
PDX → LAX
Departs
07:00
Flights
302
Period
September 2025 to August 2026
B+GRADE

Historical statistics for September 2025 to August 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 lands a B+, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by about 2.1 hours on average. That rests on 302 flights, with a median arrival 5 minutes early.

Set against the rest of the country, OO 6290's record is 6 points better than the US average of 77.3%. That gap is worth roughly 60 fewer late arrivals for every thousand flights.

Key figures

On time

83.3%

Arrivals under 15 minutes late, of 299 completed flights

Avg delay

127 min

Across delayed arrivals only, not all flights

Cancelled

0.66%

National rate is 1.89%

1 hour+ late

8.0%

National rate is 8.3%

These figures cover 302 flights between September 2025 and August 2026. Beyond the headline rate, 8.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.

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Schedule

When OO 6290 flies

OO 6290 flies PDX to LAX without a single fixed slot. Its most common scheduled departure was 07:00, used on 67 of 302 flights, with 06:00 (66 flights) next.

  • Departs 07:0067 flights22.2%
  • Departs 06:0066 flights21.9%

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 07:00 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 6 points worse at 83.3%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Against the route

OO 6290 next to PDX to LAX

Every carrier on PDX to LAX combined arrived on time 86.6% of the time across 4,287 flights, so OO 6290 is 3 points behind it. SkyWest flew 563 flights on the same city pair under all its flight numbers, including this one, and those ran 80.0% on time. Across its whole network SkyWest Airlines managed 78.7%, which this flight beats by 5 points.

OO 6290 against its route and carrier
Compared withFlightsOn timeAvg delayCancelledGrade
OO 6290thin sample30283.3%127 min0.66%B+
All SkyWest Airlines on PDX–LAX56380.0%112 min0.36%B+
All carriers on PDX–LAX4,28786.6%72 min0.61%A+
SkyWest Airlines, whole network855,40678.7%88 min1.79%B

Across the year

OO 6290 quarter by quarter

Quarter by quarter OO 6290 held fairly steady: 79.7% in Oct–Dec 2025, 78.7% in Jan–Mar 2026, 87.9% in Apr–Jun 2026 and 84.9% in Jul–Sep 2026. A spread of 9 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

  • Jul–Sep 202525 flights—
  • Oct–Dec 202570 flights79.7%
  • Jan–Mar 202663 flights78.7%
  • Apr–Jun 202691 flights87.9%
  • Jul–Sep 202653 flights84.9%

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

By weekday, OO 6290 did best on Wednesday at 90.3% on time and worst on Thursday at 78.0%. Each day rests on about 43 flights, so a gap of 12 points is worth noticing but could still narrow in another year.

On-time rate by day of the week78.8Mon80.6Tue90.3Wed78.0Thu82.4Fri88.1Sat87.0Sun
Monday: 78.8 percent on time. Tuesday: 80.6 percent on time. Wednesday: 90.3 percent on time. Thursday: 78.0 percent on time. Friday: 82.4 percent on time. Saturday: 88.1 percent on time. Sunday: 87.0 percent on time

Arrival by arrival

How late OO 6290 runs when it is late

OO 6290 often beats the schedule: 91 of 299 completed flights, 30%, arrived 15 minutes or more early. The 50 late arrivals split 21 under half an hour, 5 between 30 and 60 minutes, and 24 an hour or more.

  • 15+ min early91 flights30.4%
  • Within 15 min158 flights52.8%
  • 15–29 min late21 flights7.0%
  • 30–59 min late5 flights1.7%
  • 1–2 hours late11 flights3.7%
  • 2+ hours late13 flights4.3%

Scale runs 0% to 100%.

Share of 299 completed flights by arrival against schedule.

Time lost at the gate mostly stays lost. Of 34 departures that left 15 minutes late or more, only 4 made it up before arrival. In the other direction, 20 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 LAX.

The worst days

Worst days for OO 6290

The latest arrival of the period was on 12 April 2026, 17 hours 56 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on five of the five worst days.

The latest arrivals of OO 6290 in the period
DateArrived late byLargest filed cause
12 April 202617 hours 56 minutesCarrier
18 June 20268 hours 46 minutesCarrier
21 March 20268 hours 6 minutesCarrier
24 December 20257 hours 50 minutesCarrier
2 April 20267 hours 10 minutesCarrier

Delay causes

Why OO 6290 runs late

Carrier accounts for 95% of the 6,358 delay minutes carriers reported here, and the remaining four split what is left.

  • Carrier
    95%
  • Late-arriving aircraft
    3%
  • National Airspace System
    2%

The largest share of delay minutes, 95%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 6,027 of the 6,358 delay minutes reported here. The split is drawn from 6,358 delay minutes reported on OO 6290.

Cancellations are rare at 0.66%, 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

8.0% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about 2.1 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.

Every one of the 302 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. 302 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, read OO 6290 as 83.3% on time with 0.66% cancelled over 302 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Related

Where to go next

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.