Flight number record

OO 4047

SkyWest Airlines · Seattle to Redmond

Route: SEA → RDM
Departs: 21:35
Flights: 346
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s OO 4047, 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 4047 earns an A. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 12 points better than the national rate of 77.6%. When something does go wrong the average delay runs a little over an hour. That rests on 346 flights, with a median arrival 15 minutes early.

Set against the rest of the country, OO 4047's record is 12 points better than the US average of 77.6%. That gap is worth roughly 120 fewer late arrivals for every thousand flights.

On time

89.6%

Arrivals under 15 minutes late, of 336 completed flights

Avg delay

69 min

Across delayed arrivals only, not all flights

Cancelled

2.02%

National rate is 1.81%

1 hour+ late

1.8%

National rate is 8.1%

These figures cover 346 flights between July 2025 and June 2026. The median arrival is 15 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 4047 flies

OO 4047 flies SEA to RDM without a single fixed slot. Its most common scheduled departure was 21:35, used on 168 of 346 flights, with 21:30 (57 flights) and 21:20 (49 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 21:35168 flights48.6%
Departs 21:3057 flights16.5%
Departs 21:2049 flights14.2%

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 21:35 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and OO 4047 runs 19 points better at 89.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

OO 4047 next to SEA to RDM

Every carrier on SEA to RDM combined arrived on time 83.9% of the time across 1,938 flights, so OO 4047 is 6 points ahead of it. SkyWest flew 1,415 flights on the same city pair under all its flight numbers, including this one, and those ran 86.6% on time. Across its whole network SkyWest Airlines managed 79.0%, which this flight beats by 11 points.

OO 4047 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
OO 4047thin sample	346	89.6%	69 min	2.02%	A
All SkyWest Airlines on SEA–RDM	1,415	86.6%	52 min	1.70%	A
All carriers on SEA–RDM	1,938	83.9%	49 min	1.65%	B
SkyWest Airlines, whole network	852,935	79.0%	88 min	1.77%	B

Across the year

OO 4047 quarter by quarter

Quarter by quarter OO 4047 held fairly steady: 87.9% in Jul–Sep 2025, 88.3% in Oct–Dec 2025, 90.9% in Jan–Mar 2026 and 91.2% in Apr–Jun 2026. A spread of 3 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202591 flights87.9%
Oct–Dec 202578 flights88.3%
Jan–Mar 202686 flights90.9%
Apr–Jun 202691 flights91.2%

Scale runs 80% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, OO 4047 did best on Sunday at 95.7% on time and worst on Friday at 82.6%. Each day rests on about 49 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why OO 4047 runs late

One category carries most of the weight here. Carrier accounts for 63% of the 2,404 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
63%
Extreme weather
33%
National Airspace System
3%

Extreme weather accounts for 33% 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 5.3 times the usual weather exposure. The split is drawn from 2,404 delay minutes reported on OO 4047.

Cancellations sit at 2.02% against a national 1.81%, which is ordinary. Diversions add another 0.87%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 1.8% land an hour or more behind schedule, against 8.1% 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.

Every one of the 346 flights under OO 4047 in the data flew SEA to RDM. 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. 346 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 4047

For a booking, read OO 4047 as 89.6% on time with 2.02% cancelled over 346 flights. Those are rates from the past twelve months, not a forecast for any particular 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