Carrier route record

OOSEA→RDM

SkyWest Airlines · Seattle to Redmond

Flights: 1,415
Period: July 2025 to June 2026
Share of route: 73%
Carriers: 2

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.

SkyWest on SEA to RDM 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 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 50 minutes. That rests on 1,415 flights, with a median arrival 10 minutes early.

Set against the rest of the country, SkyWest's SEA to RDM record is 9 points better than the US average of 77.6%. That gap is worth roughly 90 fewer late arrivals for every thousand flights.

On time

86.6%

Arrivals under 15 minutes late, of 1,388 completed flights

Avg delay

52 min

Across delayed arrivals only, not all flights

Cancelled

1.70%

National rate is 1.81%

Whole route

83.9%

Every carrier on SEA to RDM, 1,938 flights

These figures cover 1,415 flights between July 2025 and June 2026. The median arrival is 10 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.

Carrier by carrier

SkyWest against every carrier on SEA to RDM

SkyWest flew 1,415 of the 1,938 flights on SEA to RDM, most of the route. Its 86.6% on time is 3 points better than the route as a whole, which runs 83.9%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 86.6% to Alaska at 76.5%.

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on SEA to RDM
Airline	Flights	On time	Avg delay	Cancelled	Grade
SkyWest Airlines (this page)	1,415	86.6%	52 min	1.70%	A
Alaska Airlines	523	76.5%	43 min	1.53%	B

Flight by flight

SkyWest flight numbers on SEA to RDM

Departure window

When SkyWest runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 1,415 flights.

5am–8am—
8am–11am396 flights90.1%
11am–2pm92 flights85.9%
2pm–5pm199 flights88.1%
5pm–8pm355 flights80.5%
8pm–5am373 flights88.2%

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

Book the morning departure. Flights leaving between 8am–11am arrive on time 90.1% of the time, against 80.5% for the evening window. That is 10 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 8am–11am window is the busiest, with 396 flights scheduled in it.

Across the year

SkyWest on SEA to RDM through the year

Darker means more delays. Figures are on-time percentages.October best, July worst

July is the worst month at 78.0% on time, 14 points below October, the best at 92.2%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. September was the busiest month here, with 150 flights.

Across the week, Saturday is the strongest day at 90.4% on time and Sunday the weakest at 84.6%. 6 points is a smaller lever than departure hour, but it is free.

Delay causes

Why SkyWest runs late on this route

One category carries most of the weight here. Carrier accounts for 51% of the 9,730 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
51%
Extreme weather
25%
Late-arriving aircraft
14%
National Airspace System
10%

Extreme weather accounts for 25% 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 monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.0 times the usual weather exposure. The split is drawn from 9,730 reported delay minutes.

The largest share of delay minutes, 51%, 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 4,948 of the 9,730 delay minutes reported here.

Cancellations sit at 1.70% against a national 1.81%, which is ordinary. Diversions add another 0.21%.

Connections and stage length

What a delay here costs

Badly late arrivals are rare here: only 3.1% 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.

At 228 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 8am–11am window matters as much as it does.

The return leg runs 86.6% on time across 1,415 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

The sample behind these figures is 1,415 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.

What to do with this

Booking SkyWest on SEA to RDM

Put together: the calendar is the biggest lever here, not the carrier or the hour. October runs 92.2% on time and July 78.0%, a swing of 14 points. If the dates move at all, move them out of July before you think about anything else. 1,388 completed flights over 12 months sit behind that.

Where to go next

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