Carrier route record

OORDM→SEA

SkyWest Airlines · Redmond to Seattle

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 RDM to SEA 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 about an hour. That rests on 1,415 flights, with a median arrival 10 minutes early.

Set against the rest of the country, SkyWest's RDM to SEA 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 1,389 completed flights

Avg delay

67 min

Across delayed arrivals only, not all flights

Cancelled

1.77%

National rate is 1.81%

Whole route

85.4%

Every carrier on RDM to SEA, 1,939 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 RDM to SEA

SkyWest flew 1,415 of the 1,939 flights on RDM to SEA, most of the route. Its 86.6% on time is about level with the route as a whole at 85.4%. 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 82.1%.

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 RDM to SEA
Airline	Flights	On time	Avg delay	Cancelled	Grade
SkyWest Airlines (this page)	1,415	86.6%	67 min	1.77%	A
Alaska Airlines	524	82.1%	54 min	1.72%	B

Flight by flight

SkyWest flight numbers on RDM to SEA

Departure window

When SkyWest runs best on this route

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 12 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am386 flights87.9%
8am–11am15 flights—
11am–2pm435 flights88.5%
2pm–5pm148 flights76.4%
5pm–8pm431 flights87.0%
8pm–5am—

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

The best window here is not the first bank but the 11am–2pm slot at 88.5% on time, ahead of 2pm–5pm at 76.4%. Where the curve peaks mid-day rather than at dawn, the constraint is usually congestion at one end rather than the aircraft's own rotation. The 11am–2pm window is the busiest, with 435 flights scheduled in it.

Across the year

SkyWest on RDM to SEA through the year

Darker means more delays. Figures are on-time percentages.November best, April worst

November is the best month on the calendar at 90.7% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. September was the busiest month here, with 150 flights.

Across the week, Saturday is the strongest day at 91.0% on time and Thursday the weakest at 84.5%. 7 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 55% of the 13,000 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
55%
Extreme weather
18%
Late-arriving aircraft
14%
National Airspace System
12%
Security
1%

Extreme weather accounts for 18% 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 2.9 times the usual weather exposure. The split is drawn from 12,522 reported delay minutes.

The largest share of delay minutes, 55%, 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 6,840 of the 13,000 delay minutes reported here.

Cancellations sit at 1.77% against a national 1.81%, which is ordinary. Diversions add another 0.07%.

Connections and stage length

What a delay here costs

Badly late arrivals are rare here: only 4.5% 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 11am–2pm 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 RDM to SEA

Put together: SkyWest's RDM to SEA record is 86.6% on time with 1.77% cancelled, worth an A. The largest single lever is the 11am–2pm departure window, and the numbers below the table are where the reasoning behind that lives. 1,389 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