Carrier route record
OORDM→SEA
SkyWest Airlines · Redmond to Seattle
- Flights
- 1,453
- Period
- September 2025 to August 2026
- Share of route
- 78%
- Carriers
- 2
Historical statistics for September 2025 to August 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 8 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 1,453 flights, with a median arrival 9 minutes early.
Set against the rest of the country, SkyWest's RDM to SEA record is 8 points better than the US average of 77.3%. That gap is worth roughly 83 fewer late arrivals for every thousand flights.
Key figures
On time
85.6%
Arrivals under 15 minutes late, of 1,426 completed flights
Avg delay
58 min
Across delayed arrivals only, not all flights
Cancelled
1.79%
National rate is 1.89%
Whole route
85.2%
Every carrier on RDM to SEA, 1,867 flights
These figures cover 1,453 flights between September 2025 and August 2026. The median arrival is 9 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.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Carrier by carrier
SkyWest against every carrier on RDM to SEA
SkyWest flew 1,453 of the 1,867 flights on RDM to SEA, most of the route. Its 85.6% on time is about level with the route as a whole at 85.2%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 85.6% to Alaska at 83.8%.
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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines (this page) | 1,453 | 85.6% | 58 min | 1.79% | A |
| Alaska Airlines | 414 | 83.8% | 53 min | 1.45% | B |
Flight by flight
SkyWest flight numbers on RDM to SEA
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.
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 1,453 flights.
- 5am–8am435 flights88.4%
- 8am–11am28 flights—
- 11am–2pm394 flights87.0%
- 2pm–5pm115 flights79.1%
- 5pm–8pm481 flights83.9%
- 8pm–5am—
Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 88.4% of the time, against 79.1% for the afternoon window. That is 9 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 481 flights scheduled in it.
Across the year
SkyWest on RDM to SEA through the year
August is the worst month at 79.6% on time, 11 points below November, the best at 90.7%. 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. July was the busiest month here, with 153 flights.
Across the week, Saturday is the strongest day at 89.5% on time and Thursday the weakest at 82.1%, a spread of 7 points.
Arrival by arrival
How late SkyWest on RDM to SEA runs when it is late
SkyWest on RDM to SEA often beats the schedule: 514 of 1,426 completed flights, 36%, arrived 15 minutes or more early. The 206 late arrivals split 85 under half an hour, 60 between 30 and 60 minutes, and 61 an hour or more.
- 15+ min early514 flights36.0%
- Within 15 min706 flights49.5%
- 15–29 min late85 flights6.0%
- 30–59 min late60 flights4.2%
- 1–2 hours late39 flights2.7%
- 2+ hours late22 flights1.5%
Scale runs 0% to 100%.
Share of 1,426 completed flights by arrival against schedule.
42 of 195 late departures made up the time and arrived on time, 22% of them. 53 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on RDM to SEA
The latest arrival of the period was on 15 March 2026, 7 hours 36 minutes behind schedule; most of its delay minutes were filed as national airspace system delay. The five worst days are spread across March, January, August and July, with no single month standing out.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 15 March 2026 | 7 hours 36 minutes | National Airspace System |
| 20 January 2026 | 4 hours 42 minutes | Extreme weather |
| 8 August 2026 | 4 hours 14 minutes | Late-arriving aircraft |
| 22 July 2026 | 4 hours 9 minutes | Late-arriving aircraft |
| 3 March 2026 | 3 hours 49 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 44% of the 12,000 delay minutes carriers reported here, and the remaining four split what is left.
- 44%Carrier
- 22%Extreme weather
- 19%Late-arriving aircraft
- 16%National Airspace System
- 0%Security
Extreme weather accounts for 22% 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 3.6 times the usual weather exposure. The split is drawn from 11,927 reported delay minutes.
The largest share of delay minutes, 44%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 5,195 of the 12,000 delay minutes reported here.
Cancellations sit at 1.79% against a national 1.89%, which is ordinary. Diversions add another 0.07%.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 4.3% land an hour or more behind schedule, against 8.3% 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 5am–8am window matters as much as it does.
The return leg runs 85.9% on time across 1,452 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 1,453 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: take the 5am–8am departure, avoid August if the dates are flexible, and if two carriers are within a few dollars of each other, Alaska is the one with the record behind it. None of that guarantees an on-time arrival; it moves the odds by 9 points, which is the most any booking decision can do. 1,426 completed flights over 12 months sit behind that.
Related
Where to go next
- RDM to SEA, every carrier
- SkyWest on SEA to RDM, the return leg
- Alaska Airlines on RDM to SEA83.8%
- SkyWest Airlines network-wide record
- Seattle-Tacoma International (SEA) delay statistics
- The best time of day to fly, according to 7.05 million flight records
- Worst months to fly in the US, ranked by the data
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.