Carrier route record
OOEUG→SEA
SkyWest Airlines · Eugene to Seattle
- Flights
- 1,632
- Period
- September 2025 to August 2026
- Share of route
- 86%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on EUG 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 10 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 1,632 flights, with a median arrival 10 minutes early.
Set against the rest of the country, SkyWest's EUG to SEA record is 10 points better than the US average of 77.3%. That gap is worth roughly 96 fewer late arrivals for every thousand flights.
Key figures
On time
86.9%
Arrivals under 15 minutes late, of 1,607 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
1.41%
National rate is 1.89%
Whole route
87.5%
Every carrier on EUG to SEA, 1,897 flights
These figures cover 1,632 flights between September 2025 and August 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.
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Carrier by carrier
SkyWest against every carrier on EUG to SEA
SkyWest flew 1,632 of the 1,897 flights on EUG to SEA, most of the route. Its 86.9% on time is about level with the route as a whole at 87.5%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Alaska at 91.2% to SkyWest at 86.9%. One of those carriers flew fewer than 365 flights here, so treat their positions as rough.
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 |
|---|---|---|---|---|---|
| Alaska Airlinesthin sample | 265 | 91.2% | 50 min | 1.13% | A |
| SkyWest Airlines (this page) | 1,632 | 86.9% | 68 min | 1.41% | A |
Flight by flight
SkyWest flight numbers on EUG 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 1,632 flights.
- 5am–8am452 flights92.1%
- 8am–11am53 flights82.4%
- 11am–2pm509 flights84.8%
- 2pm–5pm121 flights90.8%
- 5pm–8pm469 flights85.1%
- 8pm–5am28 flights—
Scale runs 75% to 100%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 92.1% of the time, against 82.4% for the morning 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 11am–2pm window is the busiest, with 509 flights scheduled in it.
Across the year
SkyWest on EUG to SEA through the year
August is the worst month at 76.2% on time, 19 points below April, the best at 95.6%. 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 163 flights.
Across the week, Tuesday is the strongest day at 88.5% on time and Saturday the weakest at 84.4%, a spread of 4 points.
Arrival by arrival
How late SkyWest on EUG to SEA runs when it is late
SkyWest on EUG to SEA often beats the schedule: 534 of 1,607 completed flights, 33%, arrived 15 minutes or more early. The 211 late arrivals split 81 under half an hour, 63 between 30 and 60 minutes, and 67 an hour or more.
- 15+ min early534 flights33.2%
- Within 15 min862 flights53.6%
- 15–29 min late81 flights5.0%
- 30–59 min late63 flights3.9%
- 1–2 hours late39 flights2.4%
- 2+ hours late28 flights1.7%
Scale runs 0% to 100%.
Share of 1,607 completed flights by arrival against schedule.
27 of 190 late departures made up the time and arrived on time, 14% of them. 48 flights left on time and still arrived late.
The worst days
Worst days for SkyWest on EUG to SEA
The latest arrival of the period was on 9 October 2025, 14 hours 38 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 9 October 2025 | 14 hours 38 minutes | Carrier |
| 19 June 2026 | 7 hours 51 minutes | Carrier |
| 25 January 2026 | 7 hours 36 minutes | Late-arriving aircraft |
| 9 July 2026 | 6 hours 22 minutes | Late-arriving aircraft |
| 22 February 2026 | 6 hours 17 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 55% of the 14,000 delay minutes carriers reported here, and the remaining four split what is left.
- 55%Carrier
- 28%Late-arriving aircraft
- 9%Extreme weather
- 8%National Airspace System
- 0%Security
The largest share of delay minutes, 55%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 7,829 of the 14,000 delay minutes reported here. The split is drawn from 14,313 reported delay minutes.
Cancellations sit at 1.41% against a national 1.89%, which is ordinary. Diversions add another 0.12%.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 4.2% 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 234 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 84.6% on time across 1,629 flights, within 2 points 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 1,632 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 EUG to SEA
Put together: the calendar is the biggest lever here, not the carrier or the hour. April runs 95.6% on time and August 76.2%, a swing of 19 points. If the dates move at all, move them out of August before you think about anything else. 1,607 completed flights over 12 months sit behind that.
Related
Where to go next
- EUG to SEA, every carrier
- SkyWest on SEA to EUG, the return leg
- Alaska Airlines on EUG to SEA91.2%
- 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.