Carrier route record
OOEUG→SFO
SkyWest Airlines · Eugene to San Francisco
- Flights
- 249
- Period
- July 2025 to June 2026
- Share of route
- 25%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on EUG to SFO draws a D. Roughly one flight in two arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 249 flights, with a median arrival 4 minutes late.
The national on-time rate over the same period is 77.6%, so SkyWest on EUG to SFO runs 19 points behind the country as a whole. Across a thousand flights that is about 190 extra late arrivals.
Key figures
On time
58.6%
Arrivals under 15 minutes late, of 244 completed flights
Avg delay
82 min
Across delayed arrivals only, not all flights
Cancelled
2.01%
National rate is 1.81%
Whole route
72.0%
Every carrier on EUG to SFO, 997 flights
These figures cover 249 flights between July 2025 and June 2026. Beyond the headline rate, 16.0% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
SkyWest against every carrier on EUG to SFO
SkyWest flew 249 of the 997 flights on EUG to SFO, about 25% of it. Its 58.6% on time is 13 points worse than the route as a whole, which runs 72.0%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 76.4% to SkyWest at 58.6%.
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 |
|---|---|---|---|---|---|
| United Airlines | 748 | 76.4% | 72 min | 0.40% | B+ |
| SkyWest Airlines (this page)thin sample | 249 | 58.6% | 82 min | 2.01% | D |
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 31 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–8am55 flights81.8%
- 8am–11am—
- 11am–2pm—
- 2pm–5pm6 flights—
- 5pm–8pm188 flights50.8%
- 8pm–5am—
Scale runs 40% to 85%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 50.8% on time, against 81.8% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5pm–8pm window is the busiest, with 188 flights scheduled in it.
Across the year
SkyWest on EUG to SFO through the year
- Jul–Sep 2025116 flights81.9%
- Oct–Dec 202530 flights—
- Jan–Mar 202619 flights—
- Apr–Jun 202684 flights26.8%
Scale runs 20% to 85%. Rows with fewer than 30 flights show a dash.
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 58.6% on time across 249 flights.
Split by quarter, SkyWest on EUG to SFO logged 116 flights in Jul–Sep 2025, 30 flights in Oct–Dec 2025, 19 flights in Jan–Mar 2026 and 84 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 58.6% annual figure is the one to use.
Across the week, Saturday is the strongest day at 76.7% on time and Monday the weakest at 48.6%. 28 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. National Airspace System accounts for 62% of the 8,288 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.
- 62%National Airspace System
- 23%Carrier
- 15%Late-arriving aircraft
- 1%Extreme weather
62% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 5,102 minutes out of 8,288, against a national NAS share of 21%. The split is drawn from 8,288 reported delay minutes.
Cancellations sit at 2.01% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 16.0% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
At 451 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 is a different operation and performs like one: it runs 71.6% on time across 248 flights, 13 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 13 points of difference.
One caution: this is a thin sample. 249 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 SkyWest on EUG to SFO
Put together: treat all of this as provisional. 249 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 58.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 244 completed flights over 12 months sit behind that.
Related
Where to go next
- EUG to SFO, every carrier
- SkyWest on SFO to EUG, the return leg
- United Airlines on EUG to SFO76.4%
- SkyWest Airlines network-wide record
- San Francisco International (SFO) delay statistics
- How often a connection fails at the major US hubs
- The best time of day to fly, according to 7.04 million flight records
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.