Carrier route record
OOEUG→SFO
SkyWest Airlines · Eugene to San Francisco
- Flights
- 248
- Period
- September 2025 to August 2026
- Share of route
- 25%
- 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 SFO earns an F, which is as low as this site's scale goes for a reason. Only 43.2% of flights arrive inside the 15-minute window, 34 points worse than the national rate of 77.3%. Late arrivals average an hour and a half. Treat any tight connection here as a coin flip. That rests on 248 flights, with a median arrival 21 minutes late.
The national on-time rate over the same period is 77.3%, so SkyWest on EUG to SFO runs 34 points behind the country as a whole. Across a thousand flights that is about 341 extra late arrivals.
Key figures
On time
43.2%
Arrivals under 15 minutes late, of 243 completed flights
Avg delay
88 min
Across delayed arrivals only, not all flights
Cancelled
2.02%
National rate is 1.89%
Whole route
65.6%
Every carrier on EUG to SFO, 1,004 flights
These figures cover 248 flights between September 2025 and August 2026. Beyond the headline rate, 25.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
SkyWest against every carrier on EUG to SFO
SkyWest flew 248 of the 1,004 flights on EUG to SFO, about 25% of it. Its 43.2% on time is 22 points worse than the route as a whole, which runs 65.6%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from United at 72.9% to SkyWest at 43.2%.
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 | 756 | 72.9% | 67 min | 0.53% | C+ |
| SkyWest Airlines (this page)thin sample | 248 | 43.2% | 88 min | 2.02% | F |
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 matters more here than the choice of carrier. The gap between the best and worst window is 33 points, against half a point between the best and worst carrier.
- 5am–8am65 flights66.2%
- 8am–11am—
- 11am–2pm—
- 2pm–5pm21 flights—
- 5pm–8pm162 flights33.1%
- 8pm–5am—
Scale runs 25% to 70%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 33.1% on time, against 66.2% 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 162 flights scheduled in it.
Across the year
SkyWest on EUG to SFO through the year
- Jul–Sep 202524 flights—
- Oct–Dec 202530 flights—
- Jan–Mar 202619 flights—
- Apr–Jun 202684 flights26.8%
- Jul–Sep 202691 flights41.8%
Scale runs 20% to 45%. 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 43.2% on time across 248 flights.
Split by quarter, SkyWest on EUG to SFO logged 24 flights in Jul–Sep 2025, 30 flights in Oct–Dec 2025, 19 flights in Jan–Mar 2026, 84 flights in Apr–Jun 2026 and 91 flights in Jul–Sep 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 43.2% annual figure is the one to use.
Across the week, Wednesday is the strongest day at 52.0% on time and Friday the weakest at 32.4%, a spread of 20 points.
Arrival by arrival
How late SkyWest on EUG to SFO runs when it is late
The 138 late arrivals split 38 under half an hour, 38 between 30 and 60 minutes, and 62 an hour or more.
- 15+ min early24 flights9.9%
- Within 15 min81 flights33.3%
- 15–29 min late38 flights15.6%
- 30–59 min late38 flights15.6%
- 1–2 hours late31 flights12.8%
- 2+ hours late31 flights12.8%
Scale runs 0% to 100%.
Share of 243 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 116 departures that left 15 minutes late or more, only 4 made it up before arrival. In the other direction, 26 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SFO.
The worst days
Worst days for SkyWest on EUG to SFO
The latest arrival of the period was on 3 April 2026, 14 hours 50 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On four of the five worst days the largest share was filed as national airspace system delay.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 3 April 2026 | 14 hours 50 minutes | Carrier |
| 22 May 2026 | 14 hours 18 minutes | National Airspace System |
| 31 July 2026 | 13 hours 50 minutes | National Airspace System |
| 24 July 2026 | 4 hours 3 minutes | National Airspace System |
| 31 August 2026 | 3 hours 42 minutes | National Airspace System |
Delay causes
Why SkyWest runs late on this route
National Airspace System accounts for 65% of the 12,000 delay minutes carriers reported here, and the remaining four split what is left.
- 65%National Airspace System
- 22%Carrier
- 12%Late-arriving aircraft
- 2%Extreme weather
65% 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 7,895 minutes out of 12,000, against a national NAS share of 21%. The split is drawn from 12,113 reported delay minutes.
Cancellations sit at 2.02% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
25.5% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection 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 62.9% on time across 249 flights, 20 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 20 points of difference.
One caution: this is a thin sample. 248 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. 248 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 43.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 243 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 SFO72.9%
- 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 7.05 million flight records
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.