San Francisco (SFO) to Eugene (EUG): On-Time Performance
Data through July 2026
The calendar drives reliability on SFO–EUG. January 2025 flights landed on schedule 90% of the time, but June 2026 dropped to 47% — a gap of 43 points. Across the full period the route averages 79% on-time against a national 78%.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 2.7
- last 12 months
- Duration
- 1h 39m
- scheduled
- Distance
- 451 mi
Best airline from SFO to EUG
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 80% | 15 min | 0.3% | 1,546 |
| SkyWest Airlines | 75% | 17 min | 1.7% | 484 |
Monthly on-time trend
Best time to fly from SFO to EUG
Aim for departures around 5 p.m. (94% on-time); avoid 11 p.m. departures (70%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 75% | 18 min |
| Tuesday | 83% | 10 min |
| Wednesday | 81% | 12 min |
| Thursday | 74% | 18 min |
| Friday | 75% | 19 min |
| Saturdaybest | 85% | 15 min |
| Sunday | 79% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations36%
- National airspace system14%
- Weather1%
Frequently asked questions
- How often are flights from SFO to EUG delayed?
- 21% of SFO–EUG flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 15 minutes.
- Which airline is most reliable from SFO to EUG?
- United Airlines has the best on-time record on this route at 80%, based on 1,546 flights. 2 airlines flew SFO–EUG frequently enough to compare in this period.
- What is the best time of day to fly from SFO to EUG?
- Departures around 5 p.m. have the best record (94% on-time), while departures around 11 p.m. have the worst (70%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SFO to EUG?
- The scheduled SFO–EUG flight time averages 1h 39m over 451 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are SFO to EUG flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SFO to EUG?
- June 2026 was the roughest month in this dataset, with only 47% of arrivals on time. The best was January 2025 at 90%. If your dates are flexible, that 43-point gap is worth planning around.
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Based on 2,030 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.