Best Time to Fly SAN to EUG: On-Time Stats by Hour & Airline
San Diego International → Mahlon Sweet Field
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.7% of San Diego (SAN) to Eugene (EUG) flights arrived on time (474 scheduled flights). That is 1.1 points above the national average of 77.6%.
SkyWest Airlines was the most punctual of the 3 airlines on the route at 81.2%, while Alaska Airlines trailed at 73.2%.
May has been the best month (89% on time) and Sunday the weakest day of the week (71%).
1.1% of flights were cancelled, versus 1.8% nationally.
SAN to EUG on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 81.2% | 49 min | 1.2% | 259 |
| Southwest Airlines | 76.8% | 37 min | 0.0% | 142 |
| Alaska Airlines | 73.2% | 37 min | 2.7% | 73 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAN to EUG
On-time arrival % by scheduled departure hour (local time), 741 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 85.3% | 0.0% | 109 |
| 9am–10am | 83.3% | 0.0% | 42 |
| 10am–11am | Limited data | 14 | |
| 11am–12pm | 75.9% | 0.0% | 87 |
| 12pm–1pm | Limited data | 15 | |
| 1pm–2pm | 75.6% | 2.2% | 92 |
| 2pm–3pm | 76.1% | 0.0% | 176 |
| 3pm–4pm | 70.5% | 0.8% | 133 |
| 5pm–6pm | Limited data | 1 | |
| 7pm–8pm | 83.7% | 3.9% | 51 |
| 8pm–9pm | Limited data | 21 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SAN to EUG
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 19 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 70.0% | -7.9 pts | 2.4% | 41 |
| Summer peak (Jun 15 - Aug 15) | 78.2% | +0.4 pts | 0.9% | 218 |
| All other days | 77.9% | — | 0.4% | 463 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).