Best Time to Fly SAN to EWR: On-Time Stats by Hour & Airline
San Diego International → Newark Liberty International
Data through July 2026 · Last updated October 18, 2026
1,560 flights were scheduled from San Diego (SAN) to Newark (EWR) in the last 12 months, and 82.3% of those that flew arrived on time, 4.7 points above the US average of 77.6%.
United Airlines was the most punctual of the 2 airlines on the route at 82.3%, while Alaska Airlines trailed at 82.2%.
September has been the best month (88% on time) and Sunday the weakest day of the week (76%).
2.2% of flights were cancelled, versus 1.8% nationally.
SAN to EWR 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 |
|---|---|---|---|---|
| United Airlines | 82.3% | 86 min | 2.0% | 1,232 |
| Alaska Airlines | 82.2% | 80 min | 2.7% | 328 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAN to EWR
On-time arrival % by scheduled departure hour (local time), 3,123 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 81.0% | 1.8% | 171 |
| 7am–8am | 83.0% | 1.8% | 732 |
| 8am–9am | 77.8% | 3.2% | 439 |
| 9am–10am | 62.9% | 0.0% | 35 |
| 11am–12pm | 75.0% | 2.7% | 37 |
| 12pm–1pm | Limited data | 17 | |
| 1pm–2pm | 70.5% | 3.0% | 337 |
| 2pm–3pm | 68.2% | 0.3% | 322 |
| 3pm–4pm | Limited data | 12 | |
| 8pm–9pm | 76.8% | 5.8% | 87 |
| 9pm–10pm | 87.3% | 2.2% | 315 |
| 10pm–11pm | 91.7% | 2.1% | 619 |
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 EWR
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) | 88.2% | +6.1 pts | 0.0% | 51 |
| Christmas & New Year (Dec 20 - Jan 3) | 70.1% | -12.1 pts | 2.5% | 120 |
| Summer peak (Jun 15 - Aug 15) | 76.5% | -5.6 pts | 4.6% | 612 |
| All other days | 82.2% | — | 1.5% | 2,340 |
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).