Best Time to Fly SAN to GEG: On-Time Stats by Hour & Airline
San Diego International → Spokane International
Data through July 2026 · Last updated October 18, 2026
419 flights were scheduled from San Diego (SAN) to Spokane (GEG) in the last 12 months, and 82.9% of those that flew arrived on time, 5.3 points above the US average of 77.6%.
Among 2 airlines, Southwest Airlines led with 83.6% on time and Alaska Airlines was last with 82.8%.
Over 24 months, Tuesday was the most reliable day (88% on time) and December the worst month (68%).
The cancellation rate was 0.7% (US average 1.8%).
SAN to GEG 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 |
|---|---|---|---|---|
| Southwest Airlines | 83.6% | 53 min | 0.0% | 55 |
| Alaska Airlines | 82.8% | 47 min | 0.8% | 364 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAN to GEG
On-time arrival % by scheduled departure hour (local time), 740 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 90.9% | 0.0% | 33 |
| 9am–10am | Limited data | 9 | |
| 11am–12pm | Limited data | 15 | |
| 12pm–1pm | Limited data | 10 | |
| 2pm–3pm | Limited data | 1 | |
| 3pm–4pm | Limited data | 8 | |
| 6pm–7pm | Limited data | 28 | |
| 7pm–8pm | 79.2% | 1.6% | 244 |
| 8pm–9pm | 75.1% | 1.1% | 353 |
| 9pm–10pm | 87.2% | 0.0% | 39 |
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 GEG
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 | 13 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 73.5% | -8.1 pts | 0.6% | 156 |
| All other days | 81.7% | — | 1.1% | 541 |
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).