Best Time to Fly SFO to GEG: On-Time Stats by Hour & Airline
San Francisco International → Spokane International
Data through July 2026 · Last updated October 18, 2026
890 flights were scheduled from San Francisco (SFO) to Spokane (GEG) in the last 12 months, and 75.7% of those that flew arrived on time, 2.0 points below the US average of 77.6%.
United Airlines was the most punctual of the 2 airlines on the route at 80.8%, while SkyWest Airlines trailed at 75.3%.
March has been the best month (86% on time) and Friday the weakest day of the week (71%).
0.6% of flights were cancelled, versus 1.8% nationally.
SFO 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 |
|---|---|---|---|---|
| United Airlines | 80.8% | 45 min | 0.0% | 52 |
| SkyWest Airlines | 75.3% | 66 min | 0.6% | 838 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SFO to GEG
On-time arrival % by scheduled departure hour (local time), 1,668 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 90.2% | 0.4% | 226 |
| 9am–10am | 82.7% | 0.0% | 98 |
| 10am–11am | 31.4% | 0.0% | 35 |
| 11am–12pm | 75.0% | 0.0% | 72 |
| 12pm–1pm | 76.5% | 0.6% | 334 |
| 1pm–2pm | 82.0% | 0.0% | 61 |
| 2pm–3pm | 75.7% | 0.0% | 74 |
| 3pm–4pm | 75.0% | 3.0% | 33 |
| 4pm–5pm | 78.9% | 0.8% | 129 |
| 6pm–7pm | 84.8% | 0.0% | 66 |
| 7pm–8pm | 82.3% | 2.5% | 81 |
| 8pm–9pm | 76.2% | 0.5% | 211 |
| 9pm–10pm | 76.7% | 0.8% | 248 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SFO 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 | 26 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 78.6% | -2.8 pts | 2.3% | 43 |
| Summer peak (Jun 15 - Aug 15) | 69.5% | -11.8 pts | 0.6% | 359 |
| All other days | 81.3% | — | 0.6% | 1,240 |
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).