Sacramento (SMF) to Spokane (GEG): On-Time Performance
Data through May 2026
The calendar drives reliability on SMF–GEG. September 2024 flights landed on schedule 93% of the time, but December 2025 dropped to 67% — a gap of 26 points. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 68%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 1.8
- last 12 months
- Duration
- 1h 49m
- scheduled
- Distance
- 649 mi
Monthly on-time trend
Best time to fly from SMF to GEG
Aim for departures around 7 a.m. (95% on-time); avoid 8 p.m. departures (61%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 10 min |
| Tuesday | 81% | 12 min |
| Wednesday | 83% | 10 min |
| Thursday | 79% | 14 min |
| Friday | 76% | 13 min |
| Saturdaybest | 90% | 7 min |
| Sunday | 81% | 11 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft76%
- Airline operations21%
- National airspace system3%
Frequently asked questions
- How often are flights from SMF to GEG delayed?
- 19% of SMF–GEG flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 11 minutes.
- What is the best time of day to fly from SMF to GEG?
- Departures around 7 a.m. have the best record (95% on-time), while departures around 8 p.m. have the worst (61%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SMF to GEG?
- The scheduled SMF–GEG flight time averages 1h 49m over 649 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are SMF to GEG flights cancelled?
- 0% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SMF to GEG?
- December 2025 was the roughest month in this dataset, with only 67% of arrivals on time. The best was September 2024 at 93%. If your dates are flexible, that 26-point gap is worth planning around.
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Based on 1,276 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.