Salt Lake City (SLC) to Spokane (GEG): On-Time Performance
Data through July 2026
When you fly SLC to GEG matters as much as anything else about the booking: the route swung from 93% on-time in October 2024 to just 73% in July 2024. Across the full period the route averages 86% on-time against a national 78%.
- On-time
- 86%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 4.6
- last 12 months
- Duration
- 1h 49m
- scheduled
- Distance
- 546 mi
Best airline from SLC to GEG
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 92% | 5 min | 0.1% | 1,199 |
| Delta Air Lines | 83% | 13 min | 0.7% | 2,276 |
Monthly on-time trend
Best time to fly from SLC to GEG
Aim for departures around 8 a.m. (93% on-time); avoid 11 p.m. departures (77%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 88% | 8 min |
| Tuesday | 86% | 9 min |
| Wednesdaybest | 89% | 8 min |
| Thursday | 87% | 10 min |
| Friday | 82% | 15 min |
| Saturday | 86% | 9 min |
| Sunday | 82% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft16%
- Airline operations71%
- National airspace system8%
- Weather6%
Frequently asked questions
- How often are flights from SLC to GEG delayed?
- 14% of SLC–GEG flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 10 minutes.
- Which airline is most reliable from SLC to GEG?
- SkyWest Airlines has the best on-time record on this route at 92%, based on 1,199 flights. 2 airlines flew SLC–GEG frequently enough to compare in this period.
- What is the best time of day to fly from SLC to GEG?
- Departures around 8 a.m. have the best record (93% on-time), while departures around 11 p.m. have the worst (77%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to GEG?
- The scheduled SLC–GEG flight time averages 1h 49m over 546 miles. Actual arrival times vary — flights on this route land 15+ minutes late 14% of the time.
- How often are SLC to GEG flights cancelled?
- 0.5% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SLC to GEG?
- July 2024 was the roughest month in this dataset, with only 73% of arrivals on time. The best was October 2024 at 93%. If your dates are flexible, that 20-point gap is worth planning around.
Explore related pages
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Based on 3,475 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.