Spokane (GEG) to Salt Lake City (SLC): On-Time Performance
Data through July 2026
Spokane (GEG) to Salt Lake City (SLC) effectively runs on two schedules. In May 2026, 95% of arrivals were on time; in July 2024 that fell to 74% — a 21-point seasonal swing. Across the full period the route averages 89% on-time against a national 78%.
- On-time
- 89%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 4.6
- last 12 months
- Duration
- 1h 47m
- scheduled
- Distance
- 546 mi
Best airline from GEG to SLC
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 94% | 5 min | 0.3% | 1,200 |
| Delta Air Lines | 86% | 13 min | 0.7% | 2,275 |
Monthly on-time trend
Best time to fly from GEG to SLC
Aim for departures around 9 a.m. (96% on-time); avoid 1 p.m. departures (84%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 89% | 8 min |
| Tuesday | 89% | 11 min |
| Wednesday | 89% | 12 min |
| Thursdaybest | 92% | 8 min |
| Friday | 86% | 11 min |
| Saturday | 88% | 11 min |
| Sunday | 88% | 12 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft38%
- Airline operations51%
- National airspace system5%
- Weather7%
Frequently asked questions
- How often are flights from GEG to SLC delayed?
- 11% of GEG–SLC 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 GEG to SLC?
- SkyWest Airlines has the best on-time record on this route at 94%, based on 1,200 flights. 2 airlines flew GEG–SLC frequently enough to compare in this period.
- What is the best time of day to fly from GEG to SLC?
- Departures around 9 a.m. have the best record (96% on-time), while departures around 1 p.m. have the worst (84%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from GEG to SLC?
- The scheduled GEG–SLC flight time averages 1h 47m over 546 miles. Actual arrival times vary — flights on this route land 15+ minutes late 11% of the time.
- How often are GEG to SLC flights cancelled?
- 0.6% 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 GEG to SLC?
- July 2024 was the roughest month in this dataset, with only 74% of arrivals on time. The best was May 2026 at 95%. If your dates are flexible, that 21-point gap is worth planning around.
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Based on 3,475 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.