Salt Lake City (SLC) to Lewiston (LWS): On-Time Performance
Data through May 2026
When you fly SLC to LWS matters as much as anything else about the booking: the route swung from 100% on-time in October 2024 to just 77% in June 2024. Across the full period the route averages 91% on-time against a national 78%.
- On-time
- 91%
- arrived <15 min late
- Avg delay
- 5 min
- completed flights
- Cancelled
- 0.0%
- Flights/day
- 1.0
- last 12 months
- Duration
- 1h 43m
- scheduled
- Distance
- 461 mi
Monthly on-time trend
Best time to fly from SLC to LWS
Aim for departures around 12 p.m. (97% on-time); avoid 3 p.m. departures (88%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 96% | 1 min |
| Tuesday | 88% | 9 min |
| Wednesday | 88% | 4 min |
| Thursday | 93% | 6 min |
| Friday | 92% | 4 min |
| Saturday | 93% | 5 min |
| Sunday | 90% | 5 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Airline operations85%
- National airspace system3%
- Weather12%
Frequently asked questions
- How often are flights from SLC to LWS delayed?
- 9% of SLC–LWS 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 5 minutes.
- What is the best time of day to fly from SLC to LWS?
- Departures around 12 p.m. have the best record (97% on-time), while departures around 3 p.m. have the worst (88%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to LWS?
- The scheduled SLC–LWS flight time averages 1h 43m over 461 miles. Actual arrival times vary — flights on this route land 15+ minutes late 9% of the time.
- How often are SLC to LWS 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 SLC to LWS?
- June 2024 was the roughest month in this dataset, with only 77% of arrivals on time. The best was October 2024 at 100%. If your dates are flexible, that 23-point gap is worth planning around.
Explore related pages
More routes from SLC
Based on 730 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.