Salt Lake City (SLC) to Lewiston (LWS): On-Time Performance
Data through July 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 81% in March 2026. Across the full period the route averages 92% on-time against a national 78%.
- On-time
- 92%
- 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 | 97% | 1 min |
| Tuesday | 90% | 8 min |
| Wednesday | 89% | 4 min |
| Thursday | 95% | 5 min |
| Friday | 93% | 4 min |
| Saturday | 94% | 5 min |
| Sunday | 89% | 6 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 system2%
- Weather12%
Frequently asked questions
- How often are flights from SLC to LWS delayed?
- 8% of SLC–LWS 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 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 8% of the time.
- How often are SLC to LWS flights cancelled?
- 0% 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 LWS?
- March 2026 was the roughest month in this dataset, with only 81% of arrivals on time. The best was October 2024 at 100%. If your dates are flexible, that 19-point gap is worth planning around.
Explore related pages
More routes from SLC
Other ways to fly to Lewiston (LWS)
Related guides
Based on 761 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.