BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
SLC→LWS

Salt Lake City, UT (SLC) to Lewiston, ID (LWS) flight delay odds

92.3% of 365 official scheduled SLC-to-LWS flights arrived on time; 3.6% arrived at least 30 minutes late and 0.0% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
92.3%arrived on time
3.6%30+ min late
0.0%cancelled
365scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late2.5%all scheduled flights
120+ minutes late0.8%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival-7.1 mincompleted flights

Which departure time was most reliable for SLC to LWS?

Among qualifying SLC-to-LWS departure window results, Afternoon had the highest on-time rate: 94.6% of 130 flights. Late morning was lowest at 91.1% across 235 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning23591.1%4.3%0.0%
Afternoon13094.6%2.3%0.0%

Which weekday was most reliable for SLC to LWS?

Among qualifying SLC-to-LWS weekday results, Monday had the highest on-time rate: 100.0% of 52 flights. Sunday was lowest at 88.5% across 52 flights.

DayFlightsOn time30+ minCancelled
Monday52100.0%0.0%0.0%
Tuesday5388.7%7.5%0.0%
Wednesday5288.5%5.8%0.0%
Thursday5298.1%0.0%0.0%
Friday5292.3%1.9%0.0%
Saturday5290.4%3.8%0.0%
Sunday5288.5%5.8%0.0%

Which airline was most reliable for SLC to LWS?

Only SkyWest Airlines met the SLC-to-LWS airline threshold: 92.3% of 365 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines36592.3%3.6%0.0%

Which month was most reliable for SLC to LWS?

Among qualifying SLC-to-LWS month results, October 2025 had the highest on-time rate: 100.0% of 31 flights. March 2026 was lowest at 80.6% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253190.3%3.2%0.0%
August 20253187.1%6.5%0.0%
September 202530100.0%0.0%0.0%
October 202531100.0%0.0%0.0%
November 20253096.7%0.0%0.0%
December 20253187.1%6.5%0.0%
January 20263193.5%6.5%0.0%
February 20262892.9%3.6%0.0%
March 20263180.6%6.5%0.0%
April 20263090.0%3.3%0.0%
May 20263196.8%0.0%0.0%
June 20263093.3%6.7%0.0%

What drove SLC to LWS delay minutes?

Airline was the largest recorded SLC-to-LWS delay category, accounting for 75.6% of 1,631 BTS-attributed delay minutes during July 2025–June 2026.

Airline75.6%
Late aircraft0.0%
National airspace4.1%
Weather20.3%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.