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

Helena, MT (HLN) to Salt Lake City, UT (SLC) flight delay odds

95.6% of 725 official scheduled HLN-to-SLC flights arrived on time; 2.2% arrived at least 30 minutes late and 0.3% 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
95.6%arrived on time
2.2%30+ min late
0.3%cancelled
725scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late1.7%all scheduled flights
120+ minutes late0.8%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival-9.4 mincompleted flights

Which departure time was most reliable for HLN to SLC?

Among qualifying HLN-to-SLC departure window results, Early morning had the highest on-time rate: 96.7% of 365 flights. Afternoon was lowest at 94.4% across 360 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning36596.7%1.9%0.0%
Afternoon36094.4%2.5%0.6%

Which weekday was most reliable for HLN to SLC?

Among qualifying HLN-to-SLC weekday results, Tuesday had the highest on-time rate: 97.2% of 106 flights. Saturday was lowest at 94.2% across 104 flights.

DayFlightsOn time30+ minCancelled
Monday10494.2%3.8%0.0%
Tuesday10697.2%2.8%0.0%
Wednesday10297.1%2.0%0.0%
Thursday10197.0%2.0%0.0%
Friday10494.2%1.9%0.0%
Saturday10494.2%1.0%1.0%
Sunday10495.2%1.9%1.0%

Which airline was most reliable for HLN to SLC?

Only SkyWest Airlines met the HLN-to-SLC airline threshold: 95.6% of 725 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines72595.6%2.2%0.3%

Which month was most reliable for HLN to SLC?

Among qualifying HLN-to-SLC month results, May 2026 had the highest on-time rate: 100.0% of 62 flights. November 2025 was lowest at 89.8% across 59 flights.

MonthFlightsOn time30+ minCancelled
July 20256296.8%3.2%0.0%
August 20256295.2%4.8%0.0%
September 20256098.3%1.7%0.0%
October 20256293.5%4.8%0.0%
November 20255989.8%3.4%3.4%
December 20255996.6%0.0%0.0%
January 20266198.4%0.0%0.0%
February 20265694.6%1.8%0.0%
March 20266296.8%1.6%0.0%
April 20266093.3%3.3%0.0%
May 202662100.0%0.0%0.0%
June 20266093.3%1.7%0.0%

What drove HLN to SLC delay minutes?

Airline was the largest recorded HLN-to-SLC delay category, accounting for 81.8% of 2,152 BTS-attributed delay minutes during July 2025–June 2026.

Airline81.8%
Late aircraft0.0%
National airspace4.6%
Weather13.7%
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.