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Route Reliability

HLN → Salt Lake City

HLN–SLC · 402 miles · HLN Airport to Salt Lake City International Airport

100
Nerd Approved
WanderNerd Reliability Score
96%
Arrive within 15 minutes
9 min early
Average arrival delay
0.3%
Cancelled
725
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 96% of the time across 725 flights. No comparison to make.

What the data says

Departure time hasn't mattered much.

On-time rates stay between 96% and 97% across the day.

Tuesday has been the better bet.

A small edge: 98% on time on Tuesdays against 93% on Mondays.

It basically never cancels.

Out of 725 scheduled flights, only 0.3% were cancelled.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

The breakdown

On-time by weekday
  • Mon93%(104 flights)
  • Tue98%(104 flights)
  • Wed96%(102 flights)
  • Thu97%(101 flights)
  • Fri94%(104 flights)
  • Sat97%(103 flights)
  • Sun97%(105 flights)
On-time by departure window
  • 3–6 AM97%(365 flights)
  • 12–3 PM96%(358 flights)
On-time trend by month
100%
May

Jun 97% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%60
July 202597%62
August 202595%62
September 202598%60
October 202594%62
November 202593%57
December 202597%59
January 202698%61
February 202695%56
March 202697%62
April 202693%60
May 2026100%62

Keep nerding

Based on 725 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.