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Route Reliability

Salt Lake City → Houston

SLC–HOU · 1,214 miles · Salt Lake City International Airport to William P. Hobby Airport

88
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
1 min early
Average arrival delay
0.2%
Cancelled
409
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 84% of the time across 409 flights. No comparison to make.

What the data says

Morning-you made the right choice.

SLC–HOU flights departing between 3–6 AM arrived on time 96% of the time, versus 63% between 3–6 PM.

Skip Monday if you can.

SLC–HOU flights arrived on time 88% of the time on Wednesdays. On Mondays: 79%.

It basically never cancels.

Out of 409 scheduled flights, only 0.2% were cancelled.

Recent months have been rougher.

SLC–HOU flights arrived on time 72% of the time over the last three months in the data, compared with 93% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(52 flights)
  • Tue82%(51 flights)
  • Wed88%(51 flights)
  • Thu83%(52 flights)
  • Fri83%(52 flights)
  • Sat84%(73 flights)
  • Sun87%(74 flights)
On-time by departure window
  • 3–6 AM96%(106 flights)
  • 6–9 AM96%(95 flights)
  • 9 AM–12 PM66%(29 flights)
  • 12–3 PM74%(151 flights)
  • 3–6 PM63%(24 flights)
On-time trend by month
71%
May

Jun 81% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%37
July 202562%39
August 202586%35
September 2025100%34
October 202590%30
November 2025100%30
December 202587%31
January 202697%35
February 202694%32
March 202667%39
April 202678%32
May 202671%31

Same trip, other airports

Keep nerding

Based on 409 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.