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Route Reliability

Salt Lake City → Houston

SLC–IAH · 1,195 miles · Salt Lake City International Airport to George Bush Intercontinental Airport

88
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
3 min
Average arrival delay
0.7%
Cancelled
2,186
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.United Airlines87%1,175 flights
  2. 2.Delta Air Lines83%1,011 flights

What the data says

Morning-you made the right choice.

SLC–IAH flights departing between 6–9 AM arrived on time 92% of the time, versus 80% between 3–6 PM.

Saturday has been the better bet.

A small edge: 88% on time on Saturdays against 82% on Wednesdays.

United Airlines has a slight edge here.

United Airlines arrived on time 87% of the time on this route; Delta Air Lines managed 83%.

Slipping a little lately.

SLC–IAH flights arrived on time 84% of the time over the last three months in the data, compared with 91% in the three months before that.

Best historical flights

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

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon83%(317 flights)
  • Tue85%(310 flights)
  • Wed82%(308 flights)
  • Thu83%(314 flights)
  • Fri86%(317 flights)
  • Sat88%(276 flights)
  • Sun86%(319 flights)
On-time by departure window
  • 6–9 AM92%(709 flights)
  • 9 AM–12 PM89%(116 flights)
  • 12–3 PM81%(614 flights)
  • 3–6 PM80%(691 flights)
  • 6–9 PM84%(31 flights)
On-time trend by month
80%
May

Jun 80% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%170
July 202571%177
August 202577%173
September 202592%167
October 202589%175
November 202586%154
December 202590%205
January 202691%197
February 202691%185
March 202685%207
April 202686%175
May 202680%176

Same trip, other airports

Keep nerding

Based on 2,186 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.