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Route Reliability

Tucson → Houston

TUS–IAH · 937 miles · Tucson International Airport to George Bush Intercontinental Airport

89
Pretty Reliable
WanderNerd Reliability Score
89%
Arrive within 15 minutes
4 min early
Average arrival delay
1.4%
Cancelled
720
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 89% of the time across 720 flights. No comparison to make.

What the data says

The 6–9 AM departure wins.

TUS–IAH flights departing between 6–9 AM arrived on time 94% of the time, versus 83% between 9 AM–12 PM.

Skip Thursday if you can.

TUS–IAH flights arrived on time 96% of the time on Tuesdays. On Thursdays: 85%.

Slipping a little lately.

TUS–IAH flights arrived on time 87% of the time over the last three months in the data, compared with 93% 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
  • Mon86%(101 flights)
  • Tue96%(103 flights)
  • Wed90%(93 flights)
  • Thu85%(102 flights)
  • Fri86%(104 flights)
  • Sat91%(103 flights)
  • Sun91%(100 flights)
On-time by departure window
  • 6–9 AM94%(349 flights)
  • 9 AM–12 PM83%(160 flights)
  • 12–3 PM87%(197 flights)
On-time trend by month
89%
May

Jun 78% → May 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202578%55
July 202585%60
August 202592%61
September 202595%60
October 202593%61
November 202590%57
December 202592%62
January 202695%57
February 202693%54
March 202684%57
April 202687%60
May 202689%62

Same trip, other airports

Keep nerding

Based on 720 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.