Route Reliability
Houston → Phoenix
IAH–PHX · 1,009 miles · George Bush Intercontinental Airport to Phoenix Sky Harbor International Airport
- 79%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 1.0%
- Cancelled
- 2,913
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines80%1,792 flights
- 2.American Airlines80%856 flights
- 3.Frontier Airlines68%265 flights
What the data says
Morning-you made the right choice.
IAH–PHX flights departing between 6–9 AM arrived on time 88% of the time, versus 65% between 9 PM–12 AM.
Sunday scaries are real for this one.
IAH–PHX flights arrived on time 84% of the time on Tuesdays. On Sundays: 74%.
United Airlines runs this route best.
United Airlines arrived on time 80% of the time on this route; Frontier Airlines managed 68%.
Recent months have been rougher.
IAH–PHX flights arrived on time 81% of the time over the last three months in the data, compared with 89% 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
- Mon77%(451 flights)
- Tue84%(354 flights)
- Wed82%(357 flights)
- Thu81%(442 flights)
- Fri76%(428 flights)
- Sat80%(389 flights)
- Sun74%(459 flights)
- 6–9 AM88%(528 flights)
- 9 AM–12 PM85%(399 flights)
- 12–3 PM80%(866 flights)
- 3–6 PM81%(359 flights)
- 6–9 PM67%(628 flights)
- 9 PM–12 AM65%(100 flights)
Jun 60% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 60% | 211 |
| July 2025 | 71% | 212 |
| August 2025 | 73% | 195 |
| September 2025 | 84% | 188 |
| October 2025 | 76% | 253 |
| November 2025 | 71% | 262 |
| December 2025 | 88% | 270 |
| January 2026 | 87% | 250 |
| February 2026 | 92% | 241 |
| March 2026 | 79% | 296 |
| April 2026 | 85% | 246 |
| May 2026 | 77% | 256 |
Same trip, other airports
Keep nerding
Based on 2,913 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.