Route Reliability
Sacramento → Houston
SMF–IAH · 1,609 miles · Sacramento International Airport to George Bush Intercontinental Airport
- 91%
- Arrive within 15 minutes
- 1 min
- Average arrival delay
- 0.3%
- Cancelled
- 677
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 91% of the time across 677 flights. No comparison to make.
What the data says
Morning-you made the right choice.
SMF–IAH flights departing between 3–6 AM arrived on time 96% of the time, versus 76% between 12–3 PM.
Wednesday has been the better bet.
A small edge: 93% on time on Wednesdays against 89% on Fridays.
It basically never cancels.
Out of 677 scheduled flights, only 0.3% were cancelled.
Slipping a little lately.
SMF–IAH flights arrived on time 91% of the time over the last three months in the data, compared with 94% 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
- Mon89%(100 flights)
- Tue92%(100 flights)
- Wed93%(100 flights)
- Thu89%(99 flights)
- Fri89%(99 flights)
- Sat91%(78 flights)
- Sun93%(95 flights)
- 3–6 AM96%(300 flights)
- 6–9 AM95%(60 flights)
- 9 AM–12 PM92%(168 flights)
- 12–3 PM76%(143 flights)
Jun 83% → May 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 57 |
| July 2025 | 84% | 61 |
| August 2025 | 85% | 59 |
| September 2025 | 97% | 58 |
| October 2025 | 91% | 54 |
| November 2025 | 95% | 60 |
| December 2025 | 89% | 46 |
| January 2026 | 94% | 53 |
| February 2026 | 100% | 51 |
| March 2026 | 94% | 54 |
| April 2026 | 93% | 56 |
| May 2026 | 87% | 62 |
Same trip, other airports
Keep nerding
Based on 677 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.