Route Reliability
Oklahoma City → Houston
OKC–IAH · 395 miles · Will Rogers International Airport to George Bush Intercontinental Airport
- 85%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 1.1%
- Cancelled
- 2,609
- Flights in the data
Data through May 2026.
United Airlines is the only airline in this data on this route, arriving on time 85% of the time across 2,609 flights. No comparison to make.
What the data says
Morning flights do better here.
OKC–IAH flights departing between 3–6 AM arrived on time 91% of the time, versus 77% between 3–6 PM.
Sunday scaries are real for this one.
OKC–IAH flights arrived on time 89% of the time on Wednesdays. On Sundays: 81%.
Slipping a little lately.
OKC–IAH flights arrived on time 86% of the time over the last three months in the data, compared with 90% 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
- Mon84%(382 flights)
- Tue87%(369 flights)
- Wed89%(378 flights)
- Thu82%(378 flights)
- Fri84%(380 flights)
- Sat86%(297 flights)
- Sun81%(383 flights)
- 3–6 AM91%(349 flights)
- 6–9 AM86%(412 flights)
- 9 AM–12 PM89%(366 flights)
- 12–3 PM85%(669 flights)
- 3–6 PM77%(549 flights)
- 6–9 PM87%(222 flights)
Jun 69% → May 82% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 69% | 216 |
| July 2025 | 83% | 225 |
| August 2025 | 78% | 224 |
| September 2025 | 92% | 213 |
| October 2025 | 85% | 237 |
| November 2025 | 84% | 229 |
| December 2025 | 85% | 198 |
| January 2026 | 91% | 189 |
| February 2026 | 93% | 198 |
| March 2026 | 86% | 205 |
| April 2026 | 89% | 203 |
| May 2026 | 82% | 230 |
Same trip, other airports
Keep nerding
Based on 2,609 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.