Route Reliability
Houston → Washington
IAH–DCA · 1,208 miles · George Bush Intercontinental Airport to Ronald Reagan Washington National Airport
- 76%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 1.8%
- Cancelled
- 3,120
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.United Airlines76%2,413 flights
- 2.American Airlines75%707 flights
What the data says
Morning-you made the right choice.
IAH–DCA flights departing between 6–9 AM arrived on time 90% of the time, versus 65% between 3–6 PM.
Friday is doing you no favors.
IAH–DCA flights arrived on time 81% of the time on Saturdays. On Fridays: 73%.
Not much between United Airlines and American Airlines.
On this route they all land within 75% to 76% on time. Pick on schedule and price.
Slipping a little lately.
IAH–DCA flights arrived on time 77% of the time over the last three months in the data, compared with 82% 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
- Mon76%(459 flights)
- Tue80%(467 flights)
- Wed76%(466 flights)
- Thu74%(459 flights)
- Fri73%(460 flights)
- Sat81%(292 flights)
- Sun73%(448 flights)
- 3–6 AM—(8 flights)
- 6–9 AM90%(596 flights)
- 9 AM–12 PM80%(687 flights)
- 12–3 PM77%(488 flights)
- 3–6 PM65%(568 flights)
- 6–9 PM67%(704 flights)
Jun 64% → May 75% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 64% | 193 |
| July 2025 | 59% | 198 |
| August 2025 | 63% | 206 |
| September 2025 | 81% | 272 |
| October 2025 | 78% | 290 |
| November 2025 | 77% | 261 |
| December 2025 | 83% | 271 |
| January 2026 | 85% | 263 |
| February 2026 | 77% | 254 |
| March 2026 | 74% | 276 |
| April 2026 | 81% | 282 |
| May 2026 | 75% | 285 |
Same trip, other airports
Keep nerding
Based on 3,120 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.