Route
IAH → DCA
George Bush Intercontinental Airport Ronald Reagan Washington National Airport
How punctual is this route?
- On-time arrivals
- 75.3%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 79 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,337
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 39%
- Late-arriving aircraft 31%
- Airline (crew, maintenance, cleaning) 19%
- Extreme weather 11%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.5% | 272 |
| October 2025 | 77.9% | 291 |
| November 2025 | 75.9% | 270 |
| December 2025 | 83.0% | 273 |
| January 2026 | 84.0% | 282 |
| February 2026 | 76.8% | 259 |
| March 2026 | 73.2% | 289 |
| April 2026 | 79.8% | 283 |
| May 2026 | 74.4% | 289 |
| June 2026 | 63.2% | 280 |
| July 2026 | 65.8% | 284 |
| August 2026 | 68.5% | 265 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 2,385 | 76.7% | 0.7% | 73 min |
| Republic Airways | 513 | 75.9% | 4.9% | 68 min |
| OH | 439 | 66.3% | 8.2% | 113 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA1627
33% late · 363 flights
-
UA654
22% late · 314 flights
-
UA2224
29% late · 303 flights
-
UA2311
17% late · 249 flights
-
UA512
4% late · 225 flights
-
UA625
31% late · 153 flights
-
YX4790
10% late · 118 flights
-
UA1540
18% late · 94 flights
-
YX4766
15% late · 84 flights
-
OH5247
6% late · 75 flights
-
UA1181
26% late · 55 flights
-
UA2472
31% late · 55 flights
-
YX4743
22% late · 50 flights
-
UA1282
23% late · 49 flights
-
UA2047
4% late · 46 flights
-
YX4618
39% late · 46 flights
-
OH5224
45% late · 45 flights
-
UA2296
44% late · 45 flights
-
OH5163
24% late · 43 flights
-
UA2670
15% late · 40 flights
-
OH5132
42% late · 38 flights
-
YX4673
49% late · 38 flights
-
OH5599
16% late · 37 flights
-
UA1193
26% late · 37 flights
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