Route
DCA → IAH
Ronald Reagan Washington National Airport George Bush Intercontinental Airport
How punctual is this route?
- On-time arrivals
- 80.3%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 83 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,333
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 45%
- Air traffic control & airport 26%
- Airline (crew, maintenance, cleaning) 22%
- Extreme weather 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.0% | 272 |
| October 2025 | 87.6% | 291 |
| November 2025 | 81.3% | 270 |
| December 2025 | 80.5% | 274 |
| January 2026 | 84.1% | 282 |
| February 2026 | 89.7% | 258 |
| March 2026 | 83.0% | 289 |
| April 2026 | 83.3% | 282 |
| May 2026 | 70.9% | 288 |
| June 2026 | 71.9% | 280 |
| July 2026 | 70.8% | 284 |
| August 2026 | 74.0% | 263 |
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 | 2,384 | 83.5% | 0.8% | 88 min |
| Republic Airways | 511 | 75.7% | 5.1% | 60 min |
| OH | 438 | 66.6% | 7.3% | 86 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA382
11% late · 362 flights
-
UA1450
7% late · 353 flights
-
UA697
9% late · 341 flights
-
UA1785
35% late · 321 flights
-
UA1381
23% late · 285 flights
-
UA2190
14% late · 198 flights
-
UA1678
30% late · 133 flights
-
YX4779
25% late · 120 flights
-
UA1077
15% late · 108 flights
-
YX4694
32% late · 83 flights
-
UA1457
9% late · 55 flights
-
UA2306
13% late · 55 flights
-
YX4743
20% late · 50 flights
-
UA1143
4% late · 47 flights
-
YX4618
21% late · 46 flights
-
OH5132
30% late · 44 flights
-
OH5029
42% late · 38 flights
-
YX4673
49% late · 38 flights
-
OH5224
18% late · 37 flights
-
OH5599
24% late · 37 flights
-
OH5639
29% late · 36 flights
-
OH5074
19% late · 34 flights
-
YX4520
28% late · 32 flights
-
YX4584
10% late · 32 flights
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