Flights Houston → Washington
IAH → IAD
Route overview
The flight route from Houston to Washington features an on-time performance rate of 85%, with average delays of approximately 10.9 minutes per flight. Over the course of a year, this route sees around 402 flights using various aircraft models including Boeing 737-800, Boeing 767-300, Boeing 737-900, Airbus A320, and Airbus A319, serving a destination airport that handles nearly 21.4 million passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Houston (IAH) → Washington (IAD) route is operated by United Airlines. Across 526 flights monitored in recent months, 82% arrived on time (within 15 min of schedule), with an average delay of 14 minutes. The cancellation rate is 2.09%. FlightGuard's average computed risk is 27.7/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Washington the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Houston the average ATFM delay is 2.0 minutes.
Heading to Washington: what to expect in this direction
Flying from Houston (IAH) to Washington (IAD) heads north-east for about 1,913 km, a flight time of roughly 2h 49m.
Departures from Houston on this leg cluster in the morning window: about 41% of IAH-IAD flights take off then.
Air-traffic congestion: departing Houston the average ATFM delay is 2.0 min (atfm); arriving into Washington it is 2.0 min (atfm).
Across 526 tracked IAH-IAD flights, 82% left on time with an average delay of 14 min and a 2.1% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 74% | 10 min | 6.9% |
Airlines operating IAH-IAD
Airports
Frequently asked questions about IAH-IAD
On the Houston (IAH) -> Washington (IAD) route, on-time performance is 82% with an average delay of 14 minutes, based on 526 tracked flights.
The cancellation rate on Houston-Washington is 2.09% across 526 monitored flights.
The route is operated by 1 airline: United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Washington, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
