Flights Dallas → Houston
DAL → IAH
Route overview
The flight route connects Dallas to Houston, serving two major cities in Texas. The destination airport sees an impressive annual passenger traffic of 40,979,422 passengers, underscoring its significance as a key travel hub.
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 Dallas (DAL) → Houston (IAH) route is operated by United Airlines. Across 99 flights monitored in recent months, 79% arrived on time (within 15 min of schedule), with an average delay of 16 minutes. The cancellation rate is 5.05%. FlightGuard's average computed risk is 13.3/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Houston the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Dallas the average ATFM delay is 2.0 minutes.
Heading to Houston: what to expect in this direction
Flying from Dallas (DAL) to Houston (IAH) heads south-east for about 349 km, a flight time of roughly 51m.
Departures from Dallas on this leg cluster in the overnight window: about 36% of DAL-IAH flights take off then.
Air-traffic congestion: departing Dallas the average ATFM delay is 2.0 min (atfm); arriving into Houston it is 2.0 min (atfm).
Across 99 tracked DAL-IAH flights, 79% left on time with an average delay of 16 min and a 5.0% 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 DAL-IAH
Frequently asked questions about DAL-IAH
On the Dallas (DAL) -> Houston (IAH) route, on-time performance is 79% with an average delay of 16 minutes, based on 99 tracked flights.
The cancellation rate on Dallas-Houston is 5.05% across 99 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 Houston, 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.
