Flights Killeen → Houston
GRK → IAH
Route overview
The flight route connects Killeen with Houston, serving a highly trafficked destination airport that sees over 40 million passengers annually. This frequent connection between the two cities ensures convenient travel options for commuters and visitors alike.
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 Killeen (GRK) → Houston (IAH) route is operated by United Airlines. FlightGuard's average computed risk is 11.1/100 (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 Killeen the average ATFM delay is 1.3 minutes.
Heading to Houston: what to expect in this direction
Flying from Killeen (GRK) to Houston (IAH) heads south-east for about 267 km, a flight time of roughly 45m.
Air-traffic congestion: departing Killeen the average ATFM delay is 1.3 min (airspace/NAS (BTS)); arriving into Houston it is 2.0 min (atfm).
Route facts
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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 GRK-IAH
Airports
Frequently asked questions about GRK-IAH
Route-specific punctuality data isn't available yet. Check your flight on FlightGuard for a real-time analysis.
The cancellation rate varies by airline and season. Check your flight risk for an up-to-date estimate.
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.
