Flights Portland → Houston
PDX → IAH
Route overview
The flight route from Portland to Houston operates with a high on-time performance rate of 91%, with an average delay of just 2.9 minutes per flight. Over the course of a year, this route sees approximately 262 flights using a variety of aircraft including Airbus A319, Boeing 737-900, Airbus A320, and Boeing 737-800, serving one of the busiest destination airports in the country with nearly 40.98 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 Portland (PDX) → Houston (IAH) route is operated by United Airlines. Across 323 flights monitored in recent months, 89% arrived on time (within 15 min of schedule), with an average delay of 6 minutes. The cancellation rate is 3.41%. FlightGuard's average computed risk is 30.2/100 (medium), 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 Portland the average ATFM delay is 2.0 minutes.
Heading to Houston: what to expect in this direction
Flying from Portland (PDX) to Houston (IAH) heads south-east for about 2,934 km, a flight time of roughly 4h 5m.
Departures from Portland on this leg cluster in the overnight window: about 80% of PDX-IAH flights take off then.
Air-traffic congestion: departing Portland the average ATFM delay is 2.0 min (atfm); arriving into Houston it is 2.0 min (atfm).
Across 323 tracked PDX-IAH flights, 89% left on time with an average delay of 6 min and a 3.4% 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 PDX-IAH
Airports
Frequently asked questions about PDX-IAH
On the Portland (PDX) -> Houston (IAH) route, on-time performance is 89% with an average delay of 6 minutes, based on 323 tracked flights.
The cancellation rate on Portland-Houston is 3.41% across 323 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.
