Cheap flights from Houston George Bush Intcntl Airport to Portland from $81

The cheapest month to fly to Portland from Houston George Bush Intcntl Airport is in October. Flight prices, which tend to average around $237, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in October, then you should wait until September to fly from Houston George Bush Intcntl Airport, when ticket prices are also cheap, with an average price of $279.

The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $217. In the morning is when there is more demand to fly to Portland, so prices are often more expensive at around $398 per ticket.

Fly from Houston George Bush Intcntl to Portland for the best Houston George Bush Intcntl - Portland flight prices

You are more likely to see cheaper flights to Portland from Houston George Bush Intcntl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $336 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Houston George Bush Intcntl Airport for as low as $233 on momondo.

There are 4 cabin classes available to choose from on Houston George Bush Intcntl to Portland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 14% on your flight if you consider stops on a Houston George Bush Intcntl Airport to Portland flight.

Frontier, Delta, and Alaska Airlines are the most popular carriers operating from Houston George Bush Intcntl to Portland

United Airlines, Alaska Airlines and Hawaiian Airlines are the top three most popular airlines that fly to Portland from Houston George Bush Intcntl Airport according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 7 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

Dallas (DFW) was the most common stop: 69% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $215.

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 6h 14m.

Salt Lake City (SLC) has the shortest average layover time for this route: 1h 02m.

The number of flights available between Houston George Bush Intcntl Airport and Portland is 3 per day as of March 2026. The most frequent departure time is 8:00PM, with 48% of daily flights leaving in the evening.

As of March 2026, there are 24 flights per week flying from Houston George Bush Intcntl Airport to Portland. The most common day of the week flights depart is Tue, with 21% of flights taking off on this day.