The cheapest times to fly from PDX to IAH are

  • January 1st to February 25th
  • August 6th to December 16th (except the week of November 26th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from PDX to IAH is early September. Prices can be as high as $953 for Sunday flights during mid March, or as low as $279 for Tuesday flights around early September.


When to Fly to Houston

Flying from Portland, OR (PDX) to Houston, TX (IAH) will usually cost between $296 to $557 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early September with an average ticket price of $323. Due to high demand the most expensive time to fly is mid March, with an average price of $596. Planning your trip to low-cost times can easily save you $273 on economy flights and even more on first-class flights. Generally, any price below $447 can be considered a good price for a round-trip PDX to IAH flight.

See below for a graph of average weekly prices for the PDX to IAH route. All prices are for round-trip tickets in USD.

PDX to IAH Flight Prices

Compared to other flights, the PDX to IAH flight is much cheaper than the average and costs much less than the average flight leaving from Portland. The average price per mile (for a direct flight) is $0.15, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $89 (19%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $388. Return trip prices are from the IAH to PDX flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from PDX to IAH can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 4 hour 16 minutes may be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from PDX to IAH while comparing.

Destination alternative #1: Austin – Bergstrom International Airport (AUS) in Austin, TX

  • 140 miles (225 km) away from IAH
  • Usually 39.75% less expensive than IAH
  • Nonstop flights available

See PDX to AUS flights

Destination alternative #2: Easterwood Field Airport (CLL) in College Station/Bryan, TX

  • 74 miles (119 km) away from IAH
  • Usually 11.76% less expensive than IAH
  • 1-layover flights available

See PDX to CLL flights

Destination alternative #3: Jack Brooks Regional Airport (BPT) in Beaumont/Port Arthur, TX

  • 79 miles (127 km) away from IAH
  • Usually 1.23% less expensive than IAH
  • 1-layover flights available

See PDX to BPT flights


Flight Hacking PDX to IAH

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from PDX to IAH — but Champion Traveler does!

Hack #1: Los Angeles, CA (PDX > LAX > IAH)

  • Price for both tickets: $401
  • Average savings: $46 (10.3%)

See PDX to LAX flights

Hack #2: Seattle, WA (PDX > SEA > IAH)

  • Price for both tickets: $442
  • Average savings: $5 (1.12%)

See PDX to SEA flights


Flight Questions Answered

Still have questions about flying from PDX to IAH? We’ve got answers.

Which airlines fly this route?

You can find 7 major airlines flying this route most often: Alaska, American, Delta, Frontier, JetBlue, Spirit, United, and potentially more during busy seasons.

How far away is it from George Bush Intercontinental/Houston Airport to Portland International Airport?

The distance between the two airports is roughly 1823 miles or 2934 kilometers.

How long does it take to fly from PDX to IAH?

The real-world flight time for a nonstop PDX to IAH flight is about 4 hour 16 minutes.

How many flights go between Portland, OR and Houston, TX?

It depends on the day of the week and the date, but a typical day might have around 87 available flights from PDX to IAH.


Airport Location Info


Departing Airport

Origination codePDX
Origination airport namePortland International Airport
CityPortland, OR
Countrythe United States

Return Airport

Destination codeIAH
Destination airport nameGeorge Bush Intercontinental/Houston Airport
CityHouston, TX
Countrythe United States


Late and Early Flight Data

Flights from PDX to IAH tend to depart late almost never compared to the average flight. According to our recently updated data, 13% of flights departed 5 or more minutes late, and 40% of flights left 5 or more minutes early. On average you can expect to leave IAH heading for PDX about 2 minutes late. This does significantly impact arrival time, as the average landing time in Houston, TX is about 1 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • United: 2 minutes late
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.