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Cheap flight tickets from Porto to Houston

Compare Porto to Houston flight deals

Find the cheapest month or even day of the year to fly to Houston

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Flight deals from Porto to Houston

Looking for a cheap last-minute deal or the best return flight from Porto to Houston? Find the lowest prices on one-way and return tickets right here.
Houston.RM3,210 per passenger.Departing Fri, 6 Mar, returning Wed, 11 Mar.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Porto on Fri, 6 Mar, arriving in Houston George Bush Intercntl..Inbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Wed, 11 Mar, arriving in Porto.Price includes taxes and charges.From RM3,210, select.
Houston.RM3,345 per passenger.Departing Mon, 6 Apr, returning Mon, 13 Apr.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Porto on Mon, 6 Apr, arriving in Houston George Bush Intercntl..Inbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Mon, 13 Apr, arriving in Porto.Price includes taxes and charges.From RM3,345, select.
Houston.RM3,345 per passenger.Departing Sun, 4 Oct, returning Fri, 16 Oct.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Porto on Sun, 4 Oct, arriving in Houston George Bush Intercntl..Inbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Fri, 16 Oct, arriving in Porto.Price includes taxes and charges.From RM3,345, select.
Houston.RM3,346 per passenger.Departing Fri, 6 Nov, returning Sat, 14 Nov.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Porto on Fri, 6 Nov, arriving in Houston George Bush Intercntl..Inbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Sat, 14 Nov, arriving in Porto.Price includes taxes and charges.From RM3,346, select.
Houston.RM3,346 per passenger.Departing Mon, 31 Aug, returning Sat, 19 Sep.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Porto on Mon, 31 Aug, arriving in Houston George Bush Intercntl..Inbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Sat, 19 Sep, arriving in Porto.Price includes taxes and charges.From RM3,346, select.
Houston.RM3,346 per passenger.Departing Tue, 1 Sep, returning Fri, 18 Sep.Return flight with KLM and Air France.Outbound indirect flight with KLM, departs from Porto on Tue, 1 Sep, arriving in Houston George Bush Intercntl..Inbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Fri, 18 Sep, arriving in Porto.Price includes taxes and charges.From RM3,346, select.
Houston.RM3,348 per passenger.Departing Wed, 3 Jun, returning Mon, 15 Jun.Return flight with KLM.Outbound indirect flight with KLM, departs from Porto on Wed, 3 Jun, arriving in Houston George Bush Intercntl..Inbound indirect flight with KLM, departs from Houston George Bush Intercntl. on Mon, 15 Jun, arriving in Porto.Price includes taxes and charges.From RM3,348, select.
Houston.RM3,365 per passenger.Departing Sat, 16 May, returning Wed, 27 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Porto on Sat, 16 May, arriving in Houston George Bush Intercntl..Inbound indirect flight with Delta, departs from Houston George Bush Intercntl. on Wed, 27 May, arriving in Porto.Price includes taxes and charges.From RM3,365, select.

Find the cheapest month to fly from Porto to Houston

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Porto to Houston flights are currently cheapest in March.
Feb
Find prices
Mar
from RM3,210
Apr
from RM3,345
May
from RM3,365
Jun
from RM3,348
Jul
from RM4,587
Aug
from RM4,080
Sep
from RM3,346
Oct
from RM3,345
Nov
from RM3,346
Dec
Find prices
Jan
Find prices

Alternative Porto to Houston routes

Looking for the cheapest, fastest or easiest route from Porto to Houston? You could fly into the following airports instead.

Houston Hobby

16km from central Houston
Closest
from RM3,456
Search flights

Houston George Bush Intercntl.

25km from central Houston
Cheapest
from RM3,210
Search flights

Houston Ellington Field

28km from central Houston
Search flights

Galveston

74km from central Houston
Search flights

Porto to Houston: Flight information

The things to know before you go.
Cheapest flight foundRM3,210
Cheapest month to flyMarch

Finding cheap flights from Porto to Houston: Frequently asked questions

There are 4 airports in Houston: Houston Hobby, Houston George Bush Intercntl., Houston Ellington Field, and Galveston.
The best price we found for a return flight from Porto to Houston is RM3,210. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Porto to Houston. But we found flights with one or more stops from RM3,210.
As of February 2026, there are no flights flying from Porto to Houston.
The cheapest month to fly from Porto to Houston is usually March.
If you're flying from Porto Airport, the cheapest airport near Houston is Houston George Bush Intercntl. – which is 25.0 km away from the centre of Houston. We've found flights into this airport from RM3,210.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Porto Airport to Houston on Friday, 6 March 2026.
No airlines currently offer direct flights between Porto Airport and Houston. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around 13°C. August is typically the warmest month in Houston, when it usually averages around 34°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 6°C. The rainiest month is June.
Currently, KLM offers the cheapest flight tickets to Houston.

Travelling from Porto Airport (OPO) to Houston: what you need to know

  • The timezone in Houston is UTC-5. The city is five hours behind Porto, where Porto Airport is located.

  • Give yourself enough time to get on your OPO to Houston flight. Generally, it's best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • If you're flying during a bank holiday or another peak period, allow extra time. A good general rule is two hours ahead of domestic flights and up to four hours before international departures. Security and check-in lines will be longer.

  • We make it a breeze to book flight tickets from OPO to Houston with a stopover. To see all the options, deselect 'Direct flights only.' Next, select a flight that has a stop long enough to explore the city of your choice. Well-traveled stopover hubs include:

    • Newark Liberty International Airport (EWR)

    • Pearson International Airport (YYZ)

    • Manchester Airport (MAN)

  • Located around 11 kilometres from the centre of Porto, OPO can be reached in about 20 minutes by car, depending on traffic. Travelling on public transport will take roughly 50 minutes.

  • Planning to catch an early flight from Porto Airport to Houston? Avoid the hassle of rushing to the airport (and get some extra shut-eye) by choosing one of these hotels near OPO:

  • 74.49% of flights taking off from Porto Airport make it to their destination on schedule.

How to find the cheapest flights from Porto Airport (OPO) to Houston

  • RM2,132 is the lowest price we've found for a one-way Porto Airport to Houston flight. A return ticket right now is RM3,210. Depending on the availability and when you book, these fares may change.

  • Don't leave things to the last moment. You're more likely to find cheap flights from OPO to Houston if you book early. Airlines often offer some fantastic early bird deals.

  • Scoring cheap tickets from Porto Airport to Houston is more likely if you can be flexible with your travel plans. Try using the 'Whole month' search function to get the best prices across the month and bag an incredible deal.

  • You don't need to check every day to find out if fares have dropped when you create a Price Alert. We'll notify you as soon as there's an updated deal for cheap flights from OPO to Houston.

  • Pick your ideal arrival and departure times, number of stops and airlines with our filters. Then, sort the results for your flight from Porto Airport to Houston by 'Best,' 'Fastest' or 'Cheapest.'

Airports in Houston

George Bush Intercontinental Airport (IAH)

William P. Hobby Airport (HOU)

  • William P. Hobby Airport (HOU) is around 19 kilometres from central Houston. Following your flight from Porto Airport to Houston, it'll take you around 20 minutes to reach the heart of the city in a cab or ride-share.

  • You can expect the journey to take roughly 1 hour 40 minutes on public transport.

  • Hang the 'Do not disturb' sign on your door and rest at a hotel close to HOU. Here are a few options where you can settle in after your OPO to Houston flight:

  • The quickest way to get to where you're going is with a William P. Hobby Airport rental car. Grab a set of wheels from Easirent, Dollar or Thrifty and set off in the blink of an eye.

  • Get what you want, not just what's left over. Securing your ride from HOU four weeks in advance often means better prices and a wider range of vehicles.

  • The address for William P. Hobby Airport is 7800 Airport Boulevard.

Best time to go to Houston

  • Carefully consider your dates before locking in your flight from Porto Airport to Houston. The city buzzes during high season, but hotel rates are typically higher and top attractions can get crowded. Go to Houston in the off-season for a quieter vibe.

  • The warmest month in Houston is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Book your Porto Airport to Houston flight ticket then if that's the weather you find most pleasant.

  • Search for cheap tickets from OPO to Houston in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 5ºC (41ºF) and 19ºC (66ºF) on average.

More about Houston

Explore more of United States

  • You've visited Houston, now it's time to explore other corners of United States. Travel about 306 kilometres west to San Antonio to check off its top attractions. From The San Antonio River Walk to San Antonio Missions National Historical Park and San Fernando Cathedral, there's plenty to keep you busy.

  • Dallas is another essential stop in United States and is around 370 kilometres north of Houston. No journey is complete without visiting Dallas Arboretum and Botanical Gardens, Perot Museum of Nature and Science and Dallas Museum of Art.

Plan the rest of your trip from Porto to Houston

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.