Skyscanner home

Cheap flight tickets from Houston George Bush Intercntl. to Porto

Compare Houston George Bush Intercntl. to Porto flight deals

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

Book the best Porto fare with no extra fees

Flight deals from Houston George Bush Intercntl. to Porto

Looking for a cheap last-minute deal or the best return flight from Houston George Bush Intercntl. Airport to Porto Airport? If you want to travel next month, return fares start from RM3,693. Find the lowest prices on one-way and return tickets right here.
Porto.RM1,309 per passenger.Departing Tue, 1 Dec.One-way flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 1 Dec, arriving in Porto.Price includes taxes and charges.From RM1,309, select.
Porto.RM1,313 per passenger.Departing Mon, 2 Nov.One-way flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Mon, 2 Nov, arriving in Porto.Price includes taxes and charges.From RM1,313, select.
Porto.RM1,314 per passenger.Departing Wed, 14 Apr.One-way flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Wed, 14 Apr, arriving in Porto.Price includes taxes and charges.From RM1,314, select.
Porto.RM1,317 per passenger.Departing Tue, 13 Oct.One-way flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Tue, 13 Oct, arriving in Porto.Price includes taxes and charges.From RM1,317, select.
Porto.RM1,329 per passenger.Departing Tue, 2 Mar.One-way flight with Air France.Outbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Tue, 2 Mar, arriving in Porto.Price includes taxes and charges.From RM1,329, select.
Porto.RM1,333 per passenger.Departing Sun, 10 Jan.One-way flight with Air France.Outbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Sun, 10 Jan, arriving in Porto.Price includes taxes and charges.From RM1,333, select.
Porto.RM1,545 per passenger.Departing Sun, 20 Sep.One-way flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Sun, 20 Sep, arriving in Porto.Price includes taxes and charges.From RM1,545, select.
Porto.RM1,552 per passenger.Departing Wed, 12 May.One-way flight with Air France.Outbound indirect flight with Air France, departs from Houston George Bush Intercntl. on Wed, 12 May, arriving in Porto.Price includes taxes and charges.From RM1,552, select.
Porto.RM1,820 per passenger.Departing Sun, 9 Aug.One-way flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Houston George Bush Intercntl. on Sun, 9 Aug, arriving in Porto.Price includes taxes and charges.From RM1,820, select.
Porto.RM1,830 per passenger.Departing Sun, 12 Jul.One-way flight with United.Outbound indirect flight with United, departs from Houston George Bush Intercntl. on Sun, 12 Jul, arriving in Porto.Price includes taxes and charges.From RM1,830, select.
Porto.RM3,266 per passenger.Departing Wed, 17 Jun.One-way flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Houston George Bush Intercntl. on Wed, 17 Jun, arriving in Porto.Price includes taxes and charges.From RM3,266, select.

Find the cheapest month to fly from Houston George Bush Intercntl. to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston George Bush Intercntl. to Porto flights are currently cheapest in December.
Jun
from RM3,266
Jul
from RM1,830
Aug
from RM1,820
Sep
from RM1,545
Oct
from RM1,317
Nov
from RM1,313
Dec
from RM1,309
Jan
from RM1,333
Feb
Find prices
Mar
from RM1,329
Apr
from RM1,314
May
from RM1,552

Houston George Bush Intercntl. to Porto: Alternative routes

Compare routes from Houston George Bush Intercntl. to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Porto

12km from central Porto
ClosestCheapest
from RM1,309
Search flights

Vila Real

76km from central Porto
Search flights

Viseu G. Lobato

81km from central Porto
Search flights

Houston to Porto: Flight information

The things to know before you go.
Cheapest flight foundRM1,309
Cheapest month to flyDecember

Finding cheap flights from Houston George Bush Intercntl. to Porto: Frequently asked questions

The best price we found for a return flight from Houston George Bush Intercntl. to Porto is RM2,803. 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 Houston George Bush Intercntl. to Porto. But we found flights with one or more stops from RM2,805.
As of June 2026, there are no flights flying from Houston George Bush Intercntl. to Porto.
The cheapest month to fly from Houston George Bush Intercntl. to Porto is usually December.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Houston George Bush Intercntl. Airport to Porto Airport on Tuesday, 1 December 2026.
No airlines currently offer direct flights between Houston George Bush Intercntl. Airport and Porto Airport. 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 Porto 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 Porto is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, United offers the cheapest flight tickets to Porto.

Flying from George Bush Intercontinental Airport (IAH) to Porto Airport (OPO): what you need to know

  • Porto is five hours ahead of Houston and observes the UTC+0 timezone.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport with enough time to board your IAH to OPO flight.

  • You'll likely experience longer lines in popular months like July. Arriving up to four hours ahead of an international flight and two hours for domestic departures will help ensure a smooth travel experience.

  • Consider adding a stopover when booking your ticket from George Bush Intercontinental Airport to Porto Airport. Simply uncheck 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Here's where you can stop between IAH and OPO:

    • Pearson International Airport

    • Newark Liberty International Airport

    • Montreal-Pierre Elliott Trudeau International Airport

How to find the cheapest flights from George Bush Intercontinental Airport (IAH) to Porto Airport (OPO)

  • RM1,309 is currently the best price for a one-way George Bush Intercontinental Airport to Porto Airport flight. Return flights start from RM2,805. These fares can change based on availability and demand.

  • Don't leave things to the last minute. You're more likely to get cheap tickets from IAH to OPO if you book early. Airlines often have some amazing early bird discounts.

  • Finding cheap flights from George Bush Intercontinental Airport to Porto Airport is easier if you can be flexible with your trip dates. Use the 'Whole month' function to see the best prices across every month and snap up a great deal.

  • You won't have to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll let you know the moment the price changes on cheap flights from IAH to OPO.

  • Discover the ideal flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from George Bush Intercontinental Airport to Porto Airport, use the 'Sort by' tool. You can also filter results by departure and arrival times, airline, and number of stops.

Handy information about George Bush Intercontinental Airport (IAH)

Arriving at Porto Airport (OPO)

  • The last thing you need is a lengthy trip to your hotel if you're landing late on a George Bush Intercontinental Airport to Porto Airport flight. Check in to one of these accommodation options near OPO instead:

  • Grab a Porto Airport rental car and discover Porto and beyond with your own set of wheels. Klass Wagen, Goldcar and Drive & Go are top providers to choose from here.

  • Reserving your vehicle from Porto Airport about three weeks in advance increases your chances of getting a good deal.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport is roughly 16 kilometres from central Porto. The drive time takes about 20 minutes.

  • If you're using public transport, expect a journey time of around 50 minutes.

When to fly to Porto Airport (OPO)

  • August is the busiest month for flights from George Bush Intercontinental Airport to Porto Airport. To escape the crowds, travel to Porto in January.

  • When reserving your flight from George Bush Intercontinental Airport to Porto Airport, consider the kind of weather you like. August is the warmest month in Porto, with the temperature ranging from 14ºC (57ºF) to 32ºC (90ºF).

  • Search for cheap tickets from IAH to OPO in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 3ºC (37ºF) and 14ºC (57ºF) on average.

Explore more of Portugal

  • Lisbon is just one of the many places in Portugal waiting to be discovered once you've seen Porto. Around 274 kilometres away to the south, well-known attractions include Torre de Belem Garden, Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle.

  • Amadora is another must-experience destination in Portugal and is around 274 kilometres south of Porto. No trip is complete without a visit to Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge.

Plan the rest of your trip from Houston to Porto

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.