Cheap Flights from Houston to Porto Alegre

Compare Houston to Porto Alegre flight deals

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

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Flight deals from Houston to Porto Alegre

Looking for a cheap last-minute deal or the best return flight from Houston to Porto Alegre? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Houston to Porto Alegre

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Houston to Porto Alegre flights are currently cheapest in May.

Houston to Porto Alegre: Alternative routes

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

Houston to Porto Alegre: Flight information

The things to know before you go.
Cheapest flight found$1,822
Cheapest month to flyMay

Finding cheap flights from Houston to Porto Alegre: Frequently asked questions

The best price we found for a return flight from Houston to Porto Alegre is $1,822. 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 to Porto Alegre. But we found flights with one stop from $1,822.
As of February 2026, there are no flights flying from Houston to Porto Alegre.
The cheapest month to fly from Houston to Porto Alegre is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Houston to Porto Alegre Airport on Wednesday, 6 May 2026.
No airlines currently offer direct flights between Houston and Porto Alegre 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 Alegre 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 Alegre is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Porto Alegre is LATAM Airlines .

Travelling from Houston to Salgado Filho International Airport (POA): What you need to know

  • There are two main airports to jet off from in Houston. Check out your options departing from George Bush Intercontinental Airport (IAH) or William P. Hobby Airport (HOU) when reserving your flight from Houston to Salgado Filho International Airport (POA).

  • Porto Alegre is two hours ahead of Houston. Salgado Filho International Airport is located in Porto Alegre, which is in the UTC-3 timezone.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Show up at the airport on time to board your flight from Houston to POA.

  • If you're travelling during a major holiday or other peak period, give yourself more time. Arrive two hours before domestic flights and up to four hours before international departures. Lines at check-in and security will be longer.

Airports in Houston

George Bush Intercontinental Airport (IAH)

  • You might be able to make your cheap flight from Houston to POA even cheaper with a stopover. Just uncheck 'Direct flights only' during your search to find cities that could split up the flight. Tocumen International Airport (PTY) is an option when flying out of George Bush Intercontinental Airport (IAH).

  • IAH is about 27 kilometres from central Houston. If you're ride-sharing, driving or catching a cab from the centre, it'll take you 20 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the journey time to be around 50 minutes.

  • Want a leisurely start to your holiday? Stay near George Bush Intercontinental Airport. Whether you have an early flight from Houston to Salgado Filho International Airport or aren't a fan of being rushed, these hotels are just what you're after:

  • When it comes to George Bush Intercontinental Airport's on-time performance, data shows 78.42% of flights complete their journey on time.

  • The address for IAH is 16930 JFK Boulevard.

William P. Hobby Airport (HOU)

About Salgado Filho International Airport (POA)

Getting from Salgado Filho International Airport (POA) to central Porto Alegre

  • Salgado Filho International Airport is about 6 kilometres from central Porto Alegre. The time it takes to get there by cab or car hire will depend on the time of day. Do a little research beforehand.

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

How to find the cheapest flights from Houston to Salgado Filho International Airport (POA)

  • The cheapest price we've found for a one-way ticket from Houston to Salgado Filho International Airport is $1,344. For a return flight on this route, the best price is $1,822. Depending on when you want to go and the availability, these fares can change.

  • Booking early is often the key to scoring a cheap flight from Houston to POA. Prices tend to rise as demand increases, so the closer your departure date, the more it could cost you.

  • If you're flexible with your travel plans, try using the 'Whole month' tool. It'll give you the cheapest price across each month when searching for your Houston to Salgado Filho International Airport ticket.

  • Finding a cheap flight ticket from Houston to POA is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll notify you as soon as there's a better deal.

  • Lock in a cheap flight from Houston to Salgado Filho International Airport by using the search filters. Select your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Houston to Salgado Filho International Airport (POA)

  • It's time to decide your travel dates for your flight from Houston to Salgado Filho International Airport (POA). October is the peak month for travel to Porto Alegre. If you prefer a quieter vibe, go in May.

  • Before locking in your Houston to POA flight ticket, consider the kind of weather you prefer. January is the warmest month in Porto Alegre, with temperatures ranging from 17ºC to 34ºC.

  • If you want cooler conditions, look for a cheap ticket from Houston to Salgado Filho International Airport in July when temperatures are between 8ºC and 23ºC.

More about Porto Alegre

Explore more of Brazil

  • Pelotas is just one of the many cities in Brazil waiting to be explored after you've seen Porto Alegre. Around 225 kilometres away to the south-west, well-known attractions include Grande Hotel de Pelotas, Centro histórico de Pelotas and Praça Dom Joaquim.

  • If there's time to check out another major stop in Brazil, consider Santa Maria, roughly 257 kilometres west of Porto Alegre. Memorial of Japanese Immigration and Culture, Municipal Park Hills and Calçadão Salvador Isaia are key reasons to visit.

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