$359 Cheap Flights from Houston (IAH) to Porto Alegre (POA)

View $359 flight on Mon, Aug 11, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Salgado Filho Intl. Airport (POA)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from Houston to Porto Alegre (IAH-POA)

Prices were available within the past 7 days and start at $359 for one-way flights and $977 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Azul
Mon, Jun 16 - Wed, Aug 13
IAH
Houston
POA
Porto Alegre
$977 Roundtrip, found 2 days ago
$977
Roundtrip
found 2 days ago
Select Azul flight, departing Mon, Jun 16 from Houston to Porto Alegre, returning Wed, Aug 13, priced at $977 found 2 days ago
Azul
Mon, Jun 16 - Wed, Aug 13
IAH
Houston
POA
Porto Alegre
$1,023 Roundtrip, found 2 days ago
$1,023
Roundtrip
found 2 days ago
Select Azul flight, departing Mon, Jun 16 from Houston to Porto Alegre, returning Wed, Aug 13, priced at $1,023 found 2 days ago
Azul
Mon, Jun 16 - Wed, Aug 13
IAH
Houston
POA
Porto Alegre
$1,035 Roundtrip, found 2 days ago
$1,035
Roundtrip
found 2 days ago
Select Azul flight, departing Mon, Jun 16 from Houston to Porto Alegre, returning Wed, Aug 13, priced at $1,035 found 2 days ago
Delta
Wed, Jul 23 - Mon, Aug 11
IAH
Houston
POA
Porto Alegre
$1,052 Roundtrip, found 20 hours ago
$1,052
Roundtrip
found 20 hours ago
Select Delta flight, departing Wed, Jul 23 from Houston to Porto Alegre, returning Mon, Aug 11, priced at $1,052 found 20 hours ago
Delta
Wed, Jul 23 - Tue, Aug 12
IAH
Houston
POA
Porto Alegre
$1,054 Roundtrip, found 20 hours ago
$1,054
Roundtrip
found 20 hours ago
Select Delta flight, departing Wed, Jul 23 from Houston to Porto Alegre, returning Tue, Aug 12, priced at $1,054 found 20 hours ago
Azul
Thu, Nov 20 - Sun, Nov 30
IAH
Houston
POA
Porto Alegre
$1,054 Roundtrip, found 1 day ago
$1,054
Roundtrip
found 1 day ago
Select Azul flight, departing Thu, Nov 20 from Houston to Porto Alegre, returning Sun, Nov 30, priced at $1,054 found 1 day ago
Azul
Mon, Jun 16 - Wed, Aug 13
IAH
Houston
POA
Porto Alegre
$1,062 Roundtrip, found 2 days ago
$1,062
Roundtrip
found 2 days ago
Select Azul flight, departing Mon, Jun 16 from Houston to Porto Alegre, returning Wed, Aug 13, priced at $1,062 found 2 days ago
GOL Linhas Aereas S.A.
Fri, Oct 31 - Sat, Nov 15
IAH
Houston
POA
Porto Alegre
$1,104 Roundtrip, found 1 day ago
$1,104
Roundtrip
found 1 day ago
Select GOL Linhas Aereas S.A. flight, departing Fri, Oct 31 from Houston to Porto Alegre, returning Sat, Nov 15, priced at $1,104 found 1 day ago
United
Tue, Jun 3 - Tue, Jun 24
IAH
Houston
POA
Porto Alegre
$1,114 Roundtrip, found 4 days ago
$1,114
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jun 3 from Houston to Porto Alegre, returning Tue, Jun 24, priced at $1,114 found 4 days ago
LATAM Airlines Group
Wed, Sep 10 - Thu, Sep 18
IAH
Houston
POA
Porto Alegre
$1,124 Roundtrip, found 1 day ago
$1,124
Roundtrip
found 1 day ago
Select LATAM Airlines Group flight, departing Wed, Sep 10 from Houston to Porto Alegre, returning Thu, Sep 18, priced at $1,124 found 1 day ago
Flights from Houston (IAH) to Porto Alegre (POA)
Origin airport
George Bush Intercontinental
Destination airport
Salgado Filho Intl.
Airlines serving
Aeromexico, Air Canada, American Airlines, Azul, Copa, Delta, GOL Linhas Aereas S.A., LATAM Airlines Group, United
Roundtrip price
$976
Distance
5060 mi

Houston to Porto Alegre Flights

The cheapest times to fly from Houston to Porto Alegre

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Porto Alegre are during the month of June. You can find some of the cheapest flights from Houston to Porto Alegre with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Houston to Porto Alegre

Sunday is one of the best days to book for cheap flights from Houston to Porto Alegre: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Houston to Porto Alegre

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Porto Alegre in 2025. You can also book with separate airlines for your outbound and return journeys, from $359 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Porto Alegre flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Porto Alegre airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Salgado Filho Intl. Airport (POA) cost?
Discover the latest flight deals from IAH to POA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAH to POA?
The cheapest flights from IAH to POA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAH to POA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from IAH to POA. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to Salgado Filho Intl. Airport (POA)?
Direct flights from George Bush Intercontinental Airport (IAH) to Salgado Filho Intl. Airport (POA) aren’t available daily, so you’ll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and pick either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from IAH to POA?
You’ll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Salgado Filho Intl. Airport (POA)?
Select a flight from George Bush Intercontinental Airport (IAH) to Salgado Filho Intl. Airport (POA) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to Salgado Filho Intl. Airport (POA) last-minute?
Holding off until right before your break to book a flight from IAH to POA generally means paying more. Although you may find some last-minute offers, there’s no guarantee. Allow some flexibility in your schedule for the best chance of snagging a bargain.
Is it cheaper to book an IAH to POA flight and hotel package?
Securing an IAH to POA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our impressive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Salgado Filho Intl. Airport (POA)?
In most instances, you can reschedule or cancel your IAH to POA flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline’s policies and fees on flight changes, or if you need more information, go to our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.