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Cheap flights from Houston to Porto Alegre from $745

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Porto Alegre departing on 12/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

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Cheap round-trip flights

Multiple Airlines Logo
HO1-POA
5046 mimulti-stop
Multiple Airlines Logo
POA-HO1
5046 mimulti-stop
Multiple Airlines
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United Airlines flights from Houston to Porto Alegre

Our best United Airlines deals on Houston to Porto Alegre flight tickets
United Airlines
Aug 5
IAH7:45 pmHouston George Bush Intcntl
15h 20m
1 stop
POA1:05 pmPorto Alegre Salgado Filho
Aug 27
POA3:25 pmPorto Alegre Salgado Filho
16h 15m
1 stop
IAH5:40 amHouston George Bush Intcntl
$1,600
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United Airlines
Aug 5
IAH7:45 pmHouston George Bush Intcntl
15h 20m
1 stop
POA1:05 pmPorto Alegre Salgado Filho
Aug 28
POA2:05 pmPorto Alegre Salgado Filho
25h 24m
2 stops
IAH1:29 pmHouston George Bush Intcntl
$1,610
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United Airlines
Aug 5
IAH12:01 pmHouston George Bush Intcntl
23h 39m
2 stops
POA1:40 pmPorto Alegre Salgado Filho
Aug 27
POA3:25 pmPorto Alegre Salgado Filho
16h 15m
1 stop
IAH5:40 amHouston George Bush Intcntl
$1,620
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Delta flights from Houston to Porto Alegre

Our best Delta deals on Houston to Porto Alegre flight tickets
Delta
Aug 5
HOU4:16 pmHouston Hobby
36h 09m
2 stops
POA6:25 amPorto Alegre Salgado Filho
Aug 28
POA7:20 amPorto Alegre Salgado Filho
27h 46m
2 stops
HOU9:06 amHouston Hobby
$1,817
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Delta
Aug 5
IAH5:59 pmHouston George Bush Intcntl
34h 26m
2 stops
POA6:25 amPorto Alegre Salgado Filho
Aug 27
POA6:55 pmPorto Alegre Salgado Filho
27h 05m
2 stops
IAH8:00 pmHouston George Bush Intcntl
$1,819
Find similar
Delta
Aug 5
IAH5:59 pmHouston George Bush Intcntl
34h 26m
2 stops
POA6:25 amPorto Alegre Salgado Filho
Aug 30
POA7:20 amPorto Alegre Salgado Filho
30h 42m
2 stops
IAH12:02 pmHouston George Bush Intcntl
$1,857
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momondo Fare Finder

 
Customize your flight search to find flights from Houston to Porto Alegre that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Houston to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Wed 12/17

5:45 am-6:30 am

3 stops21h 45m

$745

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Wed 12/17

11:22 am-9:55 am

2 stops19h 33m

$899

HoustonPorto Alegre

HOU - POA

HOUPOA

Houston Hobby

Wed 12/17

5:35 pm-5:00 pm

2 stops44h 25m

$1,026

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Wed 12/17

8:20 pm-7:40 am

1 stop32h 20m

$1,665

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto Alegre from

How to get the cheapest flight ticket from Houston to Porto Alegre

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest time of day to depart on your flight to Porto Alegre?

Our most recent data shows that the best time of day to fly to Porto Alegre is in the afternoon. Flights from Houston to Porto Alegre during this time can be as low as $1,141. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,848 on average. Flights to Porto Alegre from Houston in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Houston to Porto Alegre flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Porto Alegre

Fastest flight time

19h 33m

Direct flights

None

Airports in Porto Alegre

1 airport
The fastest flight from Houston to Porto Alegre takes 19h 33m
There are no direct flights from Houston to Porto Alegre. Popular non-direct routes for this connection are Houston Hobby Airport - Porto Alegre Salgado Filho Airport and Houston George Bush Intcntl Airport - Porto Alegre Salgado Filho Airport.
There is 1 airport near Porto Alegre: Porto Alegre Salgado Filho (POA)
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  • How far is Houston to Porto Alegre Salgado Filho by plane?

    Porto Alegre Salgado Filho is 5046.4 mi away from Houston.

  • When did momondo last update prices for flights from Houston to Porto Alegre Salgado Filho Airport?

    Prices for flights from Houston to Porto Alegre Salgado Filho Airport refresh daily.

  • How old do you have to be to fly from Houston to Porto Alegre Salgado Filho Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Porto Alegre Salgado Filho Airport.

  • What documentation or ID do you need to fly to Porto Alegre Salgado Filho Airport?

    The necessary travel and health documents for your Porto Alegre Salgado Filho Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Porto Alegre?

Finding the right flight to Porto Alegre from Houston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Porto Alegre quick and easy, saving you time and money.

Can I find flights from Houston to Porto Alegre with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Houston to Porto Alegre flights to just show those with flexible booking policies.

How can momondo help me find flights from Houston to Porto Alegre?

momondo provides multiple filters to help you find the best flight to Porto Alegre from Houston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Houston to Porto Alegre right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Porto Alegre from Houston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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