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Cheap flights from Houston to Porto Alegre from $553

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 9/25. 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
1 adult, Economy, 0 bags
Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Find the cheapest flights from Houston to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
GOL Logo
12:00 pm - 11:40 amIAH  Houston George Bush Intcntl-POA Porto Alegre Salgado Filho
21h 40m2 stops Miami Brasilia
GOL Logo
5:30 pm - 9:59 pmPOA  Porto Alegre Salgado Filho-IAH Houston George Bush Intcntl
30h 29m2 stops Brasilia Miami
$1,050GOL
Wed, Sep 30 - Fri, Oct 9
Air Canada Logo
12:00 pm - 2:25 pmIAH  Houston George Bush Intcntl-POA Porto Alegre Salgado Filho
24h 25m2 stops Toronto Pearson Intl Sao Paulo Guarulhos Intl
Air Canada Logo
3:25 pm - 9:52 pmPOA  Porto Alegre Salgado Filho-IAH Houston George Bush Intcntl
32h 27m2 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl
$1,094Air Canada
Thu, Oct 1 - Mon, Oct 5
Air Canada Logo
7:20 am - 3:40 pmIAH  Houston George Bush Intcntl-POA Porto Alegre Salgado Filho
30h 20m2 stops Toronto Pearson Intl Sao Paulo Guarulhos Intl
Air Canada Logo
5:10 pm - 9:52 pmPOA  Porto Alegre Salgado Filho-IAH Houston George Bush Intcntl
30h 42m2 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl
$1,094Air Canada
Thu, Oct 1 - Mon, Oct 5
GOL Logo
10:46 am - 11:35 pmIAH  Houston George Bush Intcntl-POA Porto Alegre Salgado Filho
34h 49m2 stops Miami Brasilia
GOL Logo
5:10 am - 9:59 pmPOA  Porto Alegre Salgado Filho-IAH Houston George Bush Intcntl
18h 49m2 stops Brasilia Miami
$1,155GOL
Fri, Sep 18 - Fri, Sep 25
Air Canada Logo
7:20 am - 3:40 pmIAH  Houston George Bush Intcntl-POA Porto Alegre Salgado Filho
30h 20m2 stops Toronto Pearson Intl Sao Paulo Guarulhos Intl
Air Canada Logo
5:10 pm - 9:52 pmPOA  Porto Alegre Salgado Filho-IAH Houston George Bush Intcntl
30h 42m2 stops Sao Paulo Guarulhos Intl Toronto Pearson Intl
$1,174Air Canada
Thu, Oct 1 - Mon, Oct 5
LATAM Airlines Logo
11:00 am - 6:45 pmHOU  Houston Hobby-POA Porto Alegre Salgado Filho
29h 45m2 stops Atlanta Hartsfield-Jackson Rio de Janeiro–Galeão Intl
LATAM Airlines Logo
7:35 pm - 10:08 amPOA  Porto Alegre Salgado Filho-HOU Houston Hobby
40h 33m2 stops Rio de Janeiro–Galeão Intl Atlanta Hartsfield-Jackson
$1,263LATAM Airlines
Wed, Sep 30 - Fri, Oct 9
GOL Logo
11:01 am - 11:35 amIAH  Houston George Bush Intcntl-POA Porto Alegre Salgado Filho
22h 34m2 stops Miami Brasilia
GOL Logo
5:30 am - 11:59 pmPOA  Porto Alegre Salgado Filho-IAH Houston George Bush Intcntl
20h 29m2 stops Brasilia Miami
$1,291GOL
Fri, Sep 4 - Sun, Sep 6
Multiple Airlines Logo
10:00 am - 4:45 pmIAH  Houston George Bush Intcntl-POA Porto Alegre Salgado Filho
28h 45m3 stops Montreal Pierre Elliott Trudeau Intl Sao Paulo Guarulhos Intl Curitiba Afonso Pena
Multiple Airlines Logo
7:05 pm - 4:10 pmPOA  Porto Alegre Salgado Filho-IAH Houston George Bush Intcntl
23h 05m3 stops Santiago Arturo Merino Benitez Bogotá El Dorado San Salvador El Salvador Intl
$1,302Multiple Airlines
Fri, Sep 18 - Fri, Sep 25
Multiple Airlines Logo
10:00 am - 3:05 pmIAH  Houston George Bush Intcntl-POA Porto Alegre Salgado Filho
27h 05m2 stops Montreal Pierre Elliott Trudeau Intl Sao Paulo Guarulhos Intl
Multiple Airlines Logo
7:05 pm - 4:10 pmPOA  Porto Alegre Salgado Filho-IAH Houston George Bush Intcntl
23h 05m3 stops Santiago Arturo Merino Benitez Bogotá El Dorado San Salvador El Salvador Intl
$1,310Multiple Airlines
Fri, Sep 18 - Fri, Sep 25
Copa Airlines Logo
2:26 pm - 12:20 amIAH  Houston George Bush Intcntl-POA Porto Alegre Salgado Filho
31h 54m1 stop Panama City Tocumen Intl
Copa Airlines Logo
1:20 am - 7:56 pmPOA  Porto Alegre Salgado Filho-IAH Houston George Bush Intcntl
20h 36m1 stop Panama City Tocumen Intl
$1,335Copa Airlines
Fri, Sep 18 - Thu, Sep 24

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Air Canada flights from Houston to Porto Alegre

Our best Air Canada deals on Houston to Porto Alegre flight tickets
Air Canada
Oct 1
IAH7:20 amHouston George Bush Intcntl
30h 20m
2 stops
POA3:40 pmPorto Alegre Salgado Filho
Oct 5
POA5:10 pmPorto Alegre Salgado Filho
30h 42m
2 stops
IAH9:52 pmHouston George Bush Intcntl
$1,094
Air Canada
Oct 1
IAH7:20 amHouston George Bush Intcntl
30h 20m
2 stops
POA3:40 pmPorto Alegre Salgado Filho
Oct 5
POA5:10 pmPorto Alegre Salgado Filho
30h 42m
2 stops
IAH9:52 pmHouston George Bush Intcntl
$1,174
Air Canada
Oct 1
IAH7:20 amHouston George Bush Intcntl
30h 25m
2 stops
POA3:45 pmPorto Alegre Salgado Filho
Oct 5
POA5:10 pmPorto Alegre Salgado Filho
30h 42m
2 stops
IAH9:52 pmHouston George Bush Intcntl
$1,364

United Airlines flights from Houston to Porto Alegre

Our best United Airlines deals on Houston to Porto Alegre flight tickets
United Airlines
Oct 1
IAH6:35 pmHouston George Bush Intcntl
13h 10m
1 stop
POA9:45 amPorto Alegre Salgado Filho
Oct 5
POA3:30 pmPorto Alegre Salgado Filho
16h 05m
1 stop
IAH5:35 amHouston George Bush Intcntl
$2,097
United Airlines
Oct 1
IAH5:06 pmHouston George Bush Intcntl
19h 14m
2 stops
POA2:20 pmPorto Alegre Salgado Filho
Oct 5
POA3:30 pmPorto Alegre Salgado Filho
16h 05m
1 stop
IAH5:35 amHouston George Bush Intcntl
$2,101
United Airlines
Aug 13
IAH1:45 pmHouston George Bush Intcntl
22h 35m
2 stops
POA2:20 pmPorto Alegre Salgado Filho
Aug 17
POA5:15 pmPorto Alegre Salgado Filho
14h 30m
1 stop
IAH5:45 amHouston George Bush Intcntl
$2,167

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 August 7, 2026.
Use the filters below to find and compare flights from Houston to Porto Alegre that are best for you.

Fly from

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Route

Depart

Return

Price

Cheapest round-trip

HoustonPorto Alegre

IAH Houston George Bush Intcntl - POA Porto Alegre Salgado Filho

IAHPOA

Houston George Bush Intcntl

Wed 9/30

12:00 pm-11:40 am

2 stops21h 40m

Porto Alegre Salgado Filho

Fri 10/9

5:30 pm-9:59 pm

2 stops30h 29m

$1,050

HoustonPorto Alegre

IAH Houston George Bush Intcntl - POA Porto Alegre Salgado Filho

IAHPOA

Houston George Bush Intcntl

Thu 10/1

12:00 pm-2:25 pm

2 stops24h 25m

Porto Alegre Salgado Filho

Mon 10/5

3:25 pm-9:52 pm

2 stops32h 27m

$1,094

HoustonPorto Alegre

IAH Houston George Bush Intcntl - POA Porto Alegre Salgado Filho

IAHPOA

Houston George Bush Intcntl

Thu 10/1

7:20 am-3:40 pm

2 stops30h 20m

Porto Alegre Salgado Filho

Mon 10/5

5:10 pm-9:52 pm

2 stops30h 42m

$1,094

HoustonPorto Alegre

IAH Houston George Bush Intcntl - POA Porto Alegre Salgado Filho

IAHPOA

Houston George Bush Intcntl

Fri 9/18

10:46 am-11:35 pm

2 stops34h 49m

Porto Alegre Salgado Filho

Fri 9/25

5:10 am-9:59 pm

2 stops18h 49m

$1,155

HoustonPorto Alegre

IAH Houston George Bush Intcntl - POA Porto Alegre Salgado Filho

IAHPOA

Houston George Bush Intcntl

Thu 10/1

7:20 am-3:40 pm

2 stops30h 20m

Porto Alegre Salgado Filho

Mon 10/5

5:10 pm-9:52 pm

2 stops30h 42m

$1,174

HoustonPorto Alegre

HOU Houston Hobby - POA Porto Alegre Salgado Filho

HOUPOA

Houston Hobby

Wed 9/30

11:00 am-6:45 pm

2 stops29h 45m

Porto Alegre Salgado Filho

Fri 10/9

7:35 pm-10:08 am

2 stops40h 33m

$1,263
Quickest round-trip

HoustonPorto Alegre

IAH Houston George Bush Intcntl - POA Porto Alegre Salgado Filho

IAHPOA

Houston George Bush Intcntl

Fri 9/4

11:01 am-11:35 am

2 stops22h 34m

Porto Alegre Salgado Filho

Sun 9/6

5:30 am-11:59 pm

2 stops20h 29m

$1,291

HoustonPorto Alegre

IAH Houston George Bush Intcntl - POA Porto Alegre Salgado Filho

IAHPOA

Houston George Bush Intcntl

Fri 9/18

10:00 am-4:45 pm

3 stops28h 45m

Porto Alegre Salgado Filho

Fri 9/25

7:05 pm-4:10 pm

3 stops23h 05m

$1,302

HoustonPorto Alegre

IAH Houston George Bush Intcntl - POA Porto Alegre Salgado Filho

IAHPOA

Houston George Bush Intcntl

Fri 9/18

10:00 am-3:05 pm

2 stops27h 05m

Porto Alegre Salgado Filho

Fri 9/25

7:05 pm-4:10 pm

3 stops23h 05m

$1,310

HoustonPorto Alegre

IAH Houston George Bush Intcntl - POA Porto Alegre Salgado Filho

IAHPOA

Houston George Bush Intcntl

Fri 9/18

2:26 pm-12:20 am

1 stop31h 54m

Porto Alegre Salgado Filho

Thu 9/24

1:20 am-7:56 pm

1 stop20h 36m

$1,335

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 airline that flies from Houston to Porto Alegre Salgado Filho?

LATAM Airlines, Delta, and American Airlines are the most popular carriers operating from Houston to Porto Alegre Salgado Filho

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

13h 10m

Direct flights

None
The fastest flight from Houston to Porto Alegre takes 13h 10m
There are no direct flights from Houston to Porto Alegre. There are no popular flight routes from Houston to Porto Alegre.
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Frequently asked questions about flying from Houston to Porto Alegre

  • How far is Houston to Porto Alegre Salgado Filho by plane?

    Porto Alegre Salgado Filho is 5046.4 mi away from Houston. A reasonable flight in good conditions will take 13h 10m.

  • 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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