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Cheap flights from Houston to Porto Alegre from $502

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 6/5. 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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Find the cheapest flights from Houston to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
GOL Logo
5:10 am - 11:45 am
IAH
-
POA
28h 35m
2 stops
GOL Logo
5:20 am - 11:36 pm
POA
-
IAH
20h 16m
2 stops
$1,122GOL
Wed, Jul 29 - Tue, Aug 18
GOL Logo
5:10 am - 11:45 am
IAH
-
POA
28h 35m
2 stops
GOL Logo
5:20 am - 11:36 pm
POA
-
IAH
20h 16m
2 stops
$1,192GOL
Wed, Jul 29 - Tue, Aug 18
GOL Logo
6:12 pm - 11:40 pm
IAH
-
POA
27h 28m
2 stops
GOL Logo
5:20 am - 11:36 pm
POA
-
IAH
20h 16m
2 stops
$1,196GOL
Wed, Jul 29 - Tue, Aug 18
GOL Logo
11:20 am - 11:40 pm
IAH
-
POA
34h 20m
2 stops
GOL Logo
5:20 am - 11:36 pm
POA
-
IAH
20h 16m
2 stops
$1,206GOL
Wed, Jul 29 - Tue, Aug 18
Multiple Airlines Logo
8:39 pm - 2:15 pm
IAH
-
POA
39h 36m
2 stops
Multiple Airlines Logo
8:05 pm - 6:07 pm
POA
-
IAH
48h 02m
2 stops
$1,274Multiple Airlines
Wed, Jul 29 - Tue, Aug 18
United Airlines Logo
6:40 pm - 11:40 am
IAH
-
POA
15h 00m
1 stop
United Airlines Logo
5:10 pm - 5:45 am
POA
-
IAH
14h 35m
1 stop
$1,527United Airlines
Mon, Jun 15 - Wed, Jun 17
United Airlines Logo
6:40 pm - 2:05 pm
IAH
-
POA
17h 25m
1 stop
United Airlines Logo
3:55 pm - 8:18 am
POA
-
IAH
42h 23m
2 stops
$1,549United Airlines
Mon, Jun 15 - Thu, Jun 18
United Airlines Logo
8:20 pm - 2:20 pm
IAH
-
POA
40h 00m
2 stops
United Airlines Logo
3:55 pm - 8:18 am
POA
-
IAH
42h 23m
2 stops
$1,570United Airlines
Mon, Jun 15 - Thu, Jun 18
LATAM Airlines Logo
10:09 am - 6:15 am
HOU
-
POA
18h 06m
2 stops
LATAM Airlines Logo
7:50 pm - 9:43 pm
POA
-
HOU
27h 53m
2 stops
$1,618LATAM Airlines
Fri, Jun 19 - Fri, Jun 26
LATAM Airlines Logo
10:09 am - 6:15 pm
HOU
-
POA
30h 06m
2 stops
LATAM Airlines Logo
7:25 am - 9:14 am
POA
-
HOU
27h 49m
2 stops
$1,813LATAM Airlines
Mon, Jun 15 - Thu, Jun 18

United Airlines flights from Houston to Porto Alegre

Our best United Airlines deals on Houston to Porto Alegre flight tickets
United Airlines
Jun 15
IAH6:40 pmHouston George Bush Intcntl
15h 00m
1 stop
POA11:40 amPorto Alegre Salgado Filho
Jun 17
POA5:10 pmPorto Alegre Salgado Filho
14h 35m
1 stop
IAH5:45 amHouston George Bush Intcntl
$1,527
United Airlines
Jun 15
IAH6:40 pmHouston George Bush Intcntl
17h 25m
1 stop
POA2:05 pmPorto Alegre Salgado Filho
Jun 18
POA3:55 pmPorto Alegre Salgado Filho
42h 23m
2 stops
IAH8:18 amHouston George Bush Intcntl
$1,549
United Airlines
Jun 15
IAH8:20 pmHouston George Bush Intcntl
40h 00m
2 stops
POA2:20 pmPorto Alegre Salgado Filho
Jun 18
POA3:55 pmPorto Alegre Salgado Filho
42h 23m
2 stops
IAH8:18 amHouston George Bush Intcntl
$1,570

LATAM Airlines flights from Houston to Porto Alegre

Our best LATAM Airlines deals on Houston to Porto Alegre flight tickets
LATAM Airlines
Jun 19
HOU10:09 amHouston Hobby
18h 06m
2 stops
POA6:15 amPorto Alegre Salgado Filho
Jun 26
POA7:50 pmPorto Alegre Salgado Filho
27h 53m
2 stops
HOU9:43 pmHouston Hobby
$1,618
LATAM Airlines
Jun 15
IAH4:20 pmHouston George Bush Intcntl
23h 55m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Jun 18
POA7:25 amPorto Alegre Salgado Filho
27h 12m
2 stops
IAH8:37 amHouston George Bush Intcntl
$1,813
LATAM Airlines
Jun 15
IAH2:43 pmHouston George Bush Intcntl
25h 32m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Jun 17
POA2:20 pmPorto Alegre Salgado Filho
25h 18m
2 stops
IAH1:38 pmHouston George Bush Intcntl
$1,815

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 May 7, 2026.
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

Cheapest round-trip

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Wed 7/29

5:10 am-11:45 am

2 stops28h 35m

Porto Alegre Salgado Filho

Tue 8/18

5:20 am-11:36 pm

2 stops20h 16m

$1,122

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Wed 7/29

5:10 am-11:45 am

2 stops28h 35m

Porto Alegre Salgado Filho

Tue 8/18

5:20 am-11:36 pm

2 stops20h 16m

$1,192

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Wed 7/29

6:12 pm-11:40 pm

2 stops27h 28m

Porto Alegre Salgado Filho

Tue 8/18

5:20 am-11:36 pm

2 stops20h 16m

$1,196

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Wed 7/29

11:20 am-11:40 pm

2 stops34h 20m

Porto Alegre Salgado Filho

Tue 8/18

5:20 am-11:36 pm

2 stops20h 16m

$1,206

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Wed 7/29

8:39 pm-2:15 pm

2 stops39h 36m

Porto Alegre Salgado Filho

Tue 8/18

8:05 pm-6:07 pm

2 stops48h 02m

$1,274
Quickest round-trip

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 6/15

6:40 pm-11:40 am

1 stop15h 00m

Porto Alegre Salgado Filho

Wed 6/17

5:10 pm-5:45 am

1 stop14h 35m

$1,527

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 6/15

6:40 pm-2:05 pm

1 stop17h 25m

Porto Alegre Salgado Filho

Thu 6/18

3:55 pm-8:18 am

2 stops42h 23m

$1,549

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 6/15

8:20 pm-2:20 pm

2 stops40h 00m

Porto Alegre Salgado Filho

Thu 6/18

3:55 pm-8:18 am

2 stops42h 23m

$1,570

HoustonPorto Alegre

HOU - POA

HOUPOA

Houston Hobby

Fri 6/19

10:09 am-6:15 am

2 stops18h 06m

Porto Alegre Salgado Filho

Fri 6/26

7:50 pm-9:43 pm

2 stops27h 53m

$1,618

HoustonPorto Alegre

HOU - POA

HOUPOA

Houston Hobby

Mon 6/15

10:09 am-6:15 pm

2 stops30h 06m

Porto Alegre Salgado Filho

Thu 6/18

7:25 am-9:14 am

2 stops27h 49m

$1,813

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?

GOL, American Airlines, and LATAM 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

17h 25m

Direct flights

None
The fastest flight from Houston to Porto Alegre takes 17h 25m
There are no direct flights from Houston to Porto Alegre. There are no popular flight routes from Houston to Porto Alegre.
Search flight deals

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 17h 25m.

  • 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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