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Cheap flights from Houston to Porto Alegre from $1,508

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Houston to Porto Alegre departing on 3/30. 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.

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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.
Air Canada Logo
7:00 am - 1:55 pm
IAH
-
POA
28h 55m
2 stops
Air Canada Logo
4:05 pm - 8:29 pm
POA
-
IAH
30h 24m
2 stops
$1,508Air Canada
Mon, Mar 30 - Wed, Apr 8
GOL Logo
5:16 pm - 11:45 am
IAH
-
POA
16h 29m
2 stops
GOL Logo
5:30 pm - 11:49 pm
POA
-
IAH
32h 19m
2 stops
$1,516GOL
Mon, Mar 30 - Mon, Apr 6
Air Canada Logo
7:00 am - 1:55 pm
IAH
-
POA
28h 55m
2 stops
Air Canada Logo
5:10 pm - 8:29 pm
POA
-
IAH
29h 19m
2 stops
$1,583Air Canada
Mon, Mar 30 - Wed, Apr 8
GOL Logo
5:16 pm - 11:45 am
IAH
-
POA
16h 29m
2 stops
GOL Logo
5:30 pm - 11:49 pm
POA
-
IAH
32h 19m
2 stops
$1,584GOL
Mon, Mar 30 - Mon, Apr 6
GOL Logo
9:55 am - 11:45 am
IAH
-
POA
23h 50m
2 stops
GOL Logo
5:30 pm - 11:49 pm
POA
-
IAH
32h 19m
2 stops
$1,692GOL
Mon, Mar 30 - Mon, Apr 6
Copa Airlines Logo
11:59 am - 12:25 am
IAH
-
POA
34h 26m
1 stop
Copa Airlines Logo
1:35 am - 12:19 pm
POA
-
IAH
12h 44m
1 stop
$1,719Copa Airlines
Mon, Mar 30 - Sun, Apr 5
Copa Airlines Logo
9:59 am - 12:25 am
IAH
-
POA
12h 26m
1 stop
Copa Airlines Logo
1:35 am - 8:04 pm
POA
-
IAH
20h 29m
1 stop
$1,723Copa Airlines
Mon, Mar 30 - Tue, Apr 7
United Airlines Logo
6:40 pm - 4:20 pm
IAH
-
POA
19h 40m
1 stop
United Airlines Logo
2:05 pm - 5:45 am
POA
-
IAH
17h 40m
1 stop
$1,756United Airlines
Mon, Aug 24 - Thu, Aug 27
LATAM Airlines Logo
11:33 am - 12:15 pm
HOU
-
POA
22h 42m
2 stops
LATAM Airlines Logo
7:25 am - 10:23 am
POA
-
HOU
28h 58m
2 stops
$1,875LATAM Airlines
Mon, Mar 30 - Mon, Apr 6
LATAM Airlines Logo
2:13 pm - 5:15 pm
HOU
-
POA
25h 02m
2 stops
LATAM Airlines Logo
7:25 am - 10:23 am
POA
-
HOU
28h 58m
2 stops
$1,919LATAM Airlines
Mon, Mar 30 - Mon, Apr 6

LATAM Airlines flights from Houston to Porto Alegre

Our best LATAM Airlines deals on Houston to Porto Alegre flight tickets
LATAM Airlines
Apr 30
HOU6:00 amHouston Hobby
35h 20m
2 stops
POA7:20 pmPorto Alegre Salgado Filho
May 7
POA7:25 amPorto Alegre Salgado Filho
28h 02m
2 stops
HOU9:27 amHouston Hobby
$1,443
LATAM Airlines
Mar 30
HOU2:13 pmHouston Hobby
25h 02m
2 stops
POA5:15 pmPorto Alegre Salgado Filho
Apr 6
POA7:25 amPorto Alegre Salgado Filho
28h 58m
2 stops
HOU10:23 amHouston Hobby
$1,919
LATAM Airlines
Mar 30
HOU11:33 amHouston Hobby
22h 42m
2 stops
POA12:15 pmPorto Alegre Salgado Filho
Apr 6
POA7:25 amPorto Alegre Salgado Filho
28h 58m
2 stops
HOU10:23 amHouston Hobby
$1,925

Air Canada flights from Houston to Porto Alegre

Our best Air Canada deals on Houston to Porto Alegre flight tickets
Air Canada
Mar 30
IAH7:00 amHouston George Bush Intcntl
31h 30m
2 stops
POA4:30 pmPorto Alegre Salgado Filho
Apr 8
POA4:05 pmPorto Alegre Salgado Filho
30h 24m
2 stops
IAH8:29 pmHouston George Bush Intcntl
$1,582
Air Canada
Mar 30
IAH7:00 amHouston George Bush Intcntl
28h 55m
2 stops
POA1:55 pmPorto Alegre Salgado Filho
Apr 8
POA5:10 pmPorto Alegre Salgado Filho
29h 19m
2 stops
IAH8:29 pmHouston George Bush Intcntl
$1,583
Air Canada
Mar 30
IAH7:00 amHouston George Bush Intcntl
31h 30m
2 stops
POA4:30 pmPorto Alegre Salgado Filho
Apr 6
POA1:20 pmPorto Alegre Salgado Filho
33h 09m
2 stops
IAH8:29 pmHouston George Bush Intcntl
$1,672

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 March 16, 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

Mon 3/30

7:00 am-1:55 pm

2 stops28h 55m

Porto Alegre Salgado Filho

Wed 4/8

4:05 pm-8:29 pm

2 stops30h 24m

$1,508

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 3/30

5:16 pm-11:45 am

2 stops16h 29m

Porto Alegre Salgado Filho

Mon 4/6

5:30 pm-11:49 pm

2 stops32h 19m

$1,516

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 3/30

7:00 am-1:55 pm

2 stops28h 55m

Porto Alegre Salgado Filho

Wed 4/8

5:10 pm-8:29 pm

2 stops29h 19m

$1,583

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 3/30

5:16 pm-11:45 am

2 stops16h 29m

Porto Alegre Salgado Filho

Mon 4/6

5:30 pm-11:49 pm

2 stops32h 19m

$1,584

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 3/30

9:55 am-11:45 am

2 stops23h 50m

Porto Alegre Salgado Filho

Mon 4/6

5:30 pm-11:49 pm

2 stops32h 19m

$1,692

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 3/30

11:59 am-12:25 am

1 stop34h 26m

Porto Alegre Salgado Filho

Sun 4/5

1:35 am-12:19 pm

1 stop12h 44m

$1,719
Quickest round-trip

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 3/30

9:59 am-12:25 am

1 stop12h 26m

Porto Alegre Salgado Filho

Tue 4/7

1:35 am-8:04 pm

1 stop20h 29m

$1,723

HoustonPorto Alegre

IAH - POA

IAHPOA

Houston George Bush Intcntl

Mon 8/24

6:40 pm-4:20 pm

1 stop19h 40m

Porto Alegre Salgado Filho

Thu 8/27

2:05 pm-5:45 am

1 stop17h 40m

$1,756

HoustonPorto Alegre

HOU - POA

HOUPOA

Houston Hobby

Mon 3/30

11:33 am-12:15 pm

2 stops22h 42m

Porto Alegre Salgado Filho

Mon 4/6

7:25 am-10:23 am

2 stops28h 58m

$1,875

HoustonPorto Alegre

HOU - POA

HOUPOA

Houston Hobby

Mon 3/30

2:13 pm-5:15 pm

2 stops25h 02m

Porto Alegre Salgado Filho

Mon 4/6

7:25 am-10:23 am

2 stops28h 58m

$1,919

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 40m

Direct flights

None
The fastest flight from Houston to Porto Alegre takes 19h 40m
There are no direct flights from Houston to Porto Alegre. There are no popular flight routes from Houston to Porto Alegre.
Search flight deals

  • 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 19h 40m.

  • 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.

  • How do I get Price Alerts for flights from Houston to Porto Alegre?

    Price Alerts will notify you by email when the price for flights to Porto Alegre from Houston decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

  • How can I save money on flights from Houston to Porto Alegre with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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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