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Cheap flights from Portland to Porto Alegre from $1,398

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Porto Alegre departing on 10/15. 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 Portland to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
10:00 am - 6:15 pm
PDX
-
POA
28h 15m
2 stops
LATAM Airlines Logo
12:10 pm - 1:25 pm
POA
-
PDX
29h 15m
2 stops
$1,398LATAM Airlines
Thu, Oct 15 - Mon, Oct 19
LATAM Airlines Logo
11:40 am - 6:15 pm
PDX
-
POA
26h 35m
2 stops
LATAM Airlines Logo
11:00 am - 7:08 pm
POA
-
PDX
36h 08m
2 stops
$1,470LATAM Airlines
Thu, Oct 15 - Mon, Oct 19
LATAM Airlines Logo
10:00 am - 6:15 pm
PDX
-
POA
28h 15m
2 stops
LATAM Airlines Logo
6:40 am - 11:50 am
POA
-
PDX
33h 10m
2 stops
$1,492LATAM Airlines
Thu, Oct 15 - Mon, Oct 19
LATAM Airlines Logo
7:00 am - 9:05 pm
PDX
-
POA
34h 05m
2 stops
LATAM Airlines Logo
7:05 pm - 12:18 pm
POA
-
PDX
21h 13m
2 stops
$1,496LATAM Airlines
Thu, Oct 15 - Mon, Oct 19
LATAM Airlines Logo
7:00 am - 5:00 pm
PDX
-
POA
30h 00m
2 stops
LATAM Airlines Logo
10:05 am - 1:25 pm
POA
-
PDX
31h 20m
2 stops
$1,507LATAM Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
6:56 am - 4:20 pm
PDX
-
POA
29h 24m
2 stops
United Airlines Logo
3:25 pm - 3:05 pm
POA
-
PDX
27h 40m
3 stops
$1,615United Airlines
Thu, Oct 15 - Mon, Oct 19
United Airlines Logo
7:00 am - 10:55 am
PDX
-
POA
47h 55m
2 stops
United Airlines Logo
5:10 pm - 11:38 am
POA
-
PDX
22h 28m
2 stops
$1,807United Airlines
Tue, Jun 23 - Tue, Jun 30
United Airlines Logo
12:50 pm - 3:30 pm
PDX
-
POA
46h 40m
3 stops
United Airlines Logo
3:30 pm - 11:38 am
POA
-
PDX
24h 08m
2 stops
$1,833United Airlines
Tue, Jun 23 - Tue, Jun 30
United Airlines Logo
10:56 am - 4:20 pm
PDX
-
POA
25h 24m
2 stops
United Airlines Logo
3:25 pm - 3:05 pm
POA
-
PDX
27h 40m
3 stops
$2,017United Airlines
Thu, Oct 15 - Mon, Oct 19

United Airlines flights from Portland to Porto Alegre

Our best United Airlines deals on Portland to Porto Alegre flight tickets
United Airlines
Oct 15
PDX8:25 amPortland
27h 55m
2 stops
POA4:20 pmPorto Alegre Salgado Filho
Oct 19
POA3:25 pmPorto Alegre Salgado Filho
27h 40m
3 stops
PDX3:05 pmPortland
$1,615
United Airlines
Jun 23
PDX7:00 amPortland
47h 55m
2 stops
POA10:55 amPorto Alegre Salgado Filho
Jun 30
POA5:10 pmPorto Alegre Salgado Filho
22h 28m
2 stops
PDX11:38 amPortland
$1,807
United Airlines
Jun 23
PDX12:50 pmPortland
46h 40m
3 stops
POA3:30 pmPorto Alegre Salgado Filho
Jun 30
POA3:30 pmPorto Alegre Salgado Filho
24h 08m
2 stops
PDX11:38 amPortland
$1,833

LATAM Airlines flights from Portland to Porto Alegre

Our best LATAM Airlines deals on Portland to Porto Alegre flight tickets
LATAM Airlines
Oct 15
PDX10:00 amPortland
28h 15m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Oct 19
POA12:10 pmPorto Alegre Salgado Filho
29h 15m
2 stops
PDX1:25 pmPortland
$1,398
LATAM Airlines
Oct 15
PDX11:40 amPortland
26h 35m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Oct 19
POA11:00 amPorto Alegre Salgado Filho
36h 08m
2 stops
PDX7:08 pmPortland
$1,470
LATAM Airlines
Oct 15
PDX10:00 amPortland
28h 15m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Oct 19
POA6:40 amPorto Alegre Salgado Filho
33h 10m
2 stops
PDX11:50 amPortland
$1,492

momondo Fare Finder

 
Customize your flight search to find flights from Portland 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 12, 2026.
Use the filters below to find and compare flights from Portland to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Thu 10/15

10:00 am-6:15 pm

2 stops28h 15m

Porto Alegre Salgado Filho

Mon 10/19

12:10 pm-1:25 pm

2 stops29h 15m

$1,398

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Thu 10/15

11:40 am-6:15 pm

2 stops26h 35m

Porto Alegre Salgado Filho

Mon 10/19

11:00 am-7:08 pm

2 stops36h 08m

$1,470

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Thu 10/15

10:00 am-6:15 pm

2 stops28h 15m

Porto Alegre Salgado Filho

Mon 10/19

6:40 am-11:50 am

2 stops33h 10m

$1,492

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Thu 10/15

7:00 am-9:05 pm

2 stops34h 05m

Porto Alegre Salgado Filho

Mon 10/19

7:05 pm-12:18 pm

2 stops21h 13m

$1,496

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Thu 10/15

7:00 am-5:00 pm

2 stops30h 00m

Porto Alegre Salgado Filho

Mon 10/19

10:05 am-1:25 pm

2 stops31h 20m

$1,507

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Thu 10/15

6:56 am-4:20 pm

2 stops29h 24m

Porto Alegre Salgado Filho

Mon 10/19

3:25 pm-3:05 pm

3 stops27h 40m

$1,615

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Tue 6/23

7:00 am-10:55 am

2 stops47h 55m

Porto Alegre Salgado Filho

Tue 6/30

5:10 pm-11:38 am

2 stops22h 28m

$1,807

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Tue 6/23

12:50 pm-3:30 pm

3 stops46h 40m

Porto Alegre Salgado Filho

Tue 6/30

3:30 pm-11:38 am

2 stops24h 08m

$1,833
Quickest round-trip

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Thu 10/15

10:56 am-4:20 pm

2 stops25h 24m

Porto Alegre Salgado Filho

Mon 10/19

3:25 pm-3:05 pm

3 stops27h 40m

$2,017

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Portland to Porto Alegre

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Porto Alegre according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Porto Alegre (PDX to POA) flight deals and tips

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

Fastest flight time

27h 55m

Direct flights

None
The fastest flight from Portland to Porto Alegre takes 27h 55m
There are no direct flights from Portland to Porto Alegre. There are no popular flight routes from Portland to Porto Alegre.
Search flight deals

Frequently asked questions about flying from Portland to Porto Alegre

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

    A flight from Portland to Porto Alegre Salgado Filho will travel around 6866.6 mi. 27h 55m is a normal flight duration for this route.

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

    Prices for flights from Portland Airport to Porto Alegre Salgado Filho Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Portland Airport 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 Portland Airport to Porto Alegre Salgado Filho Airport.

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

    The travel and health documents required for your trip to Porto Alegre Salgado Filho Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Porto Alegre Salgado Filho Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Frequently asked questions about flying from Portland to Porto Alegre

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

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Portland from Porto Alegre. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

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

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portland to Porto Alegre for you.

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

Flights from Portland to Porto Alegre with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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

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

If you are simply researching potential flights to Porto Alegre, momondo offers a useful price alert feature which will track prices for flights to Porto Alegre from Portland and alert you when they change.

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