How does KAYAK find such low prices on flights from Washington to Porto Alegre?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Porto Alegre. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Porto Alegre?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from Washington is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Washington to Porto Alegre?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto Alegre with an airline and back to Washington with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Porto Alegre?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto Alegre from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$986 CHEAP FLIGHTS from Washington to Porto Alegre

POA

KAYAK searches hundreds of travel sites at once for deals on flights to Porto Alegre

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals

Cheap Flights from Washington to Porto Alegre

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

Recent round-trip flight deals from Washington to Porto Alegre

Tue, Apr 21 - Tue, Apr 28

11:15 pm - 11:40 am

SEA

POA

32h 25m

2 stops

4:45 am - 10:58 am

POA

SEA

34h 13m

2 stops

$986LATAM Airlines

Tue, Apr 21 - Tue, Apr 28

10:20 am - 4:30 pm

SEA

POA

26h 10m

3 stops

4:05 pm - 9:53 pm

POA

SEA

33h 48m

2 stops

$1,085Multiple Airlines

Thu, Apr 23 - Wed, Apr 29

12:22 pm - 12:20 am

SEA

POA

31h 58m

2 stops

1:35 am - 11:29 pm

POA

SEA

25h 54m

2 stops

$1,096Copa Airlines

Tue, Sep 1 - Wed, Sep 16

10:35 am - 5:00 pm

PDX

POA

26h 25m

2 stops

2:20 pm - 1:49 pm

POA

PDX

27h 29m

2 stops

$1,189Multiple Airlines

Tue, Apr 21 - Tue, Apr 28

11:59 pm - 2:40 pm

PDX

POA

34h 41m

2 stops

5:10 pm - 12:34 pm

POA

PDX

23h 24m

2 stops

$1,341United Airlines

Tue, Apr 21 - Tue, Apr 28

10:20 am - 4:30 pm

SEA

POA

26h 10m

3 stops

5:10 pm - 3:05 pm

POA

SEA

25h 55m

3 stops

$1,357Air Canada

Mon, Apr 20 - Mon, Apr 27

6:30 am - 1:50 pm

SEA

POA

27h 20m

2 stops

4:05 pm - 12:47 pm

POA

SEA

24h 42m

2 stops

$1,466United Airlines

Thu, Apr 23 - Thu, Apr 30

10:20 am - 4:25 pm

SEA

POA

26h 05m

3 stops

4:05 pm - 2:20 pm

POA

SEA

26h 15m

3 stops

$1,599Air Canada

Tue, Sep 1 - Wed, Sep 16

7:40 am - 10:40 am

PDX

POA

23h 00m

3 stops

6:25 pm - 12:09 pm

POA

PDX

21h 44m

2 stops

$2,500American Airlines

Tue, Sep 1 - Wed, Sep 16

9:59 am - 12:15 pm

PDX

POA

22h 16m

3 stops

6:25 pm - 2:20 pm

POA

PDX

23h 55m

3 stops

$3,595American Airlines

Useful Info

Cheapest flight	$986

Flight from Seattle to Porto Alegre

How does KAYAK find such low prices on flights from Washington to Porto Alegre?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Porto Alegre.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Porto Alegre?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Washington to Porto Alegre?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto Alegre with an airline and back to Washington with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Porto Alegre?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto Alegre from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Porto Alegre

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Porto Alegre

Porto Alegre (POA)

POA

$986 Find Cheap Flights from Washington to Porto Alegre

KAYAK searches hundreds of travel sites at once for deals on flights to Porto Alegre

Cheap Flights from Washington to Porto Alegre

Recent round-trip flight deals from Washington to Porto Alegre

Good to know

FAQs for booking flights from Washington to Porto Alegre

How does KAYAK find such low prices on flights from Washington to Porto Alegre?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington to Porto Alegre.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington to Porto Alegre?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Washington to Porto Alegre?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto Alegre with an airline and back to Washington with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington to Porto Alegre?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto Alegre from Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Porto Alegre

Information on the airport you'll fly into in Porto Alegre

Cabin class types available on flights to Washington

Complete your trip to Porto Alegre with a hotel stay or car rental

Find direct flights for Porto Alegre

Flights to other popular destinations

Flights from domestic origins to Porto Alegre

Choose which airport to fly into in Porto Alegre

Find deals for your return flight