How does KAYAK find such low prices on flights from District of Columbia 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 District of Columbia 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 District of Columbia to Porto Alegre?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from District of Columbia 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 District of Columbia 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 District of Columbia 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 District of Columbia 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 District of Columbia 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>

$290 CHEAP FLIGHTS from District of Columbia 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

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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.

Cheapest round-trip

$625

United Airlines

Sun 3/1Wed 3/4

IAD - POA • 1 stop

Cheapest one-way

$290

United Airlines

Sun 5/3

IAD - POA • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Porto Alegre!

Flight Deals

Cheap Flights from District of Columbia to Porto Alegre

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from District of Columbia to Porto Alegre that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Round-trip

One-way

Recent round-trip flight deals from District of Columbia to Porto Alegre

Sun, Mar 1 - Wed, Mar 4

10:30 pm - 4:25 pm

IAD

POA

15h 55m

1 stop

3:25 pm - 6:35 am

POA

IAD

17h 10m

1 stop

$625United Airlines

Sun, Mar 1 - Thu, Mar 5

8:15 am - 4:25 pm

IAD

POA

30h 10m

2 stops

2:05 pm - 6:35 am

POA

IAD

18h 30m

1 stop

$630United Airlines

Sun, Mar 1 - Thu, Mar 5

8:15 am - 4:25 pm

IAD

POA

30h 10m

2 stops

2:05 pm - 4:09 pm

POA

IAD

28h 04m

2 stops

$640United Airlines

Sat, Feb 28 - Wed, Mar 4

5:17 pm - 4:25 pm

IAD

POA

45h 08m

2 stops

3:25 pm - 6:35 am

POA

IAD

17h 10m

1 stop

$642United Airlines

Sat, Feb 28 - Thu, Mar 5

5:17 pm - 4:25 pm

IAD

POA

45h 08m

2 stops

2:05 pm - 4:09 pm

POA

IAD

28h 04m

2 stops

$647United Airlines

Sat, Feb 28 - Sat, Mar 7

10:30 pm - 4:25 pm

IAD

POA

39h 55m

2 stops

4:55 pm - 11:05 pm

POA

IAD

32h 10m

2 stops

$654United Airlines

Fri, Feb 27 - Thu, Mar 5

10:08 am - 5:00 pm

IAD

POA

28h 52m

2 stops

7:45 am - 9:13 am

POA

IAD

27h 28m

2 stops

$681LATAM Airlines

Fri, Feb 20 - Sun, Mar 1

6:00 am - 5:00 pm

IAD

POA

33h 00m

2 stops

7:30 pm - 11:44 am

POA

IAD

18h 14m

2 stops

$683LATAM Airlines

Thu, Feb 26 - Fri, Mar 6

7:52 pm - 5:05 pm

IAD

POA

19h 13m

2 stops

6:00 pm - 11:35 am

POA

IAD

19h 35m

2 stops

$687LATAM Airlines

Sat, Feb 28 - Thu, Mar 5

5:25 pm - 6:30 am

IAD

POA

35h 05m

2 stops

7:45 am - 6:37 pm

POA

IAD

36h 52m

2 stops

$688Delta

Useful Info

Low season	February
High season	December
Cheapest flight	$290

Best time to beat the crowds with an average 6% drop in price.

Most popular time to fly with an average 75% increase in price.

Flight from Washington Dulles Airport to Porto Alegre

How does KAYAK find such low prices on flights from District of Columbia 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 District of Columbia to Porto Alegre.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to Porto Alegre?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from District of Columbia 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 District of Columbia 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 District of Columbia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia 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 District of Columbia 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

$290 Find Cheap Flights from District of Columbia to Porto Alegre

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

Everything you should know

Cheap Flights from District of Columbia to Porto Alegre

Recent round-trip flight deals from District of Columbia to Porto Alegre

Recent one-way flight deals from District of Columbia to Porto Alegre

Good to know

FAQs for booking flights from District of Columbia to Porto Alegre

How does KAYAK find such low prices on flights from District of Columbia 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 District of Columbia to Porto Alegre.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto Alegre from District of Columbia 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 District of Columbia 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 District of Columbia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia 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 District of Columbia 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 District of Columbia

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