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Cheap flights from Washington, D.C. Dulles Intl Airport to Porto Alegre from $240

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Porto Alegre departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:50 am - 8:45 am
IAD
-
POA
24h 55m
2 stops
Multiple Airlines Logo
8:45 pm - 5:20 am
POA
-
IAD
33h 35m
2 stops
$558Multiple Airlines
Tue, Mar 31 - Mon, Apr 6
Multiple Airlines Logo
6:50 am - 8:45 am
IAD
-
POA
24h 55m
2 stops
Multiple Airlines Logo
7:40 pm - 5:20 am
POA
-
IAD
34h 40m
3 stops
$585Multiple Airlines
Tue, Mar 31 - Mon, Apr 6
United Airlines Logo
11:30 pm - 2:25 pm
IAD
-
POA
13h 55m
1 stop
United Airlines Logo
2:05 pm - 6:40 am
POA
-
IAD
17h 35m
1 stop
$606United Airlines
Sun, Mar 15 - Thu, Mar 19
United Airlines Logo
11:30 pm - 2:25 pm
IAD
-
POA
13h 55m
1 stop
United Airlines Logo
2:05 pm - 11:59 pm
POA
-
IAD
34h 54m
2 stops
$623United Airlines
Sun, Mar 15 - Thu, Mar 19
United Airlines Logo
6:00 am - 4:25 pm
IAD
-
POA
33h 25m
2 stops
United Airlines Logo
2:05 pm - 11:59 pm
POA
-
IAD
34h 54m
2 stops
$636United Airlines
Sun, Mar 15 - Thu, Mar 19
Multiple Airlines Logo
6:50 am - 8:05 am
IAD
-
POA
24h 15m
2 stops
Multiple Airlines Logo
9:55 pm - 5:20 am
POA
-
IAD
32h 25m
2 stops
$689Multiple Airlines
Sat, Apr 4 - Sat, Apr 18
LATAM Airlines Logo
7:29 pm - 5:05 pm
IAD
-
POA
20h 36m
2 stops
LATAM Airlines Logo
2:25 pm - 12:39 pm
POA
-
IAD
23h 14m
2 stops
$693LATAM Airlines
Wed, Mar 25 - Wed, Apr 1
Copa Airlines Logo
2:22 am - 12:15 am
IAD
-
POA
20h 53m
1 stop
Copa Airlines Logo
1:15 am - 12:33 am
POA
-
IAD
24h 18m
1 stop
$748Copa Airlines
Mon, Jul 6 - Mon, Aug 3
Multiple Airlines Logo
6:50 am - 8:05 am
IAD
-
POA
24h 15m
2 stops
Multiple Airlines Logo
7:35 pm - 5:20 am
POA
-
IAD
34h 45m
3 stops
$758Multiple Airlines
Sat, Apr 4 - Sat, Apr 18
United Airlines Logo
11:30 pm - 2:25 pm
IAD
-
POA
13h 55m
1 stop
United Airlines Logo
3:30 pm - 11:49 am
POA
-
IAD
21h 19m
2 stops
$805United Airlines
Tue, Mar 17 - Thu, Mar 19

LATAM Airlines flights from Washington, D.C. Dulles Intl Airport to Porto Alegre

Our best LATAM Airlines deals on Washington, D.C. Dulles Intl Airport to Porto Alegre flight tickets
LATAM Airlines
Mar 25
IAD7:29 pmWashington, D.C. Dulles Intl
20h 36m
2 stops
POA5:05 pmPorto Alegre Salgado Filho
Apr 1
POA2:25 pmPorto Alegre Salgado Filho
23h 14m
2 stops
IAD12:39 pmWashington, D.C. Dulles Intl
$693
LATAM Airlines
Feb 20
IAD3:42 pmWashington, D.C. Dulles Intl
20h 23m
2 stops
POA2:05 pmPorto Alegre Salgado Filho
Mar 1
POA8:10 pmPorto Alegre Salgado Filho
17h 25m
2 stops
IAD11:35 amWashington, D.C. Dulles Intl
$1,172
LATAM Airlines
Feb 20
IAD3:42 pmWashington, D.C. Dulles Intl
20h 23m
2 stops
POA2:05 pmPorto Alegre Salgado Filho
Mar 1
POA8:10 pmPorto Alegre Salgado Filho
20h 35m
2 stops
IAD2:45 pmWashington, D.C. Dulles Intl
$1,185

American Airlines flights from Washington, D.C. Dulles Intl Airport to Porto Alegre

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Porto Alegre flight tickets
American Airlines
Feb 20
IAD5:00 amWashington, D.C. Dulles Intl
27h 35m
3 stops
POA10:35 amPorto Alegre Salgado Filho
Mar 1
POA5:55 pmPorto Alegre Salgado Filho
24h 36m
2 stops
IAD4:31 pmWashington, D.C. Dulles Intl
$1,235
American Airlines
Feb 20
IAD5:00 amWashington, D.C. Dulles Intl
27h 35m
3 stops
POA10:35 amPorto Alegre Salgado Filho
Mar 1
POA5:55 pmPorto Alegre Salgado Filho
24h 36m
2 stops
IAD4:31 pmWashington, D.C. Dulles Intl
$1,244
American Airlines
Jul 7
IAD9:16 amWashington, D.C. Dulles Intl
25h 59m
3 stops
POA12:15 pmPorto Alegre Salgado Filho
Aug 4
POA6:25 pmPorto Alegre Salgado Filho
29h 19m
2 stops
IAD10:44 pmWashington, D.C. Dulles Intl
$1,262

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 February 9, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 3/31

6:50 am-8:45 am

2 stops24h 55m

Porto Alegre Salgado Filho

Mon 4/6

8:45 pm-5:20 am

2 stops33h 35m

$558

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 3/31

6:50 am-8:45 am

2 stops24h 55m

Porto Alegre Salgado Filho

Mon 4/6

7:40 pm-5:20 am

3 stops34h 40m

$585

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 3/15

11:30 pm-2:25 pm

1 stop13h 55m

Porto Alegre Salgado Filho

Thu 3/19

2:05 pm-6:40 am

1 stop17h 35m

$606

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 3/15

11:30 pm-2:25 pm

1 stop13h 55m

Porto Alegre Salgado Filho

Thu 3/19

2:05 pm-11:59 pm

2 stops34h 54m

$623

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 3/15

6:00 am-4:25 pm

2 stops33h 25m

Porto Alegre Salgado Filho

Thu 3/19

2:05 pm-11:59 pm

2 stops34h 54m

$636

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sat 4/4

6:50 am-8:05 am

2 stops24h 15m

Porto Alegre Salgado Filho

Sat 4/18

9:55 pm-5:20 am

2 stops32h 25m

$689

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Wed 3/25

7:29 pm-5:05 pm

2 stops20h 36m

Porto Alegre Salgado Filho

Wed 4/1

2:25 pm-12:39 pm

2 stops23h 14m

$693

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 7/6

2:22 am-12:15 am

1 stop20h 53m

Porto Alegre Salgado Filho

Mon 8/3

1:15 am-12:33 am

1 stop24h 18m

$748

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sat 4/4

6:50 am-8:05 am

2 stops24h 15m

Porto Alegre Salgado Filho

Sat 4/18

7:35 pm-5:20 am

3 stops34h 45m

$758

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 3/17

11:30 pm-2:25 pm

1 stop13h 55m

Porto Alegre Salgado Filho

Thu 3/19

3:30 pm-11:49 am

2 stops21h 19m

$805

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Porto Alegre from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl to Porto Alegre Salgado Filho?

Copa Airlines and LATAM Airlines are the most popular carriers operating from Washington, D.C. Dulles Intl to Porto Alegre Salgado Filho

When to book flights from Washington, D.C. Dulles Intl Airport to Porto Alegre

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

Cheap Washington, D.C. Dulles Intl Airport to Porto Alegre (IAD to POA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Porto Alegre

Fastest flight time

13h 55m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to Porto Alegre takes 13h 55m
There are no direct flights from Washington, D.C. Dulles Intl Airport to Porto Alegre. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to Porto Alegre.
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  • How far is Washington, D.C. Dulles Intl to Porto Alegre Salgado Filho by plane?

    Porto Alegre Salgado Filho is 5052.8 mi away from Washington, D.C. Dulles Intl. A reasonable flight in good conditions will take 13h 55m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Porto Alegre Salgado Filho Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Porto Alegre Salgado Filho Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Porto Alegre Salgado Filho Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Porto Alegre Salgado Filho Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl 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.

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Porto Alegre?

Best airlines flying from Washington, D.C. Dulles Intl Airport to Porto Alegre

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Porto Alegre with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $428Free CancellationRating
7.5
1,557 reviews
Search Copa Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Porto Alegre?

Finding the right flight to Porto Alegre from Washington, D.C. 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 Washington, D.C. to Porto Alegre with flexible booking policies on momondo?

momondo does allow users to show only those flights to Porto Alegre from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Porto Alegre?

momondo helps you find the best flight between Washington, D.C. and Porto Alegre by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Washington, D.C. to Porto Alegre now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Porto Alegre and let you know when they change.

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