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Cheap flights from Porto Alegre to Washington, D.C. from $328

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto Alegre to Washington, D.C. departing on 3/8. 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 Porto Alegre to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:10 pm - 6:40 am
POA
-
IAD
14h 30m
1 stop
United Airlines Logo
11:30 pm - 2:25 pm
IAD
-
POA
13h 55m
1 stop
$627United Airlines
Wed, Mar 18 - Sun, Mar 22
United Airlines Logo
5:10 pm - 6:40 am
POA
-
IAD
14h 30m
1 stop
United Airlines Logo
11:30 pm - 2:25 pm
IAD
-
POA
13h 55m
1 stop
$629United Airlines
Wed, Mar 18 - Sun, Mar 22
United Airlines Logo
3:25 pm - 11:49 am
POA
-
IAD
21h 24m
2 stops
United Airlines Logo
11:30 pm - 2:25 pm
IAD
-
POA
13h 55m
1 stop
$633United Airlines
Wed, Mar 18 - Sun, Mar 22
Copa Airlines Logo
1:25 am - 3:02 pm
POA
-
IAD
14h 37m
1 stop
Copa Airlines Logo
9:32 am - 12:20 am
IAD
-
POA
13h 48m
1 stop
$640Copa Airlines
Sat, Mar 28 - Sun, Apr 5
Copa Airlines Logo
1:20 am - 12:33 am
POA
-
IAD
24h 13m
1 stop
Copa Airlines Logo
2:21 am - 12:20 am
IAD
-
POA
20h 59m
1 stop
$677Copa Airlines
Wed, May 27 - Sun, Jun 7
Copa Airlines Logo
1:15 am - 12:33 am
POA
-
IAD
24h 18m
1 stop
Copa Airlines Logo
2:25 am - 12:15 am
IAD
-
POA
20h 50m
1 stop
$697Copa Airlines
Mon, Aug 3 - Mon, Aug 24
Multiple Airlines Logo
8:05 pm - 5:20 am
POA
-
IAD
34h 15m
2 stops
Multiple Airlines Logo
3:35 pm - 6:55 pm
IAD
-
POA
26h 20m
2 stops
$722Multiple Airlines
Tue, Apr 28 - Thu, May 7
United Airlines Logo
3:25 pm - 6:50 pm
POA
-
IAD
28h 25m
2 stops
United Airlines Logo
10:30 pm - 2:20 pm
IAD
-
POA
14h 50m
1 stop
$735United Airlines
Tue, May 26 - Sun, Jun 7
GOL Logo
6:25 pm - 2:15 pm
POA
-
IAD
20h 50m
2 stops
GOL Logo
6:50 am - 10:40 am
IAD
-
POA
26h 50m
2 stops
$753GOL
Thu, May 28 - Mon, Jun 8
Multiple Airlines Logo
1:35 pm - 6:25 am
POA
-
IAD
17h 50m
1 stop
Multiple Airlines Logo
10:30 pm - 2:20 pm
IAD
-
POA
14h 50m
1 stop
$772Multiple Airlines
Wed, Aug 5 - Tue, Aug 25

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

Our best Copa Airlines deals on Porto Alegre to Washington, D.C. Dulles Intl Airport flight tickets
Copa Airlines
Mar 28
POA1:25 amPorto Alegre Salgado Filho
14h 37m
1 stop
IAD3:02 pmWashington, D.C. Dulles Intl
Apr 5
IAD9:32 amWashington, D.C. Dulles Intl
13h 48m
1 stop
POA12:20 amPorto Alegre Salgado Filho
$640
Copa Airlines
May 27
POA1:20 amPorto Alegre Salgado Filho
24h 13m
1 stop
IAD12:33 amWashington, D.C. Dulles Intl
Jun 7
IAD2:21 amWashington, D.C. Dulles Intl
20h 59m
1 stop
POA12:20 amPorto Alegre Salgado Filho
$677
Copa Airlines
Aug 3
POA1:15 amPorto Alegre Salgado Filho
24h 18m
1 stop
IAD12:33 amWashington, D.C. Dulles Intl
Aug 24
IAD2:25 amWashington, D.C. Dulles Intl
20h 50m
1 stop
POA12:15 amPorto Alegre Salgado Filho
$697

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

Our best GOL deals on Porto Alegre to Washington, D.C. Dulles Intl Airport flight tickets
GOL
May 28
POA6:25 pmPorto Alegre Salgado Filho
20h 50m
2 stops
IAD2:15 pmWashington, D.C. Dulles Intl
Jun 8
IAD6:50 amWashington, D.C. Dulles Intl
26h 50m
2 stops
POA10:40 amPorto Alegre Salgado Filho
$753
GOL
Mar 18
POA11:40 amPorto Alegre Salgado Filho
30h 10m
2 stops
IAD4:50 pmWashington, D.C. Dulles Intl
Apr 9
IAD6:50 amWashington, D.C. Dulles Intl
25h 40m
2 stops
POA9:30 amPorto Alegre Salgado Filho
$777
GOL
Apr 29
POA11:35 amPorto Alegre Salgado Filho
27h 40m
2 stops
IAD2:15 pmWashington, D.C. Dulles Intl
May 7
IAD6:50 amWashington, D.C. Dulles Intl
35h 05m
2 stops
POA6:55 pmPorto Alegre Salgado Filho
$778

momondo Fare Finder

 
Customize your flight search to find flights from Porto Alegre to Washington, D.C. Dulles Intl Airport 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 3, 2026.
Use the filters below to find and compare flights from Porto Alegre to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 3/18

5:10 pm-6:40 am

1 stop14h 30m

Washington, D.C. Dulles Intl

Sun 3/22

11:30 pm-2:25 pm

1 stop13h 55m

$627

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 3/18

5:10 pm-6:40 am

1 stop14h 30m

Washington, D.C. Dulles Intl

Sun 3/22

11:30 pm-2:25 pm

1 stop13h 55m

$629

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 3/18

3:25 pm-11:49 am

2 stops21h 24m

Washington, D.C. Dulles Intl

Sun 3/22

11:30 pm-2:25 pm

1 stop13h 55m

$633

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Sat 3/28

1:25 am-3:02 pm

1 stop14h 37m

Washington, D.C. Dulles Intl

Sun 4/5

9:32 am-12:20 am

1 stop13h 48m

$640

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 5/27

1:20 am-12:33 am

1 stop24h 13m

Washington, D.C. Dulles Intl

Sun 6/7

2:21 am-12:20 am

1 stop20h 59m

$677

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Mon 8/3

1:15 am-12:33 am

1 stop24h 18m

Washington, D.C. Dulles Intl

Mon 8/24

2:25 am-12:15 am

1 stop20h 50m

$697

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Tue 4/28

8:05 pm-5:20 am

2 stops34h 15m

Washington, D.C. Dulles Intl

Thu 5/7

3:35 pm-6:55 pm

2 stops26h 20m

$722

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Tue 5/26

3:25 pm-6:50 pm

2 stops28h 25m

Washington, D.C. Dulles Intl

Sun 6/7

10:30 pm-2:20 pm

1 stop14h 50m

$735

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 5/28

6:25 pm-2:15 pm

2 stops20h 50m

Washington, D.C. Dulles Intl

Mon 6/8

6:50 am-10:40 am

2 stops26h 50m

$753

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Wed 8/5

1:35 pm-6:25 am

1 stop17h 50m

Washington, D.C. Dulles Intl

Tue 8/25

10:30 pm-2:20 pm

1 stop14h 50m

$772

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Washington, D.C. from

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

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 typical price of a round-trip flight between Porto Alegre and Washington, D.C. Dulles Intl Airport?

Can stopping save me money on Porto Alegre to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 59% on your flight if you consider stops on a Porto Alegre to Washington, D.C. Dulles Intl Airport flight.

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

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

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

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

Fastest flight time

18h 30m

Direct flights

None
The fastest flight from Porto Alegre to Washington, D.C. Dulles Intl Airport takes 18h 30m
There are no direct flights from Porto Alegre to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from Porto Alegre to Washington, D.C. Dulles Intl Airport.
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  • How far is Porto Alegre Salgado Filho to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from Porto Alegre Salgado Filho to Washington, D.C. Dulles Intl is 5052.8 mi. Flights usually cover this in 18h 30m, depending on flying conditions and air traffic around both airports.

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Porto Alegre Salgado Filho Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Colonial Beach
Laurel
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Silver Spring
Gaithersburg
Fredericksburg
Rockville
Tysons
Manassas
Springfield
Bethesda
Fairfax
Sterling

Why use momondo?

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

It is quick and easy to find Porto Alegre to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from Porto Alegre to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Porto Alegre with this policy.

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

Once all potential Porto Alegre to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Porto Alegre to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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