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Cheap flights from District of Columbia to Porto Alegre from $315

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Porto Alegre departing on 5/5. 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 District of Columbia to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
GOL Logo
2:46 pm - 6:55 pm
IAD
-
POA
27h 09m
2 stops
GOL Logo
11:20 am - 2:00 pm
POA
-
IAD
27h 40m
2 stops
$572GOL
Tue, Sep 15 - Mon, Sep 28
Copa Airlines Logo
2:25 am - 12:20 am
IAD
-
POA
20h 55m
1 stop
Copa Airlines Logo
1:20 am - 3:04 pm
POA
-
IAD
14h 44m
1 stop
$625Copa Airlines
Mon, Sep 14 - Sun, Sep 27
Copa Airlines Logo
2:21 am - 12:20 am
IAD
-
POA
20h 59m
1 stop
Copa Airlines Logo
1:20 am - 12:33 am
POA
-
IAD
24h 13m
1 stop
$680Copa Airlines
Wed, Jun 3 - Mon, Jun 8
LATAM Airlines Logo
1:00 pm - 6:15 am
IAD
-
POA
40h 15m
2 stops
LATAM Airlines Logo
7:25 am - 12:10 am
POA
-
IAD
17h 45m
2 stops
$684LATAM Airlines
Tue, Sep 15 - Mon, Sep 28
Copa Airlines Logo
9:35 am - 12:20 am
IAD
-
POA
13h 45m
1 stop
Copa Airlines Logo
1:20 am - 3:04 pm
POA
-
IAD
14h 44m
1 stop
$700Copa Airlines
Tue, Sep 15 - Sun, Sep 27
Copa Airlines Logo
2:21 am - 12:20 am
IAD
-
POA
20h 59m
1 stop
Copa Airlines Logo
1:35 am - 12:34 am
POA
-
IAD
23h 59m
1 stop
$742Copa Airlines
Sun, Apr 26 - Wed, Apr 29
GOL Logo
2:46 pm - 3:35 pm
IAD
-
POA
23h 49m
2 stops
GOL Logo
6:25 pm - 2:00 pm
POA
-
IAD
20h 35m
2 stops
$753GOL
Fri, Sep 11 - Fri, Sep 25
Copa Airlines Logo
2:21 am - 12:20 am
IAD
-
POA
20h 59m
1 stop
Copa Airlines Logo
1:20 am - 12:33 am
POA
-
IAD
24h 13m
1 stop
$762Copa Airlines
Wed, Jun 3 - Mon, Jun 8
Copa Airlines Logo
4:26 pm - 6:55 am
IAD
-
POA
13h 29m
1 stop
Copa Airlines Logo
1:15 am - 3:05 pm
POA
-
IAD
14h 50m
1 stop
$766Copa Airlines
Mon, Jul 13 - Mon, Aug 3
LATAM Airlines Logo
12:30 pm - 7:20 pm
IAD
-
POA
29h 50m
2 stops
LATAM Airlines Logo
5:50 pm - 2:44 pm
POA
-
IAD
21h 54m
2 stops
$791LATAM Airlines
Fri, Sep 11 - Fri, Sep 25

LATAM Airlines flights from District of Columbia to Porto Alegre

Our best LATAM Airlines deals on District of Columbia to Porto Alegre flight tickets
LATAM Airlines
Sep 15
IAD1:00 pmWashington, D.C. Dulles Intl
40h 15m
2 stops
POA6:15 amPorto Alegre Salgado Filho
Sep 28
POA7:25 amPorto Alegre Salgado Filho
17h 45m
2 stops
IAD12:10 amWashington, D.C. Dulles Intl
$684
LATAM Airlines
Aug 31
IAD6:00 amWashington, D.C. Dulles Intl
26h 15m
2 stops
POA9:15 amPorto Alegre Salgado Filho
Sep 2
POA12:10 pmPorto Alegre Salgado Filho
31h 23m
2 stops
IAD6:33 pmWashington, D.C. Dulles Intl
$791
LATAM Airlines
Jun 4
IAD1:32 pmWashington, D.C. Dulles Intl
27h 43m
2 stops
POA6:15 pmPorto Alegre Salgado Filho
Jun 9
POA11:00 amPorto Alegre Salgado Filho
23h 21m
2 stops
IAD9:21 amWashington, D.C. Dulles Intl
$826

Avianca flights from District of Columbia to Porto Alegre

Our best Avianca deals on District of Columbia to Porto Alegre flight tickets
Avianca
Jun 4
IAD6:50 amWashington, D.C. Dulles Intl
39h 55m
2 stops
POA11:45 pmPorto Alegre Salgado Filho
Jun 8
POA6:25 pmPorto Alegre Salgado Filho
35h 55m
2 stops
IAD5:20 amWashington, D.C. Dulles Intl
$963
Avianca
Aug 24
IAD3:35 pmWashington, D.C. Dulles Intl
18h 05m
2 stops
POA10:40 amPorto Alegre Salgado Filho
Sep 8
POA11:20 amPorto Alegre Salgado Filho
19h 00m
2 stops
IAD5:20 amWashington, D.C. Dulles Intl
$1,025
Avianca
Aug 31
IAD3:35 pmWashington, D.C. Dulles Intl
42h 05m
2 stops
POA10:40 amPorto Alegre Salgado Filho
Sep 2
POA2:00 pmPorto Alegre Salgado Filho
40h 20m
2 stops
IAD5:20 amWashington, D.C. Dulles Intl
$1,035

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia 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 April 18, 2026.
Use the filters below to find and compare flights from District of Columbia to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 9/15

2:46 pm-6:55 pm

2 stops27h 09m

Porto Alegre Salgado Filho

Mon 9/28

11:20 am-2:00 pm

2 stops27h 40m

$572

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 9/14

2:25 am-12:20 am

1 stop20h 55m

Porto Alegre Salgado Filho

Sun 9/27

1:20 am-3:04 pm

1 stop14h 44m

$625

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Wed 6/3

2:21 am-12:20 am

1 stop20h 59m

Porto Alegre Salgado Filho

Mon 6/8

1:20 am-12:33 am

1 stop24h 13m

$680

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 9/15

1:00 pm-6:15 am

2 stops40h 15m

Porto Alegre Salgado Filho

Mon 9/28

7:25 am-12:10 am

2 stops17h 45m

$684

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 9/15

9:35 am-12:20 am

1 stop13h 45m

Porto Alegre Salgado Filho

Sun 9/27

1:20 am-3:04 pm

1 stop14h 44m

$700

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 4/26

2:21 am-12:20 am

1 stop20h 59m

Porto Alegre Salgado Filho

Wed 4/29

1:35 am-12:34 am

1 stop23h 59m

$742

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Fri 9/11

2:46 pm-3:35 pm

2 stops23h 49m

Porto Alegre Salgado Filho

Fri 9/25

6:25 pm-2:00 pm

2 stops20h 35m

$753

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Wed 6/3

2:21 am-12:20 am

1 stop20h 59m

Porto Alegre Salgado Filho

Mon 6/8

1:20 am-12:33 am

1 stop24h 13m

$762
Quickest round-trip

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 7/13

4:26 pm-6:55 am

1 stop13h 29m

Porto Alegre Salgado Filho

Mon 8/3

1:15 am-3:05 pm

1 stop14h 50m

$766

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Fri 9/11

12:30 pm-7:20 pm

2 stops29h 50m

Porto Alegre Salgado Filho

Fri 9/25

5:50 pm-2:44 pm

2 stops21h 54m

$791

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from District of Columbia 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

Can stopping save me money on District of Columbia to Porto Alegre flights?

You could potentially save up to 14% on your flight if you consider stops on a District of Columbia to Porto Alegre flight.

Cheap District of Columbia to Porto Alegre flight deals and tips

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

Fastest flight time

18h 05m

Direct flights

None
The fastest flight from District of Columbia to Porto Alegre takes 18h 05m
There are no direct flights from District of Columbia to Porto Alegre. There are no popular flight routes from District of Columbia to Porto Alegre.
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Frequently asked questions about flying from District of Columbia to Porto Alegre

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

    Prices for flights from District of Columbia to Porto Alegre Salgado Filho Airport are updated daily.

  • How many operators does momondo search for flights from District of Columbia to Porto Alegre Salgado Filho Airport?

  • How old do you have to be to fly from District of Columbia 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 District of Columbia 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 you'll need for your trip to Porto Alegre Salgado Filho Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Porto Alegre Salgado Filho Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from District of Columbia to Porto Alegre

Compare and see reviews for airlines that fly from District of Columbia to Porto Alegre with momondo
Airline
Rating
Free Cancellation
Price
Copa AirlinesPriceFrom $428Free CancellationRating
7.5
1,576 reviews
Search Copa Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Porto Alegre?

It is quick and easy to find District of Columbia to Porto Alegre 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 Porto Alegre that suits you.

Can I find flights from District of Columbia to Porto Alegre with flexible booking policies on momondo?

All flight searches from District of Columbia to Porto Alegre on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from District of Columbia to Porto Alegre?

momondo helps you find the best flight between District of Columbia 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 District of Columbia to Porto Alegre right now. Can momondo alert me if prices change?

If you are not ready to book a flight from District of Columbia 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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