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Cheap flights from District of Columbia to Porto Alegre from $339

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 9/2. 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
1 adult, Economy, 0 bags

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Travel Warning: Due to flooding, the airport may be currently closed. Check local travel advisories before booking.

Find the cheapest flights from District of Columbia to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
Copa Airlines Logo
2:25 am - 12:20 am
IAD
-
POA
20h 55m
1 stop
Copa Airlines Logo
1:20 am - 12:32 am
POA
-
IAD
24h 12m
1 stop
$810Copa Airlines
Thu, Sep 10 - Thu, Sep 24
Multiple Airlines Logo
10:30 pm - 8:05 pm
IAD
-
POA
20h 35m
1 stop
Multiple Airlines Logo
5:45 am - 6:25 am
POA
-
IAD
25h 40m
1 stop
$818Multiple Airlines
Thu, Sep 3 - Mon, Sep 21
Delta Logo
6:00 am - 6:20 am
IAD
-
POA
23h 20m
2 stops
Delta Logo
7:05 pm - 6:33 pm
POA
-
IAD
24h 28m
2 stops
$822Delta
Fri, Aug 7 - Mon, Aug 17
LATAM Airlines Logo
6:00 am - 6:20 am
IAD
-
POA
23h 20m
2 stops
LATAM Airlines Logo
10:05 am - 11:33 am
POA
-
IAD
26h 28m
2 stops
$825LATAM Airlines
Fri, Aug 7 - Thu, Aug 20
Multiple Airlines Logo
2:25 am - 12:15 am
IAD
-
POA
20h 50m
1 stop
Multiple Airlines Logo
1:15 am - 4:07 pm
POA
-
IAD
39h 52m
2 stops
$827Multiple Airlines
Tue, Aug 11 - Tue, Aug 25
LATAM Airlines Logo
12:25 pm - 2:15 pm
IAD
-
POA
24h 50m
2 stops
LATAM Airlines Logo
7:05 pm - 5:46 pm
POA
-
IAD
23h 41m
2 stops
$829LATAM Airlines
Tue, Sep 15 - Mon, Sep 28
Copa Airlines Logo
2:25 am - 12:15 am
IAD
-
POA
20h 50m
1 stop
Copa Airlines Logo
1:15 am - 4:21 am
POA
-
IAD
28h 06m
1 stop
$830Copa Airlines
Thu, Aug 13 - Tue, Aug 25
Delta Logo
12:29 pm - 12:40 am
IAD
-
POA
35h 11m
2 stops
Delta Logo
6:40 am - 11:49 am
POA
-
IAD
30h 09m
2 stops
$832Delta
Thu, Aug 13 - Wed, Aug 19
Multiple Airlines Logo
6:26 am - 12:15 am
IAD
-
POA
16h 49m
1 stop
Multiple Airlines Logo
1:15 am - 4:07 pm
POA
-
IAD
39h 52m
2 stops
$834Multiple Airlines
Fri, Aug 14 - Tue, Aug 25
LATAM Airlines Logo
7:59 pm - 6:20 am
IAD
-
POA
33h 21m
2 stops
LATAM Airlines Logo
9:55 pm - 11:33 am
POA
-
IAD
38h 38m
2 stops
$839LATAM Airlines
Sat, Aug 22 - Mon, Aug 31

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Copa Airlines flights from District of Columbia to Porto Alegre

Our best Copa Airlines deals on District of Columbia to Porto Alegre flight tickets
Copa Airlines
Sep 10
IAD2:25 amWashington, D.C. Dulles Intl
20h 55m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Sep 24
POA1:20 amPorto Alegre Salgado Filho
24h 12m
1 stop
IAD12:32 amWashington, D.C. Dulles Intl
$810
Copa Airlines
Aug 13
IAD2:25 amWashington, D.C. Dulles Intl
20h 50m
1 stop
POA12:15 amPorto Alegre Salgado Filho
Aug 24
POA1:15 amPorto Alegre Salgado Filho
24h 18m
1 stop
IAD12:33 amWashington, D.C. Dulles Intl
$830
Copa Airlines
Sep 6
IAD9:35 amWashington, D.C. Dulles Intl
13h 45m
1 stop
POA12:20 amPorto Alegre Salgado Filho
Sep 12
POA1:20 amPorto Alegre Salgado Filho
28h 00m
1 stop
IAD4:20 amWashington, D.C. Dulles Intl
$850

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
Aug 7
IAD6:00 amWashington, D.C. Dulles Intl
23h 20m
2 stops
POA6:20 amPorto Alegre Salgado Filho
Aug 20
POA10:05 amPorto Alegre Salgado Filho
26h 28m
2 stops
IAD11:33 amWashington, D.C. Dulles Intl
$825
LATAM Airlines
Sep 15
IAD12:25 pmWashington, D.C. Dulles Intl
24h 50m
2 stops
POA2:15 pmPorto Alegre Salgado Filho
Sep 28
POA7:05 pmPorto Alegre Salgado Filho
23h 41m
2 stops
IAD5:46 pmWashington, D.C. Dulles Intl
$829
LATAM Airlines
Aug 22
IAD7:59 pmWashington, D.C. Dulles Intl
33h 21m
2 stops
POA6:20 amPorto Alegre Salgado Filho
Aug 31
POA9:55 pmPorto Alegre Salgado Filho
38h 38m
2 stops
IAD11:33 amWashington, D.C. Dulles Intl
$839

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 July 24, 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
Quickest round-trip

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Thu 9/10

2:25 am-12:20 am

1 stop20h 55m

Porto Alegre Salgado Filho

Thu 9/24

1:20 am-12:32 am

1 stop24h 12m

$810

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Thu 9/3

10:30 pm-8:05 pm

1 stop20h 35m

Porto Alegre Salgado Filho

Mon 9/21

5:45 am-6:25 am

1 stop25h 40m

$818

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Fri 8/7

6:00 am-6:20 am

2 stops23h 20m

Porto Alegre Salgado Filho

Mon 8/17

7:05 pm-6:33 pm

2 stops24h 28m

$822

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Fri 8/7

6:00 am-6:20 am

2 stops23h 20m

Porto Alegre Salgado Filho

Thu 8/20

10:05 am-11:33 am

2 stops26h 28m

$825

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 8/11

2:25 am-12:15 am

1 stop20h 50m

Porto Alegre Salgado Filho

Tue 8/25

1:15 am-4:07 pm

2 stops39h 52m

$827

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 9/15

12:25 pm-2:15 pm

2 stops24h 50m

Porto Alegre Salgado Filho

Mon 9/28

7:05 pm-5:46 pm

2 stops23h 41m

$829

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Thu 8/13

2:25 am-12:15 am

1 stop20h 50m

Porto Alegre Salgado Filho

Tue 8/25

1:15 am-4:21 am

1 stop28h 06m

$830

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Thu 8/13

12:29 pm-12:40 am

2 stops35h 11m

Porto Alegre Salgado Filho

Wed 8/19

6:40 am-11:49 am

2 stops30h 09m

$832

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Fri 8/14

6:26 am-12:15 am

1 stop16h 49m

Porto Alegre Salgado Filho

Tue 8/25

1:15 am-4:07 pm

2 stops39h 52m

$834

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sat 8/22

7:59 pm-6:20 am

2 stops33h 21m

Porto Alegre Salgado Filho

Mon 8/31

9:55 pm-11:33 am

2 stops38h 38m

$839

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

What is the cheapest month to fly to Porto Alegre?

The cheapest month to fly to Porto Alegre from District of Columbia is in January. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you’re not able to fly to Porto Alegre in January, then September is your next best option. Flight prices from District of Columbia to Porto Alegre during September average around $485.

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

You could potentially save up to 10% 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

16h 49m

Direct flights

None
The fastest flight from District of Columbia to Porto Alegre takes 16h 49m
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 $485Free CancellationRating
7.6
1,560 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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