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Porto Alegre

$329+ Cheap flights from District of Columbia to Porto Alegre (POA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — POA
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from District of Columbia to Porto Alegre

Keep the following information in mind while searching for District of Columbia to Porto Alegre flight deals. Data was last updated November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$508
(Copa Airlines)

One-way from

$329
(LATAM Airlines)

Popular in

December

Cheapest in

May

Average price

$674
Provider with most accurate pricing for Washington, D.C. (WAS)-Porto Alegre Salgado Filho flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Porto Alegre Salgado Filho flights.
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From District of Columbia to Porto Alegre Salgado Filho
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One-way flight from District of Columbia to Porto Alegre Salgado Filho
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Highest demand for flights based on searches. 17% potential increase in price ($156 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($58 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from District of Columbia to Porto Alegre

Cheapest flights from District of Columbia to Porto Alegre
Explore the most affordable flight options available from District of Columbia to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Mytrip deal was found by Cheapflights users on 11/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:45 amIAD - POA
2 stops24h 50mMultiple Airlines
Sat 12/275:10 amPOA - IAD
3 stops34h 05mMultiple Airlines
Deal found 11/23$1,299
This Travelocity deal was found by Cheapflights users on 11/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/155:45 amIAD - POA
2 stops34h 05mMultiple Airlines
Thu 1/17:45 amPOA - IAD
2 stops17h 07mMultiple Airlines
Deal found 11/23$1,464

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from District of Columbia to Porto Alegre that are best for you.

Fly from

District of Columbia

Fly to

Porto Alegre

Route

Depart

Return

Price

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 3/2

8:29 am-12:25 am

1 stop13h 56m

Porto Alegre Salgado Filho

Sat 3/14

1:30 am-12:32 am

1 stop24h 02m

$508

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 3/2

7:15 am-1:15 pm

2 stops28h 00m

Porto Alegre Salgado Filho

Sun 3/15

6:00 pm-12:39 pm

2 stops19h 39m

$685

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Fri 2/20

7:51 pm-5:05 pm

2 stops19h 14m

Porto Alegre Salgado Filho

Sun 3/1

2:05 pm-6:36 pm

2 stops30h 31m

$686

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 3/15

1:19 pm-12:25 am

2 stops34h 06m

Porto Alegre Salgado Filho

Thu 3/19

5:55 pm-12:39 pm

2 stops19h 44m

$687

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 3/16

12:52 pm-2:05 pm

2 stops24h 13m

Porto Alegre Salgado Filho

Thu 3/19

5:55 pm-7:19 pm

2 stops26h 24m

$687

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Thu 2/19

1:18 am-12:25 am

1 stop21h 07m

Porto Alegre Salgado Filho

Sat 2/28

1:30 am-2:00 pm

1 stop14h 30m

$757

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 3/15

2:18 am-12:25 am

1 stop21h 07m

Porto Alegre Salgado Filho

Wed 3/18

1:30 am-12:32 am

1 stop24h 02m

$805

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sat 1/10

12:23 pm-1:10 am

2 stops34h 47m

$329

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sat 1/10

8:25 am-12:30 am

1 stop14h 05m

$463

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 1/6

6:15 pm-5:20 pm

2 stops21h 05m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Showing 1-10 of 12 results
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Best time to book a flight from District of Columbia to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from District of Columbia to Porto Alegre

What is the cheapest time of day to fly from DC to POA?

Find hourly flight availability from District of Columbia to Porto Alegre. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 31% on flights from District of Columbia to Porto Alegre by exploring options for tickets in the afternoon.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Porto Alegre. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto Alegre from District of Columbia?

    Porto Alegre Salgado Filho (POA), located 4.0 mi from the city center, is the airport you fly into when you book flights from District of Columbia to Porto Alegre.

  • How long is the flight from District of Columbia to Porto Alegre?

    For as low as $508, Copa Airlines can have you in Porto Alegre from District of Columbia in 13h 56m. There are 5051 mi between District of Columbia and Porto Alegre. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from District of Columbia to Porto Alegre one-way?

    $329 is the cheapest one-way deal found within the past few days, from LATAM Airlines. You may also be able to find cheap deals on Copa Airlines and Air Canada, with prices starting from $463 and $608, respectively.

  • Can I find deals for flights from District of Columbia to Porto Alegre that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Porto Alegre flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Porto Alegre?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Porto Alegre.

  • Can I find deals for business class flights from District of Columbia to Porto Alegre?

    Yes. Cheapflights offers flight deals from District of Columbia to Porto Alegre by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for District of Columbia to Porto Alegre

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from District of Columbia to Porto Alegre

Discover the top 2 airlines that operate flights from District of Columbia to Porto Alegre. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$428Average$485FlexibilityNo cancel feeOn-time70%
LATAM AirlinesCheapest$798Average$809FlexibilityNo cancel feeOn-time81%

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