What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Porto Alegre round-trip?

Flying on Copa Airlines is currently your cheapest option to Porto Alegre, with prices starting at $445. Additional round-trip tickets that might be worth considering are offered by GOL and Delta, with the lowest prices starting at $732 and $809, respectively.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Porto Alegre one-way?

To fly one-way, consider booking your trip with Copa Airlines, which is currently one of the cheapest options available, starting at $210. United Airlines flights start at $300 while deals on GOL start at $333 one-way.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Porto Alegre?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Porto Alegre flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Porto Alegre ranges from 2.8 - 5.1 inches per month. September is typically the wettest month, when rainfall can reach 5.1 in. November is typically the driest time to visit Porto Alegre when rainfall is around 2.8 in.

If weather is an important factor for your trip to Porto Alegre, use this chart to help with planning. For those seeking warmer temperatures, February is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 55.4 F).

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Porto Alegre?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Porto Alegre?

Flights from Washington, D.C. Dulles Intl Airport to Porto Alegre lean towards being more expensive in December. Prices are generally better when you fly from Washington, D.C. Dulles Intl Airport to Porto Alegre in May, with the cheapest ticket starting at $555.

What airport do you fly into for flights to Porto Alegre from Washington, D.C. Dulles Intl?

Most people fly into Porto Alegre Salgado Filho (POA) if they book a flight to Porto Alegre from Washington, D.C. Dulles Intl. On average, Salgado Filho has 0 inbound flights from Washington, D.C. Dulles Intl per day from 1 airline. Porto Alegre Salgado Filho is conveniently located just 4.0 mi from Porto Alegre’s city center.

Can I find deals for flights from Dulles Intl to Porto Alegre that include hotel bookings?

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

How can I find direct flights from Dulles Intl to Porto Alegre?

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

Can I find deals for business class flights from Dulles Intl to Porto Alegre?

Yes. Cheapflights offers flight deals from Dulles Intl 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.

$210+ Flights from Washington, D.C. Dulles Intl Airport to Porto Alegre

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Cheap flight deals from Dulles Intl to Porto Alegre

Round-trip from	$445 (Copa Airlines)
One-way from	$210 (Copa Airlines)
Popular in	December
Cheapest in	May
Average price	$676

From Washington, D.C. Dulles Intl to Porto Alegre Salgado Filho

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One-way flight from Washington, D.C. Dulles Intl to Porto Alegre Salgado Filho

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Highest demand for flights based on searches. 14% potential increase in price ($145 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($50 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from Dulles Intl to Porto Alegre

Cheapest flights from Dulles Intl to Porto Alegre
Explore the most affordable flight options available from Dulles Intl to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Tue 9/302:25 amIAD - POA

1 stop20h 55mCopa Airlines

Mon 10/131:27 amPOA - IAD

1 stop24h 04mCopa Airlines

Deal found 7/3

$445

Sun 10/55:45 amIAD - POA

3 stops34h 05mMultiple Airlines

Sat 10/119:05 pmPOA - IAD

2 stops33h 30mMultiple Airlines

Deal found 7/3

$666

Mon 10/273:20 pmIAD - POA

2 stops31h 20mGOL

Mon 11/105:10 amPOA - IAD

2 stops33h 50mGOL

Deal found 7/2

$703

Sat 10/412:36 pmIAD - POA

2 stops16h 49mDelta

Mon 10/137:20 amPOA - IAD

2 stops17h 47mDelta

Deal found 7/3

$807

Fri 10/33:25 pmIAD - POA

2 stops18h 00mAvianca

Fri 10/1011:05 amPOA - IAD

2 stops43h 30mAvianca

Deal found 7/3

$813

Wed 11/1210:30 pmIAD - POA

1 stop16h 20mUnited Airlines

Wed 12/36:40 pmPOA - IAD

1 stop13h 55mUnited Airlines

Deal found 7/1

$821

Sun 10/57:20 amIAD - POA

2 stops22h 05mLATAM Airlines

Tue 10/1410:10 amPOA - IAD

2 stops26h 40mLATAM Airlines

Deal found 7/3

$829

Best flights from Dulles Intl to Porto Alegre
Discover carefully curated flight deals from Dulles Intl to Porto Alegre that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Tue 9/302:25 amIAD - POA

1 stop20h 55mCopa Airlines

Mon 10/131:27 amPOA - IAD

1 stop24h 04mCopa Airlines

Deal found 7/3

$445

Wed 10/13:25 pmIAD - POA

2 stops31h 15mGOL

Tue 10/146:35 pmPOA - IAD

2 stops23h 12mGOL

Deal found 7/3

$732

Sun 7/206:00 amIAD - POA

2 stops23h 25mDelta

Mon 8/116:40 amPOA - IAD

2 stops18h 41mDelta

Deal found 7/2

$809

Sun 9/283:25 pmIAD - POA

2 stops18h 00mAvianca

Sun 10/128:00 pmPOA - IAD

2 stops43h 00mAvianca

Deal found 7/3

$813

Wed 10/13:31 pmIAD - POA

2 stops24h 29mLATAM Airlines

Sun 10/126:40 amPOA - IAD

2 stops18h 27mLATAM Airlines

Deal found 7/3

$835

Wed 10/110:35 pmIAD - POA

1 stop18h 35mUnited Airlines

Fri 10/102:45 pmPOA - IAD

1 stop16h 40mUnited Airlines

Deal found 7/3

$855

Sat 8/23:25 pmIAD - POA

2 stops31h 05mMultiple Airlines

Fri 8/87:00 pmPOA - IAD

2 stops35h 35mMultiple Airlines

Deal found 7/1

$1,024

Last-minute flights from Dulles Intl to Porto Alegre
Discover last-minute flight deals from Dulles Intl to Porto Alegre. Data last updated July 3, 2025 and is based on user searches.

Sun 7/61:19 pmIAD - POA

3 stops23h 06mAmerican Airlines

Mon 7/211:50 pmPOA - IAD

2 stops28h 48mAmerican Airlines

Deal found 7/3

$2,639

Fri 7/112:45 amIAD - POA

1 stop20h 30mCopa Airlines

Sat 8/21:20 amPOA - IAD

1 stop14h 43mCopa Airlines

Deal found 7/2

$677

Sat 7/1211:10 amIAD - POA

2 stops18h 15mLATAM Airlines

Sun 8/36:40 amPOA - IAD

2 stops16h 36mLATAM Airlines

Deal found 7/2

$858

Sun 7/206:00 amIAD - POA

2 stops23h 25mDelta

Mon 8/116:40 amPOA - IAD

2 stops18h 41mDelta

Deal found 7/2

$809

Sat 8/162:25 amIAD - POA

1 stop20h 50mCopa Airlines

Sat 8/231:20 amPOA - IAD

1 stop24h 08mCopa Airlines

Deal found 7/3

$581

Sun 8/174:34 pmIAD - POA

1 stop30h 41mMultiple Airlines

Sun 8/248:25 amPOA - IAD

2 stops30h 35mMultiple Airlines

Deal found 7/3

$684

Sun 8/1710:35 pmIAD - POA

1 stop14h 05mUnited Airlines

Sun 8/241:40 pmPOA - IAD

2 stops28h 50mUnited Airlines

Deal found 7/3

$1,191

One-way flights from Dulles Intl to Porto Alegre
Search for one-way flight options from Dulles Intl to Porto Alegre. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Mon 7/142:22 amIAD - POA

1 stop20h 53mCopa Airlines

Deal found 6/30

$210

Tue 9/210:35 pmIAD - POA

1 stop17h 15mUnited Airlines

Deal found 7/2

$300

Wed 9/245:45 amIAD - POA

3 stops26h 00mMultiple Airlines

Deal found 7/1

$319

Wed 9/243:25 pmIAD - POA

2 stops19h 05mGOL

Deal found 7/1

$333

Tue 9/23:25 pmIAD - POA

2 stops18h 00mAvianca

Deal found 7/2

$366

Tue 8/512:12 pmIAD - POA

2 stops30h 38mLATAM Airlines

Deal found 7/2

$389

Fri 7/186:00 amIAD - POA

2 stops23h 25mDelta

Deal found 7/1

$481

Cheapflights Fare Finder

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 9/30

2:25 am-12:20 am

1 stop20h 55m

Porto Alegre Salgado Filho

Mon 10/13

1:27 am-12:31 am

1 stop24h 04m

$445

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 8/17

4:34 pm-12:15 am

1 stop30h 41m

Porto Alegre Salgado Filho

Sun 8/24

8:25 am-2:00 pm

2 stops30h 35m

$684

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Wed 10/1

3:25 pm-11:40 pm

2 stops31h 15m

Porto Alegre Salgado Filho

Tue 10/14

6:35 pm-4:47 pm

2 stops23h 12m

$732

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 7/20

6:00 am-6:25 am

2 stops23h 25m

Porto Alegre Salgado Filho

Mon 8/11

6:40 am-12:21 am

2 stops18h 41m

$809

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Sun 9/28

3:25 pm-10:25 am

2 stops18h 00m

Porto Alegre Salgado Filho

Sun 10/12

8:00 pm-2:00 pm

2 stops43h 00m

$813

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Wed 10/1

3:31 pm-5:00 pm

2 stops24h 29m

Porto Alegre Salgado Filho

Sun 10/12

6:40 am-12:07 am

2 stops18h 27m

$835

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Wed 10/1

10:35 pm-6:10 pm

1 stop18h 35m

Porto Alegre Salgado Filho

Fri 10/10

2:45 pm-6:25 am

1 stop16h 40m

$855

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Mon 7/14

2:22 am-12:15 am

1 stop20h 53m

$210

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Tue 9/2

10:35 pm-4:50 pm

1 stop17h 15m

$300

Washington, D.C.Porto Alegre

IAD - POA

IADPOA

Washington, D.C. Dulles Intl

Wed 9/24

5:45 am-8:45 am

3 stops26h 00m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 15 results

Best time to book a flight from Dulles Intl to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Porto Alegre

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

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Porto Alegre in the afternoon. By choosing this option you can save up to 14% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Porto Alegre

Peruse reviews from past customers who have flown with Delta, LATAM Airlines, and Copa Airlines from Washington, D.C. Dulles Intl Airport to Porto Alegre to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

LATAM Airlines

7.5

Good

1,805 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Copa Airlines

7.5

Good

1,467 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

GOL

7.3

Good

1,086 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Porto Alegre from Washington, D.C. Dulles Intl?
Most people fly into Porto Alegre Salgado Filho (POA) if they book a flight to Porto Alegre from Washington, D.C. Dulles Intl. On average, Salgado Filho has 0 inbound flights from Washington, D.C. Dulles Intl per day from 1 airline. Porto Alegre Salgado Filho is conveniently located just 4.0 mi from Porto Alegre’s city center.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Porto Alegre round-trip?
Flying on Copa Airlines is currently your cheapest option to Porto Alegre, with prices starting at $445. Additional round-trip tickets that might be worth considering are offered by GOL and Delta, with the lowest prices starting at $732 and $809, respectively.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Porto Alegre one-way?
To fly one-way, consider booking your trip with Copa Airlines, which is currently one of the cheapest options available, starting at $210. United Airlines flights start at $300 while deals on GOL start at $333 one-way.
Can I find deals for flights from Dulles Intl to Porto Alegre that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Porto Alegre flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Porto Alegre?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Porto Alegre.
Can I find deals for business class flights from Dulles Intl to Porto Alegre?
Yes. Cheapflights offers flight deals from Dulles Intl 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 Dulles Intl to Porto Alegre

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Other flights to Porto Alegre

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Porto Alegre to Lisbon flights

Porto Alegre to Sao Paulo Guarulhos Intl Airport flights

Top airline flying from Dulles Intl to Porto Alegre

Airline	Cheapest	Average	Flexibility	On-time
Copa Airlines	Cheapest$403	Average$743	FlexibilityNo cancel fee	On-time70%

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$210+ Cheap flights from Dulles Intl (IAD) 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Dulles Intl to Porto AlegreExplore the most affordable flight options available from Dulles Intl to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Dulles Intl to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Dulles Intl to Porto Alegre

Have a flexible travel schedule? Discover the best time to fly to Porto Alegre from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Porto Alegre

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

Find hourly flight availability from Dulles Intl 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 July 3, 2025.

Reviews of airlines servicing Porto Alegre

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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 Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Porto Alegre round-trip?

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Porto Alegre one-way?

Can I find deals for flights from Dulles Intl to Porto Alegre that include hotel bookings?

How can I find direct flights from Dulles Intl to Porto Alegre?

Can I find deals for business class flights from Dulles Intl to Porto Alegre?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dulles Intl to Porto Alegre

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Top airline flying from Dulles Intl to Porto Alegre

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Cheapest flights from Dulles Intl to Porto Alegre
Explore the most affordable flight options available from Dulles Intl to Porto Alegre. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.