Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Porto Alegre to Washington, D.C. 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 Porto Alegre to Washington, D.C. departing on 11/10. 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.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
2:00 pm - 6:35 amPOA-IAD
18h 35m1 stop
United Airlines Logo
10:30 pm - 4:10 pmIAD-POA
15h 40m1 stop
$669United Airlines
Find Deal
Fri, Dec 19 - Fri, Jan 2
United Airlines Logo
6:15 pm - 10:24 amPOA-IAD
18h 09m2 stops
United Airlines Logo
10:30 pm - 4:10 pmIAD-POA
15h 40m1 stop
$734United Airlines
Find Deal
Fri, Dec 19 - Fri, Jan 2
Multiple Airlines Logo
5:20 pm - 2:15 pmPOA-IAD
45h 55m2 stops
Multiple Airlines Logo
3:35 pm - 4:30 pmIAD-POA
23h 55m2 stops
$765Multiple Airlines
Find Deal
Sun, Mar 8 - Thu, Mar 12
Multiple Airlines Logo
5:20 pm - 2:15 pmPOA-IAD
45h 55m2 stops
Multiple Airlines Logo
3:35 pm - 4:30 pmIAD-POA
23h 55m2 stops
$766Multiple Airlines
Find Deal
Sun, Mar 8 - Thu, Mar 12
Copa Airlines Logo
1:30 am - 2:00 pmPOA-IAD
14h 30m1 stop
Copa Airlines Logo
2:18 am - 12:25 amIAD-POA
21h 07m1 stop
$813Copa Airlines
Find Deal
Sat, Mar 7 - Wed, Mar 11
Multiple Airlines Logo
11:40 am - 4:25 amPOA-IAD
18h 45m2 stops
Multiple Airlines Logo
2:35 pm - 11:00 amIAD-POA
18h 25m2 stops
$822Multiple Airlines
Find Deal
Tue, Nov 18 - Tue, Nov 25
American Airlines Logo
6:05 pm - 4:31 pmPOA-IAD
24h 26m2 stops
American Airlines Logo
5:26 pm - 5:45 pmIAD-POA
46h 19m2 stops
$939American Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 9
American Airlines Logo
6:05 pm - 9:17 pmPOA-IAD
29h 12m2 stops
American Airlines Logo
5:26 pm - 5:45 pmIAD-POA
46h 19m2 stops
$944American Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 9
Delta Logo
7:45 am - 11:44 amPOA-IAD
29h 59m2 stops
Delta Logo
12:23 pm - 12:25 amIAD-POA
34h 02m2 stops
$999Delta
Find Deal
Thu, Feb 5 - Mon, Feb 9
Copa Airlines Logo
1:35 am - 2:02 pmPOA-IAD
14h 27m1 stop
Copa Airlines Logo
1:12 am - 12:30 amIAD-POA
21h 18m1 stop
$1,101Copa Airlines
Find Deal
Mon, Dec 22 - Wed, Dec 31

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

Our best United Airlines deals on Porto Alegre to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Dec 19
POA2:00 pmPorto Alegre Salgado Filho
18h 35m
1 stop
IAD6:35 amWashington, D.C. Dulles Intl
Jan 2
IAD10:30 pmWashington, D.C. Dulles Intl
15h 40m
1 stop
POA4:10 pmPorto Alegre Salgado Filho
$669
Find similar
United Airlines
Dec 19
POA6:15 pmPorto Alegre Salgado Filho
18h 09m
2 stops
IAD10:24 amWashington, D.C. Dulles Intl
Jan 2
IAD10:30 pmWashington, D.C. Dulles Intl
15h 40m
1 stop
POA4:10 pmPorto Alegre Salgado Filho
$734
Find similar
United Airlines
Feb 5
POA3:30 pmPorto Alegre Salgado Filho
32h 48m
2 stops
IAD10:18 pmWashington, D.C. Dulles Intl
Feb 9
IAD10:30 pmWashington, D.C. Dulles Intl
14h 05m
1 stop
POA2:35 pmPorto Alegre Salgado Filho
$1,140
Find similar

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 7
POA1:30 amPorto Alegre Salgado Filho
14h 30m
1 stop
IAD2:00 pmWashington, D.C. Dulles Intl
Mar 11
IAD2:18 amWashington, D.C. Dulles Intl
21h 07m
1 stop
POA12:25 amPorto Alegre Salgado Filho
$813
Find similar
Copa Airlines
Dec 22
POA1:35 amPorto Alegre Salgado Filho
14h 27m
1 stop
IAD2:02 pmWashington, D.C. Dulles Intl
Dec 31
IAD1:12 amWashington, D.C. Dulles Intl
21h 18m
1 stop
POA12:30 amPorto Alegre Salgado Filho
$1,101
Find similar
Copa Airlines
Feb 4
POA1:30 amPorto Alegre Salgado Filho
14h 30m
1 stop
IAD2:00 pmWashington, D.C. Dulles Intl
Feb 8
IAD1:18 amWashington, D.C. Dulles Intl
21h 07m
1 stop
POA12:25 amPorto Alegre Salgado Filho
$1,253
Find similar

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 November 2, 2025.
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

Fri 12/19

2:00 pm-6:35 am

1 stop18h 35m

Washington, D.C. Dulles Intl

Fri 1/2

10:30 pm-4:10 pm

1 stop15h 40m

$669

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Fri 12/19

6:15 pm-10:24 am

2 stops18h 09m

Washington, D.C. Dulles Intl

Fri 1/2

10:30 pm-4:10 pm

1 stop15h 40m

$734

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Sun 3/8

5:20 pm-2:15 pm

2 stops45h 55m

Washington, D.C. Dulles Intl

Thu 3/12

3:35 pm-4:30 pm

2 stops23h 55m

$765

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Sun 3/8

5:20 pm-2:15 pm

2 stops45h 55m

Washington, D.C. Dulles Intl

Thu 3/12

3:35 pm-4:30 pm

2 stops23h 55m

$766

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Sat 3/7

1:30 am-2:00 pm

1 stop14h 30m

Washington, D.C. Dulles Intl

Wed 3/11

2:18 am-12:25 am

1 stop21h 07m

$813

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Tue 11/18

11:40 am-4:25 am

2 stops18h 45m

Washington, D.C. Dulles Intl

Tue 11/25

2:35 pm-11:00 am

2 stops18h 25m

$822

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 2/5

6:05 pm-4:31 pm

2 stops24h 26m

Washington, D.C. Dulles Intl

Mon 2/9

5:26 pm-5:45 pm

2 stops46h 19m

$939

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 2/5

6:05 pm-9:17 pm

2 stops29h 12m

Washington, D.C. Dulles Intl

Mon 2/9

5:26 pm-5:45 pm

2 stops46h 19m

$944

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Thu 2/5

7:45 am-11:44 am

2 stops29h 59m

Washington, D.C. Dulles Intl

Mon 2/9

12:23 pm-12:25 am

2 stops34h 02m

$999

Porto AlegreWashington, D.C.

POA - IAD

POAIAD

Porto Alegre Salgado Filho

Mon 12/22

1:35 am-2:02 pm

1 stop14h 27m

Washington, D.C. Dulles Intl

Wed 12/31

1:12 am-12:30 am

1 stop21h 18m

$1,101

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, June is the cheapest month to fly from Porto Alegre to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $587. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of June, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $605.

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

You could potentially save up to 53% 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

Direct flights

None
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.
Search flight deals

  • 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 14h 27m, 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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Gaithersburg
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.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 12/2
Tue 12/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.