Latest deals
FAQs
Price Alerts

Cheap flights from Washington to Porto Alegre from $835

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Porto Alegre departing on 3/6. 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 Washington to Porto Alegre

Cheap round-trip flights

Enter your travel dates to find the best prices.
LATAM Airlines Logo
6:15 am - 11:35 am
SEA
-
POA
24h 20m2 stops
LATAM Airlines Logo
6:00 pm - 2:39 pm
POA
-
SEA
24h 39m2 stops
$835LATAM Airlines
Fri, Mar 6 - Mon, Mar 9
Multiple Airlines Logo
7:05 am - 11:35 am
SEA
-
POA
23h 30m2 stops
Multiple Airlines Logo
10:05 am - 8:00 pm
POA
-
SEA
38h 55m2 stops
$1,100Multiple Airlines
Fri, Feb 13 - Fri, Feb 20
LATAM Airlines Logo
11:05 pm - 6:30 am
SEA
-
POA
50h 25m2 stops
LATAM Airlines Logo
4:40 am - 10:15 pm
POA
-
SEA
22h 35m2 stops
$1,141LATAM Airlines
Fri, Feb 13 - Thu, Feb 19
Air Canada Logo
8:10 am - 4:30 pm
SEA
-
POA
28h 20m2 stops
Air Canada Logo
2:05 pm - 10:16 pm
POA
-
SEA
36h 11m2 stops
$1,165Air Canada
Tue, Mar 17 - Thu, Mar 19
Air Canada Logo
8:10 am - 4:25 pm
SEA
-
POA
28h 15m2 stops
Air Canada Logo
3:30 pm - 10:16 pm
POA
-
SEA
34h 46m2 stops
$1,166Air Canada
Tue, Mar 17 - Thu, Mar 19
United Airlines Logo
12:42 pm - 11:45 am
SEA
-
POA
66h 03m3 stops
United Airlines Logo
4:55 pm - 7:03 pm
POA
-
SEA
31h 08m2 stops
$1,240United Airlines
Sat, Feb 14 - Sat, Feb 21
United Airlines Logo
7:00 am - 1:40 pm
SEA
-
POA
25h 40m2 stops
United Airlines Logo
3:25 pm - 7:03 pm
POA
-
SEA
32h 38m2 stops
$1,317United Airlines
Fri, Feb 13 - Fri, Feb 20
United Airlines Logo
12:25 pm - 2:40 pm
SEA
-
POA
45h 15m3 stops
United Airlines Logo
3:25 pm - 7:03 pm
POA
-
SEA
32h 38m2 stops
$1,343United Airlines
Fri, Feb 13 - Fri, Feb 20
United Airlines Logo
2:10 pm - 3:20 pm
PDX
-
POA
21h 10m2 stops
United Airlines Logo
5:10 pm - 10:29 pm
POA
-
PDX
33h 19m2 stops
$1,382United Airlines
Thu, Apr 2 - Mon, Apr 6
United Airlines Logo
7:00 am - 3:20 pm
PDX
-
POA
28h 20m2 stops
United Airlines Logo
3:25 pm - 10:29 pm
POA
-
PDX
35h 04m2 stops
$1,383United Airlines
Thu, Apr 2 - Mon, Apr 6

LATAM Airlines flights from State of Washington to Porto Alegre

Our best LATAM Airlines deals on State of Washington to Porto Alegre flight tickets
LATAM Airlines
Mar 6
SEA6:15 amSeattle/Tacoma Intl
24h 20m
2 stops
POA11:35 amPorto Alegre Salgado Filho
Mar 9
POA6:00 pmPorto Alegre Salgado Filho
24h 39m
2 stops
SEA2:39 pmSeattle/Tacoma Intl
$835
Find similar
LATAM Airlines
Feb 13
SEA11:05 pmSeattle/Tacoma Intl
50h 25m
2 stops
POA6:30 amPorto Alegre Salgado Filho
Feb 19
POA4:40 amPorto Alegre Salgado Filho
22h 35m
2 stops
SEA10:15 pmSeattle/Tacoma Intl
$1,141
Find similar

Air Canada flights from State of Washington to Porto Alegre

Our best Air Canada deals on State of Washington to Porto Alegre flight tickets
Air Canada
Mar 17
SEA8:10 amSeattle/Tacoma Intl
32h 00m
2 stops
POA8:10 pmPorto Alegre Salgado Filho
Mar 19
POA2:05 pmPorto Alegre Salgado Filho
36h 11m
2 stops
SEA10:16 pmSeattle/Tacoma Intl
$1,165
Find similar
Air Canada
Mar 17
SEA8:10 amSeattle/Tacoma Intl
28h 15m
2 stops
POA4:25 pmPorto Alegre Salgado Filho
Mar 19
POA3:30 pmPorto Alegre Salgado Filho
34h 46m
2 stops
SEA10:16 pmSeattle/Tacoma Intl
$1,166
Find similar
Air Canada
Jan 12
SEA8:10 amSeattle/Tacoma Intl
25h 30m
2 stops
POA2:40 pmPorto Alegre Salgado Filho
Jan 19
POA3:25 pmPorto Alegre Salgado Filho
35h 51m
2 stops
SEA10:16 pmSeattle/Tacoma Intl
$5,074
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 January 1, 2026.
Use the filters below to find and compare flights from Washington to Porto Alegre that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Fri 3/6

6:15 am-11:35 am

2 stops24h 20m

Porto Alegre Salgado Filho

Mon 3/9

6:00 pm-2:39 pm

2 stops24h 39m

$835

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Fri 2/13

7:05 am-11:35 am

2 stops23h 30m

Porto Alegre Salgado Filho

Fri 2/20

10:05 am-8:00 pm

2 stops38h 55m

$1,100

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Fri 2/13

11:05 pm-6:30 am

2 stops50h 25m

Porto Alegre Salgado Filho

Thu 2/19

4:40 am-10:15 pm

2 stops22h 35m

$1,141

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Tue 3/17

8:10 am-4:30 pm

2 stops28h 20m

Porto Alegre Salgado Filho

Thu 3/19

2:05 pm-10:16 pm

2 stops36h 11m

$1,165

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Tue 3/17

8:10 am-4:25 pm

2 stops28h 15m

Porto Alegre Salgado Filho

Thu 3/19

3:30 pm-10:16 pm

2 stops34h 46m

$1,166

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Sat 2/14

12:42 pm-11:45 am

3 stops66h 03m

Porto Alegre Salgado Filho

Sat 2/21

4:55 pm-7:03 pm

2 stops31h 08m

$1,240

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Fri 2/13

7:00 am-1:40 pm

2 stops25h 40m

Porto Alegre Salgado Filho

Fri 2/20

3:25 pm-7:03 pm

2 stops32h 38m

$1,317

SeattlePorto Alegre

SEA - POA

SEAPOA

Seattle/Tacoma Intl

Fri 2/13

12:25 pm-2:40 pm

3 stops45h 15m

Porto Alegre Salgado Filho

Fri 2/20

3:25 pm-7:03 pm

2 stops32h 38m

$1,343

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Thu 4/2

2:10 pm-3:20 pm

2 stops21h 10m

Porto Alegre Salgado Filho

Mon 4/6

5:10 pm-10:29 pm

2 stops33h 19m

$1,382

PortlandPorto Alegre

PDX - POA

PDXPOA

Portland

Thu 4/2

7:00 am-3:20 pm

2 stops28h 20m

Porto Alegre Salgado Filho

Mon 4/6

3:25 pm-10:29 pm

2 stops35h 04m

$1,383

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap State of Washington to Porto Alegre flight deals and tips

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

Fastest flight time

23h 30m

Direct flights

None
The fastest flight from State of Washington to Porto Alegre takes 23h 30m
There are no direct flights from State of Washington to Porto Alegre. There are no popular flight routes from State of Washington to Porto Alegre.
Search flight deals

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

    Prices for flights from Washington to Porto Alegre Salgado Filho Airport are updated daily.

  • How old do you have to be to fly from Washington to Porto Alegre Salgado Filho 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 Washington 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.

  • How do I get Price Alerts for flights from State of Washington to Porto Alegre?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to State of Washington from Porto Alegre. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from State of Washington to Porto Alegre with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Porto Alegre?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Porto Alegre. momondo saves you time and could save you money on your trip.

Can I find flights from Washington to Porto Alegre with flexible booking policies on momondo?

Yes. All flights to Porto Alegre from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington to Porto Alegre?

momondo provides multiple filters to help you find the best flight to Porto Alegre from Washington. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington to Porto Alegre right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington to Porto Alegre 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 Porto Alegre 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
Sat 1/31
Sat 2/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Brazil