Washington (IAD) to Porto Alegre (POA) cheap flight deal from $466 USD in economy class

CMCopa Airlines

Round Trip•Economy

IAD

Washington Dulles International Airport

Washington, United States

POA

Salgado Filho International Airport

Porto Alegre, Brazil

$1,139 USD

-59%$466 USD

Verified Sep 20, 2025 at 1:32 PM

October 2025

Today

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29$488 30$468 1$468 2$540 3$540 4$488 5$520 6$572 7$520 8$520 9$540 10$711 11$488 12$468 13$468 14$468 15$468 16$520 17$676 18$540 19$520 20$520 21$468 22$520 23$564 24$541 25$540 26$520 27$468 28$520 29$540 30$564 31$676 1 2

Rare Availability

7% of dates checked are available within 10% of the lowest price

Saturday, October 4th, 2025

10 round-trip options

Returning

Thu, Oct 9, 2025•5 Day Trip

$488 USD

Google Flights

Returning

Fri, Oct 10, 2025•6 Day Trip

$540 USD

Google Flights

Returning

Sat, Oct 11, 2025•7 Day Trip

$696 USD

Google Flights

Returning

Sun, Oct 12, 2025•8 Day Trip

$2,400 USD

Google Flights

Returning

Mon, Oct 13, 2025•9 Day Trip

$696 USD

Google Flights

Returning

Tue, Oct 14, 2025•10 Day Trip

$846 USD

Google Flights

Returning

Wed, Oct 15, 2025•11 Day Trip

$584 USD

Google Flights

Returning

Thu, Oct 16, 2025•12 Day Trip

$540 USD

Google Flights

Returning

Fri, Oct 17, 2025•13 Day Trip

$696 USD

Google Flights

Returning

Sat, Oct 18, 2025•14 Day Trip

$627 USD

Google Flights