Cheapest return flights from Washington to Porto Alegre in December from $1407

AirHint found the following cheapest return flights from Washington (IAD) to Porto Alegre (POA) in December 2025 (see full year).

Return flights

23 Dec - 15 Jan GOL Linhas Aéreas

Also check the deals for one-way flights from Washington to Porto Alegre in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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