Washington (DCA) to Porto (OPO) cheap flight deal from $488 USD in economy class

ACAir Canada

LHLufthansa

LXSwiss International Air Lines

Ronald Reagan Washington National Airport

Washington, United States

OPO

Francisco Sá Carneiro Airport

Porto, Portugal

$894 USD

-45%$488 USD

Verified Sep 20, 2025 at 1:33 PM

October 2025

Today

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29$804 30$855 1$1,005 2$928 3$863 4$751 5$691 6$691 7$650 8$771 9$843 10$1,092 11$700 12$640 13$561 14$700 15$965 16$624 17$779 18$624 19$574 20$550 21$619 22$505 23$538 24$593 25$538 26$488 27$488 28$488 29$497 30$538 31$656 1 2

Rare Availability

9% of dates checked are available within 10% of the lowest price

Wednesday, October 1st, 2025

10 round-trip options

Returning

Mon, Oct 6, 2025•5 Day Trip

$1,810 USD

Google Flights

Returning

Tue, Oct 7, 2025•6 Day Trip

$1,641 USD

Google Flights

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Wed, Oct 8, 2025•7 Day Trip

$1,187 USD

Google Flights

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Thu, Oct 9, 2025•8 Day Trip

$1,136 USD

Google Flights

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Fri, Oct 10, 2025•9 Day Trip

$1,005 USD

Google Flights

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Sat, Oct 11, 2025•10 Day Trip

$1,286 USD

Google Flights

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Sun, Oct 12, 2025•11 Day Trip

$1,410 USD

Google Flights

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Mon, Oct 13, 2025•12 Day Trip

$1,140 USD

Google Flights

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Tue, Oct 14, 2025•13 Day Trip

$1,087 USD

Google Flights

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Wed, Oct 15, 2025•14 Day Trip

$1,021 USD

Google Flights