Porto (OPO) to Washington (DCA) flight deal from $507 USD in economy class

ACAir Canada

LHLufthansa

LXSwiss International Air Lines

Francisco Sá Carneiro Airport

Porto, Portugal

DCA

Ronald Reagan Washington National Airport

Washington, United States

$781 USD

-35%$507 USD

Verified Nov 30, 2025 at 9:04 PM

April 2026

Today

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30$543 31$507 1$532 2$637 3$563 4$667 5$699 6$594 7$543 8$532 9$507 10$532 11$612 12$667 13$543 14$507 15$507 16$532 17$532 18$540 19$532 20$532 21$532 22$507 23$530 24$532 25$532 26$637 27$532 28$507 29$507 30$507 1 2 3

Good Availability

45% of dates checked are available within 10% of the lowest price

Wednesday, April 15th, 2026

10 round-trip options

Returning

Mon, Apr 20, 2026•5 Day Trip

$507 USD

Google Flights

Returning

Tue, Apr 21, 2026•6 Day Trip

$532 USD

Google Flights

Returning

Wed, Apr 22, 2026•7 Day Trip

$507 USD

Google Flights

Returning

Thu, Apr 23, 2026•8 Day Trip

$507 USD

Google Flights

Returning

Fri, Apr 24, 2026•9 Day Trip

$507 USD

Google Flights

Returning

Sat, Apr 25, 2026•10 Day Trip

$507 USD

Google Flights

Returning

Sun, Apr 26, 2026•11 Day Trip

$507 USD

Google Flights

Returning

Mon, Apr 27, 2026•12 Day Trip

$507 USD

Google Flights

Returning

Tue, Apr 28, 2026•13 Day Trip

$507 USD

Google Flights

Returning

Wed, Apr 29, 2026•14 Day Trip

$532 USD

Google Flights