IAD to OPO from $345 in economy – flightdeals.net

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Air Canada

Lufthansa

Swiss International Air Lines

LXSwiss International Air Lines

Austrian Airlines

OSAustrian Airlines

United Airlines

UAUnited Airlines

One Way•Economy

Washington Dulles International Airport

Washington, United States

Francisco Sá Carneiro Airport

Porto, Portugal

$458 USD

-25%$345 USD

Verified about 16 hours ago

June 2026

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1 2 3 4$943 5$942 6$872 7$872 8$872 9$872 10$872 11$943 12$942 13$886 14$873 15$849 16$872 17$872 18$943 19$880 20$886 21$872 22$872 23$872 24$872 25$943 26$942 27$886 28$872 29$872 30$872 1$872 2$532 3$462 4$462 5$462

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Tuesday, June 2nd, 2026

No flight details available for this date.