Flights from Dulles to Porto

Did you mean Flights from Porto to Dulles?

Dulles

United States

IAD

Washington Dulles International Airport

Porto

Portugal

OPO

Francisco de Sa Carneiro Airport

Route: No published route in current feed
Distance: 3,540 miles

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

Dulles to Porto route overview

Washington Dulles International Airport (IAD) serves Dulles; Francisco de Sa Carneiro Airport (OPO) serves Porto.

The airports are 3,540 miles apart by great-circle distance.

Roame's current schedule feed does not list a published route from IAD to OPO; use the live results above to explore connections.

Frequently asked questions

Which airports serve the Dulles to Porto route?

Washington Dulles International Airport (IAD) is the origin airport and Francisco de Sa Carneiro Airport (OPO) is the destination airport.

How far is Porto from Dulles?

IAD and OPO are approximately 3,540 miles apart by great-circle distance.

Are there direct flights from IAD to OPO?

No published route from IAD to OPO appears in Roame's current schedule feed. Check the live results for possible connections.