June is by far the best month, wherein you can get cheapest flights for Porto to Washington. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Porto
07:00
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
15:10
Washington
Washington Dulles International Airport
Wed, 05 Aug 2026

Porto
08:20
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
15:30
Washington
Washington Dulles International Airport
Wed, 05 Aug 2026

Porto
11:20
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
19:01
Washington
Washington Dulles International Airport
Wed, 05 Aug 2026

Porto
11:20
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
19:01
Washington
Washington Dulles International Airport
Wed, 05 Aug 2026

Porto
11:05
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
19:25
Washington
Washington Dulles International Airport
Wed, 05 Aug 2026

Porto
08:40
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
16:45
Washington
Washington Dulles International Airport
Wed, 05 Aug 2026

Porto
16:40
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
19:50
Washington
Washington Dulles International Airport
Thu, 06 Aug 2026

Porto
10:00
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
15:15
Washington
Washington Dulles International Airport
Wed, 05 Aug 2026

Porto
16:40
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
11:35
Washington
Washington Dulles International Airport
Thu, 06 Aug 2026

Porto
16:55
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
14:20
Washington
Washington Dulles International Airport
Thu, 06 Aug 2026

Porto
05:55
Porto
Francisco Sa Carneiro Airport
Wed , 05 Aug 2026

Washington
16:05
Washington
Washington Dulles International Airport
Wed, 05 Aug 2026










Flying from Porto to Washington has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between Porto to Washington is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Francisco Sa Carneiro Airport (OPO) and Washington Dulles International Airport (IAD). You can expect a flight distance of approximately 5697 km, and most direct services cover it in around 10:48.
Let’s take a closer look at everything you need to know before booking your flight from Porto to Washington.
| Flight Details | Information |
|---|---|
| Route Distance | 5697 km |
| Average Flight Time | 10:48 hrs |
| Departure Airport | Francisco Sa Carneiro Airport (OPO) |
| Arrival Airport | Washington Dulles International Airport (IAD) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | NO |
| Common Airlines | TAP Air Portugal, Iberia, United Airlines, Air Canada |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.