Porto to Dulles (OPO–IAD) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
OPO–IAD has no scheduled airline service; it is flown by charter / private operators. 1-stop connecting options are also available.
Connection Landscape
On-Time Performance
Other ways to reach Dulles from Porto
| Metric | OPO→IAD | LIS→IAD |
|---|---|---|
| Distance from OPO | – | 172 mi |
| Nonstop airlines | – | 5 |
| Weekly flights | – | 45 |
| Flight time | 8h 2m | 7h 49m |
Travel Essentials
OPO: WEST · IAD: EDT
When it's 6:00 PM in Porto, it's 1:00 PM in Dulles.
Portugal is part of the US Visa Waiver Program. Portuguese passport holders enter the United States for up to 90 days without a visa, but must obtain an approved ESTA (Electronic System for Travel Authorization) before boarding. The ESTA costs USD 21, is valid for 2 years or until the passport expires, and covers multiple entries. Apply at the official CBP site (esta.cbp.dhs.gov) at least 72 hours before departure.
The 90-day stay cannot be extended, and you cannot change immigration status while in the US on the Visa Waiver Program.
Silver Line Metro runs from Washington Dulles Airport station to Metro Center in about 65 minutes (~$7). The route bypasses I-66 and I-495 congestion entirely. Washington Flyer coach also runs to Wiehle-Reston East station ($6, 15 min) for Metro connection.Taxis and ride-shares to downtown DC cost $55–80 and take 35–55 minutes depending on traffic. Car rental facilities are on-site. Dulles is 27 miles west of the Capitol; it is farther than either DCA or BWI from central DC.
Humid continental climate. Summers are hot and muggy (30–36°C) with frequent afternoon thunderstorms that cause delays June through August. Winters bring cold temperatures (−3 to 5°C) with snow and ice. The Virginia suburbs accumulate more snow than downtown DC, and ice storms are the primary disruption risk.
Dulles sits at higher elevation in Virginia's piedmont and sees more winter precipitation than DCA. Spring and fall are variable. Snowfall is possible into April. Thunderstorms begin from April through May.
OPO–IAD Quick Facts
Frequently Asked Questions
Flights from OPO to IAD
Francisco de Sá Carneiro Airport (OPO) and Washington Dulles International Airport (IAD) are connected through multiple connecting hub airports.
OPO to IAD Flight Duration and Schedule
Nonstop flight time from OPO to IAD is about 8 hours 2 minutes gate to gate. The route covers a distance of 3,540 miles (5,697 km).
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Lisbon Humberto Delgado, Newark Liberty and Charles de Gaulle. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Lisbon (LIS).