Direct (nonstop) flights from Dulles to Lisbon
2 airlines fly nonstop from Washington Dulles International (IAD) to Lisbon Airport (LIS). It's 3,591 miles (5,779 km), about 7h 10m in the air. Operated by TAP Portugal, United Airlines.
TAP Portugal
United Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Dulles to Lisbon with one stop · direct emits 549 kg CO₂ per passenger
Looking for the return flight?
LIS → IAD: Flights from Lisbon to DullesOther direct flights from Dulles
Direct flights from Lisbon (LIS)
Frequently Asked Questions
How long is the direct flight from Dulles to Lisbon?
A nonstop flight from Dulles (IAD) to Lisbon (LIS) takes approximately 7 hours and 10 minutes. The distance is 3,591 miles (5,779 km).
Which airlines fly nonstop from Dulles to Lisbon?
2 airlines: TAP Portugal, United Airlines.
Is there a nonstop flight from Dulles to Lisbon?
Yes. 2 airlines: TAP Portugal, United Airlines.
How far is Dulles from Lisbon?
The flight distance from Dulles to Lisbon is 3,591 miles (5,779 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to New York.
What is the time difference between Dulles and Lisbon?
Lisbon is 5 hours ahead of Dulles. (America/New_York vs Europe/Lisbon.)
Will I experience jet lag flying from Dulles to Lisbon?
Maybe mild — 5-hour difference. Most people adjust in a day or two.
What type of aircraft flies from Dulles to Lisbon?
At 7h 10m, this route typically uses wide-body aircraft — Boeing 777, 787, or Airbus A330/A350. Varies by airline.
Do I need a visa to travel from USA to Portugal?
Depends on your passport. Check with the Portugal embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Dulles to Lisbon?
Roughly 549 kg CO2 per passenger one-way. That's about the same as driving 2,745 km.
Is the return flight from Lisbon to Dulles also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Dulles to Lisbon?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. For long-haul, booking 2-3 months out tends to help. Use "Check Prices" above to compare.
How early should I arrive at Washington Dulles International for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.