Cheap flights from Lisbon to District of Columbia from $416

In general, September is the cheapest month to fly from Lisbon to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $322. If you don’t want to visit District of Columbia in September, then you should wait until March to fly from Lisbon, when ticket prices are also cheap, with an average price of $437.

The cheapest day to depart on your flight to District of Columbia is on a Wednesday when prices can be found for as low as $799. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Lisbon because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,070.

Flying to District of Columbia from Lisbon in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $672 when looking at flights departing in the afternoon. Flights to District of Columbia are more costly in the morning, with an average ticket price of $925. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Lisbon Humberto Delgado to Washington, D.C. Dulles Intl for the best Lisbon Humberto Delgado - District of Columbia flight prices

You could potentially save up to 5% on your flight if you consider stops on a Lisbon to District of Columbia flight.

6 flights are operational daily from Lisbon to District of Columbia as of May 2026. The most popular departure time for this route is 12:00PM, with 77% of flights per day taking off in the afternoon.

The number of flights available between Lisbon and District of Columbia is 48 per week as of May 2026. The most frequent departure day is Tue, with 17% of weekly flights leaving on this day.