April is by far the best month, wherein you can get cheapest flights for Washington to Lisbon. 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.

Washington
21:00
Washington
Washington Dulles International Airport
Sun , 03 May 2026

Lisbon
17:40
Lisbon
Humberto Delgado Airport
Mon, 04 May 2026

Washington
21:00
Washington
Washington Dulles International Airport
Wed , 15 Apr 2026

Lisbon
11:50
Lisbon
Humberto Delgado Airport
Thu, 16 Apr 2026

Washington
22:30
Washington
Washington Dulles International Airport
Sun , 03 May 2026

Lisbon
10:30
Lisbon
Humberto Delgado Airport
Mon, 04 May 2026

Washington
13:00
Washington
Washington Dulles International Airport
Mon , 04 May 2026

Lisbon
09:20
Lisbon
Humberto Delgado Airport
Tue, 05 May 2026

Washington
22:05
Washington
Washington Dulles International Airport
Sun , 03 May 2026

Lisbon
09:20
Lisbon
Humberto Delgado Airport
Tue, 05 May 2026

Washington
13:19
Washington
Washington Dulles International Airport
Mon , 04 May 2026

Lisbon
08:00
Lisbon
Humberto Delgado Airport
Tue, 05 May 2026

Washington
13:19
Washington
Washington Dulles International Airport
Sun , 03 May 2026

Lisbon
08:00
Lisbon
Humberto Delgado Airport
Mon, 04 May 2026

Washington
20:20
Washington
Washington Dulles International Airport
Mon , 13 Apr 2026

Lisbon
15:35
Lisbon
Humberto Delgado Airport
Tue, 14 Apr 2026

Washington
20:20
Washington
Washington Dulles International Airport
Sun , 19 Apr 2026

Lisbon
15:35
Lisbon
Humberto Delgado Airport
Mon, 20 Apr 2026

Washington
21:45
Washington
Washington Dulles International Airport
Mon , 04 May 2026

Lisbon
23:30
Lisbon
Humberto Delgado Airport
Tue, 05 May 2026










Flying from Washington to Lisbon 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 Washington to Lisbon is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Washington Dulles International Airport (IAD) and Humberto Delgado Airport (LIS). You can expect a flight distance of approximately 5765 km, and most direct services cover it in around 20:29.
Let’s take a closer look at everything you need to know before booking your flight from Washington to Lisbon.
| Flight Details | Information |
|---|---|
| Route Distance | 5765 km |
| Average Flight Time | 20:29 hrs |
| Departure Airport | Washington Dulles International Airport (IAD) |
| Arrival Airport | Humberto Delgado Airport (LIS) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | YES |
| Common Airlines | Royal Air Maroc, United Airlines, Air Canada, Delta Airlines |
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.