Lisbon (LIS) to Dulles (IAD) flights
2 airlines fly nonstop from Lisbon (LIS) to Dulles (IAD): TAP Portugal and United Airlines. The two airports are 3,583 miles (5,766 km) apart. TAP Portugal and United Airlines are in Star Alliance. There are also 34 ways to fly it with one stop, through Philadelphia, New York and New York and more.
Airlines flying nonstop from LIS to IAD
- TAP PortugalStar Alliance · bookable with 12 programsWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book LIS to IAD with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks TAP Portugal, United Airlines
- Air New Zealand AirpointsBooks TAP Portugal, United Airlines
- ANA Mileage ClubBooks TAP Portugal, United Airlines
- Avianca LifeMilesBooks TAP Portugal, United Airlines
- Emirates SkywardsBooks TAP Portugal, United Airlines
- EVA Air Infinity MileageLandsBooks TAP Portugal, United Airlines
- Lufthansa Miles & MoreBooks TAP Portugal, United Airlines
- Singapore Airlines KrisFlyerBooks TAP Portugal, United Airlines
- TAP Miles&GoBooks TAP Portugal, United Airlines
- Thai Royal Orchid PlusBooks TAP Portugal, United Airlines
- Turkish Airlines Miles&SmilesBooks TAP Portugal, United Airlines
- United MileagePlusBooks TAP Portugal, United Airlines
- JetBlue TrueBlueBooks United Airlines
LIS to IAD with one stop
34 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Philadelphia (PHL)American Airlines, then United Airlines
- Via New York (JFK)Delta Air Lines the whole way
- Via New York (EWR)United Airlines the whole way
- Via Boston (BOS)TAP Portugal and Delta Air Lines, then United Airlines
- Via Halifax (YHZ)WestJet, then United Airlines
- Via Montreal (YUL)Air Canada the whole way
- Via Toronto (YYZ)Air Canada the whole way
- Via Madrid (MAD)Iberia the whole way
+2
- Via Casablanca (CMN)Royal Air Maroc the whole way
- Via Dublin (DUB)Aer Lingus the whole way
- Via Toulouse (TLS)Ryanair and TAP Portugal, then United Airlines
- Via Chicago (ORD)TAP Portugal, then United Airlines
- Via Reykjavik (KEF)Icelandair the whole way
- Via London (LHR)British Airways the whole way
- Via Barcelona (BCN)TAP Portugal, Vueling and 2 more, then United Airlines
+1
LIS to IAD: common questions
Which airlines fly nonstop from LIS to IAD?
TAP Portugal (Star Alliance) and United Airlines (Star Alliance) fly nonstop from Lisbon (LIS) to Dulles (IAD).
How far is Lisbon from Dulles by plane?
Lisbon (LIS) and Dulles (IAD) are 3,583 miles (5,766 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book LIS to IAD award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, Lufthansa Miles & More, Singapore Airlines KrisFlyer and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does LIS to IAD cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for LIS to IAD with taxes and fees.
Where can I connect between Lisbon and Dulles?
The most direct connections are through Philadelphia (PHL), New York (JFK), New York (EWR), Boston (BOS) and Halifax (YHZ). On 16 of them the same airline flies both flights, for example Delta Air Lines through New York.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.