Wayfli › Washington (IAD) › To Lisbon (LIS)

Washington (IAD) to Lisbon (LIS) flights

There are direct flights from Washington Dulles International Airport to Humberto Delgado Airport (Lisbon Portela Airport), sold by one airline: TAP Air Portugal. The distance is 5,766 km, about 7h 30m in the air. There are also 12 one-stop options, via airports such as Chicago, Madrid and London.

Live fares for IAD → LISSee all routes on the map
5,766 kmdistance
~7h 30mdirect flight time (estimate)
1direct airline
12one-stop options

Direct flights from Washington to Lisbon

RouteAirlines (incl. codeshares)DistanceTime (est.)
IAD → LISTAP Air Portugal5,766 km~7h 30m

Best one-stop connections

Through the biggest hubs first. Times include about 100 minutes to change planes.

ViaAirlinesDistanceTime (est.)
ORD ChicagoUnited Airlines then TAP Air Portugal7,381 km~11h 40m
MAD MadridUnited Airlines then Ryanair and Iberia6,640 km~10h 45m
LHR LondonAmerican Airlines and Finnair then American Airlines and Finnair7,466 km~11h 45m
EWR NewarkUnited Airlines then TAP Air Portugal and United Airlines5,775 km~9h 45m
YYZ TorontoAir Canada and United Airlines then Porter Airlines Canada and Azores Airlines6,297 km~10h 20m
DUB DublinAer Lingus and United Airlines then Aer Lingus and Ryanair7,106 km~11h 20m
MAN ManchesterUnited Airlines then Ryanair and TAP Air Portugal7,425 km~11h 45m
PHL PhiladelphiaUnited Airlines then American Airlines and TAP Air Portugal5,767 km~9h 40m
CMN CasablancaRoyal Air Maroc then Royal Air Maroc and TAP Air Portugal6,767 km~10h 55m
BOS BostonjetBlue and United Airlines then Azores Airlines and TAP Air Portugal5,788 km~9h 45m
YUL MontrealAir Canada and United Airlines then Air Transat6,023 km~10h
KEF KeflavikIcelandair then Icelandair7,435 km~11h 45m

More from Washington and Lisbon

Routes come from current airline fares, updated weekly (last update 9 November 2026), plus older schedule data for airports with few recent fares. “Direct” can include a few same-plane flights with a stop. Flight times are estimates from distance. Always check with the airline before booking.