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LIS to IAD: distance & flight time
Lisbon (Humberto Delgado Airport (Lisbon Portela Airport)) → Washington (Washington Dulles International Airport)
3,583 mi
5,766 km · 3,113 nm
7h 29m
estimated nonstop flight time
-5h
time difference · heading northwest
See live LIS→IAD fares Phone-only fares on this route — call free
Flight time details
3,583 miles nonstop takes roughly 7h 29m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 5-hour time set-back when reading arrival times on your ticket.
The two airports
- LIS — Humberto Delgado Airport (Lisbon Portela Airport) · Lisbon, Portugal
- IAD — Washington Dulles International Airport · Washington, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near LIS
- AVR · Alverca Air Base9 mi away
- CAT · Cascais Airport12 mi away
- QLR · Monte Real Air Base74 mi away
- BYJ · Beja Airport / Airbase81 mi away
Frequently asked questions
How far is LIS from IAD?
The flight distance from Lisbon (LIS) to Washington (IAD) is 3,583 miles (5,766 km, 3,113 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LIS to IAD?
A nonstop flight takes about 7h 29m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Lisbon and Washington?
Washington is 5 hours behind Lisbon.
What is the cheapest way to fly from LIS to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LIS–IAD that never appear on search engines, with no booking fees.