Skip to main content
Beginning of main content

IAD (Washington) to LIS (Lisbon) Flights $698.03

Search over 321,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia's Price Guarantee.
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheap IAD to LIS Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Washington to Lisbon (IAD to LIS)

Question : What are the chances this flight will be delayed?
Answer : Flights from IAD to LIS are on time 88% of the time, ranking in the top 25% of the world. If a flight is late, though, expect an average of about half an hour added to your flight time.

Question : In terms of overall promptness, how does IAD to LIS rank compared to the rest of the world?
Answer : Using the combined on-time percentage and average delay breakdown, Dulles to Lisbon currently has a 5 out of a possible 5 star rating. A 5-star rating means you should feel confident in getting to Lisbon on time.

Question : Who's offering the cheapest round-trip flight to Lisbon Portela Airport (LIS) over the coming months?
Answer : American Airlines is offering the best deal at $605. Better snatch it up quickly because prices range all the way up to $8,740 over the next three months.

Question : What is the cheapest day to fly in the next four weeks?
Answer : Jun 28th has seen bookings (as of Jun 26th) as cheap as $901. That comes in 34% below the average price for this route. Saving now means you'll have more money to spend on your trip.

Question : Would you be willing to change your travel days if it saved you money?
Answer : The cheapest day to fly in July is Wednesday. Flexibility is paramount when booking travel plans in order to keep travel costs down.

Question : Do prices fluctuate more for this route than others?
Answer : Flight prices change a lot more than the majority of routes from the United States for IAD to LIS. They range anywhere from $605 to $8,740. The further out you book a route, the more likely you are to save.

Question : Do travelers from Dulles typically stay in Lisbon for very long?
Answer : Passengers from IAD to LIS stay 13 days on average.