Beginning of main content
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5

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.

Cheap IAD to LIS Flights

Question : How often are flights late from Washington Dulles International Airport (IAD) to Lisbon Portela Airport (LIS)?
Answer : This particular route gets passengers to Lisbon Portela Airport on time 82% of the time, which puts it in the 90th percentile worldwide. If a flight is delayed, though, expect an average of less than half an hour added to your flight time.

Question : How long do most people visit Lisbon?
Answer : Of course you're not most people, but if you were, you'd stay roughly 11 days.

Question : Over the coming months, which airline is getting their passengers to Lisbon Portela Airport (LIS) round-trip the cheapest?
Answer : Turkish Airlines is your best bet for finding that coveted low fare. They're offering fares as low as $602, while prices for other flights are as high as $8,718.

Question : Is the price you found a good deal?
Answer : Flight prices change much more than most routes from the United States for IAD to LIS. They range anywhere from $602 to $8,718. However, the sooner you book, the more you'll be able to save.

Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at Nov 24th. As of Nov 20th, it's showing the cheapest ticket sales at $602. That is 52% below the average price for this route, so you can spend that extra cash on a fun experience in Lisbon.

Question : If your plans are flexible, have you considered changing your departure day?
Answer : Monday is your cheapest day to fly in the month of December. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.

Question : What's the likelihood of you being delayed on this route?
Answer : IAD to LIS currently scores 5 out of a possible 5 stars in promptness. This score combines both the number of delayed flights and total delay minutes. With 5 stars, you should feel at ease about getting to Lisbon on time.

Washington to Lisbon Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Washington to Lisbon will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Lisbon.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with IAD to LIS flights that won’t make your bank account wince. Ready to temporarily leave behind Washington for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to LIS with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.