$381 Cheap TAP Portugal flights Lisbon (LIS) to Washington (IAD)

You can discover cheap return TAP Portugal flights from $595 from LIS to IAD by sorting your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $381 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

TAP Portugal flights to Washington tend to be more affordable in the off-peak months of January and February. Whether you’re searching for a one-way or round-trip ticket, you could find a better deal then.

Scoring the best TAP Portugal deals from LIS to IAD often comes down to booking at the right time. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. Better yet, you can pocket 17% on average by buying your tickets on a Sunday compared to a Friday, which is often the most expensive day to book.* It’s smart to kick off your flight search about one month before you want to travel.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Easily travel from Humberto Delgado Airport (LIS) to Washington Dulles Intl. Airport (IAD) on one of TAP Portugal’s 6 direct weekly flights. Use Expedia’s “Nonstop” and “Airline” filters to find the TAP Portugal flight that’ll take you to IAD at your preferred time.

From takeoff till landing, a direct TAP Portugal flight from Humberto Delgado Airport (LIS) to Washington Dulles Intl. Airport (IAD) typically takes 8h 45m.

Leaving LIS at 10:45AM UTC+0, the first TAP Portugal flight to IAD lands at 2:30PM UTC-5. Traveling early means you’re less likely to encounter cancellations or delays.* Don’t like early starts? The last TAP Portugal flight from LIS to IAD departs at 5:15PM UTC+0 and touches down at 9:00PM UTC-5.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Washington Dulles Intl. Airport (IAD) is the primary Washington hub for TAP Portugal flights from Humberto Delgado Airport (LIS).

TAP Portugal allows you to bring 2 checked-in bags weighing up to 50 lb with dimensions not exceeding 62 inches on standard economy flights from LIS to IAD. You can also bring 1 cabin bag with you in the cabin. This carry-on luggage must not exceed 45 inches and weigh no more than 17 lb. Baggage allowances can differ based on the cabin class and fare type, so double-check your booking or TAP Portugal’s website to avoid any additional fees at the airport.

Book a TAP Portugal flight from Humberto Delgado Airport (LIS) to Washington Dulles Intl. Airport (IAD), and you’ll usually be on an Airbus A321neo. Keep in mind though, that the aircraft type can change depending on operational reasons.

Changes are typically free within 24 hours of booking, but your airline may charge a fee after that. For further information about altering your flights, head to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to adjust your plans without extra charges, apply the “Changes included” and “No cancel fee” filters when organizing your next adventure.