£329 Cheap Flights from Lisbon (LIS) to Washington (IAD)

You can find cheap one-way flights from £329 and cheap return flights £259 LIS to IAD with Expedia. One-way flights typically cost between £678 and £2860, and return flights often range between £567 and £4439. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when LIS to IAD ticket fares go up or down.

If you're looking for the cheapest time to fly from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.), September is typically your best bet. You can expect average return fares around £481 during this month. September often sees lower prices as the peak summer travel season winds down, and demand decreases. Other budget-friendly months to consider for this route include March and April.

There are 2 airlines offering direct flights from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.). These are:
* TAP Portugal operates 14 direct flights from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) every week.
* United operates 7 direct flights from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) every week.

Turkish Airlines offers one of the cheapest connecting return flights on this route, with tickets starting from around £655. TAP Portugal is one of the cheapest airlines offering nonstop return flights from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.), with tickets starting from around £849 for flights that can be booked for departure within the next year. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

To find a cheap flight from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) will differ from traveler to traveler. If you like to fly early, TAP Portugal offers early morning flights. If price is the most important factor, JetBlue Airways typically offers the lowest fares. TAP Portugal offers the most daily flights from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The cheapest months to fly from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) are typically September and April, with average return flights around £481. However, the most popular months for this route are January and March, meaning you'll find plenty of flight options during those times. If you're looking for the best balance of good fares and a wide selection of flights, you might consider travelling in September or April for better value, or January and March if having more flight choices is your priority.

You'll find approximately 3 nonstop flights per day from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.). For even more choices, look at flights that include layovers, as there are around 87 connecting flights per day. Some common connection points include Heathrow (LHR), Adolfo Suarez Madrid-Barajas (MAD), and Frankfurt Intl. (FRA).

The earliest flight from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) typically departs around 5:00 AM. This service is offered by airlines such as KLM and Air France. This is a seasonal service, active in March, May, and June. An early departure like this can be really convenient, allowing you to maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll typically find the most flights from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) on a Wednesday, with around 58 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include TAP Portugal, British Airways, and Iberia. Flight schedules are fairly consistent throughout the week, so you'll have plenty of choices regardless of your travel day.

The most popular departure times for flights from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) are in the morning, from 6am to 9am. Many major carriers, including Lufthansa, British Airways and Iberia, offer flights during this window. Many travellers prefer this time as it allows for an early start to their journey.

A direct flight from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) typically takes around 8 hours 30 minutes. This route covers a distance of approximately 5,766 kilometers. If you opt for a flight with one stop, your journey will usually be longer, taking about 13 hours 30 minutes. Flights with two or more stops generally take even longer, around 18 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.

Yes, you can fly business class or first class between Lisbon (LIS) and Washington, DC (IAD).

Airlines that offer business class service on this route include:

• British Airways
• Lufthansa
• Air France
• Iberia
• Emirates
• Swiss International Air Lines
• TAP Portugal
• Brussels Airlines
• SAS
• Turkish Airlines
• Air Canada
• KLM
• Royal Air Maroc
• Delta
• United
• (multiple carriers)
• Air Europa
• Portugalia

First class cabins are available on Emirates.

It's easy to earn miles on a Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to Washington from Humberto Delgado (LIS), you can fly directly into Washington Dulles Intl. (IAD). Some flights may connect through major hubs like Adolfo Suarez Madrid-Barajas (MAD), Heathrow (LHR), or Philadelphia Intl. (PHL) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Lisbon (LIS-Humberto Delgado) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.