$367 Cheap Flights from Lisbon (LIS) to Boston (BOS)

You can find cheap one-way flights from $367 and cheap return flights $451 Lisbon (LIS-Humberto Delgado) to Boston, MA (BOS-Logan Intl.) with Expedia. One-way flights generally range between $577 and $4823, and roundtrip flights usually range from $749 to $4065. 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 Lisbon (LIS-Humberto Delgado) to Boston, MA (BOS-Logan Intl.) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

The cheapest month to fly from LIS to BOS is December when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.

Choose from 2 airlines operating direct flights from LIS to BOS:

• TAP Portugal operates around 13 direct flights from LIS to BOS every week
• Delta operates around 7 direct flights from LIS to BOS every week

KLM is one of the cheapest airlines offering nonstop flights from Lisbon (LIS) to Boston (BOS), with round-trip tickets starting from around $701. 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.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from Lisbon (LIS-Humberto Delgado) to Boston, MA (BOS-Logan 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) to Boston, MA (BOS) 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, TAP Portugal typically offers the lowest fares. TAP Portugal offers the most daily flights from LIS to BOS, 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 best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

On average, there are around 3 nonstop flights per day from Humberto Delgado (LIS) to Logan Intl. (BOS). For more options, look at flights that include layovers.

The earliest flight from Lisbon (LIS-Humberto Delgado) to Boston (BOS-Logan Intl.) usually departs at around 1:05 AM, operated by SAS. This seasonal service is active in April, giving you an early start to your travels. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

The most popular departure times for flights from Lisbon (LIS) to Boston, MA (BOS) are in the late morning, from 9am to 12pm. About 32% of passengers prefer this time window. Many major carriers, including United Airlines, American Airlines, and TAP Portugal, offer flights during this window. This timing is ideal as it allows you to start your day in Lisbon before heading off to Boston.

Direct flights from LIS to BOS usually take about 7 hours 50 minutes, traveling roughly 3,185 miles. If you opt for a connecting flight, expect to add around 4 hours 30 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

Business class seats are offered on the LIS to BOS route. Airlines that offer business class service on this route include:

• Iberia
• American Airlines
• Lufthansa
• United Airlines
• Swiss International Air Lines
• TAP Portugal
• British Airways
• Delta Air Lines
• Air Canada
• Air France

First class is available with Emirates.

A direct, return business class ticket from Lisbon (LIS) to Boston (BOS) typically costs between $5,557 - $10,267. A non-stop, one-way business class flight is usually around $3,451 - $4,181. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Lisbon (LIS-Humberto Delgado) to Boston, MA (BOS-Logan Intl.) if you opt for a connecting flight.

*Prices based on flights available on Expedia in the last year.

It's easy to earn miles on a Lisbon (LIS-Humberto Delgado) to Boston, MA (BOS-Logan 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 Boston from Humberto Delgado (LIS), you can fly into Logan Intl. (BOS) Some flights may connect through major hubs like Adolfo Suarez Madrid-Barajas (MAD), Dubai Intl. (DXB), Heathrow (LHR) before reaching Boston. 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 Boston, MA (BOS-Logan 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 Boston, MA (BOS-Logan Intl.) Boston Vacation Packages 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 Boston, MA (BOS-Logan 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.