The cheapest times to fly from BOS to LIS are

  • January 1st to March 25th
  • September 3rd to December 9th (except the week of September 17th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from BOS to LIS is early December. Prices can be as high as $1051 for Friday flights during early August, or as low as $385 for Tuesday flights around early December.


When to Fly to Lisbon

Flying from Boston, MA (BOS) to Lisbon (LIS) will usually cost between $441 to $798 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early December with an average ticket price of $461. Due to high demand the most expensive time to fly is early August, with an average price of $907. Planning your trip to low-cost times can easily save you $446 on economy flights and even more on first-class flights. Generally, any price below $550 can be considered a good price for a round-trip BOS to LIS flight.

See below for a graph of average weekly prices for the BOS to LIS route. All prices are for round-trip tickets in USD.

BOS to LIS Flight Prices

Compared to other flights, the BOS to LIS flight is cheaper than the average and costs less than the average flight leaving from Boston. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Fridays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $64 (11%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $543. Return trip prices are from the LIS to BOS flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from BOS to LIS can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 6 hour 43 minutes may be realistic.


Flight Hacking BOS to LIS

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from BOS to LIS — but Champion Traveler does!

Hack #1: Madrid (BOS > MAD > LIS)

  • Price for both tickets: $449
  • Average savings: $102 (18.45%)

See BOS to MAD flights

Hack #2: London (BOS > LGW > LIS)

  • Price for both tickets: $467
  • Average savings: $84 (15.18%)

See BOS to LGW flights

Hack #3: London (BOS > LHR > LIS)

  • Price for both tickets: $477
  • Average savings: $73 (13.27%)

See BOS to LHR flights


Flight Questions Answered

Still have questions about flying from BOS to LIS? We’ve got answers.

Which airlines fly this route?

You can find 33 major airlines flying this route most often: Aer Lingus, Air Canada, Air Europa, Air France, Alitalia, American, Austrian, Azores Airlines, British Airways, Brussels Airlines, Delta, easyJet, El Al, Emirates, Finnair, Iberia, Icelandair, KLM, Lufthansa, Norwegian, Norwegian Air International, Norwegian Air UK, Porter Airlines, Royal Air Maroc, SAS, Singapore Airlines, SWISS, TACV, Tap Air Portugal, Turkish Airlines, United, Virgin Atlantic, Wizz Air, and potentially more during busy seasons.

How far away is it from Lisboa Airport to Logan International Airport?

The distance between the two airports is roughly 3183 miles or 5123 kilometers.

How long does it take to fly from BOS to LIS?

The real-world flight time for a nonstop BOS to LIS flight is about 6 hour 43 minutes.

How many flights go between Boston, MA and Lisbon?

It depends on the day of the week and the date, but a typical day might have around 95 available flights from BOS to LIS.


Airport Location Info


Departing Airport

Origination code BOS
Origination airport name Logan International Airport
City Boston, MA
Country the United States
Latitude 42.4
Longitude -71

Return Airport

Destination code LIS
Destination airport name Lisboa Airport
City Lisbon
Country Portugal
Latitude 38.8
Longitude -9.1


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.