Cheap flights from Boston to Lisbon from R6 681

In general, February is the cheapest month to fly from Boston to Lisbon. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around R10 696. If you’re not able to fly to Lisbon in February, then March is your next best option. Flight prices from Boston to Lisbon during March average around R11 265.

Fly from Boston Logan Intl to Lisbon Humberto Delgado for the best Boston Logan Intl - Lisbon Humberto Delgado flight prices

You are more likely to see cheaper flights to Lisbon from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Lisbon for around R13 877 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Lisbon from Boston for as low as R12 988 on momondo.

There is only 1 cabin class available to choose from on Boston to Lisbon flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 15% of flights between Boston and Lisbon have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Tuesday has historically seen more delays on average compared to the rest of the week.

According to our data, TAP AIR PORTUGAL have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

The number of flights available between Boston and Lisbon is 8 per day as of September 2026. The most frequent departure time is 23:00, with 100% of daily flights leaving in the evening.

56 flights are operational weekly from Boston to Lisbon as of September 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.