Boston to Lisbon flights

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Lowest observed

€277

Average observed

€369

Cheapest month

January 2027

Last checked

28 Sep 2026

Observed fares. Prices may change.

Your next trip, last seen at €277

Lowest observed

9 Jan 2027

One way

Cheapest observed day · Last checked: 7 Sep 2026

When to fly

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Find the dates that work for you

The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.

Prices are for observed departure and return date pairs. No data does not mean no flights.

Short answer

The lowest fare our own searches returned is €277, seen on 7 Sep 2026. The average across the fares we caught is €369. January 2027 is the cheapest month in our observations, at €277. These are prices our searches returned on the dates shown, not quotes; run a live search for today's fare.

Short answer

About this route

Explore the fares we observed from Boston to Lisbon. Prices move often, so pick your dates to see the latest options.

BostonLisbon

Route distance: 5,131 km
Reported fastest flight: 6h 20m
Alternative airports: PSM

Route-level information; individual journeys vary.

A clearer picture of your fare

Observed, not guaranteed

Every price is a fare we actually saw, and it may change at any time.

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The price is final on the provider's site, where your booking is completed.

How our prices work

Frequently asked

How much is a flight from Boston to Lisbon?

The lowest fare we have observed is €277, found on 7 Sep 2026. Prices move, so read it as a floor rather than a quote.

When is the cheapest month to fly from Boston to Lisbon?

In our observations January 2027 is the cheapest month so far, at €277.

How long does the flight from Boston to Lisbon take?

The average journey time across the 31 fares we observed is 10h 14m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.

How many of the observed Boston to Lisbon fares were non-stop?

19 of the 33 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.

How observed prices work, what "No data" means and what a fare includes: Read the flight price guide