Cheap flights from Barcelona-El Prat Airport to Boston from $387

In general, February is the cheapest month to fly from Barcelona-El Prat Airport to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $406. If you aren’t able to travel during the month of February, then book flights to Boston from Barcelona-El Prat Airport during October instead. Flights to Boston in October, while not as cheap as those in February, still average around $442.

The cheapest day to depart from Barcelona-El Prat Airport to Boston is on a Thursday when prices can be found for as low as $552. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Monday is $863.

According to our data, the cheapest time of day to fly to Boston is in the evening. momondo users have found flights departing from Barcelona-El Prat Airport to Boston in the evening for as low as $568. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Boston, so prices are often more expensive at around $751 per ticket.

Fly from Barcelona-El Prat to Boston Logan Intl for the best Barcelona-El Prat - Boston Logan Intl flight prices

You are more likely to see cheaper flights to Boston from Barcelona-El Prat Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $546 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Barcelona-El Prat Airport for as low as $433 on momondo.

There are 3 cabin classes available to choose from on Barcelona-El Prat Airport to Boston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

TAP AIR PORTUGAL, LEVEL, and KLM are the most popular carriers operating from Barcelona-El Prat to Boston Logan Intl

Iberia, LEVEL and Delta are the top three most popular airlines that fly to Boston from Barcelona-El Prat Airport according to our data. Iberia is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 8 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between Barcelona and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 144 minutes.

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

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

According to our data, LEVEL have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

Frankfurt am Main (FRA) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Lisbon (LIS) offer the lowest average round-trip price of $514.

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 12h 45m.

Frankfurt am Main (FRA) has the shortest average layover time for this route: 2h 00m.

4 flights are operational daily from Barcelona-El Prat Airport to Boston as of August 2026. The most popular departure time for this route is 3:00PM, with 100% of flights per day taking off in the afternoon.

As of August 2026, 31 flights take off from Barcelona-El Prat Airport and land in Boston each week. The most common flight departure day for this route is Wed, with 29% of weekly flights taking off on this day.