Cheap flights from Spain to Boston from $308

In general, October is the cheapest month to fly from Spain to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $151. If you aren’t able to travel during the month of October, then book flights to Boston from Spain during February instead. Flights to Boston in February, while not as cheap as those in October, still average around $154.

The cheapest day to depart from Spain to Boston is on a Thursday when prices can be found for as low as $533. 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 $957.

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from Spain to Boston in the afternoon for as low as $588. 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 $771 per ticket.

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

You are more likely to see cheaper flights to Boston from Spain when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $539 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Spain for as low as $418 on momondo.

There are 4 cabin classes available to choose from on Spain to Boston flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

LEVEL, Iberia, and British Airways are the most popular carriers operating from Spain to Boston Logan Intl

Iberia, LEVEL and LEVEL are the top three most popular airlines that fly to Boston from Spain according to our data. Iberia is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 11 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 11% of flights between Spain and Boston 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 in the morning 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. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Iberia have had the least number of delays on this route over the last 12 months; with about 4% of their flights experiencing any sort of delay.

The number of flights available between Spain and Boston is 19 per day as of May 2026. The most frequent departure time is 5:00PM, with 88% of daily flights leaving in the afternoon.

The number of flights available between Spain and Boston is 136 per week as of May 2026. The most frequent departure day is Wed, with 17% of weekly flights leaving on this day.