Cheap flights from Boston to Spain from $251

If you don’t want to visit Spain in September, then you should wait until October to fly from Boston, when ticket prices are also cheap, with an average price of $480.

The cheapest day to depart from Boston to Spain is on a Monday when prices can be found for as low as $521. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Spain for around $644.

Flying to Spain from Boston in the evening is the least expensive time of day to depart. momondo users have found prices as low as $587 when looking at flights departing in the evening. In contrast, the most expensive time of day to depart to Spain is in the afternoon when prices are around $708.

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

You are more likely to see cheaper flights to Spain from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Spain for around $567 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Spain from Boston for as low as $464 on momondo.

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

Delta, Aer Lingus, and American Airlines are the most popular carriers operating from Boston Logan Intl to Spain

Iberia, LEVEL and American Airlines are the top three most popular airlines that fly to Spain from Boston 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 Spain. Keep in mind that there are 23 different airlines that fly to Spain on a routine basis, so you have a few additional options to choose from.

Historically, on average around 9% of flights between Boston and Spain have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

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

Wednesday 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, Iberia have had the least number of delays on this route over the last 12 months; with about 6% of their flights experiencing any sort of delay.

As of March 2026, there are 9 flights per day flying from Boston to Spain. The most common time of day flights depart is 10:00PM, with 61% of flights taking off in the evening.

As of March 2026, there are 69 flights per week flying from Boston to Spain. The most common day of the week flights depart is Tue, with 22% of flights taking off on this day.