Cheap flights from Boston to Spain from $254

If you don’t want to visit Spain in January, then you should wait until February to fly from Boston, when ticket prices are also cheap, with an average price of $570.

The cheapest day to depart from Boston to Spain is on a Monday when prices can be found for as low as $674. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Spain for around $804.

Flying to Spain from Boston in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $718 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Spain is in the evening when prices are around $753.

Fly from Boston Logan Intl to Madrid Barajas 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 $686 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 $639 on momondo.

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

Icelandair, United Airlines, and Delta are the most popular carriers operating from Boston Logan Intl to Spain

Iberia, Delta and LEVEL 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 50% 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 15% 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 140 minutes.

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

Monday 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 9% of their flights experiencing any sort of delay.

As of September 2026, there are 17 flights per day flying from Boston to Spain. The most common time of day flights depart is 5:00PM, with 57% of flights taking off in the evening.

As of September 2026, there are 122 flights per week flying from Boston to Spain. The most common day of the week flights depart is Sun, with 19% of flights taking off on this day.