Cheap flights from Boston to Barcelona from C$ 445

The cheapest month to fly to Barcelona-El Prat Airport from Boston is in September. Flight prices, which tend to average around C$ 651, are often lower during this time because this is during the off-season. If you are unable to visit Barcelona-El Prat Airport during the month of September, then departing from Boston during the month October is also very affordable. Most momondo users find prices during this month for around C$ 655.

The cheapest day to depart from Boston to Barcelona-El Prat Airport is on a Monday. Travellers who choose to depart for Barcelona-El Prat Airport on a Monday will often find tickets for as low as C$ 563. On the other hand, Friday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 867.

Our most recent data shows that the best time of day to fly to Barcelona-El Prat Airport is in the evening. Flights from Boston to Barcelona-El Prat Airport during this time can be as low as C$ 627. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are C$ 867 on average. Flights to Barcelona-El Prat Airport from Boston in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

You are more likely to see cheaper flights to Barcelona-El Prat Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona-El Prat Airport for around C$ 787 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona-El Prat Airport from Boston for as low as C$ 638 on momondo.

No. A direct flight is the cheapest option for a flight between Boston to Barcelona-El Prat Airport.

As of May 2026, prices for Boston to Barcelona-El Prat Airport flights are approximately 21% cheaper when compared to flights at the same time last year.

Icelandair, LEVEL, and Lufthansa are the most popular carriers operating from Boston Logan Intl to Barcelona-El Prat

Iberia, Vueling and LEVEL are the top three most popular airlines that fly to Barcelona-El Prat Airport from Boston according to our data. Iberia is the first choice among our users, with 27% of people opting to fly with this airline when travelling to Barcelona-El Prat Airport. Keep in mind that there are 4 different airlines that fly to Barcelona-El Prat Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Boston and Barcelona have experienced a delay on any given week. The average delay length over the past 12 months has been 132 minutes.

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

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

According to our data, LEVEL has had the least delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

2 flights are operational daily from Boston to Barcelona-El Prat Airport as of May 2026. The most popular departure time for this route is 10:00p.m., with 100% of flights per day taking off in the evening.

17 flights are operational weekly from Boston to Barcelona-El Prat Airport as of May 2026. The most popular departure day for this route is Thu, with 29% of flights per week taking off on this day.