Cheap flights from Dublin to Boston from $401

In general, February is the cheapest month to fly from Dublin to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $442. If you aren’t able to travel during the month of February, then book flights to Boston from Dublin during November instead. Flights to Boston in November, while not as cheap as those in February, still average around $463.

The cheapest day to depart from Dublin to Boston is on a Thursday when prices can be found for as low as $576. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $763.

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from Dublin to Boston in the afternoon for as low as $614. 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 $725 per ticket.

Fly from Dublin to Boston Logan Intl for the best Dublin - Boston Logan Intl flight prices

You are more likely to see cheaper flights to Boston from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $598 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Dublin for as low as $560 on momondo.

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

No. A direct flight is the cheapest option for a flight between Dublin to Boston.

As of September 2026, prices for Dublin to Boston flights are approximately 29% cheaper when compared to flights at the same time last year.

Aer Lingus and British Airways are the most popular carriers operating from Dublin to Boston Logan Intl

Aer Lingus, Delta and JetBlue are the top three most popular airlines that fly to Boston from Dublin according to our data. Aer Lingus is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 4 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between Dublin and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 128 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. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, Delta 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.

Reykjavik (KEF) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $507.

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 12h 48m.

Reykjavik (KEF) has the shortest average layover time for this route: 2h 51m.

As of September 2026, there are 13 flights per day flying from Dublin to Boston. The most common time of day flights depart is 4:00PM, with 94% of flights taking off in the afternoon.

The number of flights available between Dublin and Boston is 92 per week as of September 2026. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.