Cheap flights from Dublin to Boston from $389

In general, November 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 $447. If you aren’t able to travel during the month of November, then book flights to Boston from Dublin during February instead. Flights to Boston in February, while not as cheap as those in November, still average around $463.

The cheapest day to depart from Dublin to Boston is on a Saturday when prices can be found for as low as $508. 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 $773.

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 $593. 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 evening is when there is more demand to fly to Boston, so prices are often more expensive at around $691 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 $572 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 $509 on momondo.

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

As of May 2026, prices for Dublin to Boston flights are approximately 15% more expensive when compared to flights at the same time last year.

LEVEL and JetBlue are the most popular carriers operating from Dublin to Boston Logan Intl

Aer Lingus, Delta and Air France 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 67% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 5 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 Dublin and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 123 minutes.

Generally, flights departing in the morning 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. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, JetBlue have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 78% of momondo users choosing 1-stop flights on this route connected there.

Flights via Madrid (MAD) offer the lowest average round-trip price of $526.

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 10h 21m.

Reykjavik (KEF) has the shortest average layover time for this route: 1h 40m.

As of May 2026, there are 18 flights per day flying from Dublin to Boston. The most common time of day flights depart is 4:00PM, with 77% of flights taking off in the afternoon.

The number of flights available between Dublin and Boston is 126 per week as of May 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.