Cheap flights from New York John F Kennedy Intl Airport to Ireland from $278

In general, November is the cheapest month to fly from New York John F Kennedy Intl Airport to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $238. If you aren’t able to travel to Ireland during the month of November, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $242.

The cheapest day to depart on your flight to Ireland is on a Sunday when prices can be found for as low as $566. This is often the case because there is less demand to fly during this day of the week. Flights from New York John F Kennedy Intl Airport to Ireland on a Saturday will generally be more expensive and average around $638. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from New York John F Kennedy Intl Airport to Ireland in the evening for as low as $577. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the afternoon when prices are around $609.

Fly from New York John F Kennedy Intl to Dublin for the best New York John F Kennedy Intl - Ireland flight prices

You are more likely to see cheaper flights to Ireland from New York John F Kennedy Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $544 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from New York John F Kennedy Intl Airport for as low as $512 on momondo.

JetBlue, Delta, and KLM are the most popular carriers operating from New York John F Kennedy Intl to Ireland

Aer Lingus, Delta and JetBlue are the top three most popular airlines that fly to Ireland from New York John F Kennedy Intl Airport according to our data. Aer Lingus is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 12 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between New York and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 165 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights at night 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. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

The number of flights available between New York John F Kennedy Intl Airport and Ireland is 20 per day as of May 2026. The most frequent departure time is 9:00PM, with 76% of daily flights leaving in the evening.

141 flights are operational weekly from New York John F Kennedy Intl Airport to Ireland as of May 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.