Cheap flights from New York to Ireland from $145

In general, January is the cheapest month to fly from New York to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $390. If you aren’t able to travel to Ireland during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $414.

The cheapest day to depart on your flight to Ireland is on a Sunday when prices can be found for as low as $573. This is often the case because there is less demand to fly during this day of the week. Flights from New York to Ireland on a Saturday will generally be more expensive and average around $628. 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 to Ireland in the evening for as low as $575. 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 $605.

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

You are more likely to see cheaper flights to Ireland from New York when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $546 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 for as low as $522 on momondo.

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

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

Aer Lingus, United Airlines and Delta are the top three most popular airlines that fly to Ireland from New York according to our data. Aer Lingus is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 17 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 169 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.

As of March 2026, 31 flights take off from New York and land in Ireland each day. The most common flight departure time for this route is 5:00PM, with 59% of daily flights taking off in the evening.

As of March 2026, there are 220 flights per week flying from New York to Ireland. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.