Cheap flights from Ireland to North America from £171

In general, September is the cheapest month to fly from Ireland to North America. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £342. The month of February is another great option to travel to North America, with average flight prices from Ireland averaging around £347.

The cheapest day to depart from Ireland to North America is on a Thursday when prices can be found for as low as £447. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around £512. These prices are subject to change though, so be sure to set up a Price Alert for flights to North America.

Our data shows that the cheapest Ireland to North America flights are usually those with departure times in the afternoon. Our users have found flights to North America in the afternoon for as low as £410. Flights in the morning are often more expensive, with an average ticket price of £501.

Fly from Dublin to Newark for the best Ireland - North America flight prices

You are more likely to see cheaper flights to North America from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to North America for around £431 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to North America from Ireland for as low as £370 on momondo.

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

WestJet, Air Transat, and JetBlue are the most popular carriers operating from Ireland to North America

Aer Lingus, United Airlines and KLM are the top three most popular airlines that fly to North America from Ireland according to our data. Aer Lingus is the first choice among our users, with 59% of people opting to fly with this airline when travelling to North America. Keep in mind that there are 17 different airlines that fly to North America on a routine basis, so you have a few additional options to choose from.

The number of flights available between Ireland and North America is 5 per day as of March 2026. The most frequent departure time is 11:00, with 61% of daily flights leaving in the afternoon.

41 flights are operational weekly from Ireland to North America as of March 2026. The most popular departure day for this route is Thu, with 37% of flights per week taking off on this day.