Question 1

How long is the flight from United States to Ireland?

Accepted Answer

On average, it takes 5h 55m to fly from United States to Ireland if you fly out of Boston (the most popular airport in United States) and into Dublin (the most popular airport in Ireland). If you’re flying out of New York and into Dublin, then the flight time is around 6h 20m.

Question 2

How many flights depart from United States to Ireland on average per day?

Accepted Answer

The number of flights available between United States and Ireland is 83 per day as of December 2025. The most frequent departure time is 19:00, with 75% of daily flights leaving in the evening.

Question 3

What is the most punctual flight time for the United States to Ireland flights?

Accepted Answer

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Question 4

What is the cheapest day to depart on your flight to Ireland?

Accepted Answer

The cheapest day to depart on your flight to Ireland is on a Friday when prices can be found for as low as €421. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around €579. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.

Question 5

How far in advance should I book a flight to Ireland?

Accepted Answer

You are more likely to see cheaper flights to Ireland from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €486 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from United States for as low as €449 on momondo.

Question 6

What cabin class options are available on United States to Ireland flights?

Accepted Answer

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

Question 7

Can stopping save me money on United States to Ireland flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between United States to Ireland.

Question 8

What is the cheapest airline that flies from United States to Ireland?

Accepted Answer

Lufthansa, United Airlines, and Delta are the most popular carriers operating from United States to Ireland

Question 9

Which airline has the best punctuality record on the United States to Ireland flights?

Accepted Answer

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

Question 10

How often are flights from the United States to Ireland delayed?

Accepted Answer

Historically, on average around 16% of flights between United States and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 164 minutes.

Question 11

How many flights depart from United States to Ireland on average per week?

Accepted Answer

As of December 2025, there are 586 flights per week flying from United States to Ireland. The most common day of the week flights depart is Thu, with 15% of flights taking off on this day.

Question 12

Which airlines fly to Ireland?

Accepted Answer

Aer Lingus, United Airlines and JetBlue are the top three most popular airlines that fly to Ireland from United States according to our data. Aer Lingus is the first choice among our users, with 63% of people opting to fly with this airline when travelling to Ireland. Keep in mind that there are 4 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

Question 13

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Question 14

What is the cheapest month to fly to Ireland?

Accepted Answer

The month of November is another great option to travel to Ireland, with average flight prices from United States averaging around €378.

Question 15

What is the cheapest United States to Ireland flight route?

Accepted Answer

Fly from Newark to Dublin for the best United States - Ireland flight prices

Question 16

What is the cheapest time of day to depart on your flight to Ireland?

Accepted Answer

In the morning is the cheapest time of day to fly from United States to Ireland when you can find flight prices for as low as €463. Flying to Ireland in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is in the evening when prices are around €515.

Question 17

When did momondo last update prices for flights from United States to Ireland?

Accepted Answer

Prices for flights from United States to Ireland are refreshed on a daily basis.

Question 18

How many operators does momondo search for flights from United States to Ireland?

Accepted Answer

There are 4 operators available for flights from United States to Ireland as of December 2025.

Question 19

How old do you have to be to fly from United States to Ireland?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United States to Ireland.

Question 20

What documentation or ID do you need to fly to Ireland?

Accepted Answer

The required travel and health documents for your Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best price found	€203
Fastest flight time	5h 50m
Direct flights	Every day
Airports in Ireland	77 airports

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom €233	Free Cancellation	Rating 7.9 8,009 reviews	Search Delta flights
United Airlines	PriceFrom €297	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
Aer Lingus	PriceFrom €305	Free Cancellation	Rating 7.2 1,399 reviews	Search Aer Lingus flights
JetBlue	PriceFrom €356	Free Cancellation	Rating 7.2 2,896 reviews	Search JetBlue flights

Cheap flights from the United States to Ireland from €187

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to Ireland departing on 19/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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See travel insights to Ireland from

How to get the cheapest flight ticket from United States to Ireland

What is the cheapest month to fly to Ireland?

The month of November is another great option to travel to Ireland, with average flight prices from United States averaging around €378.

What is the cheapest day to depart on your flight to Ireland?

What is the cheapest time of day to depart on your flight to Ireland?

What is the cheapest United States to Ireland flight route?

Fly from Newark to Dublin for the best United States - Ireland flight prices

How far in advance should I book a flight to Ireland?

What cabin class options are available on United States to Ireland flights?

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

Can stopping save me money on United States to Ireland flights?

No. A direct flight is the cheapest option for a flight between United States to Ireland.

What is the cheapest airline that flies from United States to Ireland?

Lufthansa, United Airlines, and Delta are the most popular carriers operating from United States to Ireland

Which airlines fly to Ireland?

How often are flights from the United States to Ireland delayed?

Historically, on average around 16% of flights between United States and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 164 minutes.

What is the most punctual flight time for the United States to Ireland flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on the United States to Ireland flights?

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

How many flights depart from United States to Ireland on average per day?

The number of flights available between United States and Ireland is 83 per day as of December 2025. The most frequent departure time is 19:00, with 75% of daily flights leaving in the evening.

How many flights depart from United States to Ireland on average per week?

As of December 2025, there are 586 flights per week flying from United States to Ireland. The most common day of the week flights depart is Thu, with 15% of flights taking off on this day.

How long is the flight from United States to Ireland?

On average, it takes 5h 55m to fly from United States to Ireland if you fly out of Boston (the most popular airport in United States) and into Dublin (the most popular airport in Ireland). If you’re flying out of New York and into Dublin, then the flight time is around 6h 20m.

Cheap United States to Ireland flight deals and tips

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When did momondo last update prices for flights from United States to Ireland?

How many operators does momondo search for flights from United States to Ireland?

How old do you have to be to fly from United States to Ireland?

What documentation or ID do you need to fly to Ireland?

What is the most popular plane model from United States to Ireland?

Best airlines flying from United States to Ireland

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Why use momondo?

Why should I use momondo to find a flight deal from United States to Ireland?

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How can momondo help me find flights from United States to Ireland?

I’m not ready to book a flight from United States to Ireland right now. Can momondo alert me if prices change?

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