Question 1

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 $571 when searching weeks out. 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 $527 on momondo.

Question 2

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 3

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

Accepted Answer

According to our data, JetBlue 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.

Question 4

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

Accepted Answer

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

Question 5

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

Accepted Answer

As of December 2025, there are 80 flights per day flying from United States to Ireland. The most common time of day flights depart is 7:00PM, with 75% of flights taking off in the evening.

Question 6

What airlines fly to Ireland?

Accepted Answer

Aer Lingus, United Airlines and American Airlines 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 56% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 22 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

Question 7

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 Sunday when prices can be found for as low as $734. This is often the case because there is less demand to fly during this day of the week. Flights from United States to Ireland on a Saturday will generally be more expensive and average around $855. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Question 8

What is the cheapest United States to Ireland flight route?

Accepted Answer

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

Question 9

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

Accepted Answer

Tuesday 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.

Question 10

What is the cheapest month to fly to Ireland?

Accepted Answer

In general, October is the cheapest month to fly from United States to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $423. If you aren’t able to travel to Ireland during the month of October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $444.

Question 11

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

Accepted Answer

565 flights are operational weekly from United States to Ireland as of December 2025. The most popular departure day for this route is Wed, with 16% of flights per week taking off on this day.

Question 12

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

Accepted Answer

You could potentially save up to 35% on your flight if you consider stops on a United States to Ireland flight.

Question 13

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 14

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

Accepted Answer

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from United States to Ireland in the evening for as low as $772. 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 morning when prices are around $849.

Question 15

How long is the flight from United States to Ireland?

Accepted Answer

Flight times from United States to Ireland vary, but if you’re flying out of Boston and flying into Dublin (one of the most popular routes), then the duration is 5h 55m on average. Another popular route from United States to Ireland is flying from New York to Dublin, which will take roughly 6h 20m. Keep in mind that layovers or delays could extend your travel time.

Question 16

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 in the evening have, in the past, seen delays more frequently in comparison.

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 refresh daily.

Question 18

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

Accepted Answer

The number of operators available for flights from United States to Ireland is 20 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 for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States to Ireland.

Question 20

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

Accepted Answer

The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best Price Found	$311
Fastest flight time	5h 50m
Direct flights	Every day
Airports in Ireland	77 airports

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $88	Free Cancellation	Rating 7.2 2,896 reviews	Search JetBlue flights
SWISS	PriceFrom $204	Free Cancellation	Rating 7.5 1,815 reviews	Search SWISS flights
Delta	PriceFrom $244	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Lufthansa	PriceFrom $246	Free Cancellation	Rating 6.8 7,634 reviews	Search Lufthansa flights
PLAY	PriceFrom $292	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
British Airways	PriceFrom $338	Free Cancellation	Rating 6.7 7,585 reviews	Search British Airways flights
Air Canada	PriceFrom $347	Free Cancellation	Rating 7.1 10,534 reviews	Search Air Canada flights
United Airlines	PriceFrom $349	Free Cancellation	Rating 7.4 9,091 reviews	Search United Airlines flights
Air France	PriceFrom $351	Free Cancellation	Rating 7.4 1,508 reviews	Search Air France flights
Icelandair	PriceFrom $356	Free Cancellation	Rating 7.0 591 reviews	Search Icelandair flights

Cheap flights from the United States to Ireland from $226

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 3/2. 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?

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 New York John F Kennedy Intl 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?

You could potentially save up to 35% on your flight if you consider stops on a United States to Ireland flight.

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

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

What 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 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 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.

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

According to our data, JetBlue 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.

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

As of December 2025, there are 80 flights per day flying from United States to Ireland. The most common time of day flights depart is 7:00PM, with 75% of flights taking off in the evening.

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

565 flights are operational weekly from United States to Ireland as of December 2025. The most popular departure day for this route is Wed, with 16% of flights per week taking off on this day.

How long is the flight from United States to Ireland?

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?

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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?

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Best airlines flying from United States to Ireland

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