Cheap flights from the United States to Ireland from $138
This is the cheapest round-trip 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 8/13. 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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How to get the cheapest flight ticket from United States to Ireland
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Ireland?
In general, January 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 $479. If you aren’t able to travel to Ireland during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $486.
What is the cheapest day to depart on your flight to Ireland?
The cheapest day to depart on your flight to Ireland is on a Wednesday when prices can be found for as low as $729. 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 $853. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Ireland?
According to our data, the cheapest time of day to fly to Ireland is in the afternoon. momondo users have found flights departing from United States to Ireland in the afternoon for as low as $666. 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.
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?
You are more likely to see cheaper flights to Ireland from United States when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $621 when searching 10 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 $567 on momondo.
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.
What is the cheapest airline that flies from United States to Ireland?
TAP AIR PORTUGAL, Icelandair, and WestJet are the most popular carriers operating from United States to Ireland
What airlines fly to Ireland?
Aer Lingus, United Airlines and Delta 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 62% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 20 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.
How many flights depart from United States to Ireland on average per day?
As of June 2025, there are 76 flights per day flying from United States to Ireland. The most common time of day flights depart is 5:00PM, with 69% of flights taking off in the evening.
How many flights depart from United States to Ireland on average per week?
532 flights are operational weekly from United States to Ireland as of June 2025. The most popular departure day for this route is Thu, with 15% of flights per week taking off on this day.
Cheap United States to Ireland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from United States to Ireland
When did momondo last update prices for flights from United States to Ireland?
Prices for flights from United States to Ireland refresh daily.
How many operators does momondo search for flights from United States to Ireland?
The number of operators available for flights from United States to Ireland is 22 as of June 2025.
How old do you have to be to fly from United States to Ireland?
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.
What documentation or ID do you need to fly to Ireland?
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.
What is the most popular plane model from United States to Ireland?
momondo data reveals that the most frequently booked plane model on the route from United States to Ireland is Boeing 777, representing 16.74% of all bookings. The subsequent popular models are Boeing 767-300 (winglets) at 16.18%, Boeing 757-200 at 11.99%, and Airbus A330 at 7.97%.
Best airlines flying from United States to Ireland
Compare and see reviews for airlines that fly from United States to Ireland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $204 | Free Cancellation | Rating 7.5 1,623 reviews | |||
| PriceFrom $248 | Free Cancellation | Rating 7.3 2,925 reviews | |||
| PriceFrom $281 | Free Cancellation | Rating 7.0 102 reviews | |||
| PriceFrom $288 | Free Cancellation | Rating 7.3 1,387 reviews | |||
| PriceFrom $292 | Free Cancellation | Rating 8.0 7,950 reviews | |||
| PriceFrom $344 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $352 | Free Cancellation | Rating 7.1 1,885 reviews | |||
| PriceFrom $365 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom $386 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $391 | Free Cancellation | Rating 7.0 2,776 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from United States to Ireland?
It is quick and easy to find United States to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits you.
Can I find flights from United States to Ireland with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for United States to Ireland flights to just show those with flexible booking policies.
How can momondo help me find flights from United States to Ireland?
Once you have performed a search for United States to Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from United States to Ireland right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of United States to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.