Cheap flights from the United States to Dublin from $221

In general, January is the cheapest month to fly from United States to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $390. If you’re not able to fly to Dublin in January, then February is your next best option. Flight prices from United States to Dublin during February average around $409.

The cheapest day to depart from United States to Dublin is on a Monday. Travelers who choose to depart for Dublin on a Monday will often find tickets for as low as $568. Flights from United States to Dublin on a Saturday will generally be more expensive and average around $620. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the evening is the cheapest time of day to fly from United States to Dublin when you can find flight prices for as low as $572. Flying to Dublin in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $600.

Fly from Las Vegas Harry Reid Intl to Dublin for the best United States - Dublin flight prices

You are more likely to see cheaper flights to Dublin from United States when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $542 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from United States for as low as $523 on momondo.

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

JetBlue, British Airways, and United Airlines are the most popular carriers operating from United States to Dublin

Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to Dublin from United States according to our data. Aer Lingus is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 22 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

Historically, on average around 15% of flights between United States and Dublin have experienced a delay on any given week. The average delay length over the past 12 months has been 164 minutes.

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.

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.

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

As of March 2026, there are 75 flights per day flying from United States to Dublin. The most common time of day flights depart is 6:00PM, with 100% of flights taking off in the evening.

As of March 2026, there are 527 flights per week flying from United States to Dublin. The most common day of the week flights depart is Fri, with 16% of flights taking off on this day.