Cheap flights from Ireland to Las Vegas from $377

The month of January is, on average, the cheapest month to fly to Las Vegas from Ireland, with most prices found around $579. The month of December is another great option to travel to Las Vegas, with average flight prices from Ireland averaging around $649.

Our data shows that Thursday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $579. Flights from Ireland to Las Vegas on a Tuesday will generally be more expensive and average around $765. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

The cheapest time of day to fly to Las Vegas is at noon when flights can be purchased for as low as $636. Flights to Las Vegas are more costly in the afternoon, with an average ticket price of $647. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Las Vegas from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $720 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Ireland for as low as $598 on momondo.

There is only 1 cabin class available to choose from on Ireland to Las Vegas flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta and KLM are the most popular carriers operating from Ireland to Las Vegas Harry Reid Intl

Aer Lingus, Delta and American Airlines are the top three most popular airlines that fly to Las Vegas from Ireland according to our data. Aer Lingus is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Las Vegas. Keep in mind that there are 4 different airlines that fly to Las Vegas on a routine basis, so you have a few additional options to choose from.

Historically, on average around 5% of flights between Ireland and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 90 minutes.

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

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Saturday 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 5% of their flights experiencing any sort of delay.

As of October 2026, 4 flights take off from Ireland and land in Las Vegas each week. The most common flight departure day for this route is Wed, with 100% of weekly flights taking off on this day.

The flight from Ireland to Las Vegas depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Dublin (a popular airport in Ireland) to Las Vegas (the most popular airport in Las Vegas), then the flight time is 10h 35m on average. If you fly from Shannon (another popular airport in Ireland) to Las Vegas, then the average flight time is 15h 05m.