Cheap flights from District of Columbia to Ireland from $266

In general, January is the cheapest month to fly from District of Columbia to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $582. 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 $630.

The cheapest day to depart on your flight to Ireland is on a Sunday when prices can be found for as low as $872. This is often the case because there is less demand to fly during this day of the week. Flights from District of Columbia to Ireland on a Saturday will generally be more expensive and average around $950. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from District of Columbia to Ireland in the evening for as low as $902. 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 afternoon when prices are around $905.

Fly from Washington, D.C. Dulles Intl to Dublin for the best District of Columbia - Ireland flight prices

You are more likely to see cheaper flights to Ireland from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $803 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from District of Columbia for as low as $747 on momondo.

There are 3 cabin classes available to choose from on District of Columbia to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

British Airways, Iberia, and Air Canada are the most popular carriers operating from District of Columbia to Ireland

Aer Lingus, United Airlines and Icelandair are the top three most popular airlines that fly to Ireland from District of Columbia according to our data. Aer Lingus is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 10 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

The number of flights available between District of Columbia and Ireland is 14 per day as of September 2026. The most frequent departure time is 5:00PM, with 65% of daily flights leaving in the evening.

As of September 2026, there are 101 flights per week flying from District of Columbia to Ireland. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.