Cheap flights from Washington, D.C. to Ireland from $243
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Ireland departing on 7/27. 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 Washington, D.C. 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 Washington, D.C. to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $528. If you aren’t able to travel to Ireland during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $549.
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 Sunday when prices can be found for as low as $453. This is often the case because there is less demand to fly during this day of the week. Flights from Washington, D.C. to Ireland on a Monday will generally be more expensive and average around $701. 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 Washington, D.C. to Ireland in the afternoon for as low as $475. 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 $996.
What is the cheapest Washington, D.C. to Ireland flight route?
Fly from Washington, D.C. Dulles Intl to Dublin for the best Washington, D.C. - 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 Washington, D.C. when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $552 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Washington, D.C. for as low as $487 on momondo.
What cabin class options are available on Washington, D.C. to Ireland flights?
There are 3 cabin classes available to choose from on Washington, D.C. 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 Washington, D.C. to Ireland?
Icelandair, PLAY, and TAP AIR PORTUGAL are the most popular carriers operating from Washington, D.C. to Ireland
What airlines fly to Ireland?
Aer Lingus, United Airlines and PLAY are the top three most popular airlines that fly to Ireland from Washington, D.C. according to our data. Aer Lingus is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 11 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 Washington, D.C. to Ireland on average per day?
11 flights are operational daily from Washington, D.C. to Ireland as of June 2025. The most popular departure time for this route is 10:00PM, with 73% of flights per day taking off in the evening.
How many flights depart from Washington, D.C. to Ireland on average per week?
The number of flights available between Washington, D.C. and Ireland is 81 per week as of June 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.
Cheap Washington, D.C. to Ireland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Ireland
When did momondo last update prices for flights from Washington, D.C. to Ireland?
Prices for flights from Washington, D.C. to Ireland are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Ireland?
There are 11 operators available for flights from Washington, D.C. to Ireland as of June 2025.
How old do you have to be to fly from Washington, D.C. to Ireland?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Ireland.
What documentation or ID do you need to fly to Ireland?
The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. to Ireland?
Based on momondo bookings for flights between Washington, D.C. and Ireland, the leading plane model is Boeing 757-200, making up 30.73% of the total bookings. Other popular models include Airbus A321neo with 20.22%, Boeing 777 with 11.19%, and Boeing 777-300ER with 8.54%.
Best airlines flying from Washington, D.C. to Ireland
Compare and see reviews for airlines that fly from Washington, D.C. to Ireland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $283 | Free Cancellation | Rating 7.0 102 reviews | |||
| PriceFrom $322 | Free Cancellation | Rating 7.3 1,387 reviews | |||
| PriceFrom $415 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $457 | Free Cancellation | Rating 7.1 1,117 reviews | |||
| PriceFrom $457 | Free Cancellation | Rating 6.6 7,008 reviews | |||
| PriceFrom $491 | Free Cancellation | Rating 7.8 1,358 reviews | |||
| PriceFrom $496 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $526 | Free Cancellation | Rating 7.3 2,925 reviews | |||
| PriceFrom $548 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $550 | Free Cancellation | Rating 7.2 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Ireland?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Ireland. momondo saves you time and could save you money on your trip.
Can I find flights from Washington, D.C. to Ireland with flexible booking policies on momondo?
momondo does allow users to show only those flights to Ireland from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Washington, D.C. to Ireland?
Once you have performed a search for Washington, D.C. 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 Washington, D.C. to Ireland right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Ireland, momondo offers a useful price alert feature which will track prices for flights to Ireland from Washington, D.C. and alert you when they change.