Question 1

What is the cheapest airline that flies from Washington, D.C. to Ireland?

Accepted Answer

Aer Lingus, JetBlue, and United Airlines are the most popular carriers operating from Washington, D.C. to Ireland

Question 2

What is the cheapest time of day to depart on your flight to Ireland?

Accepted Answer

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from Washington, D.C. to Ireland in the evening for as low as $776. 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 $799.

Question 3

What is the most punctual flight time for Washington, D.C. to Ireland flights?

Accepted Answer

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

Question 4

Which airline has the best punctuality record on Washington, D.C. to Ireland flights?

Accepted Answer

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

Question 5

How often are flights from Washington, D.C. to Ireland delayed?

Accepted Answer

Historically, on average around 18% of flights between Washington, D.C. and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 171 minutes.

Question 6

What is the cheapest month to fly to Ireland?

Accepted Answer

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 $537. If you aren’t able to travel to Ireland during the month of January, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $608.

Question 7

How many flights depart from Washington, D.C. to Ireland on average per day?

Accepted Answer

5 flights are operational daily from Washington, D.C. to Ireland as of February 2026. The most popular departure time for this route is 5:00PM, with 100% of flights per day taking off in the afternoon.

Question 8

What is the cheapest Washington, D.C. to Ireland flight route?

Accepted Answer

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

Question 9

Can stopping save me money on Washington, D.C. to Ireland flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between Washington, D.C. to Ireland.

Question 10

What is the cheapest day to depart on your flight to Ireland?

Accepted Answer

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as $734. 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 Friday will generally be more expensive and average around $884. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Question 11

How long is the flight from Washington, D.C. to Ireland?

Accepted Answer

Flight times from Washington, D.C. to Ireland vary, but if you’re flying out of Washington, D.C. and flying into Dublin (one of the most popular routes), then the duration is 8h 27m on average. Another popular route from Washington, D.C. to Ireland is flying from Baltimore to Dublin, which will take roughly 9h 29m. Keep in mind that layovers or delays could extend your travel time.

Question 12

How many flights depart from Washington, D.C. to Ireland on average per week?

Accepted Answer

The number of flights available between Washington, D.C. and Ireland is 35 per week as of February 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Question 13

What airlines fly to Ireland?

Accepted Answer

Aer Lingus, United Airlines and Icelandair 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 55% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 13 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

Question 14

How far in advance should I book a flight to Ireland?

Accepted Answer

You are more likely to see cheaper flights to Ireland from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $709 when searching 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 $609 on momondo.

Question 15

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

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.

Question 16

What cabin class options are available on Washington, D.C. to Ireland flights?

Accepted Answer

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.

Question 17

When did momondo last update prices for flights from Washington, D.C. to Ireland?

Accepted Answer

Prices for flights from Washington, D.C. to Ireland are refreshed on a daily basis.

Question 18

How many operators does momondo search for flights from Washington, D.C. to Ireland?

Accepted Answer

There are 13 operators available for flights from Washington, D.C. to Ireland as of February 2026.

Question 19

How old do you have to be to fly from Washington, D.C. to Ireland?

Accepted Answer

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.

Question 20

What documentation or ID do you need to fly to Ireland?

Accepted Answer

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.

Best Price Found	$406
Fastest flight time	6h 50m
Direct flights	Every day
Airports in Ireland	77 airports

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $157	Free Cancellation	Rating 7.9 8,131 reviews	Search Delta flights
PLAY	PriceFrom $313	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
Icelandair	PriceFrom $369	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
Iberia	PriceFrom $391	Free Cancellation	Rating 7.0 3,101 reviews	Search Iberia flights
TAP AIR PORTUGAL	PriceFrom $428	Free Cancellation	Rating 7.1 2,132 reviews	Search TAP AIR PORTUGAL flights
American Airlines	PriceFrom $435	Free Cancellation	Rating 7.2 11,212 reviews	Search American Airlines flights
Scandinavian Airlines	PriceFrom $456	Free Cancellation	Rating 7.3 1,676 reviews	Search Scandinavian Airlines flights
Aer Lingus	PriceFrom $457	Free Cancellation	Rating 7.2 1,444 reviews	Search Aer Lingus flights
JetBlue	PriceFrom $477	Free Cancellation	Rating 7.2 2,892 reviews	Search JetBlue flights
British Airways	PriceFrom $483	Free Cancellation	Rating 6.7 7,710 reviews	Search British Airways flights

Cheap flights from Washington, D.C. to Ireland from $259

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 4/30. 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

What is the cheapest month to fly to Ireland?

What is the cheapest day to depart on your flight to Ireland?

What is the cheapest time of day to depart on your flight to Ireland?

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?

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.

Can stopping save me money on Washington, D.C. to Ireland flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. to Ireland.

What is the cheapest airline that flies from Washington, D.C. to Ireland?

Aer Lingus, JetBlue, and United Airlines are the most popular carriers operating from Washington, D.C. to Ireland

What airlines fly to Ireland?

How often are flights from Washington, D.C. to Ireland delayed?

Historically, on average around 18% of flights between Washington, D.C. and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 171 minutes.

What is the most punctual flight time for Washington, D.C. to Ireland flights?

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

What day of the week experiences the fewest flight delays on this route?

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.

Which airline has the best punctuality record on Washington, D.C. to Ireland flights?

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

How many flights depart from Washington, D.C. to Ireland on average per day?

5 flights are operational daily from Washington, D.C. to Ireland as of February 2026. The most popular departure time for this route is 5:00PM, with 100% of flights per day taking off in the afternoon.

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 35 per week as of February 2026. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

How long is the flight from Washington, D.C. to Ireland?

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