Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

There are 2 cabin classes available to choose from on Ireland to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 3

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

Accepted Answer

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

Question 4

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

Accepted Answer

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

Question 5

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

Accepted Answer

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Question 6

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

Accepted Answer

18 flights are operational weekly from Ireland to Washington, D.C. as of December 2025. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

Question 7

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

Accepted Answer

The number of flights available between Ireland and Washington, D.C. is 2 per day as of December 2025. The most frequent departure time is 12:00, with 100% of daily flights leaving in the afternoon.

Question 8

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

Accepted Answer

British Airways, Aer Lingus, and Delta are the most popular carriers operating from Ireland to Washington, D.C.

Question 9

How far in advance should I book a flight to Washington, D.C.?

Accepted Answer

You are more likely to see cheaper flights to Washington, D.C. from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around £445 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Ireland for as low as £372 on momondo.

Question 10

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

Accepted Answer

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

Question 11

What is the cheapest month to fly to Washington, D.C.?

Accepted Answer

The cheapest month to fly to Washington, D.C. from Ireland is in February. Flight prices, which tend to average around £366, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. in February, then you should wait until January to fly from Ireland, when ticket prices are also cheap, with an average price of £370.

Question 12

What is the cheapest day to depart on your flight to Washington, D.C.?

Accepted Answer

On average, the least expensive day to fly to Washington, D.C. from Ireland is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £548. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Ireland because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £622.

Question 13

Which airlines fly to Washington, D.C.?

Accepted Answer

Aer Lingus, Icelandair and United Airlines are the top three most popular airlines that fly to Washington, D.C. from Ireland according to our data. Aer Lingus is the first choice among our users, with 53% of people opting to fly with this airline when travelling to Washington, D.C.. Keep in mind that there are 6 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

Question 14

What is the cheapest time of day to depart on your flight to Washington, D.C.?

Accepted Answer

At midday is the cheapest time of day to fly from Ireland to Washington, D.C. when you can find flight prices for as low as £415. Flying to Washington, D.C. at midday is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the morning, with an average ticket price of £585. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Question 15

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

Accepted Answer

Historically, on average around 14% of flights between Ireland and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 152 minutes.

Question 16

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

Accepted Answer

Prices for flights from Ireland to Washington, D.C. are updated daily.

Question 17

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

Accepted Answer

As of December 2025, there are 6 operators available to choose from for flights from Ireland to Washington, D.C..

Question 18

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

Accepted Answer

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to Washington, D.C..

Question 19

What documentation or ID do you need to fly to Washington, D.C.?

Accepted Answer

The necessary travel and health documents for your Washington, D.C. trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best price found	£377
Fastest flight time	8h 00m
Direct flights	Tue, Wed, Thu, Fri and Sat
Airports in Washington, D.C.	2 airports

Airline	Rating	Free Cancellation	Price
PLAY	PriceFrom £217	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
Icelandair	PriceFrom £278	Free Cancellation	Rating 7.0 592 reviews	Search Icelandair flights
Lufthansa	PriceFrom £294	Free Cancellation	Rating 6.8 7,655 reviews	Search Lufthansa flights
British Airways	PriceFrom £308	Free Cancellation	Rating 6.7 7,617 reviews	Search British Airways flights
United Airlines	PriceFrom £331	Free Cancellation	Rating 7.4 9,115 reviews	Search United Airlines flights
Aer Lingus	PriceFrom £332	Free Cancellation	Rating 7.2 1,412 reviews	Search Aer Lingus flights

Cheap flights from Ireland to Washington, D.C. from £334

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Washington, D.C. departing on 22/1. 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 Ireland to Washington, D.C.

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

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

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

How far in advance should I book a flight to Washington, D.C.?

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

There are 2 cabin classes available to choose from on Ireland to Washington, D.C. 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 Ireland to Washington, D.C. flights?

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

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

British Airways, Aer Lingus, and Delta are the most popular carriers operating from Ireland to Washington, D.C.

Which airlines fly to Washington, D.C.?

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

Historically, on average around 14% of flights between Ireland and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 152 minutes.

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

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

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

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

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

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 14% of their flights experiencing any sort of delay.

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

The number of flights available between Ireland and Washington, D.C. is 2 per day as of December 2025. The most frequent departure time is 12:00, with 100% of daily flights leaving in the afternoon.

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

18 flights are operational weekly from Ireland to Washington, D.C. as of December 2025. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

Cheap Ireland to Washington, D.C. flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Washington, D.C.

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

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

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

What documentation or ID do you need to fly to Washington, D.C.?

What is the most popular plane model from Ireland to Washington, D.C.?

Best airlines flying from Ireland to Washington, D.C.

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