Question 1

What is the most punctual flight time for Dublin 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 2

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

Accepted Answer

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport from Dublin for as low as £375 on momondo.

Question 3

Which airlines fly to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Aer Lingus, United Airlines and Icelandair are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Dublin according to our data. Aer Lingus is the first choice among our users, with 65% of people opting to fly with this airline when travelling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

Question 4

What cabin class options are available on Dublin to Washington, D.C. Dulles Intl flights?

Accepted Answer

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

Question 5

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

Accepted Answer

The month of January is, on average, the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Dublin, with most prices found around £351. If you aren’t able to travel during the month of January, then book flights to Washington, D.C. Dulles Intl Airport from Dublin during November instead. Flights to Washington, D.C. Dulles Intl Airport in November, while not as cheap as those in January, still average around £383.

Question 6

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

Accepted Answer

According to our data, Tuesday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Dublin. The lowest ticket price found for a Tuesday departure recently was £558. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £629.

Question 7

How many flights depart from Dublin to Washington, D.C. Dulles Intl Airport on average per week?

Accepted Answer

As of December 2025, 83 flights take off from Dublin and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

Question 8

What is the cheapest Dublin to Washington, D.C. Dulles Intl flight route?

Accepted Answer

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

Question 9

Can stopping save me money on Dublin to Washington, D.C. Dulles Intl Airport flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between Dublin to Washington, D.C. Dulles Intl Airport.

Question 10

What is the cheapest airline that flies from Dublin to Washington, D.C. Dulles Intl?

Accepted Answer

TAP AIR PORTUGAL is the most popular carrier operating from Dublin to Washington, D.C. Dulles Intl

Question 11

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

Accepted Answer

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is at midday when flights can be purchased for as low as £420. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the morning when prices are around £592.

Question 12

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 13

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

Accepted Answer

Historically, on average around 14% of flights between Dublin 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 14

Which airline has the best punctuality record on Dublin 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 15

How many flights depart from Dublin to Washington, D.C. Dulles Intl Airport on average per day?

Accepted Answer

11 flights are operational daily from Dublin to Washington, D.C. Dulles Intl Airport as of December 2025. The most popular departure time for this route is 12:00, with 100% of flights per day taking off in the afternoon.

Question 16

How have Dublin to Washington, D.C. Dulles Intl Airport flight prices changed over time?

Accepted Answer

As of December 2025, prices for Dublin to Washington, D.C. Dulles Intl Airport flights are approximately 34% more expensive when compared to flights at the same time last year.

Question 17

When did momondo last update prices for flights from Dublin Airport to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Prices for flights from Dublin Airport to Washington, D.C. Dulles Intl Airport refresh daily.

Question 18

How many operators does momondo search for flights from Dublin Airport to Washington, D.C. Dulles Intl Airport?

Accepted Answer

As of December 2025, there are 5 operators available to choose from for flights from Dublin Airport to Washington, D.C. Dulles Intl Airport.

Question 19

How old do you have to be to fly from Dublin Airport to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport to Washington, D.C. Dulles Intl Airport.

Question 20

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

Accepted Answer

The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport 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 Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best price found	£381
Fastest flight time	8h 00m
Direct flights	Mon, Tue, Thu, Fri and Sat

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom £280	Free Cancellation	Rating 7.0 590 reviews	Search Icelandair flights
Lufthansa	PriceFrom £297	Free Cancellation	Rating 6.8 7,628 reviews	Search Lufthansa flights
British Airways	PriceFrom £311	Free Cancellation	Rating 6.7 7,575 reviews	Search British Airways flights
United Airlines	PriceFrom £335	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
Aer Lingus	PriceFrom £335	Free Cancellation	Rating 7.2 1,394 reviews	Search Aer Lingus flights

Cheap flights from Dublin to Washington, D.C. from £339

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Washington, D.C. departing on 15/1. 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 Dublin to Washington, D.C. Dulles Intl Airport

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

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

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

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is at midday when flights can be purchased for as low as £420. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the morning when prices are around £592.

What is the cheapest Dublin to Washington, D.C. Dulles Intl flight route?

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

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

What cabin class options are available on Dublin to Washington, D.C. Dulles Intl flights?

There are 2 cabin classes available to choose from on Dublin to Washington, D.C. Dulles Intl 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 Dublin to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Dublin to Washington, D.C. Dulles Intl Airport.

How have Dublin to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of December 2025, prices for Dublin to Washington, D.C. Dulles Intl Airport flights are approximately 34% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Dublin to Washington, D.C. Dulles Intl?

TAP AIR PORTUGAL is the most popular carrier operating from Dublin to Washington, D.C. Dulles Intl

Which airlines fly to Washington, D.C. Dulles Intl Airport?

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

Historically, on average around 14% of flights between Dublin 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 Dublin 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 Dublin 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 Dublin to Washington, D.C. Dulles Intl Airport on average per day?

11 flights are operational daily from Dublin to Washington, D.C. Dulles Intl Airport as of December 2025. The most popular departure time for this route is 12:00, with 100% of flights per day taking off in the afternoon.

How many flights depart from Dublin to Washington, D.C. Dulles Intl Airport on average per week?

As of December 2025, 83 flights take off from Dublin and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

When to book flights from Dublin to Washington, D.C. Dulles Intl Airport

Cheap Dublin to Washington, D.C. Dulles Intl Airport (DUB to IAD) flight deals and tips

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When did momondo last update prices for flights from Dublin Airport to Washington, D.C. Dulles Intl Airport?

How many operators does momondo search for flights from Dublin Airport to Washington, D.C. Dulles Intl Airport?

How old do you have to be to fly from Dublin Airport to Washington, D.C. Dulles Intl Airport?

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

What is the most popular plane model from Dublin to Washington, D.C. Dulles Intl Airport?

What is the most popular airline from Dublin to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Dublin to Washington, D.C. Dulles Intl Airport

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