Q: How much does it cost for a return flight from Dublin to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment. Dublin to Washington, D.C. Dulles Intl Airport flights typically cost between £542 and £710 in September. The cheapest return flight price found within the last 3 days was £457 on Delta (2 Sept-28 Oct).

Question 1

How much does it cost for a return flight from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Airfare is below average for this route at the moment.Dublin to Washington, D.C. Dulles Intl Airport flights typically cost between £542 and £710 in September.
The cheapest return flight price found within the last 3 days was £457 on Delta (2 Sept-28 Oct).

Question 2

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

Accepted Answer

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Question 3

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

Accepted Answer

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

Question 4

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

Accepted Answer

About 15% of weekly flights between Dublin and Washington, D.C. have experienced delays in the past year, with the average delay time being 157 minutes.

Question 5

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

Accepted Answer

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 14% of flights being delayed.

Question 6

What’s the fastest stopover option from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Flights via Reykjavik (KEF) have the shortest average one-way travel time for one-stop routes: 11h 43m.

Question 7

What’s the top stopover airport for flights from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Reykjavik (KEF) – chosen by Cheapflights users on 63% of one-stop itineraries from Dublin to Washington, D.C. Dulles Intl Airport on Cheapflights.

Question 8

What’s the cheapest stopover airport for flights from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

London (LHR) is the most affordable one-stop option, with an average return flight price of £330.

Question 9

Which airport typically offers the quickest stopover for flights from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Flights via London (LHR) offer the fastest connection on this route, with an average stopover time of 1h 50m.

Question 10

How long is the flight from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

For as low as £460, Delta can have you in Washington, D.C. Dulles Intl Airport from Dublin in 11h 40m. Airlines will cover a distance of 3393 mi.

Question 11

What are the cheapest airlines flying from Dublin to Washington, D.C. Dulles Intl Airport round-trip?

Accepted Answer

Flying on Lufthansa is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at £300. Additional return tickets that might be worth considering are offered by United Airlines and Aer Lingus, with the lowest prices starting at £340 and £345, respectively. You may be able to fly from Dublin to Washington, D.C. Dulles Intl Airport for 38% less than the average price by searching for these airlines.

Question 12

How far ahead should I book a flight from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

To ensure you get the cheapest price possible for a flight from Dublin to Washington, D.C. Dulles Intl Airport, you should look to book at least 35 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Question 13

What is the cheapest month to book a flight from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Currently, November is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of £369). Flying from Dublin to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of £642). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 14

Weekly flight availability from Dublin to Washington, D.C. Dulles Intl Airport

Accepted Answer

The most flights from DUB to IAD are scheduled on a Monday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

Question 15

E

Accepted Answer

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Question 16

E

Accepted Answer

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Question 17

What are the cheapest flights from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

The cheapest flight price from Dublin to Washington, D.C. Dulles Intl Airport is £440. On average you can expect to pay £1,268. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for £447.

Question 18

What are the most reliable airlines from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Dublin to Washington, D.C. Dulles Intl Airport consider choosing Qatar Airways (90%), American Airlines (89%) or Aer Lingus (89%) as they are the most reliable in getting you off to your destination on time.

Question 19

What are the most popular airlines that fly from Dublin to Washington, D.C. Dulles Intl Airport?

Accepted Answer

The most popular airlines flying from Dublin to Washington, D.C. Dulles Intl Airport are Aer Lingus, United Airlines and Lufthansa. Something to consider prior to booking your flight.

Question 20

What is the cheapest time of day to fly from DUB to IAD?

Accepted Answer

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Washington, D.C. Dulles Intl Airport as you normally would.

Question 21

What airport do you fly from for flights from Dublin to Washington, D.C. Dulles Intl?

Accepted Answer

For a flight from Dublin to Washington, D.C. Dulles Intl, you will be flying from Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 14 outbound flights to Washington, D.C. Dulles Intl per day. 3 airlines have flights to Washington, D.C. Dulles Intl from Dublin on a regular basis.

Question 22

Can I find deals for flights from Dublin to Dulles Intl that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Dublin to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 23

How can I find direct flights from Dublin to Dulles Intl?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Dulles Intl.

Question 24

Can I find deals for business class flights from Dublin to Dulles Intl?

Accepted Answer

Yes. Cheapflights offers flight deals from Dublin to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 25

How does Cheapflights help users find flights from Dublin to Dulles Intl?

Accepted Answer

Deals for Dublin to Dulles Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 26

Why should you use Cheapflights to find cheap flight tickets from Dublin to Dulles Intl?

Accepted Answer

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Dublin to Dulles Intl for you. Better yet — we are completely free to use.

Question 27

Can Cheapflights find flights from Dublin to Dulles Intl with no change fees?

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Dulles Intl flexibly with Cheapflights today.

Question 28

Can Cheapflights notify me if prices for flights from Dublin to Dulles Intl become cheaper?

Accepted Answer

Of course! You can now track prices for flights from Dublin to Dulles Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

Round-trip from	£458
One-way from	£339
Popular in	August
Cheapest in	November
Average price	£583
Good round-trip deal	£530 or less

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£300	Average£420	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£340	Average£606	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£345	Average£458	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

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

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/7. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dublin to Dulles Intl

Cheapest flights from Dublin to Dulles IntlExplore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2026.

Explore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2026.

Best flights from Dublin to Dulles IntlDiscover carefully curated flight deals from Dublin to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 June 2026.

Discover carefully curated flight deals from Dublin to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 June 2026.

Direct flights from Dublin to Dulles IntlExplore direct flight options from Dublin to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 June 2026.

Explore direct flight options from Dublin to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 June 2026.

Last-minute flights from Dublin to Dulles IntlDiscover last-minute flight deals from Dublin to Dulles Intl. Data last updated 30 June 2026 and is based on user searches.

Discover last-minute flight deals from Dublin to Dulles Intl. Data last updated 30 June 2026 and is based on user searches.

One-way flights from Dublin to Dulles IntlSearch for one-way flight options from Dublin to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 30 June 2026.

Search for one-way flight options from Dublin to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 30 June 2026.

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Everything you need to know about your flight from Dublin to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Dublin to Washington, D.C. Dulles Intl Airport?

What is the cheapest month to book a flight from Dublin to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to fly from DUB to IAD?

How much does it cost for a return flight from Dublin to Washington, D.C. Dulles Intl Airport?

Weekly flight availability from Dublin to Washington, D.C. Dulles Intl Airport

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

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

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

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

What’s the top stopover airport for flights from Dublin to Washington, D.C. Dulles Intl Airport?

What’s the cheapest stopover airport for flights from Dublin to Washington, D.C. Dulles Intl Airport?

What’s the fastest stopover option from Dublin to Washington, D.C. Dulles Intl Airport?

Which airport typically offers the quickest stopover for flights from Dublin to Washington, D.C. Dulles Intl Airport?

Reviews of airlines servicing Dulles Intl

Related info for your journey

Find useful and relevant information for your journey from Dublin to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Dublin to Washington, D.C. Dulles Intl?

How long is the flight from Dublin to Washington, D.C. Dulles Intl Airport?

What are the cheapest airlines flying from Dublin to Washington, D.C. Dulles Intl Airport round-trip?

What are the most reliable airlines from Dublin to Washington, D.C. Dulles Intl Airport?

What are the cheapest flights from Dublin to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Dublin to Dulles Intl that include hotel bookings?

How can I find direct flights from Dublin to Dulles Intl?

Can I find deals for business class flights from Dublin to Dulles Intl?

What is the cheapest month to book a flight from Dublin to Washington, D.C. Dulles Intl Airport?

Travelling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Dublin to Dulles Intl

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Complete your trip

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Other flights to Dulles Intl

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Dublin and Dulles Intl flights

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Top 3 airlines flying from Dublin to Dulles Intl

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Cheapest flights from Dublin to Dulles Intl
Explore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 June 2026.

Best flights from Dublin to Dulles Intl
Discover carefully curated flight deals from Dublin to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 June 2026.

Direct flights from Dublin to Dulles Intl
Explore direct flight options from Dublin to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 June 2026.

Last-minute flights from Dublin to Dulles Intl
Discover last-minute flight deals from Dublin to Dulles Intl. Data last updated 30 June 2026 and is based on user searches.

One-way flights from Dublin to Dulles Intl
Search for one-way flight options from Dublin to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 30 June 2026.