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

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

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

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 9% of flights being delayed.

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

About 14% of weekly flights between Washington, D.C. and Dublin have experienced delays in the past year, with the average delay time being 191 minutes.

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

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

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

Delta can get you from Washington, D.C. Dulles Intl Airport to Dublin in just under 15h 11m. Your travel time can differ by up to . Washington, D.C. Dulles Intl Airport and Dublin are separated by a distance of 3393 mi.

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

The most flights from IAD to DUB 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 (11 on average).

In terms of precipitation, rainfall in Dublin ranges from 49.0 - 79.0 inches per month. October is typically the wettest month, when rainfall can reach 79.0 mm. February is typically the driest time to visit Dublin when rainfall is around 49.0 mm.

If weather is an important factor for your trip to Dublin, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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

Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Dublin? While on average our users pay £731, our data indicates the cheapest price to be £401. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around £417.

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

No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Dublin consider choosing American Airlines (83%), Aer Lingus (83%) or Iberia (83%) as they are the most reliable in getting you off to your destination on time.

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

For a flight from Washington, D.C. Dulles Intl to Dublin, you will be flying into Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 13 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to Dublin from Washington, D.C. Dulles Intl on a regular basis.

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

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

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

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

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

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

£248+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Dublin

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in January or November, booked 84 days in advance, depart on a Monday or Friday and return on a Tuesday

Cheap flight deals from Dulles Intl to Dublin

Enter your travel dates to find the best prices.

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Direct

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One-way

Cheapest flights from Dulles Intl to Dublin
Explore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2026.

Mon 28/919:05 -

Nonstop7h 15m

Wed 7/1009:20 -

2 stops27h 23m

Deal found 11/9£424

Sun 4/1012:38 -

1 stop17h 32m

Sat 10/1012:20 -

1 stop30h 15m

Deal found 11/9£497

Wed 18/1107:00 -

1 stop21h 55m

Thu 26/1109:00 -

1 stop31h 45m

Deal found 8/9£499

Sun 22/1122:20 -

Nonstop7h 00m

Mon 30/1112:05 -

Nonstop8h 15m

Deal found 10/9£500

Thu 17/919:05 -

Nonstop7h 15m

Mon 21/909:20 -

1 stop30h 53m

Deal found 10/9£502

Fri 2/1012:25 -

2 stops14h 55m

Wed 7/1011:10 -

2 stops17h 16m

Deal found 11/9£502

Tue 22/918:07 -

2 stops16h 18m

Sun 27/905:55 -

1 stop14h 40m

Deal found 11/9£503

Sat 21/1122:20 -

Nonstop7h 00m

Sat 5/1212:05 -

Nonstop8h 20m

Deal found 10/9£504

Thu 17/908:20 -

1 stop20h 25m

Sat 26/909:20 -

1 stop10h 40m

Deal found 10/9£505

Thu 8/1022:35 -

Nonstop7h 05m

Mon 12/1008:50 -

Nonstop8h 00m

Deal found 11/9£507

Find flight deals from Dulles Intl to Dublin

Round-trip from	£424
One-way from	£248
Popular in	June
Cheapest in	January
Average price	£597
Good round-trip deal	£830 or less
Good one-way deal	£423 or less

United Airlines
28/9-7/10
2 total stops
34h 38m total
Washington, D.C. to Dublin

Search Deals

United Airlines
2/1-31/12
1 total stop
27h 46m total
Washington, D.C. to Dublin

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£101 potential increase over avg. return price).

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Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).

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Average for round-trip flights in September 2026

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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Dublin.

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Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Dublin.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Dublin that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Sat 19/12

06:05-07:10

2 stops44h 05m

Dublin

Wed 31/12

00:00-18:00

Nonstop0h 00m

£320

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Sun 20/12

21:45-16:55

1 stop14h 10m

Dublin

Wed 31/12

00:00-18:00

Nonstop0h 00m

£326

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Sun 20/9

17:12-08:45

1 stop10h 33m

Dublin

Wed 31/12

00:00-18:00

Nonstop0h 00m

£377

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Wed 14/10

19:05-07:20

Nonstop7h 15m

Dublin

Wed 31/12

00:00-18:00

Nonstop0h 00m

£395

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Sat 31/10

12:45-07:10

2 stops38h 25m

Dublin

Wed 31/12

00:00-18:00

Nonstop0h 00m

£413

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Fri 25/9

18:26-10:00

1 stop10h 34m

Dublin

Wed 31/12

00:00-18:00

Nonstop0h 00m

£414

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Sat 31/10

12:20-08:00

2 stops15h 40m

Dublin

Wed 31/12

00:00-18:00

Nonstop0h 00m

£420

Fastest return journey

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Thu 29/10

23:20-10:20

Nonstop7h 00m

Dublin

Wed 31/12

00:00-18:00

Nonstop0h 00m

£432

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Thu 24/9

22:10-08:15

2 stops29h 05m

Dublin

Wed 31/12

00:00-18:00

Nonstop0h 00m

£438

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Sun 4/10

12:38-11:10

1 stop17h 32m

Dublin

Sat 10/10

12:20-13:35

1 stop30h 15m

£497

Flights are sorted by cheapest return flights first.

Deals found on 7/9

Showing 1-10 of 20 resultsSorted by cheapest first

Best time to book a flight from Dulles Intl to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Dulles Intl with our price prediction graph.

IAD-DUB

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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Airlines

Delays

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

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of £458). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of £798). 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.

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

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

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

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Dublin flights typically cost between £474 and £740 in September.
The cheapest return price found within the last 5 days was £424 on United Airlines (28 Sept–7 Oct).

Related info for your journey

What airport do you fly into for flights to Dublin from Washington, D.C. Dulles Intl?
For a flight from Washington, D.C. Dulles Intl to Dublin, you will be flying into Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 13 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to Dublin from Washington, D.C. Dulles Intl on a regular basis.
How long is the flight from Washington, D.C. Dulles Intl Airport to Dublin?
Delta can get you from Washington, D.C. Dulles Intl Airport to Dublin in just under 15h 11m. Your travel time can differ by up to . Washington, D.C. Dulles Intl Airport and Dublin are separated by a distance of 3393 mi.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Dublin?
No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Dublin consider choosing American Airlines (83%), Aer Lingus (83%) or Iberia (83%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Dublin?
Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Dublin? While on average our users pay £731, our data indicates the cheapest price to be £401. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around £417.
Can I find deals for flights from Dulles Intl to Dublin that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Dublin flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Dublin?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Dublin.
Can I find deals for business class flights from Dulles Intl to Dublin?
Yes. Cheapflights offers flight deals from Dulles Intl to Dublin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Dublin?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of £458). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of £798). 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.

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Deals for Dulles Intl to Dublin 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.

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

Cheapflights simply makes it quick and affordable to book flights from Dulles Intl to Dublin by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes, we can. To see specific flights from Dulles Intl to Dublin with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Washington, D.C. Dulles Intl Airport to Dublin from £248

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/1. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dulles Intl to Dublin

Cheapest flights from Dulles Intl to DublinExplore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2026.

Explore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2026.

Best flights from Dulles Intl to DublinDiscover carefully curated flight deals from Dulles Intl to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Discover carefully curated flight deals from Dulles Intl to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Direct flights from Dulles Intl to DublinExplore direct flight options from Dulles Intl to Dublin based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 September 2026.

Explore direct flight options from Dulles Intl to Dublin based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 September 2026.

Last-minute flights from Dulles Intl to DublinDiscover last-minute flight deals from Dulles Intl to Dublin. Data last updated 12 September 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Dublin. Data last updated 12 September 2026 and is based on user searches.

One-way flights from Dulles Intl to DublinSearch for one-way flight options from Dulles Intl to Dublin. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

Search for one-way flight options from Dulles Intl to Dublin. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

Find flight deals from Dulles Intl to Dublin

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Dublin that are best for you.

Best time to book a flight from Dulles Intl to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Dulles Intl with our price prediction graph.

Cheapflights Insights

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

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

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

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

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

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Dublin flights typically cost between £474 and £740 in September.The cheapest return price found within the last 5 days was £424 on United Airlines (28 Sept–7 Oct).

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

The most flights from IAD to DUB 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 (11 on average).

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

About 14% of weekly flights between Washington, D.C. and Dublin have experienced delays in the past year, with the average delay time being 191 minutes.

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

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

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

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

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

Over the past year, Aer Lingus have had the lowest number of delays on this route, with just 9% of flights being delayed.

Related info for your journey

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

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

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

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

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

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

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

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

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

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

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

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

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Cheapest flights from Dulles Intl to Dublin
Explore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2026.

Best flights from Dulles Intl to Dublin
Discover carefully curated flight deals from Dulles Intl to Dublin that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Direct flights from Dulles Intl to Dublin
Explore direct flight options from Dulles Intl to Dublin based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 September 2026.

Last-minute flights from Dulles Intl to Dublin
Discover last-minute flight deals from Dulles Intl to Dublin. Data last updated 12 September 2026 and is based on user searches.

One-way flights from Dulles Intl to Dublin
Search for one-way flight options from Dulles Intl to Dublin. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

Washington, D.C. Dulles Intl Airport to Dublin flights typically cost between £474 and £740 in September.
The cheapest return price found within the last 5 days was £424 on United Airlines (28 Sept–7 Oct).