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

For as low as £275, Scandinavian Airlines can have you in Washington, D.C. Dulles Intl Airport from Ireland in 12h 19m. Airlines will cover a distance of 3393 mi.

What is the cheapest day to fly from Ireland to Washington, D.C. Dulles Intl Airport?

Travellers seeking maximum savings on their Ireland to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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).

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

On average you can expect to pay £578 for a flight from Ireland to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is £384 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at £622.

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

Before booking your flight to Washington, D.C. Dulles Intl Airport from Ireland, check out the most reliable airlines to get you to your destination on time: Iberia (72%), American Airlines (69%), Aer Lingus( 69%).

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

Consider British Airways, Aer Lingus or Icelandair when booking your flight. These represent the most popular airlines when flying from Ireland to Washington, D.C. Dulles Intl Airport.

What is the cheapest day to fly round-trip from Ireland to Washington, D.C. Dulles Intl Airport?

It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

To save up to 84% on this flight, we recommend booking at least 58 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ireland to Washington, D.C. Dulles Intl Airport from £396 1-2 weeks out and tickets from £462 for flights departing within the next 72 hours.

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

January is one of the best times of the year to fly to Washington, D.C. Dulles Intl Airport from Ireland. Prices for January average £423 per person but you can even find prices for as low as £202. The most expensive prices can be found in the month of August. Opting for a January flight can save you 37% on your journey compared to booking in August

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

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

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

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

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

Yes. Cheapflights offers flight deals from Ireland 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.

£270+ Cheap Flights from Ireland to Washington, D.C. Dulles Intl Airport

Cheap flight deals from Ireland to Dulles Intl

Round-trip from	£275
One-way from	£270
Popular in	August
Cheapest in	January
Average price	£579
Good round-trip deal	£485 or less

Scandinavian Airlines
2/10-9/10
3 total stops
68h 44m total
Ireland to Washington, D.C.

Search Deals

TAP AIR PORTUGAL
19/9
1 total stop
14h 50m total
Ireland to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£50 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

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

Search Deals

Find flight deals from Ireland to Dulles Intl

Cheapest flights from Ireland to Dulles Intl
Explore the most affordable flight options available from Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Thu 2/1012:40DUB - IAD

1 stop12h 19mScandinavian Airlines

Thu 9/1022:05IAD - DUB

2 stops56h 25mScandinavian Airlines

Deal found 17/8£275

Tue 28/1019:05DUB - IAD

1 stop27h 10mScandinavian Airlines

Thu 13/1120:30IAD - DUB

1 stop16h 50mScandinavian Airlines

Deal found 18/8£290

Tue 28/1019:05DUB - IAD

1 stop27h 10mScandinavian Airlines

Sat 8/1120:30IAD - DUB

1 stop34h 15mScandinavian Airlines

Deal found 18/8£291

Wed 22/1019:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Sat 8/1120:30IAD - DUB

1 stop34h 15mScandinavian Airlines

Deal found 18/8£294

Mon 6/1019:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Tue 14/1022:05IAD - DUB

1 stop15h 10mScandinavian Airlines

Deal found 18/8£295

Mon 13/1019:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Thu 23/1022:05IAD - DUB

2 stops16h 05mScandinavian Airlines

Deal found 19/8£299

Thu 18/914:15DUB - IAD

1 stop10h 05mIcelandair

Mon 29/920:30IAD - DUB

1 stop11h 45mIcelandair

Deal found 18/8£307

Tue 28/1019:05DUB - IAD

1 stop27h 10mScandinavian Airlines

Wed 5/1120:30IAD - DUB

1 stop16h 50mScandinavian Airlines

Deal found 18/8£308

Wed 22/1019:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Wed 5/1120:30IAD - DUB

1 stop34h 15mScandinavian Airlines

Deal found 18/8£312

Fri 3/1019:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Mon 13/1022:05IAD - DUB

1 stop15h 10mScandinavian Airlines

Deal found 18/8£313

Best flights from Ireland to Dulles Intl
Discover carefully curated flight deals from Ireland to Dulles Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 19 August 2025.

Thu 2/1012:40DUB - IAD

1 stop12h 19mScandinavian Airlines

Thu 9/1022:05IAD - DUB

2 stops56h 25mScandinavian Airlines

Deal found 17/8£275

Tue 28/1019:05DUB - IAD

1 stop27h 10mScandinavian Airlines

Thu 13/1120:30IAD - DUB

1 stop16h 50mScandinavian Airlines

Deal found 17/8£290

Sat 13/1210:10DUB - IAD

1 stop13h 40mScandinavian Airlines

Thu 8/120:30IAD - DUB

1 stop31h 55mScandinavian Airlines

Deal found 17/8£291

Tue 28/1019:05DUB - IAD

1 stop27h 10mScandinavian Airlines

Sat 8/1120:30IAD - DUB

1 stop34h 15mScandinavian Airlines

Deal found 18/8£291

Tue 28/1019:05DUB - IAD

1 stop27h 10mScandinavian Airlines

Mon 10/1120:30IAD - DUB

1 stop34h 15mScandinavian Airlines

Deal found 18/8£291

Wed 22/1019:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Sat 8/1120:30IAD - DUB

1 stop34h 15mScandinavian Airlines

Deal found 18/8£294

Mon 13/1019:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Thu 23/1022:05IAD - DUB

1 stop30h 20mScandinavian Airlines

Deal found 19/8£294

Wed 22/1019:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Mon 10/1120:30IAD - DUB

1 stop16h 50mScandinavian Airlines

Deal found 18/8£294

Mon 6/1019:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Tue 14/1022:05IAD - DUB

1 stop15h 10mScandinavian Airlines

Deal found 18/8£295

Direct flights from Ireland to Dulles Intl
Explore direct flight options from Ireland to Dulles Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 19 August 2025.

Tue 16/916:35DUB - IAD

Nonstop7h 55mAer Lingus

Tue 30/917:20IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 18/8£327

Thu 23/1012:30DUB - IAD

Nonstop8h 05mLufthansa

Sun 26/1023:20IAD - DUB

Nonstop7h 00mLufthansa

Deal found 19/8£378

Fri 5/1212:05DUB - IAD

Nonstop8h 15mLufthansa

Mon 8/1222:20IAD - DUB

Nonstop7h 00mLufthansa

Deal found 18/8£397

Thu 4/908:50DUB - IAD

Nonstop8h 00mUnited Airlines

Wed 10/922:15IAD - DUB

Nonstop7h 05mUnited Airlines

Deal found 19/8£400

Tue 11/1112:05DUB - IAD

Nonstop8h 15mUnited Airlines

Sun 16/1122:20IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 18/8£460

Fri 19/912:50DUB - IAD

Nonstop8h 00mAer Lingus

Sat 27/917:20IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 18/8£461

Mon 3/1112:05DUB - IAD

Nonstop8h 15mUnited Airlines

Sun 16/1122:20IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 17/8£477

Sun 21/1212:05DUB - IAD

Nonstop8h 15mUnited Airlines

Tue 30/1222:20IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 19/8£480

Tue 28/1012:05DUB - IAD

Nonstop8h 15mUnited Airlines

Thu 13/1122:20IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 18/8£482

Sat 25/1008:50DUB - IAD

Nonstop8h 00mUnited Airlines

Wed 29/1023:20IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 19/8£482

Sun 26/1012:05DUB - IAD

Nonstop8h 15mLufthansa

Sun 9/1122:20IAD - DUB

Nonstop7h 00mLufthansa

Deal found 18/8£483

Last-minute flights from Ireland to Dulles Intl
Discover last-minute flight deals from Ireland to Dulles Intl. Data last updated 19 August 2025 and is based on user searches.

Wed 27/812:40DUB - IAD

1 stop12h 19mScandinavian Airlines

Mon 15/922:05IAD - DUB

2 stops31h 50mScandinavian Airlines

Deal found 18/8£328

Thu 28/812:40DUB - IAD

1 stop12h 19mScandinavian Airlines

Mon 15/922:05IAD - DUB

2 stops31h 50mScandinavian Airlines

Deal found 19/8£335

Tue 16/919:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Tue 30/922:05IAD - DUB

1 stop15h 10mScandinavian Airlines

Deal found 18/8£317

Tue 16/916:35DUB - IAD

Nonstop7h 55mAer Lingus

Tue 30/917:20IAD - DUB

Nonstop6h 50mAer Lingus

Deal found 18/8£327

Wed 17/919:05DUB - IAD

1 stop29h 54mScandinavian Airlines

Sat 27/922:05IAD - DUB

1 stop32h 45mScandinavian Airlines

Deal found 18/8£331

Thu 18/914:15DUB - IAD

1 stop10h 05mIcelandair

Mon 29/920:30IAD - DUB

1 stop11h 45mIcelandair

Deal found 18/8£307

Thu 18/912:20DUB - IAD

2 stops36h 39mScandinavian Airlines

Sun 28/922:05IAD - DUB

2 stops31h 50mScandinavian Airlines

Deal found 18/8£313

Thu 18/912:20DUB - IAD

2 stops36h 39mScandinavian Airlines

Sat 27/922:05IAD - DUB

1 stop32h 45mScandinavian Airlines

Deal found 18/8£321

Fri 19/911:45DUB - IAD

2 stops37h 14mScandinavian Airlines

Sun 28/922:05IAD - DUB

2 stops31h 50mScandinavian Airlines

Deal found 18/8£315

Fri 19/912:40DUB - IAD

1 stop12h 19mScandinavian Airlines

Mon 29/922:05IAD - DUB

2 stops31h 50mScandinavian Airlines

Deal found 18/8£323

One-way flights from Ireland to Dulles Intl
Search for one-way flight options from Ireland to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated 19 August 2025.

Fri 19/905:30DUB - IAD

1 stop14h 50mTAP AIR PORTUGAL

Deal found 19/8£270

Wed 29/1016:55DUB - IAD

1 stop27h 20mTAP AIR PORTUGAL

Deal found 17/8£287

Sun 2/1111:10DUB - IAD

1 stop33h 05mTAP AIR PORTUGAL

Deal found 17/8£292

Wed 3/910:45DUB - IAD

1 stop33h 35mTAP AIR PORTUGAL

Deal found 18/8£298

Wed 11/216:55DUB - IAD

1 stop27h 20mTAP AIR PORTUGAL

Deal found 18/8£338

Thu 4/1204:25DUB - IAD

1 stop21h 35mTAP AIR PORTUGAL

Deal found 18/8£339

Sun 21/1211:10DUB - IAD

1 stop33h 05mTAP AIR PORTUGAL

Deal found 17/8£352

Wed 11/212:15DUB - IAD

Nonstop8h 20mAer Lingus

Deal found 17/8£377

Sat 29/1111:30DUB - IAD

1 stop12h 00mIcelandair

Deal found 18/8£398

Sun 21/1216:20DUB - IAD

Nonstop8h 10mAer Lingus

Deal found 17/8£408

Mon 29/905:30DUB - IAD

1 stop14h 50mTAP AIR PORTUGAL

Deal found 17/8£409

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 2/10

12:40-19:59

1 stop12h 19m

Washington, D.C. Dulles Intl

Thu 9/10

22:05-11:30

2 stops56h 25m

£275

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 28/10

19:05-18:15

1 stop27h 10m

Washington, D.C. Dulles Intl

Thu 13/11

20:30-18:20

1 stop16h 50m

£290

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 13/12

10:10-18:50

1 stop13h 40m

Washington, D.C. Dulles Intl

Thu 8/1

20:30-09:25

1 stop31h 55m

£291

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 28/10

19:05-18:15

1 stop27h 10m

Washington, D.C. Dulles Intl

Sat 8/11

20:30-11:45

1 stop34h 15m

£291

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 28/10

19:05-18:15

1 stop27h 10m

Washington, D.C. Dulles Intl

Mon 10/11

20:30-11:45

1 stop34h 15m

£291

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 22/10

19:05-19:59

1 stop29h 54m

Washington, D.C. Dulles Intl

Sat 8/11

20:30-11:45

1 stop34h 15m

£294

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 13/10

19:05-19:59

1 stop29h 54m

Washington, D.C. Dulles Intl

Thu 23/10

22:05-09:25

1 stop30h 20m

£294

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 22/10

19:05-19:59

1 stop29h 54m

Washington, D.C. Dulles Intl

Mon 10/11

20:30-18:20

1 stop16h 50m

£294

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 6/10

19:05-19:59

1 stop29h 54m

Washington, D.C. Dulles Intl

Tue 14/10

22:05-18:15

1 stop15h 10m

£295

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 19/9

05:30-15:20

1 stop14h 50m

£270

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 18 results

Best time to book a flight from Ireland to Dulles Intl

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

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 Ireland to Washington, D.C. Dulles Intl Airport

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

Currently, January is the cheapest month in which you can book a flight from Ireland to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Ireland to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). 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 IE to IAD?

Unlike in the morning, when flights are generally more expensive, you can save up to 25% on flights from Ireland to Washington, D.C. Dulles Intl Airport by exploring options for tickets at midday.

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

The most flights from IE0 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 (13 on average).

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with United Airlines, Aer Lingus, andIcelandair from Ireland to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,922 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

United Airlines

7.4

Good

8,922 reviews

United Airlines

7.4

Good

8,922 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Apr 2025

TPE - SFO

Aer Lingus

7.2

Good

1,221 reviews

United Airlines

7.4

Good

8,922 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Apr 2025

TPE - SFO

Icelandair

7.0

Good

529 reviews

United Airlines

7.4

Good

8,922 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Apr 2025

TPE - SFO

Lufthansa

6.8

Okay

7,334 reviews

United Airlines

7.4

Good

8,922 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Apr 2025

TPE - SFO

British Airways

6.7

Okay

7,283 reviews

United Airlines

7.4

Good

8,922 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Thomas,Apr 2025

TPE - SFO

Related info for your journey

How long is the flight from Ireland to Washington, D.C. Dulles Intl Airport?
For as low as £275, Scandinavian Airlines can have you in Washington, D.C. Dulles Intl Airport from Ireland in 12h 19m. Airlines will cover a distance of 3393 mi.
What are the most reliable airlines from Ireland to Washington, D.C. Dulles Intl Airport?
Before booking your flight to Washington, D.C. Dulles Intl Airport from Ireland, check out the most reliable airlines to get you to your destination on time: Iberia (72%), American Airlines (69%), Aer Lingus( 69%).
What are the cheapest flights from Ireland to Washington, D.C. Dulles Intl Airport?
On average you can expect to pay £578 for a flight from Ireland to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is £384 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at £622.
Can I find deals for flights from Ireland to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Ireland to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ireland to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Dulles Intl.
Can I find deals for business class flights from Ireland to Dulles Intl?
Yes. Cheapflights offers flight deals from Ireland 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.
What is the cheapest month to book a flight from Ireland to Washington, D.C. Dulles Intl Airport?
Currently, January is the cheapest month in which you can book a flight from Ireland to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Ireland to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). 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.

See more FAQs

Silver Spring

Hanover

Oxon Hill

Woodbridge

Arlington

College Park

Laurel

Tysons

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Ireland to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£292	Average£328	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£305	Average£530	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£310	Average£500	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£318	Average£535	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£334	Average£424	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Ireland today with Cheapflights!

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ireland to Dulles Intl.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ireland to Dulles Intl, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dulles Intl from Ireland today and book when prices fit your budget.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Ireland to Washington, D.C. Dulles Intl Airport from £270

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 19/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ireland to Dulles Intl

Keep the following information in mind while searching for Ireland to Dulles Intl flight deals. Data was last updated 19 August 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals from Ireland to Dulles Intl

Cheapest flights from Ireland to Dulles IntlExplore the most affordable flight options available from Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Explore the most affordable flight options available from Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Ireland to Dulles Intl

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

Cheapflights Insights

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

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

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

Find hourly flight availability from Ireland to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 August 2025.

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

Explore weekly flight availability from Ireland to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 19 August 2025.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with United Airlines, Aer Lingus, andIcelandair from Ireland to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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

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

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

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

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

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Alternative routes for Ireland to Dulles Intl

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Top 5 airlines flying from Ireland to Dulles Intl

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Cheapest flights from Ireland to Dulles Intl
Explore the most affordable flight options available from Ireland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.