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. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

On average you can expect to pay £621 for a flight from Ireland to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is £385 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at £526.

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: SWISS (100%), Air Canada (86%), United Airlines( 86%).

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 Tuesday, 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 98% on this flight, we recommend booking at least 53 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 £404 1-2 weeks out and tickets from £606 for flights departing within the next 72 hours.

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

February is one of the best times of the year to fly to Washington, D.C. Dulles Intl Airport from Ireland. Prices for February average £447 per person but you can even find prices for as low as £207. The most expensive prices can be found in the month of July. Opting for a February flight can save you 55% on your journey compared to booking in July

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.

£481+ Flights from Ireland to Washington, D.C. Dulles Intl Airport

Cheap flight deals from Ireland to Dulles Intl

Round-trip from	£272
Good round-trip deal	£503 or less

Icelandair
12/3-17/3
2 total stops
21h 30m total
Ireland to Washington, D.C.

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 22 January 2025.

Wed 12/311:30DUB - IAD

1 stop11h 55mIcelandair

Mon 17/320:40IAD - DUB

1 stop9h 35mIcelandair

Deal found 21/1£272

Fri 7/311:15DUB - IAD

2 stops33h 25mScandinavian Airlines

Sun 16/318:10IAD - DUB

1 stop13h 30mScandinavian Airlines

Deal found 21/1£317

Mon 17/208:50DUB - IAD

1 stop11h 55mDelta

Mon 24/212:29IAD - DUB

2 stops22h 11mDelta

Deal found 20/1£324

Fri 7/308:30DUB - IAD

1 stop16h 50mLufthansa

Sun 16/323:05IAD - DUB

Nonstop7h 00mLufthansa

Deal found 21/1£354

Thu 30/117:25DUB - IAD

1 stop27h 20mMultiple Airlines

Wed 5/218:30IAD - DUB

1 stop16h 10mMultiple Airlines

Deal found 21/1£358

Sat 12/420:10DUB - IAD

1 stop29h 05mBritish Airways

Sat 26/422:45IAD - DUB

1 stop15h 40mBritish Airways

Deal found 21/1£451

Mon 3/312:30DUB - IAD

Nonstop8h 10mAer Lingus

Wed 12/322:55IAD - DUB

1 stop10h 40mAer Lingus

Deal found 21/1£466

Thu 13/311:50DUB - IAD

Nonstop8h 20mUnited Airlines

Wed 19/323:05IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 21/1£474

Thu 6/304:25DUB - IAD

1 stop21h 35mTAP AIR PORTUGAL

Sun 16/323:30IAD - DUB

1 stop12h 40mTAP AIR PORTUGAL

Deal found 21/1£486

Thu 6/318:40DUB - IAD

1 stop25h 50mSWISS

Thu 13/321:45IAD - DUB

1 stop16h 05mSWISS

Deal found 21/1£515

Thu 30/116:50DUB - IAD

1 stop23h 45mTurkish Airlines

Wed 5/221:25IAD - DUB

1 stop35h 15mTurkish Airlines

Deal found 21/1£539

Sat 15/312:15DUB - IAD

2 stops31h 20mAustrian Airlines

Sat 22/317:45IAD - DUB

2 stops33h 15mAustrian Airlines

Deal found 21/1£552

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 22 January 2025.

Wed 12/311:30DUB - IAD

1 stop11h 55mIcelandair

Mon 17/320:40IAD - DUB

1 stop9h 35mIcelandair

Deal found 21/1£272

Fri 7/311:15DUB - IAD

2 stops33h 25mScandinavian Airlines

Sun 16/318:10IAD - DUB

1 stop13h 30mScandinavian Airlines

Deal found 21/1£317

Mon 17/208:50DUB - IAD

1 stop11h 55mDelta

Mon 24/212:29IAD - DUB

2 stops22h 11mDelta

Deal found 20/1£324

Fri 7/308:30DUB - IAD

1 stop16h 50mLufthansa

Sun 16/323:05IAD - DUB

Nonstop7h 00mLufthansa

Deal found 21/1£354

Sat 12/420:10DUB - IAD

1 stop29h 05mBritish Airways

Sat 26/422:45IAD - DUB

1 stop15h 40mBritish Airways

Deal found 21/1£451

Mon 3/312:30DUB - IAD

Nonstop8h 10mAer Lingus

Wed 12/322:55IAD - DUB

1 stop10h 40mAer Lingus

Deal found 21/1£466

Thu 13/311:50DUB - IAD

Nonstop8h 20mUnited Airlines

Wed 19/323:05IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 21/1£474

Mon 3/212:30DUB - IAD

Nonstop8h 10mMultiple Airlines

Mon 10/206:05IAD - DUB

1 stop18h 00mMultiple Airlines

Deal found 20/1£476

Thu 6/304:25DUB - IAD

1 stop21h 35mTAP AIR PORTUGAL

Sun 16/323:30IAD - DUB

1 stop12h 40mTAP AIR PORTUGAL

Deal found 21/1£486

Thu 6/318:40DUB - IAD

1 stop25h 50mSWISS

Thu 13/321:45IAD - DUB

1 stop16h 05mSWISS

Deal found 21/1£515

Sat 15/312:15DUB - IAD

2 stops31h 20mAustrian Airlines

Sat 22/317:45IAD - DUB

2 stops33h 15mAustrian Airlines

Deal found 21/1£552

Fri 6/611:00DUB - IAD

1 stop11h 30mAmerican Airlines

Wed 11/619:25IAD - DUB

1 stop13h 00mAmerican Airlines

Deal found 21/1£1,055

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 22 January 2025.

Fri 7/311:50DUB - IAD

Nonstop8h 20mLufthansa

Sun 16/323:05IAD - DUB

Nonstop7h 00mLufthansa

Deal found 21/1£358

Thu 13/311:50DUB - IAD

Nonstop8h 20mUnited Airlines

Wed 19/323:05IAD - DUB

Nonstop7h 00mUnited Airlines

Deal found 21/1£474

Tue 11/212:30DUB - IAD

Nonstop8h 10mAer Lingus

Sun 16/217:10IAD - DUB

Nonstop6h 45mAer Lingus

Deal found 21/1£500

Last-minute flights from Ireland to Dulles Intl
Discover last-minute flight deals from Ireland to Dulles Intl. Data last updated 22 January 2025 and is based on user searches.

Wed 22/109:00DUB - IAD

1 stop17h 21mUnited Airlines

Sat 25/112:35IAD - DUB

2 stops13h 35mUnited Airlines

Deal found 21/1£569

Wed 29/104:25DUB - IAD

2 stops20h 55mTAP AIR PORTUGAL

Wed 5/222:30IAD - DUB

1 stop19h 50mTAP AIR PORTUGAL

Deal found 21/1£634

Thu 30/117:25DUB - IAD

1 stop27h 20mMultiple Airlines

Wed 5/218:30IAD - DUB

1 stop16h 10mMultiple Airlines

Deal found 21/1£358

Thu 30/108:55DUB - IAD

1 stop12h 20mDelta

Sun 2/212:05IAD - DUB

2 stops15h 00mDelta

Deal found 21/1£362

Thu 30/111:15DUB - IAD

2 stops33h 25mScandinavian Airlines

Wed 5/217:10IAD - DUB

1 stop13h 30mScandinavian Airlines

Deal found 21/1£467

Thu 30/116:50DUB - IAD

1 stop23h 45mTurkish Airlines

Wed 5/221:25IAD - DUB

1 stop35h 15mTurkish Airlines

Deal found 21/1£539

Tue 11/212:30DUB - IAD

Nonstop8h 10mAer Lingus

Sun 16/218:00IAD - DUB

1 stop12h 15mAer Lingus

Deal found 21/1£466

Mon 17/208:50DUB - IAD

1 stop11h 55mDelta

Mon 24/212:29IAD - DUB

2 stops22h 11mDelta

Deal found 20/1£324

Find flights from Ireland to Dulles Intl within your budget

Fly from

Fly to

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 12/3

11:30-19:25

1 stop11h 55m

Washington, D.C. Dulles Intl

Mon 17/3

20:40-10:15

1 stop9h 35m

£272

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 7/3

11:15-15:40

2 stops33h 25m

Washington, D.C. Dulles Intl

Sun 16/3

18:10-11:40

1 stop13h 30m

£317

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 17/2

08:50-15:45

1 stop11h 55m

Washington, D.C. Dulles Intl

Mon 24/2

12:29-15:40

2 stops22h 11m

£324

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 7/3

08:30-20:20

1 stop16h 50m

Washington, D.C. Dulles Intl

Sun 16/3

23:05-10:05

Nonstop7h 00m

£354

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 12/4

20:10-20:15

1 stop29h 05m

Washington, D.C. Dulles Intl

Sat 26/4

22:45-19:25

1 stop15h 40m

£451

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 3/3

12:30-15:40

Nonstop8h 10m

Washington, D.C. Dulles Intl

Wed 12/3

22:55-13:35

1 stop10h 40m

£466

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 13/3

11:50-16:10

Nonstop8h 20m

Washington, D.C. Dulles Intl

Wed 19/3

23:05-10:05

Nonstop7h 00m

£474

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 3/2

12:30-15:40

Nonstop8h 10m

Washington, D.C. Dulles Intl

Mon 10/2

06:05-05:05

1 stop18h 00m

£476

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 6/3

04:25-21:00

1 stop21h 35m

Washington, D.C. Dulles Intl

Sun 16/3

23:30-16:10

1 stop12h 40m

£486

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 6/3

18:40-15:30

1 stop25h 50m

Washington, D.C. Dulles Intl

Thu 13/3

21:45-17:50

1 stop16h 05m

£515

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 14 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.

Travel insights for flights from Ireland to Dulles Intl

Get recent, data-driven insights about flights from Ireland to Dulles Intl including ideal travel times, pricing trends, and more.

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 £944). 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 20% 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 (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Dulles Intl by month

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.

Temperature in Dulles Intl by month

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).

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Ireland to Washington, D.C., such as TAP AIR PORTUGAL, Delta and Scandinavian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

8,521 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines

7.5

Good

787 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,600 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,984 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Scandinavian Airlines

7.3

Good

1,320 reviews

Delta

8.0

Very Good

8,521 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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: SWISS (100%), Air Canada (86%), United Airlines( 86%).
What are the cheapest flights from Ireland to Washington, D.C. Dulles Intl Airport?
On average you can expect to pay £621 for a flight from Ireland to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is £385 while the most popular route, (Dublin - Washington, D.C. Dulles Intl) is currently priced at £526.
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 £944). 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

Arlington

Woodbridge

College Park

Laurel

Tysons

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Ireland to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest£218	Average£395	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Aer Lingus	Cheapest£318	Average£423	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Icelandair	Cheapest£322	Average£353	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£336	Average£457	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Lufthansa	Cheapest£463	Average£573	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£494	Average£638	FlexibilityNo cancel fee	On-time69%	Search United Airlines 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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Cheap flights from Ireland to Washington, D.C. Dulles Intl Airport from £272

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. 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

Round-trip from

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 22 January 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 22 January 2025.

Find flights from Ireland to Dulles Intl within your budget

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.

Travel insights for flights from Ireland to Dulles Intl

Get recent, data-driven insights about flights from Ireland to Dulles Intl including ideal travel times, pricing trends, and more.

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 22 January 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 22 January 2025.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

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.

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?

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

Travelling to a place near Ireland?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ireland to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Ireland to Dulles Intl

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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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 22 January 2025.