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

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

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

Monday 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.

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

About 15% of weekly flights between Dublin and Washington, D.C. have experienced delays in the past year, with the average delay time being 151 minutes.

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

Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 15% of flights being delayed.

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

Departing from Dublin to Washington, D.C. Dulles Intl Airport will take you 11h 45m. There are 3393 mi between Dublin and Washington, D.C. Dulles Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

Currently priced at $425, Icelandair will fly you from Dublin to Washington, D.C. Dulles Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Aer Lingus and United Airlines - these airlines can fly you to your destination from $445 and $643, respectively. Icelandair is 28% cheaper than the average price of flights available within the next 90 days to this destination.

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

The most flights from DUB to IAD are scheduled on a Monday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (12 on average).

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

The cheapest flight price from Dublin to Washington, D.C. Dulles Intl Airport is $443. On average you can expect to pay $632. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for $383.

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

Before booking your flight to Washington, D.C. Dulles Intl Airport from Dublin, check out the most reliable airlines to get you to your destination on time: Air Canada (91%), United Airlines (91%), Lufthansa( 89%).

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

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

Most accurate provider : When it comes to deals on Dublin-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dublin-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Dublin-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Dublin-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Dublin-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Dublin (DUB) is the airport you will fly out of if you book a flight from Dublin to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Dublin; the airport handles an average of 12 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Dublin airport to Washington, D.C. Dulles Intl. It is only a 5.7 mi journey to Dublin (DUB) from Dublin’s city center.

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

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

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

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.

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

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.

$392+ Flights from Dublin to Washington, D.C. Dulles Intl Airport

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Dublin to Dulles Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Dublin to Washington, D.C. Dulles Intl are usually found in January or November, booked 37 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Dublin to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$391 (Mytrip)
Popular in	August
Cheapest in	January
Average price	$619
Good round-trip deal	$603 or less
Good one-way deal	$483 or less

Provider with most accurate pricing for Dublin-Washington, D.C. Dulles Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Dublin-Washington, D.C. Dulles Intl flights.

Search Deals

From Dublin to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($99 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

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

Search Deals

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

Search Deals

Find flight deals from Dublin to Dulles Intl

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 December 1, 2025.

Wed 12/2411:30 amDUB - IAD

1 stop12h 00mIcelandair

Wed 1/77:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 12/1

$392

Thu 12/1111:30 amDUB - IAD

1 stop12h 00mIcelandair

Thu 1/87:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 11/29

$463

Thu 12/118:40 pmDUB - IAD

1 stop23h 55mBritish Airways

Thu 1/89:45 pmIAD - DUB

1 stop12h 05mBritish Airways

Deal found 12/1

$548

Sun 12/218:45 amDUB - IAD

1 stop11h 50mBritish Airways

Sun 1/116:20 pmIAD - DUB

1 stop12h 55mBritish Airways

Deal found 11/30

$559

Wed 12/179:45 amDUB - IAD

1 stop13h 36mKLM

Sat 1/107:49 pmIAD - DUB

1 stop31h 56mKLM

Deal found 11/30

$625

Fri 12/2612:15 pmDUB - IAD

Nonstop8h 20mAer Lingus

Fri 1/29:00 pmIAD - DUB

Nonstop6h 50mAer Lingus

Deal found 11/29

$628

Wed 12/178:45 amDUB - IAD

1 stop15h 45mDelta

Sat 1/1012:23 pmIAD - DUB

2 stops14h 42mDelta

Deal found 11/30

$631

Thu 12/118:50 amDUB - IAD

1 stop12h 15mDelta

Thu 1/812:23 pmIAD - DUB

2 stops22h 22mDelta

Deal found 11/30

$636

Wed 12/34:25 amDUB - IAD

1 stop15h 50mTAP AIR PORTUGAL

Tue 12/95:30 pmIAD - DUB

1 stop24h 50mTAP AIR PORTUGAL

Deal found 12/1

$647

Thu 12/1112:05 pmDUB - IAD

Nonstop8h 15mUnited Airlines

Thu 1/81:05 pmIAD - DUB

1 stop14h 05mUnited Airlines

Deal found 11/29

$648

Best flights from Dublin to Dulles Intl
Discover carefully curated flight deals from Dublin to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 1, 2025.

Tue 5/1212:40 pmDUB - IAD

1 stop33h 10mScandinavian Airlines

Fri 5/228:20 pmIAD - DUB

1 stop32h 05mScandinavian Airlines

Deal found 11/29

$414

Thu 1/88:50 amDUB - IAD

1 stop11h 45mBritish Airways

Wed 1/149:45 pmIAD - DUB

1 stop14h 15mBritish Airways

Deal found 11/28

$438

Thu 2/51:10 pmDUB - IAD

1 stop11h 45mMultiple Airlines

Sun 2/89:45 pmIAD - DUB

1 stop12h 20mMultiple Airlines

Deal found 12/1

$438

Thu 1/81:10 pmDUB - IAD

1 stop11h 45mAmerican Airlines

Wed 1/1411:34 amIAD - DUB

2 stops16h 06mAmerican Airlines

Deal found 11/29

$454

Thu 2/128:50 amDUB - IAD

1 stop12h 15mDelta

Sun 2/156:50 pmIAD - DUB

1 stop15h 55mDelta

Deal found 12/1

$457

Fri 5/17:05 pmDUB - IAD

1 stop26h 45mScandinavian Airlines

Fri 5/158:20 pmIAD - DUB

1 stop32h 05mScandinavian Airlines

Deal found 12/1

$415

Wed 3/48:50 amDUB - IAD

1 stop12h 15mMultiple Airlines

Wed 3/117:50 pmIAD - DUB

1 stop15h 55mMultiple Airlines

Deal found 11/30

$456

Thu 1/228:50 amDUB - IAD

1 stop12h 15mDelta

Sun 1/2512:23 pmIAD - DUB

2 stops14h 27mDelta

Deal found 11/30

$457

Thu 1/155:55 amDUB - IAD

1 stop15h 10mDelta

Thu 1/2212:23 pmIAD - DUB

2 stops14h 27mDelta

Deal found 12/1

$457

Wed 4/2211:40 amDUB - IAD

2 stops34h 10mScandinavian Airlines

Sat 5/28:20 pmIAD - DUB

1 stop17h 00mScandinavian Airlines

Deal found 11/30

$458

Fri 1/305:15 pmDUB - IAD

1 stop27h 50mMultiple Airlines

Sun 2/16:50 pmIAD - DUB

1 stop23h 05mMultiple Airlines

Deal found 12/1

$459

Last-minute flights from Dublin to Dulles Intl
Discover last-minute flight deals from Dublin to Dulles Intl. Data last updated December 1, 2025 and is based on user searches.

Sat 12/66:35 pmDUB - IAD

1 stop27h 05mSWISS

Sat 1/38:30 pmIAD - DUB

1 stop16h 15mSWISS

Deal found 11/29

$5,692

Thu 12/1111:30 amDUB - IAD

1 stop12h 00mIcelandair

Thu 1/87:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 11/29

$463

Thu 12/118:40 pmDUB - IAD

1 stop28h 15mBritish Airways

Thu 1/89:45 pmIAD - DUB

1 stop14h 40mBritish Airways

Deal found 11/30

$548

Thu 12/118:50 amDUB - IAD

1 stop12h 15mDelta

Thu 1/812:23 pmIAD - DUB

2 stops22h 22mDelta

Deal found 11/30

$636

Thu 12/1112:05 pmDUB - IAD

Nonstop8h 15mUnited Airlines

Thu 1/81:05 pmIAD - DUB

1 stop14h 05mUnited Airlines

Deal found 11/29

$648

Thu 12/114:20 pmDUB - IAD

Nonstop8h 10mIberia

Thu 1/85:05 pmIAD - DUB

Nonstop6h 50mIberia

Deal found 11/29

$693

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 December 1, 2025.

Sun 12/712:15 pmDUB - IAD

Nonstop8h 20mAer Lingus

Deal found 11/30

$446

Wed 2/1110:20 amDUB - IAD

1 stop14h 35mMultiple Airlines

Deal found 11/30

$450

Tue 12/167:05 amDUB - IAD

2 stops42h 55mMultiple Airlines

Deal found 12/1

$455

Mon 12/811:10 amDUB - IAD

1 stop32h 25mTAP AIR PORTUGAL

Deal found 11/30

$463

Thu 1/1511:30 amDUB - IAD

1 stop12h 00mIcelandair

Deal found 11/30

$470

Sat 12/64:15 amDUB - IAD

3 stops42h 10mMultiple Airlines

Deal found 11/30

$542

Fri 1/94:25 amDUB - IAD

1 stop15h 50mTAP AIR PORTUGAL

Deal found 11/29

$547

Wed 1/144:25 amDUB - IAD

2 stops21h 01mMultiple Airlines

Deal found 11/30

$554

Mon 12/85:45 amDUB - IAD

2 stops17h 45mMultiple Airlines

Deal found 11/30

$560

Wed 2/1112:15 pmDUB - IAD

Nonstop8h 20mIberia

Deal found 11/29

$566

Tue 12/164:55 pmDUB - IAD

1 stop33h 05mTAP AIR PORTUGAL

Deal found 12/1

$570

Cheapflights Fare Finder

Use the filters below to find and compare flights from Dublin 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

Tue 5/12

12:40 pm-4:50 pm

1 stop33h 10m

Washington, D.C. Dulles Intl

Fri 5/22

8:20 pm-9:25 am

1 stop32h 05m

$414

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 5/1

7:05 pm-4:50 pm

1 stop26h 45m

Washington, D.C. Dulles Intl

Fri 5/15

8:20 pm-9:25 am

1 stop32h 05m

$415

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 1/8

8:50 am-3:35 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Wed 1/14

9:45 pm-5:00 pm

1 stop14h 15m

$438

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 2/5

1:10 pm-7:55 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Sun 2/8

9:45 pm-3:05 pm

1 stop12h 20m

$438

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 1/8

1:10 pm-7:55 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Wed 1/14

11:34 am-8:40 am

2 stops16h 06m

$454

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 3/4

8:50 am-4:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Wed 3/11

7:50 pm-3:45 pm

1 stop15h 55m

$456

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 2/12

8:50 am-4:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Sun 2/15

6:50 pm-3:45 pm

1 stop15h 55m

$457

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 1/22

8:50 am-4:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Sun 1/25

12:23 pm-7:50 am

2 stops14h 27m

$457

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 1/15

5:55 am-4:05 pm

1 stop15h 10m

Washington, D.C. Dulles Intl

Thu 1/22

12:23 pm-7:50 am

2 stops14h 27m

$457

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 4/22

11:40 am-4:50 pm

2 stops34h 10m

Washington, D.C. Dulles Intl

Sat 5/2

8:20 pm-6:20 pm

1 stop17h 00m

$458

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

Showing 1-10 of 19 results

Compare providers for flights from Dublin to Dulles Intl

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dublin to Dulles Intl in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Cheapflightsfares	Price Accuracy3 stars	Trust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Dublin-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dublin-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Dublin-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Dublin-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Dublin-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dublin to Dulles Intl

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

Estimated round-trip 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 Dublin to Washington, D.C. Dulles Intl Airport

Prices

Airlines

Delays

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

The price you pay for your flight from Dublin to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 36 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 Dublin to Washington, D.C. Dulles Intl Airport?

Currently, December is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of $366). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $599). 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 DUB to IAD?

It’s typically best to fly out from Dublin to Washington, D.C. Dulles Intl Airport in the evening. Doing so could potentially save you 29% on the flight price compared to flying in the morning, which is usually more expensive.

The best insider tips for Dublin to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Dublin to Washington, D.C. Dulles Intl Airport trip

Airlines

Aer Lingus

Pre-clear US immigration in Dublin, saving time upon arrival in the US.

Enjoy a complimentary hot meal and drinks on transatlantic flights.

United Airlines

Polaris passengers access exclusive lounges with showers and dining at IAD.

Premium Plus offers extra legroom and upgraded meals on international flights.

Airports

DUB

For US travelers, preclearance at DUB can be time-consuming. Allow 30-45 minutes after security to complete this process.

IAD

The Washington Metro Silver line reaches IAD in under 40 minutes, offering a cheap city transit option.

Our travel experts

Evie Carrick

Expert on Aer Lingus

Harriet Baskas

Expert on United Airlines

James March

Expert on DUB

Ramsey Qubein

Expert on IAD

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Dublin to Washington, D.C. Dulles Intl Airport, such as United Airlines, Aer Lingus, and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,057 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

United Airlines

7.4

Good

9,057 reviews

United Airlines

7.4

Good

9,057 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Aer Lingus

7.2

Good

1,384 reviews

United Airlines

7.4

Good

9,057 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Icelandair

7.0

Good

584 reviews

United Airlines

7.4

Good

9,057 reviews

Reviews

1 / 20

2.0

Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

What airport do you fly from for flights from Dublin to Washington, D.C. Dulles Intl?
Dublin (DUB) is the airport you will fly out of if you book a flight from Dublin to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Dublin; the airport handles an average of 12 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Dublin airport to Washington, D.C. Dulles Intl. It is only a 5.7 mi journey to Dublin (DUB) from Dublin’s city center.
How long is the flight from Dublin to Washington, D.C. Dulles Intl Airport?
Departing from Dublin to Washington, D.C. Dulles Intl Airport will take you 11h 45m. There are 3393 mi between Dublin and Washington, D.C. Dulles Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Dublin to Washington, D.C. Dulles Intl Airport round-trip?
Currently priced at $425, Icelandair will fly you from Dublin to Washington, D.C. Dulles Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Aer Lingus and United Airlines - these airlines can fly you to your destination from $445 and $643, respectively. Icelandair is 28% cheaper than the average price of flights available within the next 90 days to this destination.
What are the most reliable airlines from Dublin to Washington, D.C. Dulles Intl Airport?
Before booking your flight to Washington, D.C. Dulles Intl Airport from Dublin, check out the most reliable airlines to get you to your destination on time: Air Canada (91%), United Airlines (91%), Lufthansa( 89%).
What are the cheapest flights from Dublin to Washington, D.C. Dulles Intl Airport?
The cheapest flight price from Dublin to Washington, D.C. Dulles Intl Airport is $443. On average you can expect to pay $632. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for $383.
Can I find deals for flights from Dublin to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Dublin to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dublin to Dulles Intl?
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.
Can I find deals for business class flights from Dublin to Dulles Intl?
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.
What is the cheapest month to book a flight from Dublin to Washington, D.C. Dulles Intl Airport?
Currently, December is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of $366). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $599). 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

Alexandria

Woodbridge

Tysons

Arlington

Owings Mills

Springfield

Hanover

Silver Spring

Fredericksburg

Fairfax

Linthicum Heights

Manassas

Laurel

Towson

National Harbor

Bowie

Largo

McLean

Clinton

Upper Marlboro

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Dublin to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$425	Average$603	FlexibilityNo cancel fee	On-time76%
Aer Lingus	Cheapest$445	Average$599	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$643	Average$808	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

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.

$392+ Cheap flights from Dublin (DUB) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dublin to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Dublin to Washington, D.C. Dulles Intl are usually found in January or November, booked 37 days in advance, depart on a Monday or Wednesday and return on a Tuesday

Cheap flight deals from Dublin to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find 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 December 1, 2025.

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 December 1, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Dublin to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dublin to Dulles Intl in December.

Best time to book a flight from Dublin to Dulles Intl

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

Cheapflights Insights

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?

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?

The best insider tips for Dublin to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Dublin to Washington, D.C. Dulles Intl Airport trip

Airlines

Aer Lingus

United Airlines

Airports

DUB

IAD

Our travel experts

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Dublin to Washington, D.C. Dulles Intl Airport, such as United Airlines, Aer Lingus, and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dublin to Dulles Intl

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

Top 3 airlines flying from Dublin to Dulles Intl

100% Free

Book with Flexibility

Travel Smart

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 December 1, 2025.