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

Sunday 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 14% of weekly flights between Dublin and Washington, D.C. have experienced delays in the past year, with the average delay time being 152 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 14% of flights being delayed.

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

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

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 12h 15m. There are 3393 mi between Dublin and Washington, D.C. Dulles Intl Airport.

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 $454 and $643, respectively. Icelandair is 29% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Dublin to Washington, D.C. Dulles Intl Airport one-way?

For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $337. Users have also found prices from $381 and $494 on Aer Lingus and American Airlines, respectively.

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 $459. On average you can expect to pay $1,062. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for $418.

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: SWISS (100%), Air Canada (94%), United Airlines( 94%).

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.

$397+ Flights from Dublin to Washington, D.C. Dulles Intl Airport

Q: How much does it cost to fly round-trip from Dublin to Washington, D.C. Dulles Intl Airport?

Airfare is below average for this route at the moment. Dublin to Washington, D.C. Dulles Intl Airport flights typically cost between $465 and $612 in January. The cheapest round-trip price found within the last 3 days was $397 on Icelandair (Jan 15-Jan 21).

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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”

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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

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 January 1, 2026.

Wed 12/315:55 amDUB - IAD

1 stop15h 10mMultiple Airlines

Tue 1/66:50 pmIAD - DUB

1 stop15h 55mMultiple Airlines

Deal found 12/30

$858

Wed 12/315:55 amDUB - IAD

1 stop15h 10mDelta

Tue 1/65:26 pmIAD - DUB

2 stops14h 14mDelta

Deal found 12/30

$873

Tue 12/305:15 pmDUB - IAD

1 stop27h 50mKLM

Sat 1/36:05 pmIAD - DUB

1 stop23h 05mKLM

Deal found 12/30

$982

Wed 12/315:15 pmDUB - IAD

1 stop27h 50mKLM

Sun 1/46:05 pmIAD - DUB

1 stop13h 35mKLM

Deal found 12/31

$1,043

Wed 12/317:45 pmDUB - IAD

1 stop29h 10mMultiple Airlines

Sun 1/45:05 pmIAD - DUB

Nonstop6h 50mMultiple Airlines

Deal found 12/31

$1,393

Tue 12/304:45 pmDUB - IAD

2 stops28h 20mMultiple Airlines

Sat 1/36:05 pmIAD - DUB

1 stop23h 05mMultiple Airlines

Deal found 12/30

$1,404

Wed 12/319:00 amDUB - IAD

2 stops17h 25mAir Canada

Tue 1/612:43 pmIAD - DUB

2 stops13h 27mAir Canada

Deal found 12/30

$1,782

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 January 1, 2026.

Sun 1/188:50 amDUB - IAD

1 stop12h 15mDelta

Sun 1/2512:23 pmIAD - DUB

2 stops14h 37mDelta

Deal found 12/30

$497

Sun 2/15:15 pmDUB - IAD

1 stop27h 50mMultiple Airlines

Sun 3/16:50 pmIAD - DUB

1 stop15h 55mMultiple Airlines

Deal found 12/30

$497

Wed 3/411:30 amDUB - IAD

2 stops34h 45mScandinavian Airlines

Wed 3/119:30 pmIAD - DUB

2 stops32h 30mScandinavian Airlines

Deal found 12/31

$498

Wed 3/48:50 amDUB - IAD

1 stop12h 15mDelta

Wed 3/1110:40 pmIAD - DUB

1 stop13h 05mDelta

Deal found 12/30

$497

Wed 3/48:50 amDUB - IAD

1 stop12h 15mMultiple Airlines

Wed 3/117:50 pmIAD - DUB

1 stop15h 55mMultiple Airlines

Deal found 12/31

$497

Thu 1/155:55 amDUB - IAD

1 stop15h 10mDelta

Thu 1/2212:23 pmIAD - DUB

2 stops14h 37mDelta

Deal found 12/30

$497

Fri 1/161:25 pmDUB - IAD

1 stop31h 40mMultiple Airlines

Thu 1/226:50 pmIAD - DUB

1 stop15h 55mMultiple Airlines

Deal found 12/31

$497

Mon 1/195:55 amDUB - IAD

1 stop15h 10mDelta

Tue 1/2712:23 pmIAD - DUB

2 stops22h 22mDelta

Deal found 12/30

$497

Wed 1/215:15 pmDUB - IAD

1 stop27h 50mMultiple Airlines

Wed 1/2812:23 pmIAD - DUB

2 stops14h 27mMultiple Airlines

Deal found 12/31

$502

Mon 2/28:50 amDUB - IAD

1 stop12h 15mDelta

Mon 2/912:23 pmIAD - DUB

2 stops14h 27mDelta

Deal found 12/30

$497

Sun 2/158:50 amDUB - IAD

1 stop12h 15mDelta

Sun 2/227:35 pmIAD - DUB

2 stops15h 10mDelta

Deal found 12/31

$501

Last-minute flights from Dublin to Dulles Intl
Discover last-minute flight deals from Dublin to Dulles Intl. Data last updated January 1, 2026 and is based on user searches.

Mon 1/1211:30 amDUB - IAD

1 stop12h 00mIcelandair

Mon 1/197:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 12/30

$418

Mon 1/1211:30 amDUB - IAD

1 stop12h 00mIcelandair

Tue 1/207:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 12/30

$422

Wed 1/144:25 amDUB - IAD

1 stop15h 50mTAP AIR PORTUGAL

Thu 1/225:30 pmIAD - DUB

1 stop24h 50mTAP AIR PORTUGAL

Deal found 12/29

$470

Thu 1/1511:30 amDUB - IAD

1 stop12h 00mIcelandair

Wed 1/217:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 12/30

$397

Thu 1/158:50 amDUB - IAD

1 stop12h 15mMultiple Airlines

Wed 1/2112:23 pmIAD - DUB

2 stops14h 27mMultiple Airlines

Deal found 12/30

$490

Fri 1/164:55 pmDUB - IAD

1 stop27h 20mTAP AIR PORTUGAL

Thu 1/225:30 pmIAD - DUB

1 stop24h 50mTAP AIR PORTUGAL

Deal found 12/31

$460

Sat 1/1711:30 amDUB - IAD

1 stop12h 00mIcelandair

Fri 1/237:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 12/31

$419

Wed 1/2111:30 amDUB - IAD

1 stop12h 00mIcelandair

Wed 1/287:40 pmIAD - DUB

1 stop9h 35mIcelandair

Deal found 12/31

$429

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 January 1, 2026.

Fri 1/234:25 amDUB - IAD

1 stop15h 50mTAP AIR PORTUGAL

Deal found 12/29

$446

Sat 5/910:45 amDUB - IAD

1 stop33h 20mTAP AIR PORTUGAL

Deal found 12/30

$450

Mon 4/69:25 pmDUB - IAD

2 stops23h 05mMultiple Airlines

Deal found 12/30

$451

Mon 1/127:00 pmDUB - IAD

3 stops55h 00mMultiple Airlines

Deal found 12/31

$456

Wed 5/204:25 pmDUB - IAD

3 stops27h 40mMultiple Airlines

Deal found 12/29

$457

Fri 5/157:55 amDUB - IAD

3 stops41h 10mMultiple Airlines

Deal found 12/31

$459

Mon 1/125:05 pmDUB - IAD

1 stop26h 30mTAP AIR PORTUGAL

Deal found 12/31

$460

Tue 1/134:55 pmDUB - IAD

1 stop33h 05mTAP AIR PORTUGAL

Deal found 12/30

$461

Wed 2/114:55 pmDUB - IAD

1 stop27h 20mTAP AIR PORTUGAL

Deal found 12/30

$462

Tue 1/1312:15 pmDUB - IAD

Nonstop8h 20mAer Lingus

Deal found 12/30

$464

Tue 1/136:10 pmDUB - IAD

2 stops31h 50mMultiple Airlines

Deal found 12/30

$468

Find flight deals from Dublin to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$397 (Travelis)
Popular in	August
Cheapest in	January
Average price	$469
Good round-trip deal	$678 or less
Good one-way deal	$520 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. 13% potential increase in price ($97 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 January 2026

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

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

Sun 1/18

8:50 am-4:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Sun 1/25

12:23 pm-8:00 am

2 stops14h 37m

$497

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sun 2/1

5:15 pm-4:05 pm

1 stop27h 50m

Washington, D.C. Dulles Intl

Sun 3/1

6:50 pm-3:45 pm

1 stop15h 55m

$497

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

10:40 pm-3:45 pm

1 stop13h 05m

$497

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

$497

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-8:00 am

2 stops14h 37m

$497

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 1/16

1:25 pm-4:05 pm

1 stop31h 40m

Washington, D.C. Dulles Intl

Thu 1/22

6:50 pm-3:45 pm

1 stop15h 55m

$497

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 1/19

5:55 am-4:05 pm

1 stop15h 10m

Washington, D.C. Dulles Intl

Tue 1/27

12:23 pm-3:45 pm

2 stops22h 22m

$497

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 2/2

8:50 am-4:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Mon 2/9

12:23 pm-7:50 am

2 stops14h 27m

$497

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 3/4

11:30 am-5:15 pm

2 stops34h 45m

Washington, D.C. Dulles Intl

Wed 3/11

9:30 pm-10:00 am

2 stops32h 30m

$498

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sun 2/15

8:50 am-4:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Sun 2/22

7:35 pm-3:45 pm

2 stops15h 10m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 22 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 January.

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 $598). 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?

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

How much does it cost to fly round-trip from Dublin to Washington, D.C. Dulles Intl Airport?

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

9,126 reviews

Reviews

1 / 20

10.0

Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

United Airlines

7.4

Good

9,126 reviews

United Airlines

7.4

Good

9,126 reviews

Reviews

1 / 20

10.0

Excellent

Michelle,Dec 2025

DEN - MKE

Aer Lingus

7.2

Good

1,418 reviews

United Airlines

7.4

Good

9,126 reviews

Reviews

1 / 20

10.0

Excellent

Michelle,Dec 2025

DEN - MKE

Icelandair

7.1

Good

593 reviews

United Airlines

7.4

Good

9,126 reviews

Reviews

1 / 20

10.0

Excellent

Michelle,Dec 2025

DEN - MKE

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 12h 15m. There are 3393 mi between Dublin and Washington, D.C. Dulles Intl Airport.
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 $454 and $643, respectively. Icelandair is 29% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Dublin to Washington, D.C. Dulles Intl Airport one-way?
For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $337. Users have also found prices from $381 and $494 on Aer Lingus and American Airlines, respectively.
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: SWISS (100%), Air Canada (94%), United Airlines( 94%).
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 $459. On average you can expect to pay $1,062. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for $418.
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 $598). 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

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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$454	Average$604	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$643	Average$808	FlexibilityNo cancel fee	On-time69%

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$397+ 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 1/15. 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

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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

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 January 1, 2026.

Explore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

Find flight deals from Dublin to Dulles Intl

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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.

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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.

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

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

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

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

How much does it cost to fly round-trip from Dublin to Washington, D.C. Dulles Intl Airport?

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

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

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

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

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

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

AI-powered summary based on content written by travel experts. AI can make mistakes.

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 cheapest airlines to fly from Dublin to Washington, D.C. Dulles Intl Airport one-way?

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?

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Top 3 airlines flying from Dublin to Dulles Intl

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Cheapest flights from Dublin to Dulles Intl
Explore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.