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Cheap flights from Dublin to Washington, D.C. Dulles Intl Airport from £317

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — IAD
26 Feb — 5 Mar1
1 adult

The best prices from Dublin to Washington, D.C. Dulles Intl are usually found in January or November, booked 67 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap flight deals from Dublin to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 February 2025.

Round-trip from

£317

Popular in

July

Cheapest in

January

Average price

£405

Good round-trip deal

£481 or less

Good one-way deal

£373 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 3/4-7/4
  • 3 total stops
  • 69h 24m total
  • Dublin to Washington, D.C.
Highest demand for flights based on searches. 19% potential increase in price (£88 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from Dublin to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Dublin to Washington, D.C. Dulles Intl.

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 21 February 2025.

Thu 3/412:20DUB - IAD
2 stops36h 39mScandinavian Airlines
Mon 7/422:05IAD - DUB
1 stop32h 45mScandinavian Airlines
Deal found 20/2£317
Mon 10/1111:30DUB - IAD
1 stop11h 50mIcelandair
Fri 14/1119:40IAD - DUB
1 stop9h 35mIcelandair
Deal found 20/2£318
Thu 27/208:55DUB - IAD
1 stop12h 40mDelta
Wed 5/318:30IAD - DUB
1 stop13h 35mDelta
Deal found 20/2£395
Sat 15/312:30DUB - IAD
Nonstop8h 10mAer Lingus
Sun 1/620:25IAD - DUB
Nonstop6h 50mAer Lingus
Deal found 20/2£414
Sat 12/420:10DUB - IAD
2 stops23h 50mMultiple Airlines
Fri 25/422:40IAD - DUB
1 stop15h 40mMultiple Airlines
Deal found 20/2£416
Sat 12/420:10DUB - IAD
1 stop29h 05mBritish Airways
Sat 26/422:45IAD - DUB
1 stop12h 55mBritish Airways
Deal found 20/2£418
Thu 27/208:30DUB - IAD
1 stop16h 50mLufthansa
Wed 5/322:05IAD - DUB
Nonstop7h 00mLufthansa
Deal found 20/2£444
Sun 2/309:00DUB - IAD
2 stops19h 57mUnited Airlines
Sat 8/312:55IAD - DUB
2 stops36h 15mUnited Airlines
Deal found 20/2£446
Fri 4/409:20DUB - IAD
2 stops34h 06mAustrian Airlines
Mon 7/417:40IAD - DUB
2 stops32h 40mAustrian Airlines
Deal found 20/2£496
Sat 15/316:10DUB - IAD
Nonstop8h 05mAmerican Airlines
Sat 31/520:25IAD - DUB
Nonstop6h 50mAmerican Airlines
Deal found 20/2£514
Mon 14/418:50DUB - IAD
1 stop25h 30mTAP AIR PORTUGAL
Wed 16/422:20IAD - DUB
1 stop14h 45mTAP AIR PORTUGAL
Deal found 20/2£559
Fri 28/218:40DUB - IAD
1 stop26h 45mSWISS
Fri 14/318:50IAD - DUB
2 stops33h 40mSWISS
Deal found 20/2£597

Find flights from Dublin to Dulles Intl within your budget

Customise your flight search to find flights from Dublin to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 February 2025.

Fly from

Dublin

Fly to

Dulles Intl

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 3/4

12:20-19:59

2 stops36h 39m

Washington, D.C. Dulles Intl

Mon 7/4

22:05-11:50

1 stop32h 45m

£317

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 5/3

08:50-15:45

1 stop11h 55m

Washington, D.C. Dulles Intl

Wed 12/3

18:35-16:40

1 stop18h 05m

£395

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 15/3

12:30-16:40

Nonstop8h 10m

Washington, D.C. Dulles Intl

Sun 1/6

20:25-08:15

Nonstop6h 50m

£414

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 12/4

20:10-15:00

2 stops23h 50m

Washington, D.C. Dulles Intl

Fri 25/4

22:40-19:20

1 stop15h 40m

£416

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

22:45-16:40

1 stop12h 55m

£418

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 9/6

14:15-22:10

1 stop12h 55m

Washington, D.C. Dulles Intl

Tue 24/6

20:30-11:05

1 stop9h 35m

£434

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 7/3

09:00-09:46

1 stop29h 46m

Washington, D.C. Dulles Intl

Sun 20/4

19:00-07:10

Nonstop7h 10m

£456

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 3/4

05:55-15:00

1 stop14h 05m

Washington, D.C. Dulles Intl

Mon 7/4

22:05-10:20

Nonstop7h 15m

£467

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 4/4

09:20-14:26

2 stops34h 06m

Washington, D.C. Dulles Intl

Mon 7/4

17:40-07:20

2 stops32h 40m

£496

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 15/3

16:10-20:15

Nonstop8h 05m

Washington, D.C. Dulles Intl

Sat 31/5

20:25-08:15

Nonstop6h 50m

£514

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 19 results
1
2

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 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 Dublin to Dulles Intl

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

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

Use this chart to determine the optimal time to book a return flight from Dublin to Dulles Intl. Price data was last updated on 14 February 2025.

To ensure you get the cheapest price possible for a flight from Dublin to Washington, D.C. Dulles Intl Airport, you should look to book at least 67 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Dublin 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 DUB to IAD?

Find hourly flight availability from Dublin 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 21 February 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 27% on flights from Dublin to Washington, D.C. Dulles Intl Airport by exploring options for tickets at midday.

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

Explore weekly flight availability from Dublin 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 21 February 2025.

The most flights from DUB to IAD are scheduled on a Monday (6 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Dulles Intl by month

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

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

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 21 February 2025.
Read through reviews of airlines operating flights from Dublin to Washington, D.C., such as Delta, Austrian Airlines and SWISS. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

8.0
Very Good

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

Boarding

8.2

Food

7.3

Comfort

8.0

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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

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?

    For a flight from Dublin to Washington, D.C. Dulles Intl, you will be flying from Dublin. Dublin (DUB) is just 5.7 mi from the center of the city. Dublin is the only Dublin airport and it handles 5 outbound flights to Washington, D.C. Dulles Intl per day. 6 airlines have flights to Washington, D.C. Dulles Intl from Dublin on a regular basis.

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

    Flying on Scandinavian Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at £317. Additional return tickets that might be worth considering are offered by Delta and Aer Lingus, with the lowest prices starting at £395 and £414, respectively. You may be able to fly from Dublin to Washington, D.C. Dulles Intl Airport for 31% less than the average price by searching for these airlines.

  • 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 £322. Users have also found prices from £379 and £404 on Aer Lingus and WestJet, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Dublin to Washington, D.C. Dulles Intl Airport consider choosing SWISS (100%), Air Canada (90%) or United Airlines (90%) as they are the most reliable in getting you off to your destination on time.

  • 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 £366. On average you can expect to pay £477. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for £334.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Dublin 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

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Alternative routes for Dublin to Dulles Intl

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

Top 6 airlines flying from Dublin to Dulles Intl

Discover the top 6 airlines that operate flights from Dublin to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£212Average£385FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£314Average£344FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£318Average£428FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
British AirwaysCheapest£327Average£517FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£341Average£610FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£451Average£570FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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Users can book flights with no change fees policies with our dedicated filters. Book flights from Dublin to Dulles Intl flexibly with Cheapflights today.

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Of course! You can now track prices for flights from Dublin to Dulles Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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