Cheap Flights from Dublin (DUB) to Washington Dulles (IAD)

Compare Dublin to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

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Flight deals from Dublin Airport to Washington Dulles Airport

Looking for a cheap last-minute deal or the best return flight from Dublin Airport to Washington Dulles Airport? If you want to travel next month, return fares start from £379. Find the lowest prices on one-way and return tickets right here.

Washington D.C..£332 per passenger.Departing Fri, 6 Nov, returning Fri, 13 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Fri, 6 Nov, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Fri, 13 Nov, arriving in Dublin.Price includes taxes and charges.From £332, select.

Washington D.C..£354 per passenger.Departing Fri, 30 Oct, returning Tue, 3 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Fri, 30 Oct, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Tue, 3 Nov, arriving in Dublin.Price includes taxes and charges.From £354, select.

Washington D.C..£359 per passenger.Departing Wed, 25 Nov, returning Sun, 6 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Wed, 25 Nov, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Sun, 6 Dec, arriving in Dublin.Price includes taxes and charges.From £359, select.

Washington D.C..£372 per passenger.Departing Sat, 23 May, returning Sat, 30 May.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Sat, 23 May, arriving in Washington Dulles.Inbound indirect flight with Scandinavian Airlines, departs from Washington Dulles on Sat, 30 May, arriving in Dublin.Price includes taxes and charges.From £372, select.

Washington D.C..£376 per passenger.Departing Wed, 29 Apr, returning Sat, 2 May.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Wed, 29 Apr, arriving in Washington Dulles.Inbound indirect flight with Scandinavian Airlines, departs from Washington Dulles on Sat, 2 May, arriving in Dublin.Price includes taxes and charges.From £376, select.

Washington D.C..£379 per passenger.Departing Fri, 17 Apr, returning Mon, 20 Apr.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Fri, 17 Apr, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Mon, 20 Apr, arriving in Dublin.Price includes taxes and charges.From £379, select.

Washington D.C..£382 per passenger.Departing Fri, 18 Sep, returning Tue, 27 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Fri, 18 Sep, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Tue, 27 Oct, arriving in Dublin.Price includes taxes and charges.From £382, select.

Washington D.C..£390 per passenger.Departing Fri, 29 May, returning Mon, 1 Jun.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Fri, 29 May, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Mon, 1 Jun, arriving in Dublin.Price includes taxes and charges.From £390, select.

Washington D.C..£391 per passenger.Departing Thu, 3 Sep, returning Mon, 21 Sep.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Thu, 3 Sep, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Mon, 21 Sep, arriving in Dublin.Price includes taxes and charges.From £391, select.

Washington D.C..£391 per passenger.Departing Fri, 18 Sep, returning Wed, 27 Jan.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Fri, 18 Sep, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Wed, 27 Jan, arriving in Dublin.Price includes taxes and charges.From £391, select.

Washington D.C..£392 per passenger.Departing Tue, 2 Jun, returning Sat, 6 Jun.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Tue, 2 Jun, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 6 Jun, arriving in Dublin.Price includes taxes and charges.From £392, select.

Washington D.C..£399 per passenger.Departing Sat, 13 Feb, returning Sat, 20 Feb.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Sat, 13 Feb, arriving in Washington Dulles.Inbound indirect flight with Scandinavian Airlines, departs from Washington Dulles on Sat, 20 Feb, arriving in Dublin.Price includes taxes and charges.From £399, select.

Washington D.C..£400 per passenger.Departing Sat, 10 Oct, returning Sat, 17 Oct.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Sat, 10 Oct, arriving in Washington Dulles.Inbound indirect flight with Scandinavian Airlines, departs from Washington Dulles on Sat, 17 Oct, arriving in Dublin.Price includes taxes and charges.From £400, select.

Washington D.C..£413 per passenger.Departing Thu, 24 Dec, returning Thu, 31 Dec.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Dublin on Thu, 24 Dec, arriving in Washington Dulles.Inbound indirect flight with British Airways, departs from Washington Dulles on Thu, 31 Dec, arriving in Dublin.Price includes taxes and charges.From £413, select.

Washington D.C..£415 per passenger.Departing Sat, 29 Aug, returning Sat, 12 Sep.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Dublin on Sat, 29 Aug, arriving in Washington Dulles.Inbound indirect flight with Icelandair, departs from Washington Dulles on Sat, 12 Sep, arriving in Dublin.Price includes taxes and charges.From £415, select.

Washington D.C..£416 per passenger.Departing Wed, 27 May, returning Thu, 10 Sep.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Dublin on Wed, 27 May, arriving in Washington Dulles.Inbound indirect flight with Scandinavian Airlines, departs from Washington Dulles on Thu, 10 Sep, arriving in Dublin.Price includes taxes and charges.From £416, select.

Find the cheapest month to fly from Dublin to Washington Dulles

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Dublin to Washington Dulles flights are currently cheapest in November.

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Direct flights from Dublin to Washington Dulles

Dublin to Washington Dulles: Alternative routes

Compare routes from Dublin to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

Dublin to Washington D.C.: Flight information

The things to know before you go.

Cheapest flight found	£332
Cheapest month to fly	November
Average flight time	8 hrs, 7 mins
Most popular airline	Aer Lingus
Average flights per week	179

Finding cheap flights from Dublin to Washington Dulles: Frequently asked questions

How much are return flights from Dublin to Washington Dulles?

The best price we found for a return flight from Dublin to Washington Dulles is £332. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Dublin to Washington Dulles?

8 hours and 7 minutes is the average flight time from Dublin to Washington Dulles.

Which airlines fly direct from Dublin to Washington Dulles?

Aer Lingus, Iberia and British Airways fly direct from Dublin to Washington Dulles.

How many flights are there a week from Dublin to Washington Dulles?

As of March 2026, there are 97 flights per week flying from Dublin to Washington Dulles.

When is the cheapest time to fly from Dublin to Washington Dulles?

The cheapest month to fly from Dublin to Washington Dulles is usually November.

Which upcoming date is cheapest to fly from Dublin Airport to Washington Dulles Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to Washington Dulles Airport on Friday, 6 November 2026.

Can I get a direct flight from Dublin Airport to Washington Dulles Airport?

Yes – the average flight time is 8 hours and 7 minutes.

How can I find the best flight deal to Washington Dulles?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington Dulles but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Washington D.C.?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Dublin Airport to Washington Dulles with?

Currently, Icelandair and Aer Lingus offer the cheapest flight tickets to Washington Dulles.

Travelling from Dublin Airport (DUB) to Washington Dulles International Airport (IAD): what you need to know

Jump on a direct flight from Dublin Airport to Washington Dulles International Airport and you'll be travelling for an average of 8 hours.
The timezone in Washington DC is UTC-4, which is four hours behind Dublin.
Every week, there are 28 Dublin Airport to Washington Dulles International Airport flights. If you'd like to be on board as early as possible, pick the 11:45 Aer Lingus flight. If you'd rather make the most of your time before you fly, the latest flight is at 16:40 with Aer Lingus.
Arrive at the airport on time so you don't miss your DUB to IAD flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.
You'll likely experience longer lines during popular months such as August. Arriving up to four hours in advance for an international flight and two hours for a domestic departure will help ensure a smooth travel experience.
Travelling to Washington DC (and then discovering more of United States!) is a breeze with Aer Lingus. This popular airline has direct flights from Dublin Airport to Washington Dulles International Airport.
The airline that passengers book most often on this route is Aer Lingus.
United Airlines leads the way as the most punctual carrier for DUB to IAD flights, with 86.27% of its services arriving as scheduled.
If you'd like to explore another city along the way, simply uncheck 'Direct flights only' when searching for your ticket from Dublin Airport to Washington Dulles International Airport. Here are the top stopovers between DUB and IAD:
- Logan International Airport
- Edinburgh Airport
- Pearson International Airport

How to find the cheapest flights from Dublin Airport (DUB) to Washington Dulles International Airport (IAD)

The cheapest price we've found for a one-way Dublin Airport to Washington Dulles International Airport flight is £248. A round-trip fare is currently £332. Depending on the availability when you book, these fares may change.
Book one month before flying. After looking at the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from DUB to IAD.
The cheapest month for flights from Dublin Airport to Washington Dulles International Airport is December. Use the 'Whole month' tool to see the lowest prices if you have flexible dates.
You don't need to check back in every day to find out if fares have dropped when you create a Price Alert. We'll send you an update the moment the price changes on cheap flights from DUB to IAD.
Tailor your flights using filters. Choose your preferred arrival and departure times, total journey duration and airlines. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Dublin Airport to Washington Dulles International Airport.

Handy information about Dublin Airport (DUB)

When it comes to the on-time performance of Dublin Airport, data shows 72.87% of flights meet their scheduled arrival time.
Dublin Airport is about 13 miles from central Dublin. If you're driving, catching a cab or ride-sharing from the centre, it'll take you 30 minutes or so to get there, depending on the traffic.
Catching public transport? You can expect a journey time of around 2 hours 10 minutes.
Get your holiday off to a relaxed start by staying near DUB. Whether you have an early flight from Dublin Airport to Washington Dulles International Airport or just don't like being rushed, these stays are the answer:

Arriving at Washington Dulles International Airport (IAD)

The last thing you want is a long trip to your hotel if you're landing late on a Dublin Airport to Washington Dulles International Airport flight. Book one of these accommodation options near IAD instead:
Begin your adventure by picking up a Washington Dulles International Airport rental car. Grab a set of wheels from Dollar, Thrifty or Sixt and experience the lesser-explored corners of Washington DC and beyond.
Booking your ride from Washington Dulles International Airport around one week ahead gives you the best shot at securing a great deal.

Getting from Washington Dulles International Airport (IAD) to central Washington DC

IAD is located at 1 Saarinen Circle.
Washington Dulles International Airport is roughly 35 miles from the centre of Washington DC. Driving there takes about 50 minutes.
Travelling to the centre on public transport will take you around 3 hours 25 minutes.

When to fly to Washington Dulles International Airport (IAD)

It's time to work out your travel dates for your flight from Dublin Airport to Washington Dulles International Airport. April is the most popular month to head to Washington DC. If you want a quieter vibe, go in January.
Book your flight from Dublin Airport to Washington Dulles International Airport for July if you'd like to explore Washington DC during its warmest month. Expect temperatures of between 19ºC (66ºF) and 33ºC (91ºF).
If you want cooler conditions, look for a cheap ticket from DUB to IAD in January. Average temperatures are between -6ºC (21ºF) and 10ºC (50ºF) then.

Explore more of United States

You've done Washington DC, now it's time to explore other parts of United States. Journey around 200 miles north-east to New York to check off its leading attractions. From Statue of Liberty to Central Park and Empire State Building, you'll have a packed itinerary ahead.
Philadelphia is another must-experience destination in United States and is around 120 miles north-east of Washington DC. No trip is complete without visiting Liberty Bell, Independence Hall and Philadelphia Museum of Art.