Find flights
Insights
When to book
FAQs & Tips
Direct Flights
Airlines
Deals

£242 Find cheap flights from Ireland to Washington, D.C. Dulles Intl Airport

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 24/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 29/5
Wed 5/6

Search hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C.
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C.
In the last 7 days, travellers have searched 43,219,010 times on KAYAK, and here's why:

Save 28% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Flights to Dulles Intl - Travel Insights & Trends

Get data-powered insights and trends into flights to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest day to fly to Washington, D.C.?

The average price of all flights to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Sunday where tickets can be as cheap as £307. On the other hand, the most expensive day to fly is Monday, where prices are £577 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights to Washington, D.C. Dulles Intl Airport is February, where tickets cost £296 on average for one-way flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Ireland is £622 and £589 respectively. For return trips, the best month to travel is February with an average price of £296.

What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

The average price for all flights to Washington, D.C. Dulles Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, when flights cost £360 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the morning, which is peak travel time and where the average cost of a ticket is £459.

What is a good deal for flights to Washington, D.C. Dulles Intl Airport?

If you’re looking for cheap airfare to Washington, D.C. Dulles Intl Airport, 25% of our users found tickets to Washington, D.C. Dulles Intl Airport for the following prices or less: From Dublin £377 one-way - £456 return.

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 43 days before departure.

Which airlines fly to Washington, D.C.?

Many airlines fly to Washington, D.C., the most common ones being Aer Lingus, United Airlines, and Ethiopian Air. See the amount of flights per week for popular airlines flying to Washington, D.C..

Which airline offers the most flights to Washington, D.C. Dulles Intl Airport?

Of the 8 airlines that fly to Washington, D.C. Dulles Intl Airport, United Airlines offers the most flights, with around 2,065 per week, followed by Delta with 145 flights per week.

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

The duration of your flight to Washington, D.C. depends on your departure and arrival airports. Obviously any flights that include a layover will also be longer. The most popular route to Washington, D.C. on KAYAK is from Dublin, which takes 8h 00m.

How many direct flights to Washington, D.C. Dulles Intl Airport are there each day?

There are around 9 direct flights from within Ireland to Washington, D.C. Dulles Intl Airport every day. Most flights depart in the afternoon, with 17:00 the most common departure time and 55% of flights departing in the afternoon.

How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

Each week there are around 62 direct flights from within Ireland to Washington, D.C. Dulles Intl Airport. The most common day for departures is Tuesday, with 15% of flights taking off on this day.

How many long-haul flights are there to Washington, D.C. Dulles Intl Airport each week?

There are not any medium-haul (3-6 hour flight duration) or short-haul (up to 3 hour flight duration) flights to Washington, D.C. Dulles Intl Airport. Instead, there are 28 long-haul flights (6-12 hour flight duration), with the most arriving from Dublin.

How many cities have direct flights to Washington, D.C. Dulles Intl Airport?

From Ireland, there are direct flights to Washington, D.C. Dulles Intl Airport from 1 city. This city is Dublin and there are 28 direct flights each week.

Good to know - Cheap tickets from Ireland to Washington, D.C.

Low season

January

High season

June

Cheapest flight

£242
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly (21% more expensive on average)
Flight from Dublin to Washington, D.C.

FAQs - booking Washington, D.C. flights

  • How far is Washington, D.C. from central Washington, D.C.?

    There are 22 miles between Washington, D.C. city centre and Washington, D.C..

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs £460. The cheapest price found on KAYAK in the last 2 weeks cost £317 and departed from Dublin Airport.

  • How does KAYAK find such low prices on flights to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Washington, D.C. with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Washington, D.C.

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington, D.C. flight deals.

Prefer to fly direct to Washington, D.C. Dulles Intl?

Find which airlines fly direct to Dulles Intl, which days they fly and book direct flights.

Direct departures

Ireland to Washington, D.C. Dulles Intl

Monday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Tuesday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Wednesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Thursday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Friday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Saturday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Sunday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Ireland

Monday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Tuesday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Wednesday

ANA, ASKY, Aer Lingus, +65 more

ANA, ASKY, +66 more

Thursday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Friday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

Saturday

ANA, ASKY, Aer Lingus, +66 more

ANA, ASKY, +67 more

Sunday

ANA, ASKY, Aer Lingus, +67 more

ANA, ASKY, +68 more

See more direct flights
See more direct flights

Top 5 airlines serving from Ireland to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 11221 reviews
7.2comfort
7.7boarding
8.1crew
7.1entertainment
6.7food
Airline reviews

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

2.0 MediocreAnonymous, Apr 2024RDU - IAD
Read more about United Airlines reviews

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

I like the non stop flight to Lagos. The cabin crew were great, the food was alright and the ride was smooth. The downside is there wasn’t wifi connection from Lagos to Washington as stated. The 11hrs flight, became boring at times because of no wifi.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

Plane didn’t even make it off the ground. We all had to get off and walk to a different terminal (lots of confusion) to get on a different plane. Landed fairly late, connections missed.

One of the best flying experiences I’ve ever had.

The flight cancellation and process for getting a new flight was not that clear. United also had some delays that were unexpected. I am the most disappointed by the fact that I originally bought a Lufthansa ticket, only to be flown by United.

Need to have more snacks for the duration and coffee.

Crowded flight, but upbeat and kind crew. Pilot greeted us at door, flight attendant thanked a number of “special” passengers for their business, another addressed an eight-year old boy as “young man.” United obviously trying to up their game, but though all of that is nice and notable, flying still feels like moving along a human assembly line, being herded into one small space after another (boarding areas with too few seats, planes with limited personal space, shuttles (IAD) packed too full.

On time - really well operated flight. Friendly staff. Super impressed with United on this round trip.

It was ok until we got to DC and I wanted to use my United Club pass and the snobbish receptionist said that they don’t take one pass. It took me everything itch of patience not to tell her off

Short flight so not much to rate. Surprised I had to pay for a soda.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Very good need to offer better choice of food for business

They should. Heck planes more often not when they are suppose to be leaving causing delays

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Always find Aer Lingus reliable and good value for money. Food on this flight was pretty basic and the headphone Jack at my seat only worked for one ear. Little disappointed in movie selection, limited on recent releases. Staff are okay - but I always buy a cheap ticket so not like I expect first class opulence anyway!!!

Boarding was so quick, flight was ahead of time which is great and the pilot spoke clearly and was letting people know everything, amazing, love travelling with you 😊

Great hospitality and service! Seats are better cushioned then some

Great hospitality and service! Seats could always be cushioned better.

did not get the seats we had specially paid for

This is a no frills airline. You cant expect much for the price. Low cost flight, clean, nice staff. That's all I need for the price. If you want more, book with another airline and pay more. For Europe trips, PLAY is the ONLY airline I use

Misleading instructions for check in. Although I did virtual check in and was instructed to head to security, once I was at security, they told me to go back to Play ticket counter and get paper tickets. Also, beware that Play doesn’t participate in TSA PreCheck. I didn’t know that, despite entering PreCheck info when I purchased the tickets. I wasted time in the TSA PreCheck line as well. So we had two setbacks at check in.

It's a budget airline, so forewarned is forearmed. Yes, you pay for everything like carry-on, checked baggage, seat selection, but that's becoming the case with major airlines. Bringing your own snacks and entertainment on board is highly recommended. It's no frills, but the crew, the plane and the flight itself was great. If you want pampering go for a larger airline. If you just want to get from A to B in comfort and safety, Play is a great choice.

It is a low cost airline. Staff are courteous. There is no entertainment. Food is purchased.

Upon boarding, the people at the gate were extremely rude, there were no outlets on a 6 hour international flight, there was no entertainment, all food and drink was purchase only (even snacks), and my seat reclining function was fully broken. The only redeeming quality was the flight attendants were extremely nice. This was by far the worst flight I have ever been on in my entire life

I don’t know how international flights can’t have media screens to keep people entertained for the long flight. Ugh.

Typical experience for budget airline. Boarding from KEF required bus transit from the gate to plane, so if you had "priority boarding" it was useless as it was simply a free-for-all when getting off the bus. But still no issues with getting our luggage into overhead bin so not really a problem.

Was very apprehensive about flying Play, but the flight was fine. Nothing special, nothing horrible. Fair price to get from New York to Iceland.

I wasn’t able to check in online the day before or the day of because their web configuration or business model idk. I arrived an hour early and check was closed and there was no one around to speak to and eventually was told there was no possible way to get a digital ticket despite I had no luggage to check and would have easily made it through security to boarding and had to pay for a new ticket for $330 ontop of the $169 I spend for the ticket and then I missed my rental car for $305 because I only arrived at midnight instead of noon that I was originally intended. All booked through kayak. I hope there is some kind of insurance from kayak because this was totally preventable had I not been blocked by play air from getting my check in and plane ticket.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Food and staff were excellent. Seats on Saga (business class) are comparable to domestic first class of US Airlines, regarding space and recline. Entertainment options had little international component.

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

There is no food without paying $. Only soft drinks are included in your fare.

Some drinks and basic snack will be good. Water should be served at least once an hour. Blankets for folks who might be cold.

Pros: "Flight was relatively empty. Professional crew, comfortable seats"
Cons: "I think they skipped me with food service. Checking up on passengers who may have been sleeping would be nice. Headphones need to be purchased. Limited entertainment options."
Cons: "Communication about international COVID requirements before the day of departure."
Pros: "My seat cushion was out of alignment so not great. But I like the two side seat configuration."
Cons: "Boarding is a zoo. Board by row. It’s faster."
Pros: "Icelandair crew were very hospitable and accompodating"
Cons: "I have never sat in such a narrow seat. Literally could not put my hand down the side to pull out my seat belt. Two days later I still have sores from where the side of the seats hit my hips. Did not even provide complimentary peanuts."
Cons: "Took far too long for drinks service into the flight. Almost 2 hours in before drinks came around to me"

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

Sorry my last review for prg to fra was for this flight. My prg to fra flight was fine but my second flight back to Washington DC was with a slow awful crew who wouldn’t come in a timely manner to take trash and take trash before serving coffee tea and was shoving other people’s bottles of water on me when we were not traveling together

Lufthansa was amazing. Definitely upgrade your seat if you can swing it - they take very good care of their passengers. Customs in DC is nothing short of a nightmare though. Stood in line waiting to go back through security for 30 minutes, had to RUN through and across two terminals to make my connection and only had 5 minutes to spare. Terrible. Very very poor coordination by the airport staff and CBP.

I was ver pleased with the service all the way through

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

During the flight there was a medical emergency. We were diverted. Of course I'm thankful they cared for the health of that passenger, but they did a poor job of communicating with the rest of us passengers. In the end we arrived at our destination several hours late, with no direction of how to rebook missed connecting flights. It all worked out in the end. Those of us that needed accommodations were put up in a hotel by Lufthansa until we could make it to our final destination. But it was United Airlines Personnel who really helped us navigate the process.

Always a pleasure to deal with United's helpful and knowledgeable staff

Book cheap flights from Ireland to Washington, D.C.

Recent return flight deals

 
These are the cheapest return flights to Washington, D.C. found on KAYAK in the last 72 hours.
24/9Tue
1 stopPLAY
11h 05mDUB-IAD
29/9Sun
1 stopPLAY
9h 45mIAD-DUB
£242
14/9Sat
1 stopPLAY
11h 05mDUB-IAD
16/9Mon
1 stopPLAY
10h 15mIAD-DUB
£250
2/10Wed
1 stopIcelandair
14h 55mDUB-IAD
3/11Sun
1 stopIcelandair
9h 35mIAD-DUB
£330
10/6Mon
1 stopIcelandair
14h 55mDUB-IAD
9/9Mon
1 stopIcelandair
9h 35mIAD-DUB
£340
25/9Wed
directAer Lingus
7h 50mDUB-IAD
29/9Sun
directAer Lingus
7h 05mIAD-DUB
£401
2/10Wed
directLufthansa
8h 10mDUB-IAD
3/11Sun
1 stopLufthansa
13h 55mIAD-DUB
£464
4/6Tue
directLufthansa
8h 00mDUB-IAD
12/6Wed
directLufthansa
7h 05mIAD-DUB
£484
5/6Wed
1 stopUnited Airlines
12h 13mDUB-IAD
10/6Mon
directUnited Airlines
7h 05mIAD-DUB
£486
6/6Thu
1 stopUnited Airlines
10h 25mDUB-IAD
12/6Wed
directUnited Airlines
7h 05mIAD-DUB
£491
30/9Mon
directAer Lingus
7h 50mDUB-IAD
2/10Wed
directAer Lingus
7h 05mIAD-DUB
£532

Search by stops

Search by airline

Search by price

Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Washington, D.C. found on KAYAK in the last 72 hours.
13/5Mon
1 stopPLAY
11h 05mDUB-IAD
£252
14/9Sat
1 stopPLAY
11h 05mDUB-IAD
£258
25/8Sun
1 stopPLAY
11h 05mDUB-IAD
£309
26/6Wed
1 stopPLAY
11h 05mDUB-IAD
£332
26/6Wed
1 stopPLAY
11h 05mDUB-IAD
£341
9/7Tue
1 stopPLAY
11h 05mDUB-IAD
£349
27/6Thu
1 stopPLAY
11h 05mDUB-IAD
£390
10/8Sat
1 stopPLAY
11h 05mDUB-IAD
£395
5/5Sun
directLufthansa
8h 00mDUB-IAD
£830
29/7Mon
directLufthansa
8h 00mDUB-IAD
£922

Search by stops

Search by airline

Search by price

Recent domestic flight deals

22/5Wed
directSun Country Air
2h 17mMSP-IAD
30/5Thu
directSun Country Air
2h 47mIAD-MSP
£102
23/5Thu
directSun Country Air
2h 17mMSP-IAD
30/5Thu
directSun Country Air
2h 47mIAD-MSP
£110
29/5Wed
directDelta
2h 24mMSP-IAD
31/5Fri
directDelta
2h 42mIAD-MSP
£142
22/5Wed
directUnited Airlines
1h 42mBOS-IAD
26/5Sun
directUnited Airlines
1h 40mIAD-BOS
£150
26/5Sun
directUnited Airlines
1h 41mBOS-IAD
29/5Wed
directUnited Airlines
1h 40mIAD-BOS
£151
22/5Wed
directDelta
2h 25mMSP-IAD
29/5Wed
directDelta
2h 42mIAD-MSP
£154
14/9Sat
directAlaska Airlines
5h 03mLAX-IAD
21/9Sat
directAlaska Airlines
5h 29mIAD-LAX
£198
21/5Tue
directAlaska Airlines
5h 00mLAX-IAD
25/5Sat
directAlaska Airlines
5h 35mIAD-LAX
£202
20/5Mon
multi-stopQatar Airways
45h 00mIAH-IAD
27/5Mon
multi-stopQatar Airways
43h 45mIAD-IAH
£2,356
21/5Tue
multi-stopQatar Airways
45h 00mIAH-IAD
27/5Mon
multi-stopQatar Airways
43h 45mIAD-IAH
£2,384

Search by stops

Search by airline

Search by price

Last minute flights to Dulles Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Washington, D.C. that are departing in the next 10 days.
4/5Sat
multi-stopSWISS
30h 05mDUB-IAD
11/5Sat
multi-stopSWISS
43h 30mIAD-DUB
£605
2/5Thu
multi-stopSWISS
34h 25mDUB-IAD
11/5Sat
multi-stopSWISS
43h 30mIAD-DUB
£636
1/5Wed
multi-stopScandinavian Airlines
32h 05mDUB-IAD
3/5Fri
multi-stopScandinavian Airlines
21h 00mIAD-DUB
£792

Search by stops

Search by airline

Search by price

Flights to Washington, D.C.

Destination:

Washington, D.C. (IAD)United States

Cabin classes:

£1,993
£1,841
£317

Browse origins:

  • Flights » 
  • Ireland

Popular routes

The most searched flights to Washington, D.C. by KAYAK users.

Browse destinations:

  • Flights » 
  • North America » 
  • United States » 
  • Washington, D.C. » 
  • Washington Dulles Airport