IAD

€284 Find Cheap Flights to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 1/2. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Washington, D.C., as well as popular online travel agencies
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Everything you should know

Cheapest return fare
€345
Overall average: €484
Multiple Airlines
Wed 22/4Sat 2/5
DUB - IAD • 1 stop
Cheapest direct flights
€445
Typical prices: €396-€487
Aer Lingus
Sun 15/2Sun 22/2
DUB - IAD • Direct
When to travel
November
Cheapest • 16% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Dulles Intl

Wed, 22 Apr - Sat, 2 May
Multiple Airlines Logo
19:45 - 15:50
DUB
-
IAD
25h 05m
1 stop
Multiple Airlines Logo
22:25 - 19:30
IAD
-
DUB
16h 05m
1 stop
€345Multiple Airlines
Thu, 29 Jan - Thu, 5 Feb
Icelandair Logo
11:30 - 18:30
DUB
-
IAD
12h 00m
1 stop
Icelandair Logo
19:40 - 10:15
IAD
-
DUB
9h 35m
1 stop
€361Icelandair
Wed, 4 Mar - Wed, 11 Mar
Icelandair Logo
11:30 - 18:30
DUB
-
IAD
12h 00m
1 stop
Icelandair Logo
20:40 - 10:15
IAD
-
DUB
9h 35m
1 stop
€363Icelandair
Thu, 23 Apr - Sun, 26 Apr
TAP AIR PORTUGAL Logo
18:50 - 15:05
DUB
-
IAD
25h 15m
1 stop
TAP AIR PORTUGAL Logo
22:35 - 18:05
IAD
-
DUB
14h 30m
1 stop
€382TAP AIR PORTUGAL
Thu, 5 Mar - Thu, 12 Mar
KLM Logo
17:15 - 16:05
ORK
-
IAD
27h 50m
1 stop
KLM Logo
19:05 - 10:45
IAD
-
ORK
11h 40m
1 stop
€433KLM
Thu, 5 Mar - Thu, 12 Mar
KLM Logo
06:00 - 16:28
ORK
-
IAD
15h 28m
2 stops
KLM Logo
19:05 - 23:25
IAD
-
ORK
24h 20m
1 stop
€441KLM
Wed, 4 Mar - Wed, 11 Mar
British Airways Logo
20:05 - 15:35
SNN
-
IAD
24h 30m
1 stop
British Airways Logo
19:20 - 16:45
IAD
-
SNN
17h 25m
1 stop
€543British Airways
Wed, 4 Mar - Wed, 11 Mar
British Airways Logo
07:50 - 20:30
SNN
-
IAD
17h 40m
2 stops
British Airways Logo
19:20 - 19:25
IAD
-
SNN
20h 05m
1 stop
€552British Airways
Thu, 5 Feb - Mon, 9 Feb
American Airlines Logo
11:55 - 12:36
ORK
-
IAD
29h 41m
2 stops
American Airlines Logo
17:46 - 15:25
IAD
-
ORK
16h 39m
2 stops
€586American Airlines
Thu, 5 Feb - Mon, 9 Feb
American Airlines Logo
11:55 - 19:55
ORK
-
IAD
13h 00m
1 stop
American Airlines Logo
17:46 - 15:25
IAD
-
ORK
16h 39m
2 stops
€601American Airlines
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

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 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 November, where tickets cost €441 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 €691 and €690 respectively. For return trips, the best month to travel is November with an average price of €441.

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 €702 one-way - €599 return.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 36 days before departure.

Good to know – Book Cheap Washington, D.C. Dulles Intl Airport Plane Tickets

Low seasonFebruary
Cheapest flight€284
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (31% more expensive on average)
Flight from Dublin to Washington Dulles Airport

When to book flights to Dulles Intl

Are your dates flexible? Find out the best times to travel to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. The information is for flights to Washington, D.C. based on your location. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs - booking Washington Dulles Airport flights

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

    Washington, D.C. Dulles Intl Airport is 36 km from the centre of Washington, D.C..

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

    On average, a flight to Washington, D.C. costs €688. The cheapest price found on KAYAK in the last 2 weeks cost €477 and departed from Dublin Airport.

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

    Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Thursday where tickets can be as cheap as €648. On the other hand, the most expensive day to fly is Sunday, where prices are €809 on average.

  • How does KAYAK find such low prices on flights to Washington Dulles Airport?

    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 Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport 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 Dulles Airport?

    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 Dulles Airport 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 Dulles Airport?

    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 Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

    The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, when flights cost €524 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 €704.

Top tips for finding cheap flights to Washington Dulles Airport

  • Looking for cheap airfare to Washington Dulles Airport? 25% of our users found return tickets to Washington Dulles Airport for the following prices or less: From Dublin €651
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Reviews of the top 3 airlines flying 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 9177 reviews
7.3Comfort
7.7Boarding
7.1Entertainment
8.1Crew
6.6Food
Airline reviews

The seats were comfortable and we had leg room. Great entertainment.

10.0 ExcellentAnonymous, Jan 2026
ZRH - IAD
Read more United Airlines reviews

The seats were comfortable and we had leg room. Great entertainment.

The flight crew where really good. Better then the crew from BNE to SFO

Safe made to destination. Late to start at GVA for icy reasons but we fought our next fly.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

l really enjoy very much the flight was very pleasant

The flight was delayed for 1:30 hours for maintenance issues. They should give more information about connecting flights. For a Business Cabin the Crew was mediocre.

The food is terrible. The same pasta or chicken with bad taste and presentation

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Great crew, excellent landing, good food. Over all great experience. Thank you!

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

It’s my new favourite airline! Everything was smooth and relaxed!

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

Customer service was excellent! The app was terrible, tried several times to check in without success! But the young lady that checked us in was absolutely terrific and helpful.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Travelling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
Arlington
Falls Church
Alexandria
Hanover
Annapolis
Hyattsville
Woodbridge
Linthicum Heights
Winchester
Gettysburg
Fredericksburg
Ashburn
Sterling
National Harbor
Fairfax
Oxon Hill
Gaithersburg
Herndon
Owings Mills
Leesburg

Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.