IAD

€209 Find Cheap Flights to Washington Dulles Airport – Compare and Save

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 26/8. 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

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Everything you should know

Cheapest return fare
€448
Typical prices: €389-€578
Icelandair
Tue 24/11Tue 1/12
DUB - IAD • 1 stop
Cheapest direct flights
€511
Typical prices: €398-€518
Aer Lingus
Sat 7/11Sat 14/11
DUB - IAD • Direct
Top airlines
Most flights • 14 per week
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 15% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Tue, 24 Nov - Tue, 1 Dec
Icelandair Logo
11:30 - 18:30DUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:15IAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
€448Icelandair
Sat, 21 Nov - Sun, 29 Nov
Icelandair Logo
11:30 - 18:30DUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:15IAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
€457Icelandair
Mon, 23 Nov - Tue, 1 Dec
Icelandair Logo
11:30 - 18:30DUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
19:40 - 10:15IAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
€458Icelandair
Wed, 7 Oct - Mon, 12 Oct
Icelandair Logo
12:15 - 22:15DUB  Dublin-IAD Washington, D.C. Dulles Intl
15h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
20:30 - 13:15IAD  Washington, D.C. Dulles Intl-DUB Dublin
11h 45m1 stop Reykjavik Keflavik Intl
€466Icelandair
Sat, 7 Nov - Sat, 14 Nov
Aer Lingus Logo
12:15 - 15:35DUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 20mdirect
Aer Lingus Logo
17:05 - 04:55IAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 50mdirect
€511Aer Lingus
Thu, 12 Nov - Tue, 17 Nov
Aer Lingus Logo
16:20 - 19:30DUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 10mdirect
Aer Lingus Logo
17:05 - 04:55IAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 50mdirect
€511Aer Lingus
Thu, 17 Dec - Mon, 28 Dec
Aer Lingus Logo
12:15 - 15:35DUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 20mdirect
Aer Lingus Logo
17:05 - 04:55IAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 50mdirect
€511Aer Lingus
Sat, 12 Sep - Tue, 15 Sep
United Airlines Logo
12:30 - 15:35DUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 05mdirect
United Airlines Logo
17:15 - 09:45IAD  Washington, D.C. Dulles Intl-DUB Dublin
11h 30m1 stop Chicago O'Hare Intl
€621United Airlines
Sat, 12 Sep - Sun, 13 Sep
United Airlines Logo
12:30 - 15:35DUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 05mdirect
United Airlines Logo
17:45 - 11:10IAD  Washington, D.C. Dulles Intl-DUB Dublin
12h 25m1 stop Newark
€621United Airlines
Sat, 12 Sep - Mon, 14 Sep
United Airlines Logo
12:30 - 15:35DUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 05mdirect
United Airlines Logo
13:10 - 09:45IAD  Washington, D.C. Dulles Intl-DUB Dublin
15h 35m1 stop Chicago O'Hare Intl
€621United 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 day to fly to Washington, D.C.?

The average price of all round-trip 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 Wednesday where round-trip tickets can be as cheap as €692. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are €797 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 round-trip 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 €416 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Ireland is €721 and €710 respectively. For one-way flights, the best month to travel is February with an average price of €434.

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

The average price for all round-trip 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 round-trip flights cost €545 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 €770.

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 €571 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 2 weeks before departure, which saves you about 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

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

Low season

April

Cheapest flight

€209
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (26% 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 €857. The cheapest price found on KAYAK in the last 2 weeks cost €464 and departed from Dublin Airport.

  • 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.

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 €748
  • 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 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 10115 reviews
6.7Food
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
Airline reviews

Very kind Lufthansa agent somehow gave us all no charge extra business class seats and helped us get home rested and happy.

10.0 ExcellentAnonymous, Aug 2026
Read more United Airlines reviews

Very kind Lufthansa agent somehow gave us all no charge extra business class seats and helped us get home rested and happy.

The lounge was not accessible because it was located before the passport control, and backtracking was impossible.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

Entertainment center did not work and no electric available at seat for 11 hour flight. Didn’t have access to overhead light or call button. Food was tasteless and had a high salt (27 %) of recommended daily salt intake

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

The flight was canceled. I couldn't get on another flight. Meal voucher wouldn't work. The whole experience was a clusterfuck.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

Flight was delayed 14 hours due to DC air show and weather. Missed connection to MUC.

Slight delay but not bad. UA app worked well! Got regular updates of gate changes, etc. Don't have any complaints.

We traveled with my 90 year old mother and she was well cared for by everyone from the wheelchair attendant to crew. Greatly appreciated!

Very comfortable flight. Great service, food options, and entertainment options. With Wi-Fi!

On time departure and arrival at LAX - good inflight entertainment - all basic seats on every airline right now begin to feel small after 10 hours!!

I was pleasantly surprised. I've never flown this airline and the seats were comfy, I couldn't select my seat but luckily got aisle and was able to comfortably sleep the whole trip except when they came around with an in flight free meal, drinks then snack at the end. I'd fly with Aer Lingus again. The only annoying thing is you had to pay for WiFi for different hours of usage but luckily I didn't need it

This was a great flight. I love the way they had general boarding board from the back first by seat row and in general the flight was very comfortable. The seats were actually comfy, and the food served was surprisingly good.

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

I was so grateful for the kindness of the crew. They made a long trip very pleasant. Food was delicious. Many movie options

We were very satisfied and would fly with Aer Lingus again in the future.

during a very rough flight, I was forced to sit in a last row seat, fell asleep, and was forced to return to my assigned seat after the turbulence. The stewardess then used that seat to sleep.

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.

Travelling to a place near Dulles Intl?

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

Everything you need to know for your flight to Dulles Intl

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