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Flights to Washington, D.C. Dulles Intl

€292 Cheap flights to Washington, D.C. Dulles Intl Airport

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Washington, D.C. Dulles Intl Airport departing on 20/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ireland to Washington, D.C. Dulles Intl Airport

Cheap return flights

Icelandair Logo
11:30 - 18:30DUB-IAD
12h 00m1 stop
Icelandair Logo
19:40 - 10:15IAD-DUB
9h 35m1 stop
€317Icelandair
Find Deal
Tue, 25 Nov - Sun, 30 Nov
Icelandair Logo
11:30 - 18:30DUB-IAD
12h 00m1 stop
Icelandair Logo
19:40 - 10:15IAD-DUB
9h 35m1 stop
€318Icelandair
Find Deal
Tue, 25 Nov - Sun, 30 Nov
Lufthansa Logo
09:10 - 20:15DUB-IAD
16h 05m1 stop
Lufthansa Logo
22:20 - 10:20IAD-DUB
7h 00mdirect
€340Lufthansa
Find Deal
Mon, 3 Nov - Mon, 10 Nov
Lufthansa Logo
05:55 - 15:15DUB-IAD
14h 20m1 stop
Lufthansa Logo
22:15 - 10:20IAD-DUB
7h 05mdirect
€341Lufthansa
Find Deal
Wed, 1 Oct - Tue, 14 Oct
Logo
05:55 - 15:15DUB-IAD
14h 20m1 stop
Logo
20:45 - 17:50IAD-DUB
16h 05m1 stop
€343
Find Deal
Wed, 1 Oct - Tue, 14 Oct
Logo
05:55 - 20:00DUB-IAD
19h 05m1 stop
Logo
17:45 - 12:10IAD-DUB
13h 25m1 stop
€347
Find Deal
Wed, 1 Oct - Wed, 15 Oct
Aer Lingus Logo
16:00 - 18:55DUB-IAD
7h 55mdirect
Aer Lingus Logo
21:00 - 08:50IAD-DUB
6h 50mdirect
€360Aer Lingus
Find Deal
Sat, 25 Oct - Sun, 2 Nov
Aer Lingus Logo
16:35 - 19:30DUB-IAD
7h 55mdirect
Aer Lingus Logo
17:20 - 05:10IAD-DUB
6h 50mdirect
€361Aer Lingus
Find Deal
Wed, 1 Oct - Tue, 14 Oct
United Airlines Logo
12:05 - 15:20DUB-IAD
8h 15mdirect
United Airlines Logo
22:20 - 10:20IAD-DUB
7h 00mdirect
€383United Airlines
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Tue, 11 Nov - Sun, 16 Nov
United Airlines Logo
12:05 - 15:20DUB-IAD
8h 15mdirect
United Airlines Logo
12:40 - 08:10IAD-DUB
14h 30m1 stop
€384United Airlines
Find Deal
Tue, 11 Nov - Sun, 16 Nov

momondo Fare Finder

 
Locate flights to Washington, D.C. Dulles Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 13,528 searches and data was last updated on 13 September 2025.
Use the filters below to find and compare flights to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 25/11

11:30-18:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Sun 30/11

19:40-10:15

1 stop9h 35m

€317

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 25/11

11:30-18:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Sun 30/11

19:40-10:15

1 stop9h 35m

€318

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 3/11

09:10-20:15

1 stop16h 05m

Washington, D.C. Dulles Intl

Mon 10/11

22:20-10:20

Nonstop7h 00m

€340

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/10

05:55-15:15

1 stop14h 20m

Washington, D.C. Dulles Intl

Tue 14/10

22:15-10:20

Nonstop7h 05m

€341

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/10

05:55-15:15

1 stop14h 20m

Washington, D.C. Dulles Intl

Tue 14/10

20:45-17:50

1 stop16h 05m

€343

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/10

05:55-20:00

1 stop19h 05m

Washington, D.C. Dulles Intl

Wed 15/10

17:45-12:10

1 stop13h 25m

€347

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 25/10

16:00-18:55

Nonstop7h 55m

Washington, D.C. Dulles Intl

Sun 2/11

21:00-08:50

Nonstop6h 50m

€360

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/10

16:35-19:30

Nonstop7h 55m

Washington, D.C. Dulles Intl

Tue 14/10

17:20-05:10

Nonstop6h 50m

€361

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 11/11

12:05-15:20

Nonstop8h 15m

Washington, D.C. Dulles Intl

Sun 16/11

22:20-10:20

Nonstop7h 00m

€383

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 11/11

12:05-15:20

Nonstop8h 15m

Washington, D.C. Dulles Intl

Sun 16/11

12:40-08:10

1 stop14h 30m

€384

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. Dulles Intl Airport from

Flights to Washington, D.C. Dulles Intl Airport – Travel Insights & Trends

Get data-powered insights and trends for flights to Washington, D.C. Dulles Intl Airport to help you craft the best travel plan.

What cabin class options are available on Ireland to Washington, D.C. Dulles Intl flights?

There are 2 cabin classes available to choose from on Ireland to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Thursday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Ireland. The lowest ticket price found for a Thursday departure recently was €637. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Sunday is €786.

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

The month of February is, on average, the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Ireland, with most prices found around €419. If you aren’t able to travel during the month of February, then book flights to Washington, D.C. Dulles Intl Airport from Ireland during November instead. Flights to Washington, D.C. Dulles Intl Airport in November, while not as cheap as those in February, still average around €432.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is in the afternoon. momondo users have found flights departing from Ireland to Washington, D.C. Dulles Intl Airport in the afternoon for as low as €516. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around €690. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Ireland to Washington, D.C. Dulles Intl flight route?

Fly from Dublin to Washington, D.C. Dulles Intl for the best Ireland - Washington, D.C. Dulles Intl flight prices

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around €515 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Ireland for as low as €404 on momondo.

Cheapest flights to Washington, D.C. Dulles Intl

Find the cheapest flights to Washington, D.C. Dulles Intl from your nearest city or airport
Find flights from Dublin to Washington, D.C. Dulles Intl Airport
CHEAPEST MONTH TO FLY TO WASHINGTON, D.C. DULLES INTL AIRPORT FROM DUBLINFebruary19% cheaperFlying from Dublin to Washington, D.C. Dulles Intl Airport costs on average just €419 in February
MOST EXPENSIVE MONTH TO FLY TO WASHINGTON, D.C. DULLES INTL AIRPORT FROM DUBLINAugust32% more expensiveIt costs about €684 for flights to Washington, D.C. Dulles Intl Airport from Dublin in August
MOST POPULAR MONTH TO FLY TO WASHINGTON, D.C. DULLES INTL AIRPORT FROM DUBLINAugust236% more users visitedMore momondo users searched in flights to Washington, D.C. Dulles Intl Airport from Dublin in August than any other month

Cheap Washington, D.C. Dulles Intl Airport flight deals and tips

Summary info about Washington, D.C. Dulles Intl Airport flight prices, duration and airlines

Best One-Way Price

€292

Best Round-Trip Price

€317

Fastest flight time

14h 50m

Popular in

August
The best one-way flight price to Washington, D.C. from Ireland in the last 72 hours is €292 (Dublin to Washington, D.C. Dulles Intl).
Search Deals
The best round-trip flight price to Washington, D.C. from Ireland in the last 72 hours is €317 (Dublin to Washington, D.C. Dulles Intl).
Search Deals
The fastest flight to Washington, D.C. from Ireland takes 14h 50m (Dublin to Washington, D.C. Dulles Intl).
Search Deals
August has the highest demand for flights to Washington, D.C., with a 13% price increase on average.
Search Deals

Frequently asked questions about flying to Washington, D.C. Dulles Intl Airport

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

From most locations, the cheapest flights to Washington, D.C. Dulles Intl Airport can be found during the month of February; however great deals can be found at other times.

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

From most locations, booking your flights to Washington, D.C. Dulles Intl Airport around 73 days prior to your departure date finds the best deals.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

From most locations, the cheapest day to fly to Washington, D.C. Dulles Intl Airport is Thursday. Most users found that departing on a Sunday was most expensive.

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

In general, when looking for the cheapest flight to Washington, D.C. Dulles Intl Airport, our data indicates that Afternoon flights are the most cost-effective. Morning flights tend to be the most expensive.

Is there an alternative airport near Washington, D.C. Dulles Intl Airport?

Those flying to Washington, D.C. Dulles Intl Airport could potentially find better pricing at Washington, D.C. Reagan-National Airport (6 km from Washington, D.C. city centre) or Baltimore/Washington Airport (44 km from Washington, D.C. city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into Washington, D.C.?

The cheapest airport near Washington, D.C. is typically Baltimore/Washington Airport, with an average price of €203/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

Which airlines fly to Washington, D.C. Dulles Intl Airport?

There are a total of 3 airlines that operate flight routes to Washington, D.C. Dulles Intl Airport, with Aer Lingus being the most popular option. An estimated 60% of those flying into Washington, D.C. Dulles Intl Airport choose to fly with Aer Lingus. If you’re unable to find tickets with Aer Lingus, then United Airlines and Icelandair are also popular airlines to fly with.

When did momondo last update prices for flights to Washington, D.C. Dulles Intl Airport?

Prices for flights to Washington, D.C. Dulles Intl Airport were last updated today.

How many operators does momondo search for flights to Washington, D.C. Dulles Intl Airport?

The number of operators available for flights to Washington, D.C. Dulles Intl Airport is 5 as of September 2025.

How old do you have to be to fly to Washington, D.C. Dulles Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Gettysburg

Why use momondo?

Why should I use momondo to find a flight deal to Washington, D.C.?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C..

Can I find flights to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for flights to Washington, D.C. to just show those with flexible booking policies.

How can momondo help me find flights to Washington, D.C.?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to Washington, D.C..

I’m not ready to book a flight to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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