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Flights to Washington, D.C. Dulles Intl

€280 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 21/1. 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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0 bags

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Find the cheapest flights from Ireland to Washington, D.C. Dulles Intl Airport

Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
14:15 - 19:20
DUB
-
IAD
10h 05m1 stop
Icelandair Logo
20:30 - 13:15
IAD
-
DUB
11h 45m1 stop
€358Icelandair
Thu, 16 Apr - Mon, 20 Apr
Icelandair Logo
11:30 - 18:30
DUB
-
IAD
12h 00m1 stop
Icelandair Logo
19:40 - 10:15
IAD
-
DUB
9h 35m1 stop
€361Icelandair
Thu, 15 Jan - Wed, 21 Jan
Scandinavian Airlines Logo
12:30 - 17:15
DUB
-
IAD
33h 45m1 stop
Scandinavian Airlines Logo
20:30 - 18:20
IAD
-
DUB
16h 50m1 stop
€381Scandinavian Airlines
Wed, 11 Feb - Wed, 18 Feb
Scandinavian Airlines Logo
10:10 - 18:50
DUB
-
IAD
13h 40m1 stop
Scandinavian Airlines Logo
20:30 - 18:20
IAD
-
DUB
16h 50m1 stop
€385Scandinavian Airlines
Sat, 31 Jan - Sat, 7 Feb
Multiple Airlines Logo
06:00 - 16:05
ORK
-
IAD
15h 05m1 stop
Multiple Airlines Logo
18:50 - 15:00
IAD
-
ORK
15h 10m1 stop
€442Multiple Airlines
Sat, 31 Jan - Sat, 7 Feb
Delta Logo
06:00 - 16:05
ORK
-
IAD
15h 05m1 stop
Delta Logo
12:23 - 15:00
IAD
-
ORK
21h 37m2 stops
€443Delta
Sat, 31 Jan - Sat, 7 Feb
Delta Logo
06:00 - 19:09
ORK
-
IAD
18h 09m2 stops
Delta Logo
12:23 - 15:00
IAD
-
ORK
21h 37m2 stops
€447Delta
Sat, 31 Jan - Sat, 7 Feb
British Airways Logo
20:05 - 15:35
SNN
-
IAD
24h 30m1 stop
British Airways Logo
21:45 - 15:45
IAD
-
SNN
13h 00m1 stop
€537British Airways
Fri, 30 Jan - Fri, 6 Feb
British Airways Logo
20:05 - 15:35
SNN
-
IAD
24h 30m1 stop
British Airways Logo
18:20 - 16:45
IAD
-
SNN
17h 25m1 stop
€556British Airways
Fri, 23 Jan - Sun, 25 Jan
Multiple Airlines Logo
17:30 - 18:30
SNN
-
IAD
30h 00m2 stops
Multiple Airlines Logo
19:40 - 19:20
IAD
-
SNN
18h 40m2 stops
€647Multiple Airlines
Mon, 12 Jan - Sun, 18 Jan

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 18 December 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

Thu 16/4

14:15-19:20

1 stop10h 05m

Washington, D.C. Dulles Intl

Mon 20/4

20:30-13:15

1 stop11h 45m

€358

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 15/1

11:30-18:30

1 stop12h 00m

Washington, D.C. Dulles Intl

Wed 21/1

19:40-10:15

1 stop9h 35m

€361

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 11/2

12:30-17:15

1 stop33h 45m

Washington, D.C. Dulles Intl

Wed 18/2

20:30-18:20

1 stop16h 50m

€381

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 31/1

10:10-18:50

1 stop13h 40m

Washington, D.C. Dulles Intl

Sat 7/2

20:30-18:20

1 stop16h 50m

€385

CorkWashington, D.C.

ORK - IAD

ORKIAD

Cork

Sat 31/1

06:00-16:05

1 stop15h 05m

Washington, D.C. Dulles Intl

Sat 7/2

18:50-15:00

1 stop15h 10m

€442

CorkWashington, D.C.

ORK - IAD

ORKIAD

Cork

Sat 31/1

06:00-16:05

1 stop15h 05m

Washington, D.C. Dulles Intl

Sat 7/2

12:23-15:00

2 stops21h 37m

€443

CorkWashington, D.C.

ORK - IAD

ORKIAD

Cork

Sat 31/1

06:00-19:09

2 stops18h 09m

Washington, D.C. Dulles Intl

Sat 7/2

12:23-15:00

2 stops21h 37m

€447

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 30/1

20:05-15:35

1 stop24h 30m

Washington, D.C. Dulles Intl

Fri 6/2

21:45-15:45

1 stop13h 00m

€537

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Fri 23/1

20:05-15:35

1 stop24h 30m

Washington, D.C. Dulles Intl

Sun 25/1

18:20-16:45

1 stop17h 25m

€556

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Mon 12/1

17:30-18:30

2 stops30h 00m

Washington, D.C. Dulles Intl

Sun 18/1

19:40-19:20

2 stops18h 40m

€647

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 €620. 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 €794.

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

The month of January is, on average, the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Ireland, with most prices found around €400. If you aren’t able to travel during the month of January, 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 January, still average around €436.

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 €514. 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 €692. 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 €507 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 €428 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 DUBLINJanuary22% cheaperFlying from Dublin to Washington, D.C. Dulles Intl Airport costs on average just €400 in January
MOST EXPENSIVE MONTH TO FLY TO WASHINGTON, D.C. DULLES INTL AIRPORT FROM DUBLINAugust34% more expensiveIt costs about €682 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 DUBLINJune373% more users visitedMore momondo users searched in flights to Washington, D.C. Dulles Intl Airport from Dublin in June 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

€280

Best Round-Trip Price

€358

Fastest flight time

14h 35m

Popular in

August
The best one-way flight price to Washington, D.C. from Ireland in the last 72 hours is €280 (Shannon 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 €358 (Dublin to Washington, D.C. Dulles Intl).
Search Deals
The fastest flight to Washington, D.C. from Ireland takes 14h 35m (Dublin to Washington, D.C. Dulles Intl).
Search Deals
August has the highest demand for flights to Washington, D.C., with a 14% 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 January; 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 36 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 Washington, D.C. Reagan-National Airport, with an average price of €220/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 64% 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 December 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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Find better results for your trip to Washington, D.C. Dulles Intl Airport IAD

Popular Flights to Washington, D.C. Dulles Intl Airport

Popular routes according to searches in the past day on momondo
Flights from Dublin to IADfrom €466