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Cheap flights from Ireland to Washington, D.C. from $341

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Washington, D.C. departing on 1/28. 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.

Recent round-trip flight deals from Ireland to Washington, D.C.

Enter your travel dates to find the best prices.
Icelandair Logo
11:30 am - 6:30 pm
DUB
-
IAD
12h 00m1 stop
Icelandair Logo
7:40 pm - 10:15 am
IAD
-
DUB
9h 35m1 stop
$424Icelandair
Fri, Jan 16 - Fri, Jan 23
Icelandair Logo
11:30 am - 6:30 pm
DUB
-
IAD
12h 00m1 stop
Icelandair Logo
7:40 pm - 10:15 am
IAD
-
DUB
9h 35m1 stop
$425Icelandair
Thu, Jan 15 - Wed, Jan 21
Scandinavian Airlines Logo
7:05 pm - 5:15 pm
DUB
-
IAD
27h 10m1 stop
Scandinavian Airlines Logo
8:30 pm - 6:20 pm
IAD
-
DUB
16h 50m1 stop
$472Scandinavian Airlines
Wed, Feb 11 - Wed, Feb 18
Scandinavian Airlines Logo
11:30 am - 5:15 pm
DUB
-
IAD
34h 45m2 stops
Scandinavian Airlines Logo
8:30 pm - 6:20 pm
IAD
-
DUB
16h 50m1 stop
$473Scandinavian Airlines
Wed, Feb 11 - Wed, Feb 18
Scandinavian Airlines Logo
7:05 pm - 4:50 pm
DUB
-
IAD
26h 45m1 stop
Scandinavian Airlines Logo
8:20 pm - 10:20 am
IAD
-
DUB
33h 00m2 stops
$478Scandinavian Airlines
Sun, Apr 12 - Thu, Apr 16
KLM Logo
5:55 am - 4:05 pm
DUB
-
IAD
15h 10m1 stop
KLM Logo
6:05 pm - 12:40 pm
IAD
-
DUB
13h 35m1 stop
$490KLM
Mon, Feb 9 - Mon, Feb 16
KLM Logo
8:50 am - 4:05 pm
DUB
-
IAD
12h 15m1 stop
KLM Logo
6:05 pm - 12:40 pm
IAD
-
DUB
13h 35m1 stop
$492KLM
Thu, Feb 12 - Thu, Feb 26
British Airways Logo
7:50 am - 11:12 pm
SNN
-
IAD
20h 22m2 stops
British Airways Logo
6:20 pm - 11:30 am
IAD
-
SNN
12h 10m1 stop
$648British Airways
Sun, Feb 8 - Sun, Feb 15
British Airways Logo
5:30 pm - 5:16 pm
SNN
-
IAD
28h 46m2 stops
British Airways Logo
4:40 pm - 7:25 pm
IAD
-
SNN
21h 45m2 stops
$656British Airways
Sun, Feb 8 - Sun, Feb 15
Multiple Airlines Logo
8:05 pm - 7:55 pm
SNN
-
IAD
28h 50m1 stop
Multiple Airlines Logo
6:20 pm - 11:30 am
IAD
-
SNN
12h 10m1 stop
$666Multiple Airlines
Thu, Feb 12 - Mon, Feb 16

Delta flights from Ireland to Washington, D.C. Dulles Intl Airport

Our best Delta deals on Ireland to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Jan 15
DUB8:50 amDublin
12h 15m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
Jan 21
IAD12:23 pmWashington, D.C. Dulles Intl
14h 27m
2 stops
DUB7:50 amDublin
$498
Find similar
Delta
Feb 9
DUB5:55 amDublin
18h 14m
2 stops
IAD7:09 pmWashington, D.C. Dulles Intl
Feb 16
IAD12:24 pmWashington, D.C. Dulles Intl
14h 26m
2 stops
DUB7:50 amDublin
$503
Find similar
Delta
Jan 15
DUB5:55 amDublin
15h 51m
2 stops
IAD4:46 pmWashington, D.C. Dulles Intl
Jan 21
IAD12:23 pmWashington, D.C. Dulles Intl
14h 27m
2 stops
DUB7:50 amDublin
$504
Find similar

Scandinavian Airlines flights from Ireland to Washington, D.C. Dulles Intl Airport

Our best Scandinavian Airlines deals on Ireland to Washington, D.C. Dulles Intl Airport flight tickets
Scandinavian Airlines
Feb 11
DUB7:05 pmDublin
27h 10m
1 stop
IAD5:15 pmWashington, D.C. Dulles Intl
Feb 18
IAD8:30 pmWashington, D.C. Dulles Intl
16h 50m
1 stop
DUB6:20 pmDublin
$472
Find similar
Scandinavian Airlines
Feb 11
DUB11:30 amDublin
34h 45m
2 stops
IAD5:15 pmWashington, D.C. Dulles Intl
Feb 18
IAD8:30 pmWashington, D.C. Dulles Intl
16h 50m
1 stop
DUB6:20 pmDublin
$473
Find similar
Scandinavian Airlines
Apr 12
DUB7:05 pmDublin
26h 45m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
Apr 16
IAD8:20 pmWashington, D.C. Dulles Intl
33h 00m
2 stops
DUB10:20 amDublin
$478
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ireland to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 28, 2025.
Use the filters below to find and compare flights from Ireland to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 1/16

11:30 am-6:30 pm

1 stop12h 00m

Washington, D.C. Dulles Intl

Fri 1/23

7:40 pm-10:15 am

1 stop9h 35m

$424

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 1/15

11:30 am-6:30 pm

1 stop12h 00m

Washington, D.C. Dulles Intl

Wed 1/21

7:40 pm-10:15 am

1 stop9h 35m

$425

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 2/11

7:05 pm-5:15 pm

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 2/18

8:30 pm-6:20 pm

1 stop16h 50m

$472

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 2/11

11:30 am-5:15 pm

2 stops34h 45m

Washington, D.C. Dulles Intl

Wed 2/18

8:30 pm-6:20 pm

1 stop16h 50m

$473

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sun 4/12

7:05 pm-4:50 pm

1 stop26h 45m

Washington, D.C. Dulles Intl

Thu 4/16

8:20 pm-10:20 am

2 stops33h 00m

$478

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 2/9

5:55 am-4:05 pm

1 stop15h 10m

Washington, D.C. Dulles Intl

Mon 2/16

6:05 pm-12:40 pm

1 stop13h 35m

$490

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 2/12

8:50 am-4:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Thu 2/26

6:05 pm-12:40 pm

1 stop13h 35m

$492

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 2/8

7:50 am-11:12 pm

2 stops20h 22m

Washington, D.C. Dulles Intl

Sun 2/15

6:20 pm-11:30 am

1 stop12h 10m

$648

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Sun 2/8

5:30 pm-5:16 pm

2 stops28h 46m

Washington, D.C. Dulles Intl

Sun 2/15

4:40 pm-7:25 pm

2 stops21h 45m

$656

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

Thu 2/12

8:05 pm-7:55 pm

1 stop28h 50m

Washington, D.C. Dulles Intl

Mon 2/16

6:20 pm-11:30 am

1 stop12h 10m

$666

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Ireland to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, January is the cheapest month to fly from Ireland to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $469. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $512.

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

Our data shows that Monday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $686. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to Washington, D.C. Dulles Intl Airport for around $905.

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

Flying to Washington, D.C. Dulles Intl Airport from Ireland in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $647 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $819 on average. Flights to Washington, D.C. Dulles Intl Airport from Ireland in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $602 when searching weeks out. 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 $502 on momondo.

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

There are 3 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.

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

Find info about flight duration, direct flights, and airports for your flight from Ireland to Washington, D.C. Dulles Intl Airport

Best Price Found

$520

Fastest flight time

7h 55m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Ireland in the past 72 hours is $520. The best round-trip flight deal from Ireland to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $678.
The fastest flight from Ireland to Washington, D.C. Dulles Intl Airport takes 7h 55m
Direct flights go from Ireland to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

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

    Prices for flights from Ireland to Washington, D.C. Dulles Intl Airport refresh daily.

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

  • How old do you have to be to fly from Ireland 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 layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland 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 you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Ireland to Washington, D.C. Dulles Intl Airport?

Best airlines flying from Ireland to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Ireland to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $425Free CancellationRating
7.0
592 reviews
Search Icelandair flights
Aer LingusPriceFrom $454Free CancellationRating
7.2
1,412 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $643Free CancellationRating
7.4
9,113 reviews
Search United Airlines flights

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Harpers Ferry
Gaithersburg
Reston
Manassas
Sterling
Fairfax

Why use momondo?

Why should I use momondo to find a flight deal from Ireland 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. from Ireland.

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

Flights from Ireland to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Ireland to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Washington, D.C. from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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