Cheap flights from Ireland to Washington, D.C. from $319

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 9/22. 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.

Scandinavian Airlines Logo
10:45 am - 6:50 pmDUB-IAD
37h 05m2 stops
Scandinavian Airlines Logo
8:30 pm - 11:20 amIAD-DUB
57h 50m2 stops
$380Scandinavian Airlines
Find Deal
vie., nov. 21 - jue., dic. 4
Scandinavian Airlines Logo
10:45 am - 6:50 pmDUB-IAD
37h 05m2 stops
Scandinavian Airlines Logo
8:30 pm - 9:25 amIAD-DUB
31h 55m1 stop
$382Scandinavian Airlines
Find Deal
vie., nov. 21 - jue., dic. 4
Aer Lingus Logo
12:50 pm - 3:50 pmDUB-IAD
8h 00mnonstop
Aer Lingus Logo
8:25 pm - 8:20 amIAD-DUB
6h 55mnonstop
$422Aer Lingus
Find Deal
sáb., sep. 6 - sáb., sep. 20
Aer Lingus Logo
12:50 pm - 3:50 pmDUB-IAD
8h 00mnonstop
Aer Lingus Logo
5:20 pm - 5:10 amIAD-DUB
6h 50mnonstop
$429Aer Lingus
Find Deal
jue., sep. 4 - jue., sep. 11
Icelandair Logo
11:30 am - 6:20 pmDUB-IAD
11h 50m1 stop
Icelandair Logo
7:40 pm - 10:15 amIAD-DUB
9h 35m1 stop
$438Icelandair
Find Deal
jue., nov. 6 - mar., nov. 11
Icelandair Logo
2:15 pm - 7:20 pmDUB-IAD
10h 05m1 stop
Icelandair Logo
8:30 pm - 11:05 amIAD-DUB
9h 35m1 stop
$440Icelandair
Find Deal
mar., sep. 2 - sáb., sep. 6
KLM Logo
1:05 pm - 7:43 pmSNN-IAD
11h 38m1 stop
KLM Logo
12:13 pm - 11:10 amIAD-SNN
17h 57m1 stop
$656KLM
Find Deal
jue., ago. 28 - lun., sep. 1
KLM Logo
6:00 am - 3:35 pmORK-IAD
14h 35m1 stop
KLM Logo
7:05 pm - 4:45 pmIAD-ORK
17h 40m1 stop
$660KLM
Find Deal
sáb., oct. 25 - mar., oct. 28
United Airlines Logo
9:30 am - 5:30 pmSNN-IAD
13h 00m1 stop
United Airlines Logo
6:30 am - 7:30 amIAD-SNN
20h 00m1 stop
$685United Airlines
Find Deal
dom., sep. 14 - sáb., sep. 20
United Airlines Logo
9:30 am - 5:30 pmSNN-IAD
13h 00m1 stop
United Airlines Logo
5:53 pm - 10:15 amIAD-SNN
11h 22m1 stop
$687United Airlines
Find Deal
lun., sep. 1 - lun., sep. 8

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

Our best Icelandair deals on Ireland to Washington, D.C. Dulles Intl Airport flight tickets
Icelandair
Nov 6
DUB11:30 amDublin
11h 50m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
Nov 11
IAD7:40 pmWashington, D.C. Dulles Intl
9h 35m
1 stop
DUB10:15 amDublin
Icelandair
Sep 2
DUB2:15 pmDublin
10h 05m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
Sep 6
IAD8:30 pmWashington, D.C. Dulles Intl
9h 35m
1 stop
DUB11:05 amDublin
Icelandair
Aug 13
DUB12:15 pmDublin
14h 55m
1 stop
IAD10:10 pmWashington, D.C. Dulles Intl
Feb 20
IAD7:40 pmWashington, D.C. Dulles Intl
9h 35m
1 stop
DUB10:15 amDublin

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

Our best British Airways deals on Ireland to Washington, D.C. Dulles Intl Airport flight tickets
British Airways
Nov 28
SNN7:50 amShannon
16h 40m
2 stops
IAD7:30 pmWashington, D.C. Dulles Intl
Jan 3
IAD8:10 pmWashington, D.C. Dulles Intl
15h 35m
2 stops
SNN4:45 pmShannon
British Airways
Aug 18
ORK7:20 amCork
17h 50m
1 stop
IAD8:10 pmWashington, D.C. Dulles Intl
Aug 25
IAD4:36 pmWashington, D.C. Dulles Intl
13h 09m
2 stops
ORK10:45 amCork

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 agosto 6, 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

vie. 11/21

10:45 am-6:50 pm

2 stops37h 05m

Washington, D.C. Dulles Intl

jue. 12/4

8:30 pm-11:20 am

2 stops57h 50m

$380

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

vie. 11/21

10:45 am-6:50 pm

2 stops37h 05m

Washington, D.C. Dulles Intl

jue. 12/4

8:30 pm-9:25 am

1 stop31h 55m

$382

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

sáb. 9/6

12:50 pm-3:50 pm

Nonstop8h 00m

Washington, D.C. Dulles Intl

sáb. 9/20

8:25 pm-8:20 am

Nonstop6h 55m

$422

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

jue. 9/4

12:50 pm-3:50 pm

Nonstop8h 00m

Washington, D.C. Dulles Intl

jue. 9/11

5:20 pm-5:10 am

Nonstop6h 50m

$429

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

jue. 11/6

11:30 am-6:20 pm

1 stop11h 50m

Washington, D.C. Dulles Intl

mar. 11/11

7:40 pm-10:15 am

1 stop9h 35m

$438

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

mar. 9/2

2:15 pm-7:20 pm

1 stop10h 05m

Washington, D.C. Dulles Intl

sáb. 9/6

8:30 pm-11:05 am

1 stop9h 35m

$440

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

jue. 8/28

1:05 pm-7:43 pm

1 stop11h 38m

Washington, D.C. Dulles Intl

lun. 9/1

12:13 pm-11:10 am

1 stop17h 57m

$656

CorkWashington, D.C.

ORK - IAD

ORKIAD

Cork

sáb. 10/25

6:00 am-3:35 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

mar. 10/28

7:05 pm-4:45 pm

1 stop17h 40m

$660

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

dom. 9/14

9:30 am-5:30 pm

1 stop13h 00m

Washington, D.C. Dulles Intl

sáb. 9/20

6:30 am-7:30 am

1 stop20h 00m

$685

ShannonWashington, D.C.

SNN - IAD

SNNIAD

Shannon

lun. 9/1

9:30 am-5:30 pm

1 stop13h 00m

Washington, D.C. Dulles Intl

lun. 9/8

5:53 pm-10:15 am

1 stop11h 22m

$687

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, February 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 $461. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $503.

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

Our data shows that Wednesday 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 $708. 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 $821.

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 evening is the least expensive time of day to depart. momondo users have found prices as low as $580 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $793 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 $592 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 $476 on momondo.

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

There are 4 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.

Can stopping save me money on Ireland to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 31% on your flight if you consider stops on a Ireland to Washington, D.C. Dulles Intl Airport flight.

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

$319

Fastest flight time

7h 55m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun
The best one-way flight to Washington, D.C. Dulles Intl Airport from Ireland in the past 72 hours is $319. The best round-trip flight deal from Ireland to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $380.
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 on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Lufthansa, Aer Lingus and Iberia.
  • 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
524 reviews
Search Icelandair flights
Aer LingusPriceFrom $446Free CancellationRating
7.1
1,201 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $569Free CancellationRating
7.4
8,917 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
Gettysburg
Arlington
National Harbor
Winchester
Woodbridge
Laurel
Silver Spring
Tysons
Waldorf
Fredericksburg
Harpers Ferry
Colonial Beach
Manassas
Rockville
Towson
Gaithersburg
Fairfax
Reston
Glen Burnie

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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lun. 8/11
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