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Cheap flights from Dublin to Washington, D.C. from $330

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Washington, D.C. departing on 12/4. 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 Dublin to Washington, D.C.

Cheap round-trip flights

Icelandair Logo
11:30 am - 6:30 pmDUB-IAD
12h 00m1 stop
Icelandair Logo
7:40 pm - 10:15 amIAD-DUB
9h 35m1 stop
$398Icelandair
Find Deal
Fri, Dec 5 - Mon, Dec 8
Lufthansa Logo
11:45 am - 9:15 pmDUB-IAD
13h 30m1 stop
Lufthansa Logo
10:20 pm - 10:20 amIAD-DUB
7h 00mnonstop
$400Lufthansa
Find Deal
Thu, Oct 30 - Thu, Nov 6
Scandinavian Airlines Logo
12:30 pm - 5:15 pmDUB-IAD
33h 45m1 stop
Scandinavian Airlines Logo
8:30 pm - 10:00 amIAD-DUB
32h 30m2 stops
$401Scandinavian Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 18
Scandinavian Airlines Logo
7:05 pm - 5:15 pmDUB-IAD
27h 10m1 stop
Scandinavian Airlines Logo
8:30 pm - 10:00 amIAD-DUB
32h 30m2 stops
$402Scandinavian Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 18
Scandinavian Airlines Logo
7:05 pm - 5:15 pmDUB-IAD
27h 10m1 stop
Scandinavian Airlines Logo
8:30 pm - 11:45 amIAD-DUB
34h 15m1 stop
$403Scandinavian Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 18
PLAY Logo
11:35 am - 5:40 pmDUB-BWI
11h 05m1 stop
PLAY Logo
6:50 pm - 10:10 amBWI-DUB
10h 20m1 stop
$414PLAY
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Fri, Oct 3 - Sun, Oct 5
Aer Lingus Logo
12:50 pm - 3:50 pmDUB-IAD
8h 00mnonstop
Aer Lingus Logo
8:25 pm - 8:15 amIAD-DUB
6h 50mnonstop
$445Aer Lingus
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Mon, Oct 13 - Fri, Oct 17
United Airlines Logo
9:50 am - 7:44 pmDUB-DCA
14h 54m1 stop
United Airlines Logo
6:04 pm - 9:45 amDCA-DUB
10h 41m1 stop
$450United Airlines
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Wed, Oct 8 - Mon, Oct 13
United Airlines Logo
12:05 pm - 3:20 pmDUB-IAD
8h 15mnonstop
United Airlines Logo
10:20 pm - 10:20 amIAD-DUB
7h 00mnonstop
$451United Airlines
Find Deal
Wed, Nov 26 - Tue, Feb 24
Aer Lingus Logo
4:35 pm - 7:30 pmDUB-IAD
7h 55mnonstop
Aer Lingus Logo
9:00 pm - 8:50 amIAD-DUB
6h 50mnonstop
$458Aer Lingus
Find Deal
Wed, Oct 1 - Wed, Oct 15

KLM flights from Dublin to Washington, D.C.

Our best KLM deals on Dublin to Washington, D.C. flight tickets
KLM
Nov 25
DUB5:55 amDublin
15h 10m
1 stop
IAD4:05 pmWashington, D.C. Dulles Intl
Nov 30
IAD6:05 pmWashington, D.C. Dulles Intl
17h 15m
1 stop
DUB4:20 pmDublin
$443
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KLM
Nov 1
DUB10:45 amDublin
11h 15m
1 stop
DCA6:00 pmWashington, D.C. Reagan-National
Nov 8
DCA5:00 pmWashington, D.C. Reagan-National
10h 45m
1 stop
DUB8:45 amDublin
$458
Find similar
KLM
Oct 15
DUB12:00 pmDublin
10h 34m
1 stop
BWI5:34 pmBaltimore/Washington
Oct 22
BWI4:44 pmBaltimore/Washington
11h 01m
1 stop
DUB8:45 amDublin
$462
Find similar

Aer Lingus flights from Dublin to Washington, D.C.

Our best Aer Lingus deals on Dublin to Washington, D.C. flight tickets
Aer Lingus
Sep 22
DUB4:00 pmDublin
7h 55m
IAD6:55 pmWashington, D.C. Dulles Intl
Oct 5
IAD8:25 pmWashington, D.C. Dulles Intl
6h 50m
DUB8:15 amDublin
$437
Find similar
Aer Lingus
Oct 13
DUB12:50 pmDublin
8h 00m
IAD3:50 pmWashington, D.C. Dulles Intl
Oct 17
IAD8:25 pmWashington, D.C. Dulles Intl
6h 50m
DUB8:15 amDublin
$445
Find similar
Aer Lingus
Oct 1
DUB4:35 pmDublin
7h 55m
IAD7:30 pmWashington, D.C. Dulles Intl
Oct 15
IAD9:00 pmWashington, D.C. Dulles Intl
6h 50m
DUB8:50 amDublin
$458
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Dublin to Washington, D.C. 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 September 17, 2025.
Use the filters below to find and compare flights from Dublin to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 12/5

11:30 am-6:30 pm

1 stop12h 00m

Washington, D.C. Dulles Intl

Mon 12/8

7:40 pm-10:15 am

1 stop9h 35m

$398

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 10/30

11:45 am-9:15 pm

1 stop13h 30m

Washington, D.C. Dulles Intl

Thu 11/6

10:20 pm-10:20 am

Nonstop7h 00m

$400

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 2/11

12:30 pm-5:15 pm

1 stop33h 45m

Washington, D.C. Dulles Intl

Wed 2/18

8:30 pm-10:00 am

2 stops32h 30m

$401

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-10:00 am

2 stops32h 30m

$402

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-11:45 am

1 stop34h 15m

$403

DublinBaltimore

DUB - BWI

DUBBWI

Dublin

Fri 10/3

11:35 am-5:40 pm

1 stop11h 05m

Baltimore/Washington

Sun 10/5

6:50 pm-10:10 am

1 stop10h 20m

$414

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 10/13

12:50 pm-3:50 pm

Nonstop8h 00m

Washington, D.C. Dulles Intl

Fri 10/17

8:25 pm-8:15 am

Nonstop6h 50m

$445

DublinWashington, D.C.

DUB - DCA

DUBDCA

Dublin

Wed 10/8

9:50 am-7:44 pm

1 stop14h 54m

Washington, D.C. Reagan-National

Mon 10/13

6:04 pm-9:45 am

1 stop10h 41m

$450

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 11/26

12:05 pm-3:20 pm

Nonstop8h 15m

Washington, D.C. Dulles Intl

Tue 2/24

10:20 pm-10:20 am

Nonstop7h 00m

$451

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 10/1

4:35 pm-7:30 pm

Nonstop7h 55m

Washington, D.C. Dulles Intl

Wed 10/15

9:00 pm-8:50 am

Nonstop6h 50m

$458

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 Dublin to Washington, D.C.

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 typical price of a round-trip flight between Dublin and Washington, D.C.?

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

The month of January is, on average, the cheapest month to fly to Washington, D.C. from Dublin, with most prices found around $482. If you’re not able to fly to Washington, D.C. in January, then March is your next best option. Flight prices from Dublin to Washington, D.C. during March average around $507.

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

On average, the least expensive day to fly to Washington, D.C. from Dublin is on a Friday. momondo users have found tickets for Friday departures for as low as $752. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Dublin to Washington, D.C. for around $852.

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

At noon is the cheapest time of day to fly from Dublin to Washington, D.C. when you can find flight prices for as low as $558. Flying to Washington, D.C. at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $815. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Dublin to Washington, D.C. flight route?

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

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

You are more likely to see cheaper flights to Washington, D.C. from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $604 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from Dublin for as low as $474 on momondo.

What cabin class options are available on Dublin to Washington, D.C. flights?

There are 4 cabin classes available to choose from on Dublin to Washington, D.C. 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 Dublin to Washington, D.C. flights?

You could potentially save up to 2% on your flight if you consider stops on a Dublin to Washington, D.C. flight.

How have Dublin to Washington, D.C. flight prices changed over time?

As of September 2025, prices for Dublin to Washington, D.C. flights are approximately 19% more expensive when compared to flights at the same time last year.

When to book flights from Dublin to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Dublin to Washington, D.C. (DUB to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dublin to Washington, D.C.

Best Price Found

$520

Fastest flight time

7h 55m

Direct flights

Every day

Airports in Washington, D.C.

1 airport
The best one-way flight to Washington, D.C. from Dublin in the past 72 hours is $520. The best round-trip flight deal from Dublin to Washington, D.C. found on momondo in the last 72 hours is $724.
The fastest flight from Dublin to Washington, D.C. takes 7h 55m
Direct flights go from Dublin to Washington, D.C. every day.
There is 1 airport near Washington, D.C.: Washington, D.C. Dulles Intl (IAD)
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  • How far is Dublin to Washington, D.C. by plane?

    There are 3379.2 mi between Dublin and Washington, D.C.. A reasonable flight in good conditions will take 7h 55m.

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

    Prices for flights from Dublin Airport to Washington, D.C. are refreshed on a daily basis.

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

  • How old do you have to be to fly from Dublin Airport to Washington, D.C.?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dublin Airport to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The travel and health documents required for your trip to Washington, D.C. 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 license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Dublin to Washington, D.C.?

  • What is the most popular airline from Dublin to Washington, D.C.?

Best airlines flying from Dublin to Washington, D.C.

Compare and see reviews for airlines that fly from Dublin to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $420Free CancellationRating
7.0
545 reviews
Search Icelandair flights
Aer LingusPriceFrom $457Free CancellationRating
7.2
1,277 reviews
Search Aer Lingus flights
United AirlinesPriceFrom $612Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

  • United Airlines Flights From Dublin to Washington, D.C.

    United Airlines operates around 13 flights from Dublin to Washington, D.C. every week. The average price of these flights found in the last 72 hours has been $802, but momondo users have found United Airlines deals from Dublin to Washington, D.C. from as low as $612 round-trip. United Airlines has been scored 7.4/10 in 8,926 reviews.

  • Aer Lingus Flights From Dublin to Washington, D.C.

    Aer Lingus (7.2/10 from 1,277 reviews) operates around 11 flights from Dublin to Washington, D.C. in any given week. The average Aer Lingus airfare for this route is around $657, with deals from around $457 rare but found on momondo. Referenced prices are for round-trip Dublin to Washington, D.C. flight searches in the last 72 hours.

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
National Harbor
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg
Springfield
Linthicum Heights

Why use momondo?

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

It is quick and easy to find Dublin to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

Flights from Dublin 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 Dublin to Washington, D.C.?

Once all potential Dublin to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Dublin and alert you when they change.

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport