DUB - IAD

$441 Find Cheap Flights from Dublin to Washington Dulles Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$563
Typical prices: $579-$798
Aer Lingus
Sat 11/10Mon 11/12
DUB - IAD • Non-stop
Cheapest non-stop
$563
Typical prices: $590-$799
Aer Lingus
Sun 11/11Tue 11/13
DUB - IAD • Non-stop
Advice from real travelers
At DUB, allow three hours for U.S. pre-clearance, especially in busy months.
United Priority Boarding helps secure overhead bin space for carry-on bags.
Expert advice
+1
Expert advice
+1
Nonstop flights
You can fly direct with Aer Lingus and United Airlines. Average duration is 8h 24m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 87% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 19 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 23% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $567 (round-trip)
Shortest trip • 11h 40m (one-way)
Insights
Insights
Start a new search
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Dublin to Dulles Intl (DUB-IAD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dublin to Dulles Intl

Wed, Nov 11 - Fri, Nov 13
Aer Lingus Logo
3:50 pm - 7:20 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 30mnonstop
Aer Lingus Logo
8:50 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 55mnonstop
$563Aer Lingus
Tue, Nov 10 - Fri, Nov 13
Aer Lingus Logo
3:50 pm - 7:20 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 30mnonstop
Aer Lingus Logo
8:50 pm - 8:45 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 55mnonstop
$563Aer Lingus
Tue, Nov 10 - Thu, Nov 12
Aer Lingus Logo
3:50 pm - 7:20 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 30mnonstop
Aer Lingus Logo
5:15 pm - 5:05 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 50mnonstop
$563Aer Lingus
Wed, Nov 11 - Thu, Nov 12
Aer Lingus Logo
3:50 pm - 7:20 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 30mnonstop
Aer Lingus Logo
5:15 pm - 5:05 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
6h 50mnonstop
$563Aer Lingus
Fri, Feb 12 - Mon, Feb 15
Scandinavian Airlines Logo
12:30 pm - 6:50 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
35h 20m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
8:30 pm - 11:45 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
34h 15m1 stop Kastrup Copenhagen
$592Scandinavian Airlines
Wed, Nov 11 - Thu, Nov 12
Multiple Airlines Logo
3:50 pm - 7:20 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 30mnonstop
Multiple Airlines Logo
5:25 pm - 9:20 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
34h 55m2 stops Lisbon Humberto Delgado Madrid Barajas
$592Multiple Airlines
Tue, Nov 10 - Thu, Nov 12
Multiple Airlines Logo
3:50 pm - 7:20 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
8h 30mnonstop
Multiple Airlines Logo
5:25 pm - 9:20 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
34h 55m2 stops Lisbon Humberto Delgado Madrid Barajas
$592Multiple Airlines
Thu, Feb 18 - Thu, Mar 11
Icelandair Logo
11:30 am - 6:30 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:40 pm - 10:15 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
$600Icelandair
Mon, Nov 23 - Mon, Nov 30
Icelandair Logo
11:30 am - 6:30 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:40 pm - 10:15 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
$608Icelandair
Wed, Dec 2 - Wed, Dec 9
Icelandair Logo
11:30 am - 6:30 pmDUB  Dublin-IAD Washington, D.C. Dulles Intl
12h 00m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:40 pm - 10:15 amIAD  Washington, D.C. Dulles Intl-DUB Dublin
9h 35m1 stop Reykjavik Keflavik Intl
$609Icelandair
Booking Insights

Price, demand and travel trends for Dublin to Washington, D.C. Dulles Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Dublin to Washington, D.C. Dulles Intl Airport?

Round-trip flights from Dublin to Washington, D.C. Dulles Intl Airport typically range from $579 to $798. The lowest price found in the past 5 days was $563, on Aer Lingus.

What's the cheapest day of the week to fly from Dublin to Washington, D.C. Dulles Intl Airport?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Dublin to Washington, D.C. Dulles Intl Airport. It’s 7% cheaper than the average day, while Saturday is the most expensive, with prices 5% higher.

What’s the cheapest month to fly from Dublin to Washington, D.C. Dulles Intl Airport?

•November is the cheapest month to fly from Dublin to Washington, D.C. Dulles Intl Airport at $531 round-trip.
•July ($811) and August ($806) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 52% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Dublin to Washington, D.C. Dulles Intl Airport the cheapest?

Flights from Dublin to Washington, D.C. Dulles Intl Airport are cheapest 19 weeks before departure. Booking in this window typically costs about 27% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Dublin to Dulles Intl

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Ramsey Qubein

Ramsey Qubein

Expert on DUB

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Key details for Dublin to Washington, D.C. Dulles Intl Airport flights

Low season

January

Cheapest flight

$441
Beat the crowds with an average 21% drop in travelers.
The most popular month to fly with an average 30% increase in travelers.
One-way flight from Dublin to Washington, D.C. Dulles Intl Airport

When to book flights from Dublin to Dulles Intl

Are your dates flexible? Find out the best times to travel from Dublin to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Flights from Dublin to Dulles Intl: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from Dublin to Dulles Intl 
Verified travelerFlew with Aer Lingus-Aug 2026
Multiple security checks and immigration at Dublin airport so even 2-3 hours of layove is short.
Verified travelerFlew with Aer Lingus-Sep 2024
Allow a full 2 hours for check-in and boarding.

Your Dublin to Washington, D.C. Dulles Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Dublin to Washington, D.C. Dulles Intl Airport?

    These are the earliest and latest flight times available from Dublin to Washington, D.C. Dulles Intl Airport:

    • Earliest: departs at 12:05 pm and lands at 8:29 pm
    • Latest: departs at 3:50 pm and lands at 12:14 am.

    The flight takes about 8h 24m.

  • What cabin classes can I book on flights from Dublin to Washington, D.C. Dulles Intl Airport?

    Three cabin classes are available on flights from Dublin to Washington, D.C. Dulles Intl Airport:

    • Economy Class
    • Business Class
    • First Class

  • How long is a flight from Dublin to Washington, D.C. Dulles Intl Airport?

    A nonstop flight from Dublin to Washington, D.C. Dulles Intl Airport takes 8h 24m, covering 3,393 miles.

  • Do I need a passport to fly from Dublin to Washington, D.C. Dulles Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Dublin to Washington, D.C. Dulles Intl Airport flight?

    Round-trip flights from Dublin to Washington, D.C. Dulles Intl Airport range from $579 to $798, with an average of $692 over the past 12 months. Anything below $579 counts as a good deal.

  • How expensive are last-minute Dublin to Washington, D.C. Dulles Intl Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 11% above the $692 route average. Book 19 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Dublin to Washington, D.C. Dulles Intl Airport?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $567 round-trip via Reykjavik Keflavik Intl (KEF), compared to $700 for nonstop.

  • What is the standard checked-bag allowance on flights from Dublin to Washington, D.C. Dulles Intl Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $27–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Dublin to Washington, D.C. Dulles Intl Airport?

    The Airbus A321neo family is used most often on this route, operated mainly by Aer Lingus and Iberia. Other aircraft seen on the route include Boeing 757-200 variants.

  • How are flight departures from Dublin to Washington, D.C. Dulles Intl Airport spread across the day?

    Afternoon is the busiest departure period on Dublin to Washington, D.C. Dulles Intl Airport flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

  • How are flight prices from Dublin to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from Dublin to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $563, which is 9% below the typical average for this route.

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates averaging $70 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Sixt
    • Thrifty

  • Which airports can I use when flying from Dublin to Washington, D.C. Dulles Intl Airport?

    Flights from Dublin to Washington, D.C. Dulles Intl Airport usually depart from Dublin (DUB) and arrive at Washington, D.C. Dulles Intl (IAD).

  • What time of day has the fewest delays on flights from Dublin to Washington, D.C. Dulles Intl Airport?

    Morning flights have the fewest delays on this route.

  • At what point is a flight considered delayed from Dublin to Washington, D.C. Dulles Intl Airport?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Dublin to Washington, D.C. Dulles Intl Airport route, 13% of flights were delayed in the past 3 months, with delays averaging 2h 32m.

  • Which airports do connecting flights from Dublin to Washington, D.C. Dulles Intl Airport pass through?

    One-stop flights from Dublin to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • Reykjavik Keflavik Intl (KEF) - 48% of one-stop connections
    • London Heathrow (LHR) - 37% of one-stop connections
    • Charlotte Douglas (CLT) - 5% of one-stop connections
    • Frankfurt am Main (FRA) - 3% of one-stop connections

  • Can I save money by using flexible dates for flights from Dublin to Washington, D.C. Dulles Intl Airport?

    Yes. Flexible dates can save you up to 12% on flights from Dublin to Washington, D.C. Dulles Intl Airport. Thursday is the cheapest departure day at $645 round-trip on average, while Saturday is the most expensive at $727, a difference of $82.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Dublin to Washington, D.C. Dulles Intl Airport?

    2 airlines operate flights between Dublin and Washington, D.C. Dulles Intl Airport. The airlines offering nonstop flights on this route include:

    • Aer Lingus
    • United Airlines

  • How much time can I save by choosing a different layover airport from Dublin to Washington, D.C. Dulles Intl Airport?

    Flying via Reykjavik Keflavik Intl (KEF) gives the shortest average 1-stop total travel time at 10h 51m, compared with 11h 40m via London Heathrow (LHR) and 12h 14m via Paris Charles de Gaulle (CDG).

  • What is the time difference between Dublin and Washington, D.C. Dulles Intl Airport?

    Washington, D.C. Dulles Intl Airport is 4 hours behind Dublin (Eastern Time vs Irish Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Dublin to Washington, D.C. Dulles Intl Airport flights?

    Among airlines operating Dublin to Washington, D.C. Dulles Intl Airport flights:

    • Aer Lingus: offers extra legroom; offers free seat selection
    • United Airlines: offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Dublin to Washington, D.C. Dulles Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Aer Lingus: a cabin bag and a checked bag in Economy Class
    • Lufthansa: a cabin bag and a checked bag in Economy Class
    • United Airlines: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • How can I get from Washington Dulles Airport to Washington DC?

    There are several options. You can take the train; it'll get you there in 1h (with one train transfer) for around $11 (under €10). You take a 15min Silver Line Express Bus, which runs to the metro stop Wiehle-Reston East; from there, you can take a train directly into the city in 45min. There are also buses that run directly between the airport and the city; you can get the Metrobus 5A for around $7.50 (under €6.50), which will get you there in under 1h. If you use a taxi, you'll get there in 45min for around $60-70 (around €50-60), or using a ride-sharing app you'll pay around $45 (less than €40).

  • I'm being picked up by someone I know at Washington Dulles. What's a convenient way to meet them?

    Before you arrive, you should get in touch with the person that's picking you up and agree on an Arrival Door (marked 1-7) on the Arrivals Level. The driver should follow signs for Arrivals, then wait in the Cell Phone Lot where they can wait for confirmation that you're ready for them at the Arrival Door — it's not permitted to wait at the Arrival Door, it's only for immediate pick-ups and drop-offs.

Your guide to booking Dublin to Washington, D.C. Dulles Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure and avoid flying on Saturday. On this route, Thursday flights average $645, about $82 less than Saturday fares (11% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 19 weeks before you fly. On this route, that window historically saves about 27% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Dublin to Washington, D.C. Dulles Intl Airport trip for November. Fares historically average $531 round-trip in that month - typically $280 less than the most expensive month, which is July (based on the last 12 months).
  • For the best chance of arriving on time, fly with Aer Lingus. Over the past three months, 87% of Aer Lingus flights from Dublin to Washington, D.C. Dulles Intl Airport arrived on time, slightly above the route average of 87%. When flights on this route arrive late, they're delayed by an average of 2h 32m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through Reykjavik Keflavik Intl Airport (KEF) can be cheaper than flying direct. The cheapest layover option averages $567 round-trip on this route - about $133 less than direct flights (based on the last 12 months).
  • Most hotel shuttles that pick up from Washington Dulles (IAD) are by request. You call them using the free telephones near the restrooms when you land, then cross the street outside Arrivals to find the pick-up spot marked "Hotel Shuttles".
  • Washington Dulles Airport is assisted by Travellers Aid volunteers who serve the multiple information desks around the airport. They're located in every concourse, and in the main Arrivals and Departures areas. They can help you easily navigate the airport if you need assistance.
  • You can get Fast-Track tickets on Dublin Airport's (DUB) website for between €6-8; it'll help you cut the queues when you're going through airport security, and you'll get live flight updates to your phone.

Prefer to fly direct from Dublin to Washington Dulles Airport?

 
Find which airlines fly direct from Dublin Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Dublin to Washington, D.C. Dulles Intl

Monday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Tuesday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Wednesday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Thursday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Friday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Saturday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Sunday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Dublin

Monday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Tuesday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Wednesday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Thursday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Friday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Saturday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

Sunday

Aer Lingus,United Airlines

Aer Lingus,United Airlines

See more direct flights

More options for your flight from Dublin to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental