Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Dublin
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
Icelandair flights from Washington, D.C. Dulles Intl Airport to Dublin
Our best Icelandair deals on Washington, D.C. Dulles Intl Airport to Dublin flight tickets
Aer Lingus flights from Washington, D.C. Dulles Intl Airport to Dublin
Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to Dublin flight tickets
See travel insights to Dublin from
How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Dublin
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 Washington, D.C. Dulles Intl Airport and Dublin?
What is the cheapest month to fly to Dublin?
If you aren’t able to travel during the month of January, then book flights to Dublin from Washington, D.C. Dulles Intl Airport during March instead. Flights to Dublin in March, while not as cheap as those in January, still average around €511.
What is the cheapest day to depart on your flight to Dublin?
Our data shows that Tuesday is the least expensive day to fly to Dublin. Tickets to fly out on this day can be as low as €619. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around €844. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.
What is the cheapest time of day to depart on your flight to Dublin?
Our data shows that the cheapest Washington, D.C. Dulles Intl Airport to Dublin flights are usually those with departure times in the evening. Our users have found flights to Dublin in the evening for as low as €621. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are €681 on average. Flights to Dublin from Washington, D.C. Dulles Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Washington, D.C. Dulles Intl to Dublin flight route?
Fly from Washington, D.C. Dulles Intl to Dublin for the best Washington, D.C. Dulles Intl - Dublin flight prices
How far in advance should I book a flight to Dublin?
You are more likely to see cheaper flights to Dublin from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around €610 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Washington, D.C. Dulles Intl Airport for as low as €534 on momondo.
What cabin class options are available on Washington, D.C. Dulles Intl to Dublin flights?
There are 2 cabin classes available to choose from on Washington, D.C. Dulles Intl to Dublin 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 Washington, D.C. Dulles Intl Airport to Dublin flights?
You could potentially save up to 58% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Dublin flight.
How have Washington, D.C. Dulles Intl Airport to Dublin flight prices changed over time?
As of July 2025, prices for Washington, D.C. Dulles Intl Airport to Dublin flights are approximately 10% more expensive when compared to flights at the same time last year.
How many flights depart from Washington, D.C. Dulles Intl Airport to Dublin on average per day?
The number of flights available between Washington, D.C. Dulles Intl Airport and Dublin is 12 per day as of July 2025. The most frequent departure time is 22:00, with 75% of daily flights leaving in the evening.
How many flights depart from Washington, D.C. Dulles Intl Airport to Dublin on average per week?
86 flights are operational weekly from Washington, D.C. Dulles Intl Airport to Dublin as of July 2025. The most popular departure day for this route is Tue, with 16% of flights per week taking off on this day.
When to book flights from Washington, D.C. Dulles Intl Airport to Dublin
Cheap Washington, D.C. Dulles Intl Airport to Dublin (IAD to DUB) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Dublin
How far is Washington, D.C. Dulles Intl to Dublin by plane?
Washington, D.C. Dulles Intl and Dublin are 5461.9 km apart from one another. Typically, this will take 6h 50m by plane in normal conditions.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Dublin Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Dublin Airport are refreshed on a daily basis.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Dublin Airport?
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 Washington, D.C. Dulles Intl Airport to Dublin Airport.
What documentation or ID do you need to fly to Dublin Airport?
The necessary travel and health documents for your Dublin Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Dublin?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. Dulles Intl Airport to Dublin is Boeing 757-200, representing 31.04% of all bookings. The subsequent popular models are Airbus A321neo at 20.65%, Boeing 777 at 12.20%, and Boeing 777-300ER at 8.71%.
Travelling to a place near Dublin?
Book flights to Dublin if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Dublin?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Dublin. momondo saves you time and could save you money on your trip.
Can I find flights from Washington, D.C. to Dublin with flexible booking policies on momondo?
Yes. All flights to Dublin from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Washington, D.C. to Dublin?
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 from Washington, D.C. to Dublin.
I’m not ready to book a flight from Washington, D.C. to Dublin right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Dublin, momondo offers a useful price alert feature which will track prices for flights to Dublin from Washington, D.C. and alert you when they change.