Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Ireland
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Fly to
Route
Depart
Return
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Mon 18/1
17:50-17:50
1 stop19h 00m
Dublin
Wed 27/1
06:15-16:20
1 stop15h 05m
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Mon 18/1
17:50-17:50
1 stop19h 00m
Dublin
Wed 27/1
06:15-16:20
1 stop15h 05m
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Wed 4/11
09:55-18:25
2 stops27h 30m
Dublin
Wed 11/11
06:15-20:23
2 stops19h 08m
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Mon 18/1
17:50-17:50
1 stop19h 00m
Dublin
Thu 28/1
06:15-16:20
1 stop15h 05m
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Tue 17/11
09:55-23:20
3 stops32h 25m
Dublin
Wed 25/11
06:15-20:23
2 stops19h 08m
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Wed 20/1
18:30-12:40
2 stops13h 10m
Dublin
Fri 29/1
10:45-21:12
2 stops15h 27m
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Mon 9/11
09:55-19:55
2 stops29h 00m
Dublin
Wed 18/11
06:15-20:23
2 stops19h 08m
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Wed 11/11
09:55-23:20
3 stops32h 25m
Dublin
Wed 18/11
06:15-20:23
2 stops19h 08m
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Sun 8/11
19:40-10:15
1 stop9h 35m
Dublin
Tue 17/11
11:30-18:30
1 stop12h 00m
Washington, D.C.Dublin
IAD Washington, D.C. Dulles Intl - DUB Dublin
IADDUB
Washington, D.C. Dulles Intl
Tue 10/11
12:32-07:45
1 stop14h 13m
Dublin
Sun 22/11
10:45-17:28
1 stop11h 43m
See travel insights to Ireland from
How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Ireland
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 Ireland?
The month of November is another great option to travel to Ireland, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around €568.
What is the cheapest day to depart on your flight to Ireland?
The cheapest day to depart on your flight to Ireland is on a Friday when prices can be found for as low as €735. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around €796. These prices are subject to change though, so be sure to set up a Price Alert for flights to Ireland.
What is the cheapest time of day to depart on your flight to Ireland?
In the afternoon is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Ireland when you can find flight prices for as low as €697. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Ireland is in the evening when prices are around €794.
What is the cheapest Washington, D.C. Dulles Intl to Ireland flight route?
Fly from Washington, D.C. Dulles Intl to Dublin for the best Washington, D.C. Dulles Intl - Ireland flight prices
How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Ireland?
You are more likely to see cheaper flights to Ireland from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €714 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Washington, D.C. Dulles Intl Airport for as low as €633 on momondo.
What cabin class options are available on Washington, D.C. Dulles Intl Airport to Ireland flights?
There is only 1 cabin class available to choose from on Washington, D.C. Dulles Intl Airport to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How often are flights from Washington, D.C. to Ireland delayed?
Historically, on average around 12% of flights between Washington, D.C. and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 181 minutes.
What is the most punctual flight time for Washington, D.C. to Ireland flights?
Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.
What day of the week experiences the fewest flight delays on this route?
Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.
Which airline has the best punctuality record on Washington, D.C. to Ireland flights?
According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.
How many flights depart from Washington, D.C. Dulles Intl Airport to Ireland on average per day?
The number of flights available between Washington, D.C. Dulles Intl Airport and Ireland is 13 per day as of October 2026. The most frequent departure time is 17:00, with 65% of daily flights leaving in the evening.
How many flights depart from Washington, D.C. Dulles Intl Airport to Ireland on average per week?
The number of flights available between Washington, D.C. Dulles Intl Airport and Ireland is 97 per week as of October 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.
Cheap Washington, D.C. Dulles Intl Airport to Ireland flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Ireland
Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Ireland
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Ireland?
Prices for flights from Washington, D.C. Dulles Intl Airport to Ireland are updated daily.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Ireland?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Ireland.
What documentation or ID do you need to fly to Ireland?
The travel and health documents required for your trip to Ireland 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 licence, and a passport valid for six-months after you plan to arrive at Ireland. 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 Washington, D.C. Dulles Intl Airport to Ireland?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Ireland, the leading plane model is Boeing 757-200, making up 25.64% of the total bookings. Other popular models include Airbus A321neo with 23.86%, Boeing 777 with 14.42%, and Airbus A321-100/200 with 8.66%.
Why use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to Ireland?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Ireland. momondo saves you time and could save you money on your trip.
Can I find flights from Washington, D.C. to Ireland with flexible booking policies on momondo?
Yes. All flights to Ireland 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 Ireland?
momondo provides multiple filters to help you find the best flight to Ireland from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Washington, D.C. to Ireland right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Washington, D.C. to Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.