Cheap flights from Ireland to Washington, D.C. from $387
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 12/1. 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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Not ready to book? to track prices.Scandinavian Airlines flights from Ireland to Washington, D.C.
Our best Scandinavian Airlines deals on Ireland to Washington, D.C. flight tickets
Aer Lingus flights from Ireland to Washington, D.C.
Our best Aer Lingus deals on Ireland to Washington, D.C. flight tickets
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Use the filters below to find and compare flights from Ireland to Washington, D.C. that are best for you.
Fly from
Fly to
Route
Depart
Return
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Tue 1/19
7:05 pm-5:15 pm
1 stop27h 10m
Washington, D.C. Dulles Intl
Sat 1/30
8:30 pm-6:20 pm
1 stop16h 50m
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Wed 1/20
7:05 pm-5:15 pm
1 stop27h 10m
Washington, D.C. Dulles Intl
Sat 1/30
8:30 pm-6:20 pm
1 stop16h 50m
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Wed 1/20
7:05 pm-5:15 pm
1 stop27h 10m
Washington, D.C. Dulles Intl
Mon 2/1
8:30 pm-6:20 pm
1 stop16h 50m
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Wed 1/20
7:05 pm-5:15 pm
1 stop27h 10m
Washington, D.C. Dulles Intl
Wed 2/3
8:30 pm-6:20 pm
1 stop16h 50m
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Wed 11/18
3:50 pm-7:20 pm
Nonstop8h 30m
Washington, D.C. Dulles Intl
Wed 1/27
5:15 pm-5:05 am
Nonstop6h 50m
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Thu 11/26
11:30 am-6:30 pm
1 stop12h 00m
Washington, D.C. Dulles Intl
Thu 12/3
7:40 pm-10:15 am
1 stop9h 35m
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Thu 11/12
11:30 am-6:30 pm
1 stop12h 00m
Washington, D.C. Dulles Intl
Tue 11/17
7:40 pm-10:15 am
1 stop9h 35m
DublinBaltimore
DUB Dublin - BWI Baltimore/Washington
DUBBWI
Dublin
Tue 11/24
11:30 am-6:40 pm
1 stop12h 10m
Baltimore/Washington
Tue 12/1
7:40 pm-10:15 am
1 stop9h 35m
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Thu 10/29
3:50 pm-8:20 pm
Nonstop8h 30m
Washington, D.C. Dulles Intl
Mon 11/2
5:15 pm-5:05 am
Nonstop6h 50m
DublinWashington, D.C.
DUB Dublin - IAD Washington, D.C. Dulles Intl
DUBIAD
Dublin
Fri 11/27
12:20 pm-3:45 pm
Nonstop8h 25m
Washington, D.C. Dulles Intl
Mon 12/7
5:15 pm-5:05 am
Nonstop6h 50m
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Ireland 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 cheapest month to fly to Washington, D.C.?
The month of November is, on average, the cheapest month to fly to Washington, D.C. from Ireland, with most prices found around $551. If you’re not able to fly to Washington, D.C. in November, then February is your next best option. Flight prices from Ireland to Washington, D.C. during February average around $558.
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 Ireland is on a Monday. momondo users have found tickets for Monday departures for as low as $711. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Ireland to Washington, D.C. for around $858.
What is the cheapest time of day to depart on your flight to Washington, D.C.?
In the afternoon is the cheapest time of day to fly from Ireland to Washington, D.C. when you can find flight prices for as low as $712. Flying to Washington, D.C. in the afternoon 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 $796. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Ireland to Washington, D.C. flight route?
Fly from Dublin to Washington, D.C. Dulles Intl for the best Ireland - Washington, D.C. flight prices
How far in advance should I book a flight from Ireland to Washington, D.C.?
You are more likely to see cheaper flights to Washington, D.C. from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $682 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 Ireland for as low as $552 on momondo.
What cabin class options are available on Ireland to Washington, D.C. flights?
There are 2 cabin classes available to choose from on Ireland 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.
How often are flights from Ireland to Washington, D.C. delayed?
Historically, on average around 13% of flights between Ireland and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 147 minutes.
What is the most punctual flight time for Ireland to Washington, D.C. flights?
Generally, flights departing in the evening tend to experience fewer delays. Flights in the early afternoon 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 which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.
Which airline has the best punctuality record on Ireland to Washington, D.C. flights?
According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.
How many flights depart from Ireland to Washington, D.C. on average per day?
As of October 2026, there are 12 flights per day flying from Ireland to Washington, D.C.. The most common time of day flights depart is 12:00PM, with 85% of flights taking off in the afternoon.
How many flights depart from Ireland to Washington, D.C. on average per week?
84 flights are operational weekly from Ireland to Washington, D.C. as of October 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.
Cheap Ireland to Washington, D.C. flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to Washington, D.C.
Frequently asked questions about flying from Ireland to Washington, D.C.
When did momondo last update prices for flights from Ireland to Washington, D.C.?
Prices for flights from Ireland to Washington, D.C. were last updated today.
How many operators does momondo search for flights from Ireland to Washington, D.C.?
The number of operators available for flights from Ireland to Washington, D.C. is 2 as of October 2026.
How old do you have to be to fly from Ireland to Washington, D.C.?
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 layovers 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 Ireland to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. 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.. 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.?
Based on momondo bookings for flights between Ireland and Washington, D.C., the leading plane model is Airbus A321neo, making up 41.55% of the total bookings. Other popular models include Boeing 757-200 with 20.49%, Airbus A330-300 with 14.07%, and Airbus A321-100/200 with 10.48%.
Best airlines flying from Ireland to Washington, D.C.
Compare and see reviews for airlines that fly from Ireland to Washington, D.C. with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $438 | Free Cancellation | Rating 6.9 758 reviews | |||
| PriceFrom $455 | Free Cancellation | Rating 7.3 1,826 reviews |
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ireland to Washington, D.C.?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to Washington, D.C.. momondo saves you time and could save you money on your trip.
Can I find flights from Ireland to Washington, D.C. with flexible booking policies on momondo?
Yes. All flights to Washington, D.C. from Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Ireland to Washington, D.C.?
Once all potential Ireland 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 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.