For a smooth departure from IAD, use the Aerotrain to navigate between terminals quickly, but be prepared for long walks from the train to gates.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $353 (oojo) |
One-way from | $224 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $833 |
Good round-trip deal | $684 or less |
Good one-way deal | $432 or less |
Fly from
Fly to
Route
Depart
Return
Price
BaltimoreDublin
BWI - DUB
BWIDUB
Baltimore/Washington
Mon 1/19
7:40 pm-10:15 am
1 stop9h 35m
Dublin
Mon 1/26
11:30 am-6:40 pm
1 stop12h 10m
BaltimoreDublin
BWI - DUB
BWIDUB
Baltimore/Washington
Mon 2/9
7:40 pm-10:15 am
1 stop9h 35m
Dublin
Thu 2/19
11:30 am-6:40 pm
1 stop12h 10m
BaltimoreDublin
BWI - DUB
BWIDUB
Baltimore/Washington
Sun 1/11
8:35 pm-12:15 pm
1 stop10h 40m
Dublin
Tue 1/20
10:55 am-6:45 pm
1 stop12h 50m
BaltimoreDublin
BWI - DUB
BWIDUB
Baltimore/Washington
Wed 1/14
10:05 am-8:10 am
1 stop17h 05m
Dublin
Thu 1/22
10:40 am-9:21 pm
1 stop15h 41m
BaltimoreDublin
BWI - DUB
BWIDUB
Baltimore/Washington
Sun 12/28
6:15 am-8:10 am
1 stop20h 55m
Dublin
Fri 1/16
10:40 am-9:21 pm
1 stop15h 41m
BaltimoreDublin
BWI - DUB
BWIDUB
Baltimore/Washington
Tue 1/20
10:05 am-7:30 am
2 stops16h 25m
Dublin
Tue 1/27
10:40 am-9:21 pm
1 stop15h 41m
Washington, D.C.Dublin
DCA - DUB
DCADUB
Washington, D.C. Reagan-National
Sat 12/27
8:40 pm-7:10 am
1 stop29h 30m
Dublin
Thu 1/15
9:30 am-3:39 pm
1 stop11h 09m
Washington, D.C.Dublin
IAD - DUB
IADDUB
Washington, D.C. Dulles Intl
Sat 1/17
8:30 pm-11:45 am
2 stops34h 15m
Dublin
Sat 1/24
10:10 am-6:50 pm
1 stop13h 40m
BaltimoreDublin
BWI - DUB
BWIDUB
Baltimore/Washington
Mon 2/9
10:05 am-8:10 am
1 stop17h 05m
Dublin
Thu 2/19
9:30 am-9:27 pm
2 stops16h 57m
BaltimoreDublin
BWI - DUB
BWIDUB
Baltimore/Washington
Tue 2/17
10:30 am-7:30 am
2 stops16h 00m
Dublin
Wed 2/25
9:30 am-9:27 pm
2 stops16h 57m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
The price you pay for your flight from Washington, D.C. to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Dublin (average of $232). Flying from Washington, D.C. to Dublin in June is currently the most expensive (average of $469). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from Washington, D.C. to Dublin in the afternoon. Doing so could potentially save you 29% on the flight price compared to flying in the morning, which is usually more expensive.
Travelers seeking maximum savings on their Washington, D.C. to Dublin flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from WAS to DUB are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).
Reykjavik (KEF) – chosen by Cheapflights users on 80% of 1-stop itineraries from Washington, D.C. to Dublin on Cheapflights.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $380.
Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 9h 35m.
Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 44m.
About 20% of weekly flights between Washington, D.C. and Dublin have experienced delays in the past year, with the average delay time being 166 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 16% of flights being delayed.
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Sunderesh,Dec 2025
AUS - EWR
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Sunderesh,Dec 2025
AUS - EWR
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Sunderesh,Dec 2025
AUS - EWR
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Sunderesh,Dec 2025
AUS - EWR
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Sunderesh,Dec 2025
AUS - EWR
Comfort
Crew
Boarding
Entertainment
Overall
Food
Reviews
Sunderesh,Dec 2025
AUS - EWR
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$297 | Average$464 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$371 | Average$625 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$427 | Average$587 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$450 | Average$711 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$456 | Average$497 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$468 | Average$796 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$469 | Average$882 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$477 | Average$673 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$484 | Average$688 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$496 | Average$757 | FlexibilityNo cancel fee | On-time69% |