Cheap flights from Boston to Dublin
from 264 US$
From 585 USD — compare hundreds of airlines
The cheapest month is usually 2026-10 · 264 US$
See prices for my dates →Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from Boston to Dublin, a about 4,808 km route (around 6h 31m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as Aer Lingus, United Airlines operate this route.
When to buy and when to fly
Prices by date
Fares found by date — cheapest days in green.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly Boston to Dublin?
It's usually 2026-10, from 264 USD. Use the price calendar to compare other dates.
How long is the flight from Boston to Dublin?
A nonstop flight takes about 6h 31m and covers around 4,808 km. Connecting itineraries take longer.
Are there direct flights from Boston to Dublin?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Boston to Dublin?
Aer Lingus, United Airlines operate this route, among others. Compare them all in the results.
When should I book Boston–Dublin flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
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