Your next trip, last seen at €242
Lowest observedWhen to fly
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Lowest observed
- €242, departing 16 Oct 2026 (Last checked: 7 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 13Check live prices for this route
- Airlines seen
- Aer Lingus, Air Canada, British Airways, Delta Air Lines, Iberia, Icelandair +3 more
- Reported fastest flight
- 6h
- Non-stop
- Yes
About this route
Explore the fares we observed from Boston to Dublin. Prices move often, so pick your dates to see the latest options.
- Route distance
- 4,809 km
- Reported fastest flight
- 6h
- Airlines seen
- Aer Lingus, Air Canada, British Airways, Delta Air Lines, Iberia, Icelandair +3 more
- Alternative airports
- PSM
Route-level information; individual journeys vary.
Published schedules report non-stop service with Aer Lingus. Check current timetables.
A clearer picture of your fare
Non-stop airlines seen on this route
| Airline | Non-stop days / priced days | Fastest non-stop |
|---|---|---|
| Aer Lingus | 3 / 13 |
Departure days with a non-stop fare checked in the last 14 days. A carrier listed here had a non-stop fare on at least 3 days; schedules may differ.
Airport to city: straight-line distance
- Portsmouth International Airport at Pease (PSM) → Boston, city gazetteer reference point (42.3584, -71.0598): ≈ 82 km.
- Dublin Airport (DUB) → Dublin, city gazetteer reference point (53.3498, -6.2603): ≈ 9 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by days before departure
Lowest fare from Boston to Dublin by days until departure (0 to 7 days): €242 (checked 7 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €242 | 4 |
| 8 to 30 days | €260 | 3 |
| 61 days or more | €248 | 5 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Lowest one-way fare we saw per airline
Cheapest airline from Boston to Dublin: British Airways, from €255 (checked 6 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| British Airways | €255Feb 18, 2027 | 5 |
| Aer Lingus | €262Jan 24, 2027 | 4 |
| Delta Air Lines | €262Mar 17, 2027 | 3 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from Boston to Dublin?
The lowest fare we have observed is €242, found on 7 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Boston to Dublin?
In our observations October 2026 is the cheapest month so far, at €242.
Are there direct flights from Boston to Dublin?
Yes. We have seen non-stop flights on this route, flown by Aer Lingus.
Which airlines fly from Boston to Dublin?
These are the carriers we have seen on the route: Aer Lingus, Air Canada, British Airways, Delta Air Lines, Iberia, Icelandair +3 more.
How many of the observed Boston to Dublin fares were non-stop?
6 of the 8 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
Which airlines had non-stop offers on at least 3 departure dates from Boston to Dublin?
For Boston to Dublin, examples of observed one-way non-stop offers checked within the last 14 days: Aer Lingus (3). Each number counts distinct departure dates, not weekly flights; check current availability in search.
Which airline has the lowest fare from Boston to Dublin?
Cheapest airline from Boston to Dublin: British Airways, from €255 (checked 6 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
Keep exploring
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Recently observed fares. Prices may change.
Last checked: 7 Oct 2026