Cheap flights from Boston to Dublin
The cheapest round trip from Boston to Dublin that travelers found recently is $499 with a carry-on: a $499 fare on Aer Lingus, which usually includes a carry-on. It leaves Thu, Oct 15 and comes back Tue, Oct 20.
Live prices for Thu, Oct 15 to Tue, Oct 20
Cheapest trips travelers found recently
| Leave | Return | Airline | Airports | Stops | Fare | Carry-on (est.) | Total | Live prices |
|---|---|---|---|---|---|---|---|---|
| Thu, Oct 15 | Tue, Oct 20 | Aer Lingus | BOS → DUB | Nonstop | $499 | Included | $499 | Live price |
| Thu, Nov 26 | Mon, Nov 30 | Air Canada | BOS → DUB | 1 stop | $520 | Included | $520 | Live price |
| Sun, Oct 18 | Fri, Oct 23 | JetBlue | BOS → DUB | Nonstop | $667 | Included | $667 | Live price |
Round-trip prices per person, from real fares travelers found in the last few days. Carry-on fees are our estimate for each airline, both ways. Prices change fast: check the live price before you book.
Cheapest month to fly
| Month | Cheapest trip | From | Live prices |
|---|---|---|---|
| October 2026 | Thu, Oct 15 to Tue, Oct 20, 5 nights | $499 | Live price |
| November 2026 | Thu, Nov 26 to Mon, Nov 30, 4 nights | $520 | Live price |
Bag fees on this route
What the airlines flying Boston to Dublin usually charge for one bag each way. Budget airlines often sell the cheapest fares and charge the most for bags, so compare the total, not the fare.
| Airline | Carry-on, each way | Checked bag, each way |
|---|---|---|
| Aer Lingus | Included | Included |
| Air Canada | Included | Included |
| JetBlue | Included | Included |
Our estimates: fees depend on the fare type and when you pay. Check the airline's own price when you book.
How these prices work
These are real round-trip fares that travelers found on Aviasales recently, not a live search, so they can change or sell out. Dipt adds an estimate of each airline's carry-on fee, so a cheap fare with expensive bags doesn't look cheaper than it is. "Live price" opens Dipt's live flight search for those dates, where you book with the airline or travel site you pick. Dipt may earn a commission when you book, at no extra cost to you (how Dipt makes money).
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