A 30-minute connection at Dublin (DUB) — is it enough?
No. 30 minutes are BELOW the 60-minute minimum required at Dublin (DUB) for an international connection. No airline would sell this on a single ticket: it would be required to reroute you. Across twenty thousand scenarios, 1% hold.
Minimum connecting times at Dublin (DUB)
| International → International | 60 min |
| International → Domestic | 90 min |
| Domestic → International | 75 min |
| Domestic → Domestic | 45 min |
| Terminal change | + 20 min |
Do you need a visa to transit at Dublin (DUB)?
Not in the ordinary case. Dublin (DUB), Irlande, has an international zone: connecting from one international flight to another crosses no border, and you have nothing to present to the local authorities. Beware if the onward flight is domestic, though: there you enter the territory, and the entry conditions apply. Special case: Dublin (DUB) hosts a US preclearance facility. A flight leaving it for the United States crosses the AMERICAN border before boarding — immigration, customs, second security screening. Without a valid ESTA or US visa you do not board, and you must allow roughly three quarters of an hour more.
You have 30 minutes for a journey that requires 60 at the strict minimum. No airline would sell this connection on a single ticket: it would be required to reroute you, and it knows it.
The official minimum connecting time database is an IATA commercial product. Our value for Dublin is a curated estimate, not contractual data. The figure that counts is your airline's.
With no prediction for this specific flight, the calculation uses an average delay distribution — roughly one flight in four late, most of them barely. A flight known for being punctual, or for the opposite, will depart from this figure.
This calculation assumes two international flights on a single ticket, with no terminal change and without knowing your passport. Specify them — that is where the verdict really changes.
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