Dublin is Ireland's capital, on the east coast, with its main airport about 10 km north of the centre. Ireland is not part of the Schengen Area, so it has its own entry rules and US visitors can stay up to 90 days without a visa. There is no train to the airport; coaches and buses connect it to the city.
Checking today’s fares with the airlines.
6 miles (10 km) from the city centre. 36.4 million passengers in 2025
| How | Route | Time | Cost |
|---|---|---|---|
| Bus | Dublin Express coach via the Port Tunnel to the city centre (fastest journey quoted) | about 14m | from EUR 8 single, booked online |
US citizens need a valid passport and no visa for tourist stays of up to 90 days in Ireland; Ireland is outside Schengen.
The State Department notes there is no minimum passport validity requirement, though a passport valid for your whole stay is recommended. Carry proof of funds and a return ticket, and be ready to explain your travel plans to immigration officers. EES and ETIAS apply to Schengen countries, not Ireland.
May, September and October are described by a local writer as mild, with long days and fewer crowds. June to August is warmest but pricier and busier.
Busiest: Jun-Aug. Quieter shoulder season: May, Sep-Oct.
| Month | Avg high | Avg low |
|---|---|---|
| Jan | 46.4°F (8°C) | 36.1°F (2°C) |
| Feb | 47.3°F (8°C) | 36°F (2°C) |
| Mar | 50.2°F (10°C) | 37.4°F (3°C) |
| Apr | 54.1°F (12°C) | 39.2°F (4°C) |
| May | 58.6°F (15°C) | 43.9°F (7°C) |
| Jun | 63.9°F (18°C) | 48.2°F (9°C) |
| Jul | 67.1°F (19°C) | 52.3°F (11°C) |
| Aug | 66.4°F (19°C) | 52.2°F (11°C) |
| Sep | 62.4°F (17°C) | 49.1°F (10°C) |
| Oct | 56.5°F (14°C) | 44.8°F (7°C) |
| Nov | 50.5°F (10°C) | 39.7°F (4°C) |
| Dec | 46.9°F (8°C) | 36.7°F (3°C) |
Dublin is served by Dublin Airport (DUB). Dublin Airport handled about 36.4 million passengers in 2025.
US citizens need a valid passport and no visa for tourist stays of up to 90 days in Ireland; Ireland is outside Schengen. The State Department notes there is no minimum passport validity requirement, though a passport valid for your whole stay is recommended. Carry proof of funds and a return ticket, and be ready to explain your travel plans to immigration officers. EES and ETIAS apply to Schengen countries, not Ireland.
May, September and October are described by a local writer as mild, with long days and fewer crowds. June to August is warmest but pricier and busier.
Dublin Express coach via the Port Tunnel to the city centre (fastest journey quoted), about 14 minutes, from EUR 8 single, booked online.
Among the cities we cover, Boston (about 6h 20m), Washington, D.C. (about 7h 25m) and Chicago (about 7h 35m) have nonstop service to Dublin as of October 2026.
Dublin uses the euro (EUR).
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.