Fastest ~2h10 by train
| 🚆 Train | ~2h10–15 | Enterprise train, Dublin Connolly–Belfast Lanyon Place, every ~2h |
| 🚌 Bus | ~2h30–45 | Goldline coach, Busáras to Europa Buscentre, cheapest |
| 🚗 Car | ~1h50–2h30 | N1/M1, ~165km, open border near Newry, no checkpoints |
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Dublin to Belfast is a cross-border journey between the Republic of Ireland and Northern Ireland — two separate jurisdictions, though EU citizens and most others cross without a passport check at the open border. The distance is about 165 km, and the journey is straightforward by train, bus or car, with plenty of departures throughout the day.
The quickest way: the Enterprise train
The Enterprise service is the flagship cross-border train jointly operated by Irish Rail (Iarnród Éireann) and Translink (the Northern Ireland operator). It runs between Dublin Connolly and Belfast Lanyon Place (formerly Belfast Central) in about 2 hours 10–15 minutes, with multiple departures a day in each direction — roughly every two hours during the day.
Dublin Connolly is in the north inner city, connected to the DART coastal line and Luas trams. Belfast Lanyon Place is close to the city centre, a short walk from the Cathedral Quarter and a few minutes by bus or taxi from Victoria Square. Neither station is as central as you might wish, but neither requires an expensive transfer.
Tickets can be bought at stations, online via Irish Rail or Translink, or by app. There is a first class section on Enterprise trains. Because the route crosses an international border, you will pass through the United Kingdom when leaving or entering Northern Ireland — check UK entry requirements if you are not sure whether your passport or ID card is sufficient.
The cheapest way: Translink Goldline coach
Translink's Goldline coach service runs between Dublin's Busáras (Central Bus Station, behind Connolly) and Belfast's Europa Buscentre on Great Victoria Street, in the heart of the city. Journey time is typically around 2h30–2h45, and fares are often slightly lower than the cheapest train tickets.
Other operators also run on this route, so it is worth checking Aircoach and GoBus for departure times and prices alongside Goldline. If budget is the priority, the bus is the go-to choice. The Europa Buscentre sits right next to Great Victoria Street railway station and the Crown Liquor Saloon — a good start to arriving in Belfast.
Driving: the N1/M1 route
The drive from Dublin to Belfast follows the N1 out of Dublin, which becomes the M1 motorway and continues almost the entire way to the outskirts of Belfast. The distance is around 165 km and the drive takes 1h50–2h30 in average conditions, depending on traffic around Dublin's northern suburbs and the approaches to Belfast.
You will cross the border between the Republic and Northern Ireland somewhere around Newry — there are no checkpoints or passport controls for most travellers at the current open border, though this may be subject to change over the longer term. Be aware that speed limits change: the Republic uses km/h, Northern Ireland uses mph. Also note that UK road rules apply once you enter Northern Ireland, including driving on the left (as in the Republic — so this particular change is invisible).
If you are hiring a car, check that your rental agreement specifically permits cross-border travel between the Republic and Northern Ireland, as some hire companies restrict or charge extra for this. See the guide on cross-border car rental rules for more detail.
Which should you choose?
The Enterprise train is the most enjoyable and convenient option for most travellers: faster than the bus, no parking hassle, and you arrive centrally in both cities. Choose the Goldline coach if you want to save a few pounds and are not pressed for time. Driving makes sense if you are travelling with a group, need a car in Belfast, or want to stop along the way — the Boyne Valley and the towns of County Louth are all en route.
Station orientation at both ends
Dublin Connolly has two distinct halves — mainline platforms for the Enterprise and DART platforms one level below — so allow a few extra minutes if you are arriving by DART or Luas and need to find the correct concourse. Left-luggage facilities are limited, so most travellers heading straight into the city simply carry bags on. Belfast Lanyon Place, by contrast, is a single, compact station: the Enterprise platform sits right beside the Translink NI Railways platforms used for services to Bangor, Portadown and the Antrim coast, so double-check the departure board rather than assuming your platform from a previous visit.
If you are catching an onward Translink NI Railways service — say, to the Causeway Coast or Portrush — Lanyon Place is also the interchange point, so there is no need to cross the city first.
Practical tips for first-time travellers
- Arrive at least 20 minutes before departure on the Enterprise; there is no airport-style security, but platforms can be busy at peak commuter times in both cities.
- Luggage space on the Enterprise is generous by European standards — overhead racks plus end-of-carriage stacks — so a large suitcase is not a problem, unlike on some UK commuter services.
- Mobile signal switches between Irish and UK networks as you cross the border; roaming charges depend on your provider and home country, so check before you travel if you are visiting from outside the EU or UK.
- Both cities are compact enough that most visitors do not need a car once they arrive — Dublin's Luas and bus network and Belfast's Glider and Metro buses cover the main sights.
Common mistakes to avoid
The most frequent misstep is assuming Belfast uses the euro because Dublin does — carry sterling, or a card that handles both currencies without fees, rather than arriving with only euros. Another is underestimating how early Enterprise and Goldline services stop running in the evening; this is not a corridor with late-night departures, so plan your return before booking a late dinner or event. Finally, travellers occasionally confuse Belfast Lanyon Place with Belfast Great Victoria Street (used by some NI Railways services but not the Enterprise) — check your ticket carefully if arranging a pickup.
Frequently asked questions
Do I need a passport to travel from Dublin to Belfast?
There are no passport checks at the open border between the Republic and Northern Ireland under the Common Travel Area. However, Northern Ireland is part of the UK, so check UK entry requirements for your nationality — some non-EU, non-UK visitors need leave to enter the UK even at the land border. It is always wise to carry valid ID or a passport.
How long does the Enterprise train take?
The Enterprise takes about 2 hours 10–15 minutes between Dublin Connolly and Belfast Lanyon Place, running roughly every two hours throughout the day.
Can I use an Interrail or Eurail pass on the Enterprise?
Interrail passes cover travel in both Ireland and the UK. The Enterprise may require a reservation supplement — check the Interrail booking process before you travel. Rail pass holders should verify coverage with Interrail or Irish Rail in advance.
Is there a night train from Dublin to Belfast?
There is no overnight sleeper service. The Enterprise and coach services run until early evening; the last trains and buses return well before midnight. Given the short journey time, an overnight service would not make practical sense.
Sources and further reading:
- Enterprise timetables and booking: Irish Rail (irishrail.ie) and Translink (translink.co.uk).
- Coach services: Translink Goldline and Aircoach.
- Cross-border hire car rules: Viamo's guide to cross-border rentals.
- UK entry requirements: Viamo's UK entry guide.
- Interrail for rail pass coverage across Ireland and the UK.