Cheapest€16.84
- Irish Rail IR257814:161h 4m15:20Dublin HeustonBelfast Lanyon Place
Door to door 1h 48mCO2 4.7 kgChanges 0Refundable
Traveling from Dublin to Belfast costs €16.84 at the cheapest and takes 1h 47m door to door at the fastest, across 2 modes and 3 operators. The route covers 144 km. Cheapest is by Train, fastest is by Train.
At a glance
- Distance
- 144 km
- Fastest
- 1h 47m
- Average
- 2h 49m
- Services per day
- 8
- Cheapest
- €16.84
- CO2 per passenger
- 20.3 kg
Every way to make this journey
Journey times below are door to door, so they include getting to the terminal and away from it at the other end. Fares are the cheapest we currently sell on September 28, 2026.
| Mode | Door to door | Moving | At the ends | From | CO2 | Per day |
|---|---|---|---|---|---|---|
| Train | 1h 48m | 1h 4m | 44m | €21.79 | 4.7 kg | 4 |
| Flight | 3h 46m | 36m | 3h 10m | €31.41 | 35.9 kg | 4 |
- 1h 48mFastest, by Train
- €21.79Cheapest, by Train
- 4.7 kgLowest CO2, by Train
- 144 kmDistance traveled
The cheapest and the fastest on September 28, 2026
Two journeys we can sell today, with the service number each operator files them under.
Today's real departures
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modeled until our booking connectors are live.
No live timetable for this trip yet.
Live from the operators' own published timetables, through the open transit feeds they publish. Times and services are real. Fares are modeled until our booking connectors are live.
Prices over the next three weeks
Live from our own engine, refreshed on every request. The cheapest days for each way of traveling are marked.
| Cheapest fare by mode and day for Dublin to Belfast | FriSep 11 | SatSep 12 | SunSep 13 | MonSep 14 | TueSep 15 | WedSep 16 | ThuSep 17 | FriSep 18 | SatSep 19 | SunSep 20 | MonSep 21 | TueSep 22 | WedSep 23 | ThuSep 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Train | €38.84 | €44.89 | €27.84 | €33.89 | €32.23 | €27.84 | €25.09 | €28.39 | €24.54 | €29.48 | €23.99 | €21.79 | €22.34 | €25.64 |
| Flight | €35.54 | €37.90 | €31.41 | €31.41 | €31.41 | €31.41 | €31.41 | €31.41 | €31.41 | €31.41 | €31.41 | €31.41 | €31.41 | €31.41 |
Cheapest day: 2026-09-28 · €16.84
That is the traveling done. What happens after you walk out into Belfast is not something we sell.
Where to stay in Belfast
Filter by neighborhood and by nightly price, and the map tells you what is a walk and what is a cab.
Search Belfast on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book Dublin to Belfast
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €20.6990 days
- €12.9960 days
- €16.2945 days
- €17.9430 days
- €22.8921 days
- €25.6414 days
- €25.097 days
- €27.843 days
- €35.541 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €12.99.
- How much it moves
- The gap between the cheapest and most expensive lead time is 174 percent. The most expensive point is €35.54, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Book now Fares on this route are lowest around 60 days ahead. You are inside that window.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €27.84Sun
- €23.99Mon
- €21.79Tue
- €22.34Wed
- €25.09Thu
- €28.39Fri
- €24.54Sat
How the fare moves month by month
The same journey priced on the fifteenth of each of the next six months.
- €31.41Sep
- €20.69Oct
- €16.84Nov
- €15.74Dec
- €18.49Jan
- €16.29Feb
The route
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- Direct or connecting
- 50% of the services we sell on this corridor run through without a change. The remaining 50% involve one connection.
- How far it really runs
- The route covers 144 km against 142 km in a straight line, a detour of 1 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Drogheda, Dundalk, Douglas, Derry. The gap between arriving and leaving is 61 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 16 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves Dublin at 06:29 and the last at 14:16, across 4 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Dublin
Rail
- Dublin Heuston
- Dublin Connolly
- Dublin Pearse railway station
Bus
- Dublin Busaras
- Busáras
Air
- DUB
Ferry
- Dublin Ferryport
- Dublin Port Terminal 1
Belfast
Rail
- Belfast Lanyon Place
- Queen's Quay, Belfast
- Belfast Grand Central station
Bus
- Belfast Europa Buscentre
- Belfast Grand Central Station
Air
- BFS
- BHD
Ferry
- Belfast Ferry Terminal
- Belfast Cruise Terminal
BFS is not in Belfast, and the drive in from it is the part of the trip nobody plans. We sell the flight and stop at the terminal door.
Getting from BFS into Belfast
A price agreed before you fly, a driver at arrivals, and a car big enough for the bags.
Book a ride from BFS with Welcome PickupsOr check Daytrip
Partner links. We do not operate transfers. We earn a commission on a booking, and the fare is the same as going direct.
Who runs this route
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From | Fastest | Typical speed | Flexibility | On board |
|---|---|---|---|---|---|
 Aer Lingus | €31.41 | 3h 46m | 740 km/h | Fixed fare | Not published |
| Emerald Airlines | €31.41 | 3h 46m | 740 km/h | Fixed fare | Not published |
 Irish Rail | €16.84 | 1h 47m | 140 km/h | Refundable | Power outlets, Wi-Fi |
What the fare is made of
Every part of the total, so the number at checkout is the number here.
| Part | Amount | Share |
|---|---|---|
| Operator fare | €13.50 | 80% |
| Taxes | €1.35 | 8% |
| Our service fee | €1.99 | 12% |
| Total you pay | €16.84 | 100% |
We cannot promise Belfast Lanyon Place still has a baggage check, because plenty of stations closed theirs.
Baggage storage near Belfast Lanyon Place
Most of the points near Belfast Lanyon Place open before the first train and close after the last one.
Check Belfast on StasherOr try Bounce
Partner links. We do not run these networks. We earn a commission on a booking, and the price is the same as going direct.
Questions about Dublin to Belfast
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does it take to get from Dublin to Belfast?
The fastest journey from Dublin to Belfast takes 1h 47m door to door, of which 1h 4m is spent moving, on the Train. Most services take around 2h 49m, because that average includes slower stopping services and journeys with a connection. Times include reaching the terminal and leaving it at the far end.
How much does it cost to travel from Dublin to Belfast?
The cheapest fare from Dublin to Belfast is €16.84, checked on September 28, 2026. A typical fare across the next three weeks is €31.41. Both figures are the total for one passenger, including taxes, supplier fees and our service fee, so nothing is added at checkout.
What is the cheapest way to get from Dublin to Belfast?
The cheapest way from Dublin to Belfast is by Train, at €21.79 for one passenger on September 28, 2026. That journey takes 1h 48m door to door. Cheaper is rarely faster on this corridor, and the comparison table on this page shows what each mode costs against what it saves.
What is the fastest way to get from Dublin to Belfast?
The fastest way from Dublin to Belfast is by Train, at 1h 48m door to door. Only 1h 4m of that is spent moving; the remaining 44m is reaching the terminal and leaving it at the far end. The cheapest fare on that mode is €21.79.
When should I book Dublin to Belfast?
Fares from Dublin to Belfast bottom out around 60 days before departure, at €12.99. Across the whole booking window the gap between the cheapest and the most expensive lead time is 174 percent, measured on September 28, 2026. Booking inside the last week has consistently cost more on this corridor.
Which day of the week is cheapest for Dublin to Belfast?
Tuesday is the cheapest day to depart from Dublin to Belfast, at €21.79. That is the median of 21 priced departure days across the next three weeks, checked on September 28, 2026. Shifting a departure by one day is usually worth more than shifting the booking by one week.
Which month is cheapest for Dublin to Belfast?
December is the cheapest of the next 6 months to travel from Dublin to Belfast, at €15.74 for one passenger. Each month is priced on its fifteenth, so the comparison is like for like rather than a mix of weekends and midweek departures.
Who runs service from Dublin to Belfast?
3 operators sell services from Dublin to Belfast across 2 modes: Aer Lingus, Emerald Airlines, Irish Rail. Journey times, fares and fare conditions differ between them, and the operator table on this page compares all of them on speed, flexibility and what is provided on board.
Is there a direct service from Dublin to Belfast?
50 percent of the services we sell from Dublin to Belfast are direct. The rest connect at Drogheda, Dundalk, Douglas, Derry, with about 61 minutes between the two services. Both legs are sold on one booking, so a missed connection is rebooked at no charge.
How much CO2 does the journey from Dublin to Belfast produce?
Traveling from Dublin to Belfast by Train produces about 4.7 kg of CO2 per passenger, the lowest of any mode on this corridor. The same journey by Flight produces about 35.9 kg, roughly 8 times as much for one passenger.
Which station or terminal do services from Dublin to Belfast use?
Services from Dublin to Belfast by Train leave from Dublin Heuston and arrive at Belfast Lanyon Place. Allow about 44m in total for reaching the departure terminal and leaving the arrival one, which is already included in every door to door time on this page.
Can I change or refund a ticket from Dublin to Belfast?
1 of the 3 operators we sell from Dublin to Belfast allow a change or a refund. A change on a changeable fare costs €5.00. The operator table on this page names which is which, and the condition is shown again before you pay.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon, Distances
- On this page
- Every figure above was computed for Dublin to Belfast on September 10, 2026: 144 km of route against 142 km in a straight line, 8 services a day, 3 operators, a cheapest fare of €16.84, and 1h 47m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
Our job ends at the platform. What fills the days in Belfast afterward does not belong to us.
Things to do in Belfast
Timed entry, guided walks and half-day trips out of Belfast, with free cancellation on most of it.
See Belfast on GetYourGuideOr browse Viator
Partner links. We do not sell tours or tickets. We earn a commission on a booking, and it never changes the price.
Other ways to make this journey
Arriving in Belfast
Leaving Belfast
- 86Places you can leave for
- 28Countries
- 31Operators
Plan a trip from here
Ask Ori for the same corridor under a different constraint, or for a longer trip that starts on it.