Cheapest€32.59
- Aer Lingus AL213506:1248m07:00Dublin DUBCardiff CWL
Door to door 3h 58mCO2 74.3 kgChanges 0Fixed, no changes
Traveling from Dublin to Cardiff costs €32.59 at the cheapest and takes 3h 58m door to door at the fastest, across 1 mode and 3 operators. The route covers 302 km. Cheapest is by Flight, fastest is by Flight.
At a glance
- Distance
- 302 km
- Fastest
- 3h 58m
- Average
- 4h
- Services per day
- 22
- Cheapest
- €32.59
- CO2 per passenger
- 74.3 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 29, 2026.
| Mode | Door to door | Moving | At the ends | From | CO2 | Per day |
|---|---|---|---|---|---|---|
| Flight | 3h 58m | 48m | 3h 10m | €36.13 | 74.3 kg | 22 |
- 3h 58mFastest, by Flight
- €36.13Cheapest, by Flight
- 74.3 kgLowest CO2, by Flight
- 302 kmDistance traveled
The cheapest and the fastest on September 29, 2026
Two journeys we can sell today, with the service number each operator files them under.
Fastest€37.90
- Emerald Airlines EA513206:5248m07:40Dublin DUBCardiff CWL
Door to door 3h 58mCO2 74.3 kgChanges 0Fixed, no changes
Lowest CO2€66.81
- Emerald Airlines EA776707:3043m08:13Dublin DUBLiverpool LPL
- Arriva Cross Country AC569509:141h 54m11:08Liverpool Lime StreetCardiff Central
Changes at Liverpool, with 61 minutes between services and a walk of about 14 minutes.
Door to door 5h 35mCO2 63.3 kgChanges 1Fixed, no changes
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 Cardiff | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flight | €69.76 | €63.27 | €59.73 | €44.39 | €43.80 | €44.98 | €55.01 | €43.21 | €44.39 | €41.44 | €37.90 | €36.13 | €38.49 | €46.75 |
Cheapest day: 2026-09-29 · €32.59
The trip ends at Cardiff Central. Everything past the gates belongs to somebody else, the rooms included.
Where to stay in Cardiff
Filter by neighborhood and by nightly price, and the map tells you what is a walk and what is a cab.
Search Cardiff 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 Cardiff
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €34.3690 days
- €31.4160 days
- €31.4145 days
- €33.1830 days
- €37.3121 days
- €46.7514 days
- €55.017 days
- €59.733 days
- €69.761 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €31.41.
- How much it moves
- The gap between the cheapest and most expensive lead time is 122 percent. The most expensive point is €69.76, 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 45 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.
- €41.44Sun
- €37.90Mon
- €36.13Tue
- €38.49Wed
- €46.75Thu
- €43.21Fri
- €44.39Sat
How the fare moves month by month
The same journey priced on the fifteenth of each of the next six months.
- €43.80Sep
- €33.77Oct
- €31.41Nov
- €31.41Dec
- €31.41Jan
- €31.41Feb
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
- 82% of the services we sell on this corridor run through without a change. The remaining 18% involve one connection.
- How far it really runs
- The route covers 302 km against 293 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at Exeter, Bristol, Liverpool, Birmingham. The gap between arriving and leaving is 56 minutes, of which about 14 is walking.
- If the connection is missed
- The tightest connection we sell here has a 17 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 06:12 and the last at 20:12, across 22 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
Cardiff
Rail
- Cardiff Central
- Cardiff Riverside Branch
- Cardiff Bay railway station
Bus
- Cardiff Sophia Gardens
- Cardiff Bus Interchange
Air
- CWL
Ferry
- Cardiff Sailing Centre Pontoons
- City Centre Water Bus Stop
CWL is not in Cardiff, 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 CWL into Cardiff?
Settled in advance, so the ride into Cardiff costs what it said it would rather than what the cab stand says.
Book a ride from CWL 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 |
|---|---|
 Aer Lingus | €32.59 |
| Emerald Airlines | €33.77 |
 Ryanair | €32.59 |
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 | €20.00 | 61% |
| Taxes | €3.60 | 11% |
| Supplier fees | €7.00 | 21% |
| Our service fee | €1.99 | 6% |
| Total you pay | €32.59 | 100% |
We cannot promise Cardiff Central still has a baggage check, because plenty of stations closed theirs.
Where to leave your bags in Cardiff
Stores, cafes and hotels that take luggage, with the hours on the map so you know what is still open when you come back.
Check Cardiff 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 Cardiff
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 Cardiff?
The fastest journey from Dublin to Cardiff takes 3h 58m door to door, of which 48m is spent moving, on the Flight. Most services take around 4h, 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 Cardiff?
The cheapest fare from Dublin to Cardiff is €32.59, checked on September 29, 2026. A typical fare across the next three weeks is €47.93. 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 Cardiff?
The cheapest way from Dublin to Cardiff is by Flight, at €36.13 for one passenger on September 29, 2026. That journey takes 3h 58m 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.
When should I book Dublin to Cardiff?
Fares from Dublin to Cardiff bottom out around 60 days before departure, at €31.41. Across the whole booking window the gap between the cheapest and the most expensive lead time is 122 percent, measured on September 29, 2026. Booking inside the last week has consistently cost more on this corridor.
Which day of the week is cheapest for Dublin to Cardiff?
Tuesday is the cheapest day to depart from Dublin to Cardiff, at €36.13. That is the median of 21 priced departure days across the next three weeks, checked on September 29, 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 Cardiff?
November is the cheapest of the next 6 months to travel from Dublin to Cardiff, at €31.41 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 Cardiff?
3 operators sell services from Dublin to Cardiff across 1 modes: Aer Lingus, Emerald Airlines, Ryanair. 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 Cardiff?
82 percent of the services we sell from Dublin to Cardiff are direct. The rest connect at Exeter, Bristol, Liverpool, Birmingham, with about 56 minutes between the two services. Both legs are sold on one booking, so a missed connection is rebooked at no charge.
Which station or terminal do services from Dublin to Cardiff use?
Services from Dublin to Cardiff by Flight leave from Dublin DUB and arrive at Cardiff CWL. Allow about 3h 10m 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 Cardiff?
0 of the 3 operators we sell from Dublin to Cardiff 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 Cardiff on September 10, 2026: 302 km of route against 293 km in a straight line, 22 services a day, 3 operators, a cheapest fare of €32.59, and 3h 58m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
The flight is the simple part. What you do once you are in Cardiff is somebody else's catalog.
Things to do in Cardiff
Day trips that leave Cardiff in the morning and cover a good part of United Kingdom by evening.
See Cardiff 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 Cardiff
Leaving Cardiff
- 118Places you can leave for
- 15Countries
- 22Operators
Plan a trip from here
Ask Ori for the same corridor under a different constraint, or for a longer trip that starts on it.