Cheapest€19.43
- BlaBlaCar BB266118:335h 49m00:22Roma TiburtinaCagliari Piazza Matteotti
Door to door 6h 33mCO2 11.1 kgChanges 0Changeable for a fee
Traveling from Rome to Cagliari costs €19.43 at the cheapest and takes 3h 33m door to door at the fastest, across 4 modes and 7 operators. The route covers 418 km. Cheapest is by Coach, fastest is by Train.
At a glance
- Distance
- 418 km
- Fastest
- 3h 33m
- Average
- 6h 20m
- Services per day
- 68
- Cheapest
- €19.43
- CO2 per passenger
- 61.8 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 |
|---|---|---|---|---|---|---|
| Train | 3h 37m | 2h 53m | 44m | €52.59 | 13.6 kg | 12 |
| Flight | 4h 7m | 57m | 3h 10m | €47.34 | 104.3 kg | 32 |
| Coach | 6h 9m | 5h 25m | 44m | €23.28 | 11.1 kg | 12 |
| Ferry | 13h 26m | 11h 56m | 1h 30m | €31.69 | 47.4 kg | 12 |
- 3h 37mFastest, by Train
- €23.28Cheapest, by Coach
- 11.1 kgLowest CO2, by Coach
- 418 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€45.44
- Trenitalia T559010:152h 53m13:08Roma TerminiCagliari
Door to door 3h 37mCO2 13.6 kgChanges 0Refundable
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 Rome to Cagliari | 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 | FriSep 25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coach | €49.68 | €38.68 | €33.73 | €27.68 | €30.98 | €37.03 | €33.18 | €29.88 | €27.13 | €23.28 | €24.38 | €24.93 | €30.43 | €27.68 |
| Ferry | €64.14 | €52.04 | €44.89 | €38.84 | €38.29 | €49.84 | €45.44 | €41.04 | €34.44 | €31.69 | €33.34 | €33.89 | €40.49 | €37.74 |
| Flight | €97.49 | €78.61 | €70.35 | €57.96 | €62.09 | €73.89 | €68.58 | €59.73 | €54.42 | €49.11 | €47.34 | €50.29 | €62.09 | €57.96 |
| Train | €122.44 | €94.94 | €81.19 | €73.49 | €68.54 | €89.99 | €83.39 | €72.94 | €67.44 | €52.59 | €56.44 | €56.99 | €69.64 | €64.14 |
Cheapest day: 2026-09-29 · €19.43
The flight gets you into Cagliari. It does not get you a bed, and neither do we.
Looking for somewhere to stay in Cagliari?
The search opens on Cagliari with your nights already filled in, so it is one step to a real price.
Search Cagliari 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 Rome to Cagliari
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €26.5890 days
- €15.5860 days
- €18.8845 days
- €18.8830 days
- €24.3821 days
- €27.6814 days
- €33.187 days
- €33.733 days
- €49.681 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €15.58.
- How much it moves
- The gap between the cheapest and most expensive lead time is 219 percent. The most expensive point is €49.68, 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.
- €27.13Sun
- €23.28Mon
- €24.38Tue
- €24.93Wed
- €30.43Thu
- €27.68Fri
- €29.88Sat
How the fare moves month by month
The same journey priced on the fifteenth of each of the next six months.
- €27.68Sep
- €21.63Oct
- €19.98Nov
- €19.43Dec
- €19.43Jan
- €16.13Feb
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.
- How far it really runs
- The route covers 418 km against 412 km in a straight line, a detour of 1 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves Rome at 06:01 and the last at 21:14, across 12 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.
Rome
Rail
- Roma Termini
- Ciampino
- Roma Balduina
Bus
- Roma Tiburtina
- Lenin
Air
- FCO
- CIA
Ferry
- Roma Civitavecchia Terminal
- Sant'Angelo
Cagliari
Rail
- Cagliari
- Cagliari railway station
- Cagliari Elmas railway station
Bus
- Cagliari Piazza Matteotti
- Autostazione ARST
Air
- CAG
Ferry
- Cagliari Stazione Marittima
CAG is not in Cagliari, 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 CAG into Cagliari
Settled in advance, so the ride into Cagliari costs what it said it would rather than what the cab stand says.
Book a ride from CAG 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 |
|---|---|---|---|---|---|
 AeroItalia | €42.03 | 4h 7m | 740 km/h | Fixed fare | Not published |
 BlaBlaCar | €19.43 | 6h 8m | 72 km/h | Changeable | Power outlets, Restrooms, Wi-Fi |
 Grimaldi | €25.09 | 13h 24m | 33 km/h | Changeable | Bar, , Cabins, Cafe, Restaurant, Restrooms |
 ITA Airways | €40.85 | 4h 7m | 740 km/h | Fixed fare | Not published |
 Ryanair | €42.62 | 4h 7m | 740 km/h | Fixed fare | Not published |
 Trenitalia | €45.44 | 3h 33m | 140 km/h | Refundable | Power outlets, Wi-Fi |
 VOLOTEA Airways | €42.62 | 4h 7m | 740 km/h | Fixed fare | Not published |
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 | €14.50 | 75% |
| Taxes | €1.45 | 7% |
| Supplier fees | €1.49 | 8% |
| Our service fee | €1.99 | 10% |
| Total you pay | €19.43 | 100% |
The flight gets in hours before any room is ready. Holding a bag is not what we sell.
Somewhere to drop the bags in Cagliari?
Most of the points near Cagliari open before the first train and close after the last one.
Check Cagliari 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 Rome to Cagliari
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 Rome to Cagliari?
The fastest journey from Rome to Cagliari takes 3h 33m door to door, of which 2h 53m is spent moving, on the Train. Most services take around 6h 20m, 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 Rome to Cagliari?
The cheapest fare from Rome to Cagliari is €19.43, checked on September 29, 2026. A typical fare across the next three weeks is €57.96. 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 Rome to Cagliari?
The cheapest way from Rome to Cagliari is by Coach, at €23.28 for one passenger on September 29, 2026. That journey takes 6h 9m 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 Rome to Cagliari?
The fastest way from Rome to Cagliari is by Train, at 3h 37m door to door. Only 2h 53m 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 €52.59.
When should I book Rome to Cagliari?
Fares from Rome to Cagliari bottom out around 60 days before departure, at €15.58. Across the whole booking window the gap between the cheapest and the most expensive lead time is 219 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 Rome to Cagliari?
Monday is the cheapest day to depart from Rome to Cagliari, at €23.28. 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 Rome to Cagliari?
February is the cheapest of the next 6 months to travel from Rome to Cagliari, at €16.13 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 Rome to Cagliari?
7 operators sell services from Rome to Cagliari across 4 modes: AeroItalia, BlaBlaCar, Grimaldi, ITA Airways, Ryanair, Trenitalia. 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 Rome to Cagliari?
Every service we sell from Rome to Cagliari is direct, with around 68 departures a day and a fastest journey of 3h 33m door to door. No connection is needed, so there is no missed connection risk to plan around on this corridor.
How much CO2 does the journey from Rome to Cagliari produce?
Traveling from Rome to Cagliari by Coach produces about 11.1 kg of CO2 per passenger, the lowest of any mode on this corridor. The same journey by Flight produces about 104.3 kg, roughly 9 times as much for one passenger.
Which station or terminal do services from Rome to Cagliari use?
Services from Rome to Cagliari by Train leave from Roma Termini and arrive at Cagliari. 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 Rome to Cagliari?
3 of the 7 operators we sell from Rome to Cagliari 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 Rome to Cagliari on September 11, 2026: 418 km of route against 412 km in a straight line, 68 services a day, 7 operators, a cheapest fare of €19.43, and 3h 33m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
Plenty of what is worth seeing sits outside Cagliari and elsewhere in Italy. None of it is ours to sell.
Anything to book in Cagliari before you go?
Day trips that leave Cagliari in the morning and cover a good part of Italy by evening.
See Cagliari 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 Cagliari
Leaving Cagliari
- 111Places you can leave for
- 21Countries
- 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.