Travelers comparing Moby and Tirrenia prices for the Civitavecchia–Olbia ferry in 2026 need to know one crucial detail before opening multiple booking tabs: the direct Civitavecchia–Olbia route is currently operated by Tirrenia, not by Moby. Moby and Tirrenia belong to the same shipping group and share a booking ecosystem, which can make search results look like a two-company comparison even when the ship operating this particular route carries the Tirrenia brand.

That means there is no meaningful same-route “Moby versus Tirrenia” fare contest for Civitavecchia to Olbia at present. The useful comparison is between the Tirrenia fare from Civitavecchia and Moby’s alternative routes to Olbia, especially Livorno–Olbia, after factoring in driving distance, fuel, tolls, departure time, accommodation and whether you are taking a car.

Who operates Civitavecchia–Olbia in 2026?

Current official Moby and Tirrenia route pages both identify Tirrenia as the carrier on Civitavecchia–Olbia. The service operates year-round, with daytime crossings listed at roughly 7 to 7 hours 30 minutes and overnight crossings around 7 hours 30 minutes to 8 hours. citeturn0search0turn0search2

Moby’s own Sardinia route list makes the division clear: Moby operates Livorno–Olbia year-round and Genova–Olbia seasonally, while Civitavecchia–Olbia is shown under Tirrenia. citeturn0search12

This is why a traveler may begin on the Moby website, select Civitavecchia and Olbia and ultimately see a Tirrenia sailing. It is not necessarily a booking mistake; the brands are marketed together and the Moby site sells the Tirrenia route.

Why there is no single Civitavecchia–Olbia price

Official booking pages do not publish one fixed fare for the route. Tirrenia states that the displayed fare can vary according to departure date, departure time and how full the ship is. The advertised price is calculated per person for a one-way trip, while the final cost changes substantially when vehicles and accommodation are added. citeturn0search0turn0search2

For a realistic comparison, travelers should enter the same passenger ages, vehicle dimensions, dates and accommodation choice each time. A quote for one adult with deck passage is not useful for estimating the price for two adults, an SUV and a private cabin.

Cabins can make overnight crossings considerably more expensive than a basic seat or deck accommodation, but they may replace the cost of a hotel night. Conversely, a cheap passenger fare can become a much larger total once a car is included, particularly on busy summer dates.

When Moby becomes a real alternative

If you are flexible about the mainland port, Moby becomes relevant. Its Livorno–Olbia service runs throughout the year, with official 2026 schedules listing daytime crossings around 7 hours 50 minutes to 9 hours and overnight crossings around 9 hours. citeturn0search0turn0search12

For travelers starting in northern or central Italy, Livorno may therefore deserve a price check. For someone already in Rome or Lazio, however, a lower ferry fare from Livorno could be cancelled out by the additional drive north, motorway tolls, fuel and time.

Moby also operates Genova–Olbia seasonally in 2026, but that route is much less relevant for someone beginning a journey in Rome. The best mainland port is therefore not necessarily the one with the cheapest ferry ticket; it is the one with the lowest practical door-to-door cost.

Promotions complicate the comparison

Both brands advertise promotional fares and offers, and these can change according to travel date and availability. As of September 2026, the group is promoting a voucher scheme under which qualifying Moby and Tirrenia tickets purchased by 30 September 2026 for eligible departures can generate a voucher equal to 20% of the qualifying ticket amount, excluding specified taxes, ETS charges, supplements, insurance, meals and other fees. The voucher has route and travel-date restrictions and is subject to allocated availability. citeturn0search2turn0search13

A voucher should not be confused with an immediate 20% reduction on the sailing being purchased. Its value depends on whether you will actually make another eligible trip before the voucher expires.

There are also resident and Sardinian-native fares and other promotions. Visitors should not compare a promotional resident quote with an ordinary tourist fare unless they genuinely meet the eligibility conditions.

Compare the final checkout price, not the headline fare

The most reliable way to compare ferry costs is to build a complete booking before payment. Include every passenger, the exact vehicle category and dimensions, pets if applicable, and the accommodation you actually intend to use. Then note the final total before optional insurance or extras.

For an overnight crossing, compare the price of a cabin with the alternative cost of a hotel plus a daytime sailing. For a car journey, add the mainland drive to the port. If Livorno saves €40 on the ferry but requires significantly more fuel, tolls and driving from Rome, it may not be cheaper overall.

Ticket flexibility also has financial value. Current base-fare conditions for both Moby and Tirrenia include a €15 administrative charge for certain changes, plus any fare difference, and cancellation penalties that increase closer to departure. Under the published base conditions, cancellation carries a 10% penalty up to 30 days before departure, 20% from 29 to 7 days, 50% from 6 days to 48 hours, and no refund within 48 hours; fees and charges are not refundable. Travelers should check the conditions attached to their exact fare because promotional tickets can have different restrictions. citeturn0search7turn0search8

Car travelers should arrive earlier

For Civitavecchia–Olbia, Tirrenia currently instructs passengers traveling with a vehicle to present themselves for boarding within 90 minutes of departure. Passengers without a vehicle should arrive at least one hour before departure from 1 June to 30 September, or at least 30 minutes before departure from 1 October to 31 May. citeturn0search4

All passengers, including minors, need a valid original identity document. The route uses electronic check-in in the area in front of the ship at Civitavecchia. citeturn0search4

So which company should you compare?

For a traveler who specifically wants to sail Civitavecchia–Olbia, search Tirrenia’s current fare for the exact travel date. Checking the Moby booking site can lead to the same Tirrenia-operated crossing rather than a competing Moby ship.

If price is the priority and the mainland departure port is flexible, then run a second quote for Moby’s Livorno–Olbia route using exactly the same passengers, vehicle and accommodation. Compare the final totals and add the cost of reaching each port.

This approach avoids the most common mistake in a “Tirrenia vs Moby” search: comparing two brand names instead of two genuinely different itineraries. In 2026, Civitavecchia–Olbia is the Tirrenia option; Moby becomes the alternative when you are willing to change the mainland port.