Leonardo ExpressorOfficial taxi, fixed fare?

The short answer

For one traveler the Leonardo Express is cheaper by €41. That does not change up to 8 travelers.

The Leonardo Express is quicker: 32 min against 45 min. The Official taxi, fixed fare varies between 40 and 75 minutes.

Leonardo Express: 05:38–23:27. Official taxi, fixed fare: Runs all night.

Priced against each other

Whole-party totals · adult fares

What each costs for the whole party, in EUR. The cheaper of the two is marked on every row.
Travelers	Leonardo Express	Official taxi, fixed fare	Difference
1	€14	€55	€41
2	€28	€55	€27
3	€40	€55	€15
4	€40	€55	€15
5	€54	€110	€56
6	€68	€110	€42
7	€80	€110	€30
8	€80	€110	€30

Side by side

Where each one leaves you

Leonardo Express · TrenitaliaLeonardo Express

From: Fiumicino Aeroporto station, inside the airport — walk from T1 or T3
To: Roma Termini, the main station and transport interchange
Luggage: No luggage limit; racks at the carriage ends.
Runs: 05:38–23:27
Journey: 32 min

Non-stop to Termini only. If you are staying in Trastevere or near Ostiense, the regional FL1 leaves you closer for less.

Leonardo Express: price for every party size

Check times and buy from Trenitalia

taxi · Comune di Roma licensed taxisOfficial taxi, fixed fare

From: Official taxi rank outside each terminal — white cars, "Comune di Roma" on the door
To: Any address inside the Aurelian Walls
Luggage: Included in the fixed fare.
Runs: All night
Journey: 40–75 min

The fixed fare applies only to licensed Rome city taxis and only within the Aurelian Walls. Drivers touting inside the terminal are not the official rank.

Journey time is the least predictable of any option here; Rome traffic decides it.

Official taxi, fixed fare: price for every party size

This compares two of 17 options. See all of them ranked for your party size

Leonardo ExpressorOfficial taxi, fixed fare?

Priced against each other

Side by side

The other comparisons at Fiumicino