Normally, Alitalia's offer for South America and Asia has ended, but not for Tokyo. In our searches, the price of 360 EURO is still in the reservation system. As you can see in the image below, the tariff of 360 EURO is confirmed for May and June, and for April it is of 375 EURO.
We simulated for 11-16 June 2015, but there are several days when you find the promotional price.
Bucharest - Tokyo from 360 EURO
In the ticket price you have several services included: one cabin baggage, 2 x 23 Kg hold baggage, seat selection, catering on board and you can collect miles. Alitalia is in the SkyTeam alliance. You cannot change your reservation or request a refund.
A documentary about Tokyo
The stops are made in Rome, and the parking time between flights is relatively short. The flights Bucharest - Rome - Bucharest are operated by Airbus A319 / A321 aircraft. The Rome - Tokyo - Rome segments are operated with Boeing 777-200ER aircraft.
And because you are reluctant about Alitalia, we recommend you read about New Alitalia.