Orbitz has reported increases across room nights, net revenue and gross bookings for the period ended March 31, 2015.

As the online travel agency edges closer to being part of Expedia, it no longer issues guidance or an analysts call to discuss results.

Orbitz revealed at 13% increase in room nights year-on-year, a slight increase in gross bookings to $3.2 billion and net revenue up 5% to just over $220 million.

Standalone hotel revenue for the company increased 25% to almost $84 million, air revenue was down 10% to about $63 million and earnings from vacation packages was also down, by 8% to about $30 million.

The online travel agency reports gains in transaction volumes for hotel, air and car, as well as its acquisition of assets and contracts of Travelocity Partner Network last year saying they all contributed to the increase in net revenue.

Expedia announced its $1.6 billion acquisition of the company in mid-February, and the deal is still to be finalised following requests for information from the Department of Justice.

In March, the pair issued a statement saying they were cooperating with a second Justice Department request and describing it as a 'standard phase of the regulatory process.'

During its own recent earnings presentation, Expedia chief Dara Khosrowshahi reaffirmed cooperation with the DOJ and indicated the integration of Orbitz would take some time after the completion of the report because of the complexity of the business.

Further reading:

How the Orbitz-Expedia deal came together

How the Expedia-Orbitz deal could have happened five years ago