Trip Advisor's first-quarter loss narrowed on higher revenue.

The online travel operator posted a quarterly loss of $11 million, or 8 cents a share, compared with a loss of $59 million, or 43 cents a share, a year earlier. Analysts polled by Factset had expected a loss of 17 cents a share.

On an adjusted basis, Trip Advisor posted earnings of 14 cents a share. Analysts had been expecting adjusted earnings of 3 cents a share.

First-quarter results included pretax restructuring and reorganization costs of $10 million related to the Tripadvisor unit.

Revenue rose slightly to $398 million, compared with analyst expectations of $386 million. While Trip Advisor's namesake unit reported an 8% drop in revenue, Viator's revenue rose 10% during the quarter. The company said the quarter had stable trends in hotel offerings.