Last year was a record year for PrivateFly, the online air charter broker said in announcing the release of its Private Jet Charter Trends 2018 today. The UK-based charter broker didn’t disclose specifics of its 2018 sales but said the year “generated significant continued growth” for the 10-year-old company that was acquired by Directional Aviation in September.

In its report, PrivateFly said London was its busiest destination in 2018; its most popular charter aircraft was the Cessna Citation Mustang; and May 26 was its busiest takeoff day because of a combination of the Cannes Film Festival, Champions League Final, and public holiday weekends in both the UK and the U.S.

This year, PrivateFly CEO Adam Twidell predicts more mergers and acquisitions in the on-demand charter segment, spikes in on-demand charters because of extreme weather events, and a “stir up” in the super-midsize market with the entry into service of Embraer’s Praetor 600 and Textron Aviation’s Cessna Citation Longitude. Moreover, he said, the industry will face a number of regulatory challenges in the U.S. with less than a year before the ADS-B mandate takes effect, as well as in Europe.

“In Europe, Brexit will have a major impact, although exactly how is still unclear,” Twidell said. “Private jet operators need to be able to optimize their flight plans within Europe to make sense commercially. Limitations on inter-European flights will mean more complexity, less choice and—ultimately—customers paying more.”