PARIS (REUTERS) - Air fares have fallen as much as 30 per cent since the start of the year in North America and Europe, according to the first of a new series of industry data, while stabilising on a smaller decline in Asia where some coronavirus lockdowns are being eased.

The figures from Skytra, an Airbus-owned airline hedging business, offer early clues to the difficult recovery awaiting airlines as they prepare for an eventual lifting of restrictions on what is likely to be a changed travel market.

After flatlining for weeks, forward bookings show small improvements for May travel between Asia and Europe or North America, and positive US domestic reservations for the winter holidays. But they are still down more than 75 per cent on last year.

The data sends a more ominous signal on fares - days after Ryanair boss Michael O'Leary predicted that a traffic rebound would be driven by heavy discounting.

"That's what we're seeing now," said Mr Matthew Tringham, strategy and product chief at Skytra, which was launched last year to offer revenue-hedging services to airlines.

Skytra's figures show Asia pricing in decline since February, followed by a slump in the United States and Europe last month that is steeper and ongoing, as airlines slash fares on the few flights still running.

The findings reflect a rolling average of economy fares on departed flights within each region that were booked over the preceding month, drawing on data for 83 per cent of air travel by value.

"As the Covid-19 crisis took hold we saw prices soften in most markets, as any remaining capacity in service is being discounted," Skytra said in a report.

"While the Asia-Pacific market seems to have bottomed out about 15 per cent lower than could be expected for this period, we can see that the trend in North America and Europe continues with prices down 30 per cent and 25 per cent, respectively."

As of April 8, average yields - a proxy for fares expressed in revenue per passenger km - had dropped to 10.7 US cents in North America from 15 cents a year earlier, and to 14 cents in Europe from 19.4 cents. In Asia-Pacific they fell to 9.6 cents from 11.8.

Apart from the Asian intercontinental and US holiday reservations, there is little sign of any revival in forward bookings, Skytra's Mr Tringham said in an interview. "Europe is not showing any green shoots right now."