From $62,000 hotel suites to race packages with six-figure price tags , the Singapore Grand Prix is a windfall for businesses near the Marina Bay track. But the money isn't staying in Singapore. Data shows travelers are also spending across Asia before and after the three-day Formula One race, which begins Friday. Flight bookings analyzed by marketing platform Sojern indicate that, among those with onward trips, a quarter of Americans and Canadians are adding trips to Japan, 18% of Europeans