Probably closer to twice as much. Business class flights for returns within a few days are usually around $4000-6000. This will again allow same-day returns and

Probably closer to twice as much. Business class flights for returns within a few days are usually around $4000-6000. This will again allow same-day returns and would probably go for closer to $8k-$10k return. Capacity will be extremely limited, there are >1000 business class seats/day just out of Heathrow to JFK.