What are typical insurance costs for airliners?
for personal airplanes(like a Cessna),


  Expect to pay anywhere from $600 per year and up depending on the airplane, your time in type and total hours.


source (http://www.planeviz.com/cost-of-aircraft-ownership-ep-9/)

while there are no estimates (that i can find) about the really big commercial airplanes like the 747, there are estimates available for smaller airplanes like the G650 (  )

the estimate for this plane in insurance is 60,000 USD per year

source (https://www.quora.com/What-are-the-yearly-maintenance-and-total-overhead-charges-for-a-65-million-Gulfstream-G650)