List some of the tools that I use frequently, you can refer to.
Mileage points management tools: Award Wallet, use Coupon Code:Flyerbbs registered, can be affected by a six-month premium membership
Return ticket check:
Quick Search between the two city mileage required: http://www.economicalexcursionists.com/travelTools/
Two or more cities from the query (applies to BA Miles and jumping tour): gcmap.com