Hello:
I am currently building another ex-TYO DONE3 using the Oneworld tool and it is pricing as JPY1,070,980 which is about $7067, which is a lot higher than my current one, also ex-TYO which cost $5600 in Sept 2023.
Looking at the taxes & fees, the largest amount is for Airline Insurance Surcharge of JPY186,320 which is about $1230. I don't remember seeing this item before; is it something new?
I'm fairly sure I am using the same mix of airlines: JL, CX, BA, IB, AA

Thanks.