Do I have to pay anything extra for upgrading a booking using Business Rewards Miles? If yes, how do I pay?

Traveling to some destinations may incur additional taxes or charges for upgrading to a higher class. When upgrading your booking you will be informed of any additional amounts to pay. The extra taxes or charges must be paid for online by credit card during the upgrade process.

Do I have to pay anything extra when upgrading my booking using Skywards Miles?

Can I pay partly with Business Rewards Miles and partly cash to reduce the fare and/or Miles needed?

Do I have to pay anything extra when I upgrade my booking using Skywards Miles?