I’ve cancelled American AAdvantage award tickets and Delta SkyMiles tickets for travel in the next month and neither program charged their usual mileage redeposit fee. These fee waivers are normally in place for top tier elite frequent flyers, but where a ‘no change fee’ fee waiver applies to travel, the redeposit fee for mileage tickets has been waived as well.
Not so with United, although that finally seems to have changed.