The chancellor is due to announce the autumn budget on 27 October.
Tanzer said that despite the more positive outlook for international travel, following the easing of restrictions, "it will take time for travel to get fully back on its feet".
Last month, Abta reportedly wrote to the chancellor urging him to use the budget to provide an update on the additional £1.5bn in targeted support for businesses which was announced earlier this year.
The body also urged local authorities to prioritise travel businesses for financial support under the Additional Restrictions Grant and called on Sunak to provide tailored financial support for the travel sector.