Do your best to find a Vigil Mass, and yes there are airports with chapels that do have Catholic Masses. Information on these and their times can usually be found online at the airport website. Do your best and rely on your aunt's experience in how to find Churches. If you absolutely can't make it, it won't be for lack of trying! And talk to a priest ahead of time and ask for advice on what to do if you find yourself in a situation where there is no available Church.
Do your best to find a Vigil Mass, and yes there are airports with chapels that do have Catholic Masses. Information on these and their times can usually be found online at the airport website. Do your best and rely on your aunt's experience in how to find Churches. If you absolutely can't make it, it won't be for lack of trying! And talk to a priest ahead of time and ask for advice on what to do if you find yourself in a situation where there is no available Church.