Airfares which are necessary to reach a medical treatment facility are deductible as Medical expenses.
In TurboTax, you can enter all medical expenses in any of the sub-sections or tabs of medical expenses. TurboTax will add up all sub-sections and transfer the total medical expenses to Schedule A. The headings are only provided as a reminder for you to claim all categories of medical expenses. The detailed categories are not transmitted to the IRS. You should keep those details in your tax records.