If you don’t have time to buy a travel-sized version instead of your mondo bottle of saline solution before the next time you fly, don’t sweat it. It’s totally cool to fly with more than 3oz of contact solution, as it is covered under the TSA “liquid medication” provision.
This caveat allows for liquids to be packed in your carry-on bag as long as they are for a medical purpose. You also need to *not* put them in the usual quart-sized bag and should declare them to the security officer when you go through security.
Here’s the verbiage from the TSA’s policy page:
* All prescription and over-the-counter medications (liquids, gels, and aerosols) including petroleum jelly, eye drops, and saline solution for medical purposes;
* Liquids including water, juice, or liquid nutrition or gels for passengers with a disability or medical condition;
* Life-support and life-sustaining liquids such as bone marrow, blood products, and transplant organs;
* Items used to augment the body for medical or cosmetic reasons such as mastectomy products, prosthetic breasts, bras or shells containing gels, saline solution, or other liquids; and,
* Frozen items are allowed as long as they are frozen solid when presented for screening. If frozen items are partially melted, slushy, or have any liquid at the bottom of the container, they must meet 3-1-1 requirements.