Yes, you can absolutely bring potato chips on an airplane, as they are considered solid food and are permitted by the TSA and most international security agencies in both carry-on and checked luggage. Unlike liquids, gels, or aerosols, chips are not subject to the 3-1-1 rule, so you can bring a single snack-sized bag or a giant "family size" bag without issue. One thing to keep in mind is that the air pressure changes in the cabin can cause the sealed bags to puff up like balloons during flight, which might occasionally lead to the bag "popping" and creating a mess. If you are packing them in a carry-on, try to place them on top of your other items to avoid them being crushed into crumbs by the time you reach your seat. Security officers may occasionally ask you to remove large quantities of snacks from your bag for separate X-ray screening if they appear as a "dense mass" on the monitor, but they will not be confiscated. Bringing your own chips is a popular way to save money on expensive airport snacks and ensure you have a familiar treat during long-haul journeys.