We stopped here in a pinch. They have a gluten free bun but I’m nervous with chains. But the manager was there and when asked about gluten free he explained the whole system, how they use separate tools, regular buns are toasted in a toaster and gluten free buns are the only bread that goes on the grill. He even offered that the fries were not in a dedicated fryer before we asked. It wasn’t busy and based on his knowledge I felt safe. It was a good burger, the bun got really mushy (probably rice based) but was nice in a pinch, no reaction. I’m not sure how I would feel about all locations but this one is a safe location for me.
Most Shake Shack locations offer gluten-free buns for burgers. A lettuce wrap is also an option.
They use a separate space to prepare the gluten free burgers. You get gluten free buns. When you put your order in the kiosk you can label what allergies you have. A manager came out to tell me that they can’t guarantee the fries are gf because they cycle the oil sometimes.
Located in Terminal C, take a right (towards gates C23-36). Was able to order a cheeseburger with a GF bun (pretty thin but did not fall apart!). They entered it as a gluten allergy and I asked them to change their gloves. The bun is toasted separately on the grill instead of in the toaster oven. I did not feel overly safe, but thankfully did not get sick. Nothing too special but nice to have an option in the airport.