Roujiamo, liangpi, and yogurt all show up under the “Xi'an Snacks” label at XIY, but you’re dealing with multiple small stalls, not one flagship restaurant.
Most stands tagged as Xi'an Snacks sit airside in T2 and T3, near mixed fast-food clusters by mid-30s gates and domestic departure waiting areas, serving grab-and-go portions of local dishes at mid-range prices (think ¥25–¥45 for a roujiamo, ¥15–¥25 for yogurt).
You’ll usually see the same core trio: roujiamo (肉夹馍), cold skin noodles liangpi (凉皮), and bottled or cup-style yogurt, with menus printed in Chinese and scattered English; one Trip.com comment singles out the yogurt as “very delicious,” which tracks with locals saying dairy is the safest bet here.
Set expectations below city level: reviews on Chinese sites compare these stalls against famous Xi’an spots like Tong Sheng Xiang and Lao Mi Jia and say airport prices run roughly 20–40% higher while portions feel smaller and flavors muted, especially for the liangpi and meat in the roujiamo.
Regular Xi’an flyers on local forums say they eat their main meal in town and treat airport Xi'an Snacks stands like a top-up stop, grabbing a single yogurt or drink 30–40 minutes before boarding instead of committing to a full ¥60–¥80 spread of “tourist-grade” versions of the classics.
Watch out for lukewarm food that’s been sitting; multiple comments mention pre-made roujiamo and liangpi held under heat lamps near gate seating in T3, so ask for a fresh-pressed bun or skip it and spend ¥15–¥20 on chilled yogurt from the same counter instead.
Tip: if you want one last Xi’an bite without gambling on quality, hit a Xi'an Snacks stall inside security in T3, grab sealed yogurt for the plane, and leave serious roujiamo and noodles for your next trip into the city proper.