Chongqing Jiangbei International Airport is in Yubei District.
Tips
memory
渝 is the one-character abbreviation for Chongqing (it appears on every Chongqing license plate: 渝A, 渝B...). So 渝北 = "north of Chongqing" = the district north of the Jialing River. Pair it with 渝中 (central Chongqing, the old downtown peninsula).