Jet_bridge never seemed to be developed or defined for common use. But id think it would be best to use it as a way centered within the corridor area like footways with areas also have a way for routing proposes. This is what I would propose as a solution. Way: ‪G14‬ (‪1111590323‬) | OpenStreetMap

highway=corridor is an indoor mapping feature which can be viewed here OpenLevelUp!

The gate numbers displayed at the ends of the jet bridge I found is better for gates with multiple numbers. A good example at Ohare would be gate M21-M23. It also helps separate the gate numbers better for rendering.