Tipping for wheelchair assistance in airport

[winterman]

I have requested wheelchair assistance from United. I plan to tip the attendant but don’t know how much is appropriate. I can self transfer. I just can’t walk long distances quickly.

 

[Disneykingofkings]

i only use the wheelchair to the gate and from the gate on return; i tip $10 to the wheelchair person and $5 to the sky priority(delta) checkin person although they try and refuse like disney CMs; but i always win and slide it to them;