Originally Posted by davewang202

https://www.united.com/web/en-US/con...2012-03-03.pdf

I've not heard of co-pay for GPU except for the case of flights out of LHR.

Originally Posted by valor155

https://www.united.com/web/en-US/con...e-pricing.aspx

No copay on gpus as of right now. Use the above link to and interactive chart link there to figure out the cost in terms of miles and $$$

Originally Posted by IADFlyer123

Check https://www.united.com/web/en-US/app...ardTravel.aspx for amount of miles+copay as mentioned above