I have the same, stage 3 non small cell lung cancer (nsclc).  Suspected in late January, confirmed during surgery at the end of March. It was locally advanced, in the lymph nodes in the centre of my chest, but no other locations. I'm in my late 60s.

My surgeon removed all the cancer he could find. I'll likely have chemo to try to knock out any cancerous cells floating about in the lymph system. There is still a possibility that I'll be cured. I may even have been cured by the surgery already, though it's unlikely.

Unfortunately there are no guarantees with this disease, but I am hoping for a good few more years even if it does advance.  Some cancer is suitable for immunotherapy if it does reappear (if it has a high PD-L1 expression), so there will still be options.

I was reading on this forum about a lady who had stage 4 lung cancer (spread to other organs) and she lived for many years with it.

Has your dad had any tests or treatment yet? If he's had surgery, it's not unusual to cough some blood, though it didn't happen to me. 

I'm a never-smoker. If your dad smokes it would make sense to stop.

My dads health is pretty bad, his copd is not good, he has been getting out of breathe, he used to smoke recently he has stopped.

They might offer him chemo but it all depends on how healthy he is.

His constantly a sleep and not with it...he has not had any operations, only the biopsy on his lymph node...but he was bleeding weeks before that.

He has the cancer on his left lung and lymph nodes in his neck.

His bleeds more than a couple of table spoons a day...his legs hurt...

But thanks for responding 

I’m 62 andI have stage 3 nsclc and have just finished chemoradiotherapy 3 cycles and 30 radiation sessions, starting immunotherapy next month had ct scan just to make sure everything ok and it’s not spread, good news not spread and so far tumour has shrunk by half, fingers crossed all goes well .