You can earn a few sats with a decent amount of BTC via routing the payment but when you calculate the running cost probably it will end up as a net loss, so don't set up LN with the intention of making money.
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How much money can you make on running a Lightning Network node?Unless you have a lot of coins, your earnings won't be enough to cover both hardware and maintenance costs. If you are already running a full node to support the network then a small Lightning node won't put much stress on your hardware.
I have been running
a small node (6 channels; ~0.10 BTC capacity) for about 3 months now. I earned over 500 satoshi in the first month during which I was experimenting a lot with my fee settings for each channel. In the second and the third month I earned ~110 and ~160 satoshi respectively without paying much attention to my node. If you want to see up-to-date stats, check out
The Lightning Network node experience thread.
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