An LLC is not a natural person, and is therefore subject to pro market fees*:
http://www.interactivebrokers.com/en/accounts/fees/professionalDefinations.php?ib_entity=llc
Your fees are in the last column in the table at
http://www.interactivebrokers.com/en/accounts/fees/marketData.php?ib_entity=llc
The "US Securities & Commodities Bundle" is not available to pros. You have to pick the individual markets you need. If all you trade is GLOBEX/ECBOT futures contracts, you want "US Commodities", which is free if you have over $30 in commish that month, otherwise $10.
This table might be easier to read if pro and non-pro were two separate tables, instead of all the "Not Applicable" entries.
ES futures commission under the "bundled" pricing plan is $2.40 per side ($4.80 per round-trip).
If you don't carry overnight,
http://www.interactivebrokers.com/en/accounts/fees/futuresPricing2.php?ib_entity=llc says that commissions under the "unbundled" pricing plan start at $2.36 per side for <=300 contracts (150 R/Ts) per month and get better as you do more volume.
Full-size JPY contract (6J on GLOBEX) is $3.00 bundled or $2.82 max unbundled. Mini JPY (J7) is $2.11 bundled, $2.07 max unbundled.
You want unbundled if you don't hold "overnight" much. If you do, you have to add in that $0.10/contract/night. I'm not sure if "overnight" means US calendar days (i.e. through 00:00 ET) or GLOBEX trade days (i.e. through 16:15 ET for the ES). Anyone?
*Somewhere here, there's a thread about the loophole of being able to create an Advisor account as an individual and list the LLC as a client sub-account of it, paying non-pro fees for the Advisor account, since the (individual human) Advisor is the viewer of the market data.
