Originally Posted by
ycp81
Be warned not to have excess check-in luggage. SQ may accept your excess luggage for free but AI/IC may require you to pay for the excess luggage for the SIN-MAA sector when you reached SIN. Have witnessed it happened a few times to passengers.
That is incorrect.
When you check in at LAX, you will checked thru to final destination along with your luggage allowance which is 2 pieces at 23kg each.
As long as your ticket includes travel to/from US, all sectors will have the same baggage allowance including the AI/IC sectors.