Apologies in advance if this is the wrong sub-forum.

I am trying to figure out the best miles/points redemption for LAX-CCU (Kolkata, India) in Feb of next year. Other than LAX, SNA and SAN are also close-by to where I live.

Dates: Feb 1 to Feb 24.

Points/Miles I have:
AA: 166k (self) + 82k (wife)
UA: 54k
BA avios: 50k (self) + 50k (wife)
Chase UR: 155k
Citi TY: 70k (self) + 64k (wife)

Homework that I have done so far:

1. On AA website: LAX-BOM-LAX (via LHR): 90k miles + $663; need to do BOM-CCU-BOM separately
2. On BA website: LAX-BOM-LAX (via LHR): 50k avios + $1300; need to do BOM-CCU-BOM separately
3. On UA website: LAX-CCU - LAX: 80k miles + $50
4. On Chase UR website: LAX-CCU-LAX on Emirates: 130k points (but I get to earn miles?)
5. On TYP network (Citi):LAX-CCU-LAX on Emirates: 115k points ( but I get to earn miles?)

Any other creative ideas, especially using Avios? I can't seem to be able to route it away from LHR which racks up too many fees. All the dates I tried have BA availability so the website won't even show me partner airlines.