Originally Posted by windsock

For my 50th we are flying CW Brussels->Heathrow->Los Angeles->Honolulu (& back) early August '10 on one (paid for) BA booking (thank you FT).

I believe I can check in for the first two flights (dep 10.00 & 12.00) at the same time (24h before first flight), but we've got a Layover at LAX (so we can visit the best Bloody Mary bar in the world*). The final flight LAX-HNL (with AA) departs 19h after we land at LAX (34h after first flight).

Can I check in for this at the same time? (Is it via the BA site or do I get automatically linked to AA?)

If I can't check in for the third sector, can I do this when I get to LAX at a check in machine or is there an easier way?

Happy Birthday. Check online with AA, they do pre-assign seats.

* the best we found on our RTW 2 years ago (around the world in 18 days)