Seems I can't get a clear answer on this one...

Had some miles expire in July, but had a couple inter-island flights in May that I never credited anywhere. These were on a separate ticket, but nested in UA ticket (but credited those miles to AC).

It's about 10K miles that expire... not many by some standards, but if the HA miles can save them... I'll put them in UA.

Any ideas on this one?

Thanks.