Are your travel benefits under Cape air lines or United airlines? If under Cape then your travel companion will probably be able to only fly on Cape air flights. If you use united benefits (if you are concidered a regional carrier for united) then your companion will be able to fly on all united flights, including flights operated by other regional carriers. I just eent to the Cape Air website, because you can purchase tickets from Cape air then you are not a regional flyer for united. I would guess that your companion will only be able to fly on Cape Air flights.

You really need to check with your travel office for specifics.

Tony