United MileagePlus (Consolidated) - Booked F award but whole itinerary not in F--free change to F later if available?

I booked a one-way award flight from ORD-YYZ-COZ in business, but only the first segment is actually in business class. If I see that award availability has opened up later, can I call United to have them upgrade that segment without a fee?

Or does the $75 fee listed in this chart (http://www.united.com/web/en-US/content/mileageplus/awards/travel/ticketing.aspx) apply?

Thanks!

I booked a one-way award flight from ORD-YYZ-COZ in business, but only the first segment is actually in business class. If I see that award availability has opened up later, can I call United to have them upgrade that segment without a fee?

Or does the $75 fee listed in this chart (http://www.united.com/web/en-US/content/mileageplus/awards/travel/ticketing.aspx) apply?

Thanks!

Not sure if fee will apply but you can call them to put you on the waitlist for C now since you paid for it already.

Not sure if fee will apply but you can call them to put you on the waitlist for C now since you paid for it already.

The segment is on a partner, so is waitlisting still an option?

The segment is on a partner, so is waitlisting still an option?

Nope. You will just need to keep an eye out for F space.

The segment is on a partner, so is waitlisting still an option?

No.

Also no fee as the ticket is already booked in the premium class. You'll have to stalk the AC award inventory (or set up an alert tool (http://boardingarea.com/blogs/thewanderingaramean/2012/04/star-alliance-award-search-and-free-alerts/)) and then call in should it become available.