I'm going to be travelling to Europe (and Israel) for work over the next few months. I'm starting to book some flights and am trying to determine if I can use miles to upgrade myself to business class (my company will only pay for coach).
Is there any easy way to determine if upgrade seats are available? I'm calling each airline and asking about every possible segment, which is tedious.
Are there any airlines that tend to be better regarding upgrades? I'm focusing on United and Delta, just because they seem to offer the best flights to Israel from Portland.
Apprecite any help.