These quality vendors can also advise about bloom times if you're seeking to brighten up the winter. They know their stock, and can help you on specific needs there too. Something that's fairly impossible to determine just from looking up parentage, since hybrids can favor one parent or the other (which can also be complex on a hybrid) or bloom twice or more, the people who know the plants will know their habits.
Look here on Orchid Board for people growing in areas near you, or with similar climates. You can look at the photos they post of their plants and see when they flower.
__________________ May the bridges I've burned light my way.