As blue is the least common floral color, finding blue and white wedding bouquet pictures can be a bit of chore! However, I've managed to gather a few together to give you some blue bridal bouquet ideas.
Again, keep in mind that true blues are uncommon in the plant kingdom, so if you want bright blue wedding flowers, you will most likely have to use silk flowers or have your florist dye the flowers you wish to use.

A biedermeier is a bouquet that is a more formal variation of the round bouquet. Also called a ring bouquet, it is composed of different colors/types of flowers in ever smaller rings. This beautiful biedermeier has an inner circle of gorgeous blue hydrangeas which are encircled with a ring of white roses. The outer layer is another ring of delicate hydrangea petals.
The addition of deep blue 'Royal Candles' Veronica (Speedwell) lessens the formality of the arrangement and presents a beautiful finishing backdrop for the bouquet.

What a lovely small posy created from beautiful white rose buds and blue flowers (select hydrangeas or hyacinths) and sprinkled with white baby's breath. It's perfect for a bride's bouquet or for your bridesmaids.

Although not a true blue and white wedding bouquet, I just had to add this photo to the page. I love the blending of colors and it's such a simply elegant floral arrangement using hydrangeas and calla lilies. For a more white and blue look, just choose a full blue hydrangea (rather than variegated) and a pure white calla lily combination.

This bridal bouquet really "pops" with it's vibrant royal blue roses contrasted next to the white roses. You'll have to either have your flowers dyed this color or use silk flowers, since roses don't come in this bright blue.

Here's another beautiful wedding bouquet using blue hydrangeas and white calla lilies, interspersed with white roses and a few lime-green flowers (sorry, I don't know what they are).
When you realize you want to spend the rest of your life with somebody, you want the rest of your life to start as soon as possible.
...When Harry Met Sally