Align items right inside a flexbox

I'm using bootstrap 4 and this css class, to vertically align my items:

.vertical-align {
  display: flex;
  flex-direction: row;
}

.vertical-align > [class^="col-"],
.vertical-align > [class*=" col-"] {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

In my HTML I have the following:

<div class="row vertical-align">
    <div class="col-md-3">
        <div class="logo">
            <img src="assets/img/logo.png" alt="" class="img-responsive">
        </div>
    </div>
    <div class="col-md-6">
        <div class="catergorias">
            <ul class="list-inline categorias_topo">
                <li class="list-inline-item">
                    <a href="#">Categoria 1</a>
                </li>
                <li class="list-inline-item">
                    <a href="#">Categoria 2</a>
                </li>
                <li class="list-inline-item">
                    <a href="#">Categoria 3</a>
                </li>
                <li class="list-inline-item">
                    <a href="#">Categoria 4</a>
                </li>
            </ul>
        </div>
    </div>
    <div class="col-md-3">
        BUSCA
    </div>
</div>

With this, all this content is aligned to the left.

How can I, for example, align this list (ul > li) on the right?

Nothing is working.

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