Investors interested in Transportation stocks should always be looking to find the best-performing companies in the group. Has Allegiant Travel (ALGT) been one of those stocks this year? A quick glance at the company's year-to-date performance in comparison to the rest of the Transportation sector should help us answer this question.Allegiant Travel is a member of the Transportation sector. This group includes 131 individual stocks and currently holds a Zacks Sector Rank of #15. The Zacks Sector Rank consid ...