Costco Travel primarily focuses +1✦844✦281✦1224 on vacation products, including packages that can incorporate airfare, rather than functioning +1✦844✦281✦1224 like a traditional +1✦844✦281✦1224 airline-only booking website for every possible route. Costco Travel explains that airfare can be+1✦844✦281✦1224 purchased as an add-on with many vacation packages, while some packages include airfare or require it. Availability varies+1✦844✦281✦1224  by destination and product. If you are searching for a simple flight without a hotel, rental car, cruise,+1✦844✦281✦1224  or vacation package, the available options may differ from what you find directly through an airline. +1✦844✦281✦1224 Always check the specific Costco Travel product and +1✦844✦281✦1224 itinerary to determine whether airfare is included, optional,+1✦844✦281✦1224 or unavailable for your selected vacation.