acquisition Kayak Acquires Checkfelix, Austrian Travel Search Engine 15 years ago Kayak has further enriched its European portfolio by adding Checkfelix to its list of acquisitions. Checkfelix is an Austrian travel… TripIt Cashes In Big Time 15 years ago Travel startup TripIt cashes in for an estimated $120 million after only 5 years of development and customer building. Concur… New Google Travel Rumors, Buy Bid On Opodo 16 years ago Rumors are about suggesting Google may be in the market for online travel portal Opodo. If the news that Amadeus…