The one catch with using Radisson and any other cruise line for air is that special deals for upgrading to "business class" on an airline with only 2 classes (e.g., Continental's "Business First" and Delta's "Business Elite") are usually not available because these are more expensive than plain vanilla business class on a 3 class airline.
🚢 Cruise with your favorite Keene Luxury Travel Staff Member! 💰 5% KLT Reward plus Shipboard Credit available (amount varies per voyage)! 💲 Offering Enhanced KLT Rewards on voyages hosted by Ngaire & Clay!