I've booked a lot on Regent, over 5,000 nights, including being Titanium myself, and I would NEVER book without deviation. It is the best money you can spend due to the complete mess the airlines are in. Not only will you have access to your preferred flights, but if you buy through Regent, they will back you up and help you get to the ship in the event of an emergency. Who wants to go on an expensive cruise only to arrive at the ship stressed and tired due to multiple connections or other nonsense?