The 900XP shares the same large mid-size cabin for which the Hawker is renowned, the largest cross-section in its class according to Hawker Beechcraft, owner of the Hawker aircraft.
Headroom throughout the cabin is 1.75m, when measured from the aisle floor. The standard interior seats eight in a club forward arrangement with a three-seat divan and single seat aft.
An optional six-place configuration is available, with more luggage space and a single seat replacing the standard configuration's divan.
One unique entertainment feature offered to passengers is a glareshield-mounted cockpit camera. Looking forward through the windscreen, the camera allows passengers to see in real time what the pilots are seeing.
While offering 17.6m3 (620ft3) of cabin volume and the longest length (7.37m) of the three, the Sovereign has the smallest diameter cross-section.