Will flying on a plane hurt sacroilliac fracture and tro hip bursitis? also suffer dvt will this effect flying with fracture what can i do to ease it?

Maybe: First get clearance from your doctor. Ask airline for help getting on plane with wheelchair. Fly first class for more leg room. Take appropriate cushions/pillows for comfort. Take your anticoagulation treatment for the dvt, and wear at least 20-30 mm hg thigh length compression hose. Take your analgesic med prior flying.

It can aggravate it: Prolonged sitting and cramped seating can definitely aggravate a hip bursitis and sacral problems. More importantly it also increases risk for developing dvt. It very important to keep hydrated. It is also helpful for all the above issues to change positions and even try to stand if conditions allow. Flexing your calf muscles frequently also helps to move pooled venous blood in your legs.