Can i still have lung surgery if my bronchitis is flaring up?

No: In general surgery should be postponed until you have been afebrile for 48-72 hours and are on the road to recovery. Lung surgery should not be done while a patient is ill with acute bronchitis or flares of chronic bronchitis due to an increased risk of postoperative complications.

Maybe not...: It depends on many factors including your oxygen level. In general, your surgeon and anesthesiologist would want you as close to your baseline as possible, especially for a routine procedure. If the procedure is emergent, then there is increased risk doing the procedure during a flare but they may need to proceed anyway in an emergency. The decision is made by the surgeon and anesthesiologist.