The gathering of aerospace and defense companies will feature each company announcing major moves and orders for new airplanes.
For Airbus, much of the attention will be focused on the company's new A350 XWB, which made its first flight Friday.
Boeing will be countering with the expected announcement it will launch a third, larger edition of 787 Dreamliner.
As is almost always the case, both companies will go to great lengths at the air show to sell the idea their company is winning orders and taking business away from their competitor.
Two Companies Soaring
This year the Paris Air Show comes at a time when both Airbus and Boeing are riding high.
In fact, it's fair to say each company is in the best shape they've ever been in financially.
Both are growing earnings and order books thanks to a global boom in demand for new fuel, efficient planes. Order backlogs for most of the planes built by Boeing and Airbus stretch for years, and in some cases until the end of the decade.
In the historically boom and bust cycle of commercial aviation, Boeing and Airbus are enjoying an upswing some believe could last until the middle of this decade.
Against that backdrop, each company will be justified in saying they see strong prospects for their planes and their businesses.