Service ceiling of modern combat aircrfat !

The clean aerodynamics often result with excellent altitude capabilities.

Wiki says F-22 goes up to 19,8 km; http://en.wikipedia.org/wiki/Lockheed_Martin_F-22_Raptor

Also the japanese F-2 ( by Mitsubishi ) climbs to 18 000 meters. http://en.wikipedia.org/wiki/Mitsubishi_F-2

SU-35 also excels with 18 000 meters service ceiling; http://en.wikipedia.org/wiki/Sukhoi_Su-35

U-2 was intercepted By RAF Lightning 3 at 20 100 meters; http://en.wikipedia.org/wiki/Lockheed_U-2

Lightning went to 88 000 ft;

In 1984, during a major NATO exercise, Royal Air Force Flight Lieutenant Mike Hale intercepted a U-2 at a height of 66,000 feet (20,100 m), where the aircraft had previously been considered safe from interception. Hale climbed to 88,000 feet (26,800 m) in his Lightning F3.[76]

Lightning 3 had zoom ceiling of 70 000 ft; http://en.wikipedia.org/wiki/English_Electric_Lightning

Does any of them reach 22 km in level flight ?