大日本帝国陆军航空本部
Dai-Nippon Teikoku Rikugun Kōkū Hombu
The Imperial Japanese Army Air Service (often called the Imperial Japanese Army Air Force (大日本帝国陆军航空队、大日本帝国陆军航空部队 Dainippon Teikoku Rikugun Kōkūtai,Dainippon Teikoku Rikugun Kōkūbutai?) (IJAAS or IJAAF), was the land-based aviation force of the Imperial Japanese Army. As with the IJA itself, the IJAAF was developed along the lines of Imperial German Army Aviation so its primary mission was to provide tactical close air support for ground troops while maintaining a limited air interdiction capability. The JAAF also provided important reconnaissance support for the Army. However, the Army Air Service usually did not control the light aircraft or balloons deployed and operated by the IJA artillery battalions as spotters or observers. Although the Army Air Service engaged in limited strategic bombing of major Chinese cities such as Shanghai and Chongqing in the early stages of the Second Sino-Japanese War, this was not its primary mission, and it lacked the heavy strategic bombers as were later deployed by the United States Army Air Forces. The Imperial Japanese Navy Air Service was responsible for long-range strikes and strategic air defense and it was not until the later stages of the Pacific War that both services attempted anything like integrated air defense.
陆军飞行战队（りくぐんひこうせんたい、陆军飞行战队）是大日本帝国陆军的航空部队，相当於各国的陆军航空兵。通称为飞行战队、战队。在帝国陆军的军队符号不是FR而是F。
各部队详情请参阅大日本帝国陆军飞行战队列表一项。
飞行战队为日本陆军航空编制的一种，一个战队下辖3个飞行中队，编制飞机数量24-36架。战队队长官阶在开战前大多是由上校或中校担任，但是在开战后因为战队大量扩张加上人力资源不足因此战队长官阶逐步下修，到战争中后期甚至有上尉接战队长职务的案例。
1920年代日军空中部队开始大幅度扩张，在当时日本陆军开始尝试编组日渐增加的航空武力，最初的规划为编制数与飞行战队接近的飞行连队，在1930年时已编成了8个飞行连队；但是在1930年代以后日本陆军在策划对苏联的作战时发觉其战机数量无法有效压制苏联，因此必须让飞行武力更有效率的运用。日军对这问题的结论是将战斗单位与后勤单位分离，战斗单位改编为飞行战队，后勤单位改编为飞行场大队，藉此让战斗部队可以更快速调动至前线野战机场进行战斗。
这套构想在1937年於满州进行测试，之后将到所有陆军航空部队都使用此方法改编，不过原先在日本本土设立的飞行连队因为职责为防衞日本领空，因此不需野战激动，除了组织名称变更以外并没有对其作战方式产生任何变化，这类称为内地型战队。
战队分成战斗与侦察两种类型，飞行战队由飞行团管辖，而飞行团由飞行集团指挥，1943年飞行集团改称飞行师团，并在上方增设航空军这种大型指挥单位
飞行战队到1945年战争结束前编成了92支。