Spruce Goose.
The Antonov An-225 Mriya, which was the world's largest cargo aircraft, has a wingspan of approximately 88.4 meters (290 feet). This impressive wingspan contributes to its ability to carry heavy and oversized cargo. The aircraft was designed for transporting large payloads, including the Soviet space shuttle.
The wingspan of a commercial plane varies significantly depending on the type of aircraft. For example, a Boeing 737 typically has a wingspan of about 117 feet (35.8 meters), while a larger aircraft like the Boeing 777 can have a wingspan of approximately 199 feet (60.9 meters). The Airbus A380, the largest passenger aircraft, has a wingspan of about 261 feet (79.7 meters). Overall, wingspans can range from around 90 to over 260 feet in commercial aviation.
Howard Hughes, president of Hughes Aircraft Corporation, flew his plane, The H-4 Hercules nicknamed the Spruce Goose, in 1947. The Hercules (Spruce Goose) is the largest flying boat ever built, and has the largest wingspan of any aircraft in history. It survives in good condition at the Evergreem Avoatopm Museum in McMinnville, Oregon.
Ornithocheirus
The ray with the largest wingspan is the manta ray, which can have a wingspan of up to 29 feet (8.8 meters).
The largest Philippine eagle's wingspan is about 8 feet.
The wingspan of a Lockheed C-5M Super Galaxy, a large military transport aircraft, is approximately 222 feet and 9 inches (67.89 meters). This expansive wingspan allows the C-5 to carry oversized cargo and provides stability during flight. The C-5 is one of the largest aircraft in the world, reflecting its capabilities in strategic airlift missions.
There are all kinds of aircraft and therefore many sizes. The first aircraft I flew in was a DeHavilland Chipmunk, a little less than 3 feet wide in the fuselage, with a wingspan of 34 feet. Today's largest airliner, the Airbus A380 has a fuselage almost 24 feet wide and a wingspan of 261 feet.
The B-36 was a long range combat aircraft. It had the largest wingspan of any combat aircraft. It was solely operated by the United States Air force. It was capable of delivering and bombing nuclear warheads.
Deoends on what type of jet you had in mind, and what measurement you're looking for - wingspan, length, etc. The jet aircraft holding the title of world's smallest is the Bede BD-5J, with a wingspan of 17 ft. and a length of 14 feet, 4 inches. The jet aircraft holding the title of world's largest is an Antonov An-225, with a wingspan of 290 feet and a length of 275 feet, 7 inches.
The plane with the largest wingspan in the world is the Stratolaunch. It has a wingspan of 385 feet.
The dragon with the largest wingspan (how to train your dragon) is the Timberjack. Although, the Typhomerang is only slightly smaller.