The biggest airplanes in the world: wingspan, length and weight compared

When an Airbus A380 floats over the threshold, everything around it suddenly looks small: the approach lights, the taxiways, even the jet that just landed ahead of it. But the A380 is only one of several candidates for the title of biggest airplane in the world. Who holds the record depends on what you measure. This overview sorts the giants by wingspan, length and weight, explains the stories behind them and shows you which of these behemoths you can still catch at the fence yourself.

The biggest airplane in the world: the short answer

There are three sensible yardsticks – and three different winners:

• Wingspan: The Stratolaunch carrier “Roc” measures about 117 meters from wingtip to wingtip. No aircraft that has ever taken off was wider.
• Takeoff weight and length: The Antonov An-225 Mriya was allowed to take off at about 640 tons and was 84 meters long. It has not existed since it was destroyed in February 2022.
• Passenger aircraft: With two full-length decks, the Airbus A380 is the largest airliner. In length, however, the Boeing 747-8 is ahead.

For spotters, the third group matters most: you will almost certainly never see the Roc or the Mriya at your home airport, but you will see the A380 and 747-8 regularly.

Why “the biggest” is so hard to define

In everyday speech, “big” usually means an overall impression. Technically, though, only individual measurements can be compared, and they depend heavily on what the aircraft is for:

• Wingspan determines which gates, taxiways and parking positions an aircraft can use. That is why it is deliberately limited on airliners – but not on special aircraft like the Roc.
• Length grows mostly with the cabin. Stretched variants like the 747-8 or the 777-9 are therefore longer than the bulkier but shorter A380.
• Maximum takeoff weight (MTOW) says the most about actual size, because it combines structure, fuel and payload. But you cannot see it – at the fence, length and wingspan are what count.

Then there is the question of what counts at all. Large airships are sometimes very long, but they are not considered airplanes because they get most of their lift from gas. We are sticking to aircraft with wings here.

The record holders compared

Aircraft	Role	Wingspan	Length	Max. takeoff weight	Status as of October 2026
Stratolaunch Roc	Carrier aircraft	approx. 117 m	approx. 73 m	approx. 590 t	One-off, in test operations
Hughes H-4 Hercules	Flying boat	approx. 97.5 m	approx. 66.7 m	–	Museum piece
Antonov An-225 Mriya	Heavy-lift freighter	88.4 m	84 m	approx. 640 t	Destroyed in 2022
Airbus A380-800	Passenger aircraft	79.8 m	72.7 m	up to 575 t	In scheduled service
Antonov An-124	Heavy-lift freighter	73.3 m	approx. 69 m	approx. 402 t	In service
Boeing 747-8I	Passenger aircraft	68.4 m	76.3 m	approx. 448 t	In scheduled service
Lockheed C-5M Galaxy	Military transport	approx. 67.9 m	approx. 75.3 m	approx. 381 t	In service
Boeing 777-9	Passenger aircraft	71.8 m (64.8 m on the ground)	76.7 m	–	Test phase

The figures are rounded and come from manufacturer data and established reference works. Takeoff weights differ by version and weight variant, so treat them as orders of magnitude.

Stratolaunch Roc: the widest aircraft of all time

The Roc, officially the Scaled Composites Model 351, looks like two airplanes someone glued side by side. That is exactly how it is built: two fuselages carry a shared, continuous center wing. Six Pratt & Whitney PW4056 turbofans – the engine of older 747-400s – hang under the wings. There is a cockpit only in the right-hand fuselage.

It was originally built to release rockets at high altitude and so carry them into orbit. The first flight took place on April 13, 2019 in Mojave, California. After a change of ownership, the Roc got a new job: today it carries the hypersonic test vehicle Talon-A up under its center wing and releases it there.

For spotters, the Roc is purely a bucket-list target. It operates out of Mojave and rarely flies. If you want to see it, you need luck and a trip to the Mojave Desert.

Hughes H-4 Hercules: the record holder that flew only once

Before the Roc took off, a flying boat from the 1940s held the wingspan record: the Hughes H-4 Hercules, better known by its nickname “Spruce Goose.” Because aluminum was scarce in World War II, it was built mostly from laminated birch. Eight radial engines powered the giant, which was about 97.5 meters wide.

It made its only flight on November 2, 1947 off Long Beach: with Howard Hughes himself at the controls, it lifted off for about 1.5 kilometers and stayed only about 20 meters above the water. It never flew again. Today it sits in an aviation museum in McMinnville in the US state of Oregon – a museum visit is the only way to see it.

Antonov An-225 Mriya: the queen of freighters

No aircraft has electrified spotters like the Antonov An-225. It was created in the 1980s as a transporter for the Soviet space shuttle Buran, which it could carry piggyback on its fuselage. For this, Antonov enlarged its An-124: a longer fuselage, a bigger wing, six engines instead of four and a striking twin tail.

The first flight took place on December 21, 1988. At 84 meters long, with an 88.4-meter wingspan and about 640 tons maximum takeoff weight, it was the heaviest aircraft ever to fly regularly. After the end of the Buran program, it became a sought-after heavy-lift freighter for generators, components and relief supplies.

On February 27, 2022, the only completed Mriya was destroyed in its hangar during the fighting for Hostomel airfield near Kyiv. Antonov has floated a rebuild, possibly based on an unfinished second airframe. There was no confirmed schedule for it as of October 2026.

Airbus A380: the largest passenger aircraft

The A380-800 is the only airliner with two passenger decks over the full length of the fuselage. With a 79.8-meter wingspan, 72.7 meters in length, 24.1 meters in height and up to 575 tons takeoff weight, it is the largest passenger jet in the world. In a typical four-class cabin, Airbus lists 545 seats; it is certified for up to 853 passengers.

It is no longer being built: Airbus delivered 251 aircraft to 14 customers, the last in December 2021 to Emirates. The Dubai-based airline is by far the most important operator. Others flying the type include Singapore Airlines, British Airways, Qatar Airways and Lufthansa. Which fleets are currently active changes with reactivations and retirements – check the current status before a targeted trip.

It is easy to recognize: two full-length rows of windows, four engines and a huge six-wheel main landing gear under the fuselage – you will not confuse it with anything else. How to reliably tell it apart from the 747 is covered in the guide Telling Airbus and Boeing apart.

Boeing 747-8 and 777-9: the longest

The Boeing 747-8 is the last and largest version of the Jumbo. At about 76.3 meters, it is longer than the A380 but carries significantly fewer passengers, because the upper deck only runs through the front part. Only 48 of the 747-8 Intercontinental passenger version were built; Lufthansa was the launch customer and is its largest operator. The full story of the type is told in the article History of the Boeing 747.

The Boeing 777-9 is a little longer still at about 76.7 meters. Its trademark is the folding wingtips: in flight it spans 71.8 meters, while on the ground the tips fold up and the span drops to 64.8 meters – exactly that of the 777-300ER. As of October 2026, the 777-9 was still in testing; for the first delivery to launch customer Lufthansa, Boeing and the airline most recently named 2027.

For perspective: the Airbus A340-600 at about 75 meters and the A350-1000 at just under 74 meters are also among the longest passenger jets ever built.

The big freighters: An-124, C-5 and Dreamlifter

Besides the record holders, there is a group of cargo aircraft that fly regularly and are still unusually large:

• Antonov An-124 Ruslan: Four engines, a 73.3-meter wingspan and a cargo hold about 36 meters long. At just over 400 tons takeoff weight, it was considered the heaviest aircraft in the world until the An-225 appeared. Only a little over 50 were built. The An-124 lifts both its nose and a rear ramp for loading.
• Lockheed C-5M Galaxy: The big strategic transport of the US Air Force. At about 75.3 meters long and with a 67.9-meter wingspan, it is in the same league as the An-124; you can recognize it by its tall T-tail.
• Boeing 747 Dreamlifter: Four converted 747-400s with a greatly widened fuselage, built to transport 787 components. Their cargo hold has about three times the volume of a regular 747-400 freighter.
• Airbus BelugaXL: Not heavy, but voluminous. The BelugaXL is based on the A330 and moves fuselage and wing sections between the Airbus plants. More in the article Spotting at Airbus Finkenwerder.

How to recognize freighters in general by their fuselage, cargo doors and missing windows is explained in the guide Identifying cargo aircraft.

Where to see the giants today

The Roc, Hercules and Mriya are history or a far-off goal for most spotters. The other giants, though, also show up in Germany:

Type	Realistic chance in Germany	Good starting point
Airbus A380	regularly	Frankfurt Airport, Munich Airport, other Emirates destinations
Boeing 747-8I	regularly	Frankfurt, where Lufthansa has based its 747-8 fleet
Boeing 747-8F	occasionally to regularly	Cargo airports like Frankfurt and Leipzig/Halle
Antonov An-124	regularly (Antonov Airlines base)	Leipzig/Halle Airport
BelugaXL	occasionally	Airbus site Hamburg-Finkenwerder

In Frankfurt, the Zeppelinheim viewing platform is a good choice; in Munich, the visitors’ hill with a view of the Lufthansa A380s. In Leipzig/Halle, the observation deck gives you a chance of an An-124 with a bit of luck. Since freighter assignments and A380 rotations change with the flight schedule period, it pays to check a flight tracker first – how that works is covered in the guide Flight tracking with ADS-B.

For step 3, the guides Understanding runway direction and Planning around the sun position will help.

Photo tips for very large aircraft

• Pack less focal length. With a wingspan of almost 80 meters, an A380 quickly fills the frame at close spots. If you only work with a long telephoto, you cut off the wingtips. Which focal lengths work well is covered in the guide Lenses for plane spotting.
• Show size through comparison. A giant looks most impressive next to a normal aircraft, such as an A320neo on the taxiway beside it, or in front of vehicles and people on the apron.
• Let the approach feel slow. Large aircraft seem to hang almost motionless on approach. That is an optical illusion – the approach speed is similar to that of smaller jets. Still keep your shutter speed fast enough.
• Mind the wake turbulence. Heavy aircraft generate strong vortices, and traffic behind them is spaced with larger separation. That gives you time between two landings. Background in the article Wake turbulence and separation.
• Record the registration. For types built in small numbers, such as the 747-8I or the An-124, every registration is a collectible point of its own. How to read them is explained in the guide Understanding aircraft registrations.

Conclusion

“The biggest airplane in the world” is not a clear-cut answer but a question of yardstick. In wingspan, the Stratolaunch Roc leads; in weight and length, the An-225 held the crown until it was destroyed in 2022. Among passenger aircraft, the A380 remains the largest and the 747-8 the longest in scheduled service – and the 777-9 stands ready to take the length record from it. For you as a spotter, what matters most is this: with a little planning, you can actually see the A380, 747-8 and An-124 in Germany.