A modern Boeing 747 can fly about 15,000 km (9,500 miles) when it's flying at 900 kmh (550 mph). This means it can fly non stop for almost 16 hours!

The range of a Boeing 747 depends on the specific model, but the most advanced version, the 747-8 Intercontinental, can fly approximately 7,730 nautical miles (14,320 km) on a full tank of fuel. This translates to roughly 15 to 16 hours of continuous flight time under ideal conditions. For context, earlier models like the 747-400 had a range of about 7,260 NM (13,450 km). While these "full tank" figures are impressive, commercial airlines never fly to the absolute point of fuel exhaustion; they must legally carry "reserves" for diversions and unexpected holding patterns. Even so, a fully fueled 747-8 can easily handle "ultra-long-haul" routes like New York to Hong Kong or Los Angeles to Melbourne, carrying up to 243,400 liters of jet fuel to power its four massive GEnx engines across oceans and continents in a single hop.

That’s an excellent question, and the answer depends heavily on the specific model of the 747 and how it’s configured (passengers vs. cargo, etc.).

However, as a general rule for the most common passenger versions:

• A typical Boeing 747-400 (the most common variant for decades) with a full load of passengers and cargo can fly approximately 7,670 nautical miles (8,825 statute miles or 14,200 kilometers).
• This means it could theoretically fly routes like:
  • New York to Hong Kong (non-stop)
  • London to Sydney (historically one of the longest routes, though often with payload restrictions)
  • San Francisco to Sydney

Key Factors That Determine the Range:

1. Model/Variant: This is the biggest factor.

   • 747-100/200: Earlier models had shorter ranges (~5,300-6,000 nmi).
   • 747-400: The classic long-range workhorse (~7,670 nmi).
   • 747-8: The newest and longest-range passenger version, can fly about 7,730 nautical miles (8,900 mi / 14,320 km) with a full passenger load.

2. Payload: “Range” is always a trade-off with “payload.” A plane carrying maximum fuel cannot also carry maximum weight in passengers and cargo. For the very longest flights, airlines might restrict the number of passengers or cargo to take on more fuel. The published maximum range figures often assume a “typical” payload.

3. Winds and Weather: Headwinds can significantly reduce range, while tailwinds can increase it. Airlines calculate fuel needs for each flight based on detailed weather forecasts.

4. Flight Profile & Altitude: Optimizing the climb, cruise altitude, and descent affects efficiency.

5. Tank