Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Guam, across the one airlines that offer this route. We've found that 16 / Jun / 2025 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.
There are five flights from London Heathrow to or via Guam every week. Out of the one available airlines, the most popular ones are Qatar Airways. But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.
Generally speaking, the flight from London Heathrow to Guam takes around 25 hrs. The fastest flight takes 25 hrs to cover the 12061 km distance. You can view all flight times yourself in the results list.
If you need somewhere to stay for your trip to Pacific Islands, take a look at our accommodation options.
