We've gone through lots of different flights, to help you find the cheapest way to get from London Heathrow to Semarang. You can choose from four airlines. At the moment, 24 / Jul / 2025 is the cheapest date to travel, but scroll through the results to find the option that works best for you.
There are 12 flights from London Heathrow to or via Semarang every week. Out of the four available airlines, the most popular ones are Etihad Airways, Qatar Airways & Thai Airways International. 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.
Your flight from London Heathrow to Semarang will take at least 21 hrs 40 mins. On average, it takes 23 hrs 15 mins to fly the 12058 km distance. Take a look at flight times to see which one works best for you.
If you need somewhere to stay for your trip to Indonesia, take a look at our accommodation options.
