Cheap flights from London to Semarang
Cheap return flights from London to Semarang
Find the best deals
All prices shown are per person based on return flights only. Prices found in the last 48 hours.
Semarang flight facts
What you need to know
What are the cheapest airlines?
- AirAsia
- Garuda Indonesia
- Qatar Airways
These airlines usually offer the cheapest flights from London to Semarang.
What airlines fly indirectly?
- Emirates
- Singapore Airlines
- Cathay Pacific
These airlines fly from London to Semarang, but you’ll have at least one layover.
How long is the flight?
16 hours 30 minutes
This is the shortest flight time from London to Semarang.
Alternative flights from the UK to Semarang
Check out prices for other routes
Alternative flights from London
You might find cheaper flights nearby
Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the London/Semarang route. There are around 35 flights on any given week from the UK to Semarang and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.
How to get cheap flights from London to Semarang
Tips and advice from our flight experts
You've searched for flights from London to Semarang. We've found 25 flights and compared them to give you the best offer. On average, AirAsia is the cheapest airline for this route, so look out for them. The cheapest offer we've found is a one-way ticket for London to Semarang on 10/04/2026 at 13:20 for £55.
We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 11,600 km flight from London to Semarang.
To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. AirAsia is a popular and affordable choice for this route, with an average flight duration of 16 hours 30 minutes. After selecting an offer, fill out your information and proceed to payment. Don't forget to check our flight + hotel service to save time and money!
Other popular destinations near Semarang
Where other people are flying to
