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Cheap flights from London to Semarang from £505

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SRG
3 Jan — 10 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Semarang

Enter your travel dates to find the best prices.

Cheapest flights from London to Semarang
Explore the most affordable flight options available from London to Semarang. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 December 2025.

Mon 15/1210:40LGW - SRG
3 stops27h 20mMultiple Airlines
Thu 18/1209:45SRG - LGW
3 stops45h 10mMultiple Airlines
Deal found 1/12£880
Mon 15/1208:50LHR - SRG
2 stops22h 50mMultiple Airlines
Thu 18/1215:25SRG - LHR
2 stops27h 40mMultiple Airlines
Deal found 1/12£925
Mon 15/1209:20LCY - SRG
2 stops22h 20mMultiple Airlines
Thu 18/1215:25SRG - LCY
3 stops23h 45mMultiple Airlines
Deal found 1/12£2,691

Find flight deals from London to Semarang

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Semarang (SRG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 December 2025.

Round-trip from

£634

One-way from

£505
Singapore Airlines
  • Singapore Airlines
  • 19/5-3/6
  • 2 total stops
  • 43h 25m total
  • London to Semarang
Search Deals
4/1
  • 4/1
  • 3 total stops
  • 47h 15m total
  • London to Semarang
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Semarang that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 4 December 2025.
Use the filters below to find and compare flights from London to Semarang that are best for you.

Fly from

London

Fly to

Semarang

Route

Depart

Return

Price

LondonSemarang

LGW - SRG

LGWSRG

London Gatwick

Tue 19/5

10:15-16:10

1 stop23h 55m

Semarang Achmad Yani

Wed 3/6

16:55-06:25

1 stop19h 30m

£634

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Tue 19/5

11:25-16:10

1 stop22h 45m

Semarang Achmad Yani

Wed 3/6

16:55-19:30

1 stop32h 35m

£664

LondonSemarang

LGW - SRG

LGWSRG

London Gatwick

Wed 4/2

08:40-21:00

2 stops29h 20m

Semarang Achmad Yani

Wed 18/2

07:00-05:55

2 stops29h 55m

£701

LondonSemarang

LGW - SRG

LGWSRG

London Gatwick

Tue 19/5

10:15-16:10

1 stop23h 55m

Semarang Achmad Yani

Wed 3/6

15:25-06:25

2 stops21h 00m

£719

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Wed 4/3

19:20-17:00

2 stops38h 40m

Semarang Achmad Yani

Sun 8/3

15:25-06:40

2 stops46h 15m

£729

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Thu 1/1

08:50-14:40

2 stops22h 50m

Semarang Achmad Yani

Thu 15/1

09:45-06:40

2 stops27h 55m

£738

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Tue 28/4

09:30-16:55

2 stops25h 25m

Semarang Achmad Yani

Tue 12/5

17:40-15:15

2 stops27h 35m

£748

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Tue 19/5

09:30-16:55

2 stops25h 25m

Semarang Achmad Yani

Wed 3/6

17:40-15:15

2 stops27h 35m

£748

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Tue 19/5

09:30-16:55

2 stops25h 25m

Semarang Achmad Yani

Tue 2/6

17:40-15:15

2 stops27h 35m

£748

LondonSemarang

LGW - SRG

LGWSRG

London Gatwick

Tue 19/5

10:15-16:10

1 stop23h 55m

Semarang Achmad Yani

Tue 2/6

15:25-06:25

2 stops45h 00m

£750

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 15 results
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Best time to book a flight from London to Semarang

Have a flexible travel schedule? Discover the best time to fly to Semarang from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Semarang
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from London to Semarang. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Semarang from London?

    Semarang Achmad Yani (SRG) is the airport you will fly into if you book a flight from London to Semarang. You should not have trouble finding flights to Achmad Yani from London; the airport handles an average of 0 inbound flights from London per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Semarang airport from London. It is only a 3.4 mi journey from Achmad Yani (SRG) to Semarang’s city center.

  • How long is the flight from London to Semarang?

    For as low as £634, Singapore Airlines can have you in Semarang from London in 23h 55m. Airlines will cover a distance of 7474 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from London to Semarang?

    The most popular flight routes from London to Semarang are London Heathrow - Semarang Achmad Yani, London Gatwick - Semarang Achmad Yani and London City - Semarang Achmad Yani.

  • Can I find deals for flights from London to Semarang that include hotel bookings?

    Yes. In addition to deals on London to Semarang flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Semarang?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Semarang.

  • Can I find deals for business class flights from London to Semarang?

    Yes. Cheapflights offers flight deals from London to Semarang by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for London to Semarang

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Semarang?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from London to Semarang. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from London to Semarang?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Semarang for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from London to Semarang with no change fees?

Need flexible booking options for your flight to Semarang from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to Semarang become cheaper?

Not ready to book yet? You can track prices for flights from London to Semarang on Cheapflights with our Price Alert feature and get notified when better prices are available.

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