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Cheap flights from London Heathrow Airport to Semarang from £462

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SRG
12 Apr — 19 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Semarang

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Semarang
Explore the most affordable flight options available from Heathrow to Semarang. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 March 2026.

Sat 2/509:30
LHR
-
SRG
2 stops23h 10m
Multiple Airlines
Mon 25/518:00
SRG
-
LHR
2 stops24h 45m
Multiple Airlines
Deal found 12/3£704
Sun 13/909:30
LHR
-
SRG
2 stops23h 10m
Multiple Airlines
Sun 11/1018:00
SRG
-
LHR
2 stops24h 45m
Multiple Airlines
Deal found 12/3£751
Tue 19/509:25
LHR
-
SRG
1 stop26h 10m
Singapore Airlines
Wed 3/618:25
SRG
-
LHR
1 stop27h 20m
Singapore Airlines
Deal found 10/3£755
Tue 19/511:20
LHR
-
SRG
1 stop24h 15m
Multiple Airlines
Mon 1/609:30
SRG
-
LHR
2 stops26h 25m
Multiple Airlines
Deal found 9/3£937

Find flight deals from Heathrow to Semarang

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 13 March 2026.

Round-trip from

£704

One-way from

£462
2/5-25/5
  • 2/5-25/5
  • 4 total stops
  • 47h 55m total
  • London to Semarang
Search Deals
18/3
  • 18/3
  • 3 total stops
  • 50h 20m total
  • London to Semarang
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 13 March 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Semarang that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Tue 19/5

09:25-17:35

1 stop26h 10m

Semarang Achmad Yani

Wed 3/6

18:25-15:45

1 stop27h 20m

£755

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Tue 19/5

11:20-17:35

1 stop24h 15m

Semarang Achmad Yani

Mon 1/6

09:30-05:55

2 stops26h 25m

£937
Fastest return journey

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Tue 19/5

11:20-17:35

1 stop24h 15m

Semarang Achmad Yani

Tue 2/6

18:25-05:55

1 stop17h 30m

£948

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Wed 20/5

20:35-07:10

1 stop52h 35m

Semarang Achmad Yani

Mon 1/6

09:30-05:55

2 stops26h 25m

£1,161

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Tue 19/5

08:05-12:05

2 stops22h 00m

Semarang Achmad Yani

Tue 2/6

09:30-06:25

2 stops26h 55m

£1,183
Cheapest one-way
Fastest single journey

LondonSemarang

LHR - SRG

LHRSRG

London Heathrow

Wed 18/3

22:00-07:20

3 stops50h 20m

£462

Flights are sorted by cheapest return flights first.

Deals found on 11/3

Sorted by cheapest first

Best time to book a flight from Heathrow to Semarang

Have a flexible travel schedule? Discover the best time to fly to Semarang from Heathrow 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.

Related info for your journey

Find useful and relevant information for your journey from Heathrow 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 Heathrow?

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

  • How long is the flight from London Heathrow Airport to Semarang?

    Airlines like Singapore Airlines fly from London Heathrow Airport to Semarang in about 26h 10m. The time it takes to get you to your destination can typically vary by up to . The distance from London Heathrow Airport to Semarang is about 7481 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Semarang

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow 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 Heathrow to Semarang?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Semarang for you. Better yet — we are completely free to use.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Semarang flexibly with Cheapflights today.

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

Yes, Cheapflights offers price alerts on Heathrow to Semarang flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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