How long is the flight from London to Semarang?

For as low as £779, Etihad Airways can have you in Semarang from London in 35h 50m. Airlines will cover a distance of 7481 mi.

In terms of precipitation, rainfall in Semarang ranges from 60.0 - 430.0 inches per month. January is typically the wettest month, when rainfall can reach 430.0 mm. August is typically the driest time to visit Semarang when rainfall is around 60.0 mm.

If weather is an important factor for your trip to Semarang, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

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.

What is the cheapest time of day to fly from LON to SRG?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to Semarang as you normally would.

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 1 airline has flights to the Semarang airport from London. It is only a 3.4 mi journey from Achmad Yani (SRG) to Semarang’s city center.

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.

£704+ Cheap Flights from London to Semarang

Cheap flight deals from London to Semarang

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

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 20 October 2026.

Sun 29/1106:00 -

3 stops24h 20m

Sun 6/1214:00 -

2 stops32h 55m

Deal found 15/10£704

Thu 3/1213:55 -

2 stops35h 50m

Thu 10/1214:00 -

2 stops34h 45m

Deal found 19/10£743

Thu 3/1213:55 -

2 stops35h 50m

Thu 10/1212:40 -

2 stops32h 50m

Deal found 19/10£779

Sun 29/1110:10 -

2 stops42h 45m

Sun 6/1215:30 -

2 stops32h 00m

Deal found 15/10£785

Thu 3/1210:05 -

2 stops39h 40m

Thu 10/1215:30 -

2 stops38h 05m

Deal found 19/10£791

Mon 26/1019:20 -

2 stops40h 25m

Sat 28/1115:30 -

2 stops30h 00m

Deal found 17/10£803

Sat 14/1119:20 -

2 stops33h 35m

Tue 17/1107:05 -

2 stops38h 25m

Deal found 19/10£965

Thu 3/1213:05 -

1 stop35h 15m

Thu 10/1208:05 -

1 stop32h 00m

Deal found 19/10£1,004

Sun 25/1020:25 -

2 stops28h 20m

Sat 28/1118:15 -

2 stops24h 25m

Deal found 17/10£1,010

Sat 24/1014:35 -

2 stops24h 05m

Sat 28/1111:40 -

2 stops26h 00m

Deal found 17/10£1,077

Mon 26/1013:05 -

1 stop22h 25m

Sat 28/1108:05 -

1 stop32h 00m

Deal found 17/10£1,106

Tue 27/1013:05 -

1 stop22h 25m

Sat 28/1108:05 -

1 stop32h 00m

Deal found 17/10£1,166

Find flight deals from London to Semarang

Round-trip from	£704

29/11-6/12
5 total stops
57h 15m total
London to Semarang

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSemarang

LHR London Heathrow - SRG Semarang Achmad Yani

LHRSRG

London Heathrow

Sun 29/11

08:40-12:35

2 stops20h 55m

Semarang Achmad Yani

Sun 6/12

20:20-06:40

2 stops41h 20m

£740

LondonSemarang

LHR London Heathrow - SRG Semarang Achmad Yani

LHRSRG

London Heathrow

Thu 3/12

13:55-08:45

2 stops35h 50m

Semarang Achmad Yani

Thu 10/12

14:00-17:45

2 stops34h 45m

£743

LondonSemarang

LHR London Heathrow - SRG Semarang Achmad Yani

LHRSRG

London Heathrow

Thu 3/12

13:55-08:45

2 stops35h 50m

Semarang Achmad Yani

Thu 10/12

12:40-14:30

2 stops32h 50m

£779

LondonSemarang

LGW London Gatwick - SRG Semarang Achmad Yani

LGWSRG

London Gatwick

Sun 29/11

10:10-11:55

2 stops42h 45m

Semarang Achmad Yani

Sun 6/12

15:30-16:30

2 stops32h 00m

£785

LondonSemarang

LGW London Gatwick - SRG Semarang Achmad Yani

LGWSRG

London Gatwick

Thu 3/12

10:05-08:45

2 stops39h 40m

Semarang Achmad Yani

Thu 10/12

15:30-22:35

2 stops38h 05m

£791

Fastest return journey

LondonSemarang

LHR London Heathrow - SRG Semarang Achmad Yani

LHRSRG

London Heathrow

Tue 12/1

08:05-13:20

2 stops22h 15m

Semarang Achmad Yani

Fri 2/4

14:00-06:35

2 stops22h 35m

£867

LondonSemarang

LGW London Gatwick - SRG Semarang Achmad Yani

LGWSRG

London Gatwick

Tue 12/1

10:05-08:45

2 stops39h 40m

Semarang Achmad Yani

Fri 2/4

15:30-16:40

2 stops31h 10m

£888

LondonSemarang

LHR London Heathrow - SRG Semarang Achmad Yani

LHRSRG

London Heathrow

Sat 14/11

19:20-11:55

2 stops33h 35m

Semarang Achmad Yani

Tue 17/11

07:05-14:30

2 stops38h 25m

£965

LondonSemarang

LGW London Gatwick - SRG Semarang Achmad Yani

LGWSRG

London Gatwick

Thu 3/12

13:05-07:20

1 stop35h 15m

Semarang Achmad Yani

Thu 10/12

08:05-09:05

1 stop32h 00m

£1,004

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Sorted by cheapest first

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.

LON-SRG

LHR-SRG

LGW-SRG

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

LON-SRG

LHR-SRG

LGW-SRG

No data available for this route at this time. Please check back soon.

Related info for your journey

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 1 airline has 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 £779, Etihad Airways can have you in Semarang from London in 35h 50m. Airlines will cover a distance of 7481 mi.
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.

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Top airline flying from London to Semarang

Airline	Cheapest	Average	Flexibility	On-time
Singapore Airlines	Cheapest£629	Average£630	FlexibilityNo cancel fee	On-time81%	Search Singapore Airlines flights

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Cheap flights from London to Semarang from £704

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Semarang

Cheapest flights from London to SemarangExplore 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 20 October 2026.

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 20 October 2026.

Best flights from London to SemarangDiscover carefully curated flight deals from London to Semarang that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 October 2026.

Discover carefully curated flight deals from London to Semarang that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 October 2026.

Last-minute flights from London to SemarangDiscover last-minute flight deals from London to Semarang. Data last updated 20 October 2026 and is based on user searches.

Discover last-minute flight deals from London to Semarang. Data last updated 20 October 2026 and is based on user searches.

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Best time to book a flight from London to Semarang

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Related info for your journey

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

How long is the flight from London to Semarang?

What are the most popular routes from London to Semarang?

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

How can I find direct flights from London to Semarang?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to Semarang

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Complete your trip

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London and Semarang flights

Browse other London and Semarang flight options. Last updated on 20 October 2026.

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Top airline flying from London to Semarang

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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 20 October 2026.

Best flights from London to Semarang
Discover carefully curated flight deals from London to Semarang that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 20 October 2026.

Last-minute flights from London to Semarang
Discover last-minute flight deals from London to Semarang. Data last updated 20 October 2026 and is based on user searches.