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Cheap flights from London Heathrow Airport to Sumatra

LHR — KNO
11 Dec — 18 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to Sumatra

Popular in

July

Cheapest in

March

Average price

£692
Highest demand for flights based on searches. 16% potential increase in price (£117 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
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Average for round-trip flights in November 2026
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Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Sumatra

What is the cheapest month to book a flight from London Heathrow Airport to Sumatra?

Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Sumatra (average of £462). Flying from London Heathrow Airport to Sumatra in July is currently the most expensive (average of £1,306). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Sumatra

Get a feel of what it's like to fly with Singapore Airlines from London Heathrow Airport to Sumatra by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,635 reviews
Check prices

Crew

8.6

Comfort

8.0

Food

7.8

Boarding

8.3

Overall

8.2

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.
Singapore Airlines
8.2
Very Good
1,635 reviews
Singapore Airlines
8.2
Very Good
1,635 reviews
Check prices

Crew

8.6

Comfort

8.0

Food

7.8

Boarding

8.3

Overall

8.2

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SYD - SIN

creat a group of Senior (75 above) to allow them board the flight ahead of other groups.

Related info for your journey

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

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

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

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

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

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

  • What is the cheapest month to book a flight from London Heathrow Airport to Sumatra?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Sumatra (average of £462). Flying from London Heathrow Airport to Sumatra in July is currently the most expensive (average of £1,306). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Heathrow to Sumatra

AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest£706Average£799FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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Certainly. Search results for flights to Sumatra from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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