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Cheap flights from London Heathrow Airport to Sumatra from £524

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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KNO
8 Aug — 15 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Sumatra

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Sumatra
Explore the most affordable flight options available from Heathrow to Sumatra. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 July 2026.

Tue 27/1020:05
LHR
-
KNO
2 stops40h 35m
SWISS
Sat 28/1120:30
KNO
-
LHR
2 stops21h 45m
SWISS
Deal found 4/7£563
Mon 5/1020:05
LHR
-
KNO
2 stops41h 30m
SWISS
Mon 19/1008:50
KNO
-
LHR
2 stops29h 05m
SWISS
Deal found 6/7£583
Thu 10/918:40
LHR
-
KNO
2 stops31h 20m
Multiple Airlines
Sat 26/920:25
KNO
-
LHR
2 stops41h 30m
Multiple Airlines
Deal found 6/7£602
Sat 5/917:50
LHR
-
KNO
2 stops32h 10m
Lufthansa
Tue 15/908:50
KNO
-
LHR
2 stops36h 50m
Lufthansa
Deal found 4/7£649
Fri 4/916:25
LHR
-
KNO
2 stops21h 10m
Lufthansa
Sun 13/920:25
KNO
-
LHR
2 stops41h 50m
Lufthansa
Deal found 7/7£694
Wed 9/911:20
LHR
-
KNO
1 stop26h 15m
Singapore Airlines
Sat 26/908:50
KNO
-
LHR
1 stop36h 55m
Singapore Airlines
Deal found 7/7£708
Mon 5/1008:30
LHR
-
KNO
2 stops29h 05m
Multiple Airlines
Mon 19/1008:50
KNO
-
LHR
1 stop27h 05m
Multiple Airlines
Deal found 6/7£732
Wed 9/909:25
LHR
-
KNO
1 stop28h 10m
Singapore Airlines
Tue 22/920:25
KNO
-
LHR
1 stop29h 05m
Singapore Airlines
Deal found 4/7£749
Tue 13/1020:35
LHR
-
KNO
1 stop17h 00m
Singapore Airlines
Fri 27/1120:30
KNO
-
LHR
1 stop25h 50m
Singapore Airlines
Deal found 5/7£754
Sat 22/822:15
LHR
-
PDG
2 stops31h 40m
Multiple Airlines
Sat 29/816:25
PDG
-
LHR
2 stops33h 35m
Multiple Airlines
Deal found 7/7£771
Fri 7/806:30
LHR
-
PDG
3 stops32h 05m
Multiple Airlines
Sat 29/816:25
PDG
-
LHR
2 stops33h 35m
Multiple Airlines
Deal found 7/7£856
Wed 25/1119:20
LHR
-
PDG
2 stops32h 55m
Etihad Airways
Sun 29/1112:00
PDG
-
LHR
2 stops37h 10m
Etihad Airways
Deal found 8/7£901

Find flight deals from Heathrow to Sumatra

Keep the following information in mind while searching for Heathrow to Sumatra flight deals. Data was last updated 9 July 2026.

Round-trip from

£563

One-way from

£524

Popular in

December

Cheapest in

March

Average price

£1,103
SWISS
  • SWISS
  • 27/10-28/11
  • 4 total stops
  • 62h 20m total
  • London to Sumatra
Search Deals
2/8
  • 2/8
  • 3 total stops
  • 54h 40m total
  • London to Sumatra
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£27 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Sumatra 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 9 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Sumatra that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Tue 27/10

20:05-19:40

2 stops40h 35m

Medan Kuala Namu Intl

Sat 28/11

20:30-11:15

2 stops21h 45m

£563

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Wed 9/9

09:25-19:35

1 stop28h 10m

Medan Kuala Namu Intl

Tue 22/9

20:25-19:30

1 stop29h 05m

£750

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Fri 4/9

11:20-08:00

1 stop38h 40m

Medan Kuala Namu Intl

Sun 13/9

20:25-19:30

1 stop29h 05m

£764

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Thu 17/9

09:25-19:35

1 stop28h 10m

Medan Kuala Namu Intl

Thu 24/9

20:25-19:30

1 stop29h 05m

£792

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Tue 1/9

20:35-19:35

1 stop17h 00m

Medan Kuala Namu Intl

Tue 15/9

20:25-19:30

1 stop29h 05m

£854
Fastest return journey

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Tue 13/10

08:25-09:40

2 stops19h 15m

Medan Kuala Namu Intl

Fri 27/11

16:50-08:00

2 stops22h 10m

£896

LondonPadang

LHR - PDG

LHRPDG

London Heathrow

Wed 25/11

19:20-11:15

2 stops32h 55m

Padang Tabing

Sun 29/11

12:00-18:10

2 stops37h 10m

£901

LondonPadang

LHR - PDG

LHRPDG

London Heathrow

Sat 22/8

09:35-16:00

2 stops24h 25m

Padang Tabing

Sat 29/8

11:55-15:25

3 stops33h 30m

£906

LondonPadang

LHR - PDG

LHRPDG

London Heathrow

Thu 10/12

10:25-15:55

1 stop22h 30m

Padang Tabing

Sun 20/12

16:20-05:35

1 stop20h 15m

£1,161

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Wed 9/9

09:30-15:00

2 stops23h 30m

Medan Kuala Namu Intl

Tue 22/9

15:45-06:30

2 stops20h 45m

£1,165

Flights are sorted by cheapest return flights first.

Deals found on 4/7

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from Heathrow to Sumatra

Have a flexible travel schedule? Discover the best time to fly to Sumatra 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.

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 £463). Flying from London Heathrow Airport to Sumatra in August is currently the most expensive (average of £1,041). 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 insights into the airlines that provide service to Sumatra. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sumatra. Reviews last updated 9 July 2026.
Get a feel of what it's like to fly with Singapore Airlines,Etihad Airways, andMalaysia 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
1,565 reviews
Check prices

Boarding

8.3

Overall

8.2

Comfort

8.0

Entertainment

8.0

Food

7.8

Crew

8.6

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
1,565 reviews
Singapore Airlines
8.2
Very Good
1,565 reviews
Check prices

Boarding

8.3

Overall

8.2

Comfort

8.0

Entertainment

8.0

Food

7.8

Crew

8.6

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.
Etihad Airways
7.3
Good
1,477 reviews
Singapore Airlines
8.2
Very Good
1,565 reviews
Check prices

Boarding

8.3

Overall

8.2

Comfort

8.0

Entertainment

8.0

Food

7.8

Crew

8.6

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.
Malaysia Airlines
7.3
Good
313 reviews
Singapore Airlines
8.2
Very Good
1,565 reviews
Check prices

Boarding

8.3

Overall

8.2

Comfort

8.0

Entertainment

8.0

Food

7.8

Crew

8.6

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

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

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

    There are many flights that can get you from London Heathrow Airport to Sumatra in 28h 10m. Fly via SWISS, Singapore Airlines, or Etihad Airways to get the fastest option. There are 6416 mi between London Heathrow Airport and Sumatra. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 £463). Flying from London Heathrow Airport to Sumatra in August is currently the most expensive (average of £1,041). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 3 airlines flying from Heathrow to Sumatra

Discover the top 3 airlines that operate flights from Heathrow to Sumatra. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 9 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest£474Average£847FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£546Average£1,001FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Singapore AirlinesCheapest£577Average£808FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights

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 Heathrow to Sumatra?

Cheapflights makes it easy to find Heathrow to Sumatra flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Sumatra?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Sumatra 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 Heathrow to Sumatra with no change fees?

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.

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

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

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