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Cheap flights from London Heathrow Airport to Sumatra from £415

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 13/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — KNO
14 Jun — 21 Jun1
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 15 May 2026.

Sat 20/618:40
LHR
-
KNO
2 stops31h 20m
SWISS
Thu 16/708:50
KNO
-
LHR
2 stops40h 30m
SWISS
Deal found 14/5£713
Sun 21/608:45
LHR
-
KNO
2 stops48h 30m
Multiple Airlines
Mon 6/720:25
KNO
-
LHR
2 stops43h 30m
Multiple Airlines
Deal found 12/5£720
Sat 3/1020:50
LHR
-
KNO
2 stops36h 10m
Multiple Airlines
Fri 6/1116:50
KNO
-
LHR
2 stops32h 35m
Multiple Airlines
Deal found 11/5£733
Tue 1/920:50
LHR
-
KNO
2 stops36h 10m
Multiple Airlines
Tue 15/909:20
KNO
-
LHR
2 stops39h 50m
Multiple Airlines
Deal found 14/5£757
Thu 21/519:25
LHR
-
KNO
2 stops37h 35m
Qatar Airways
Wed 27/509:20
KNO
-
LHR
2 stops28h 40m
Qatar Airways
Deal found 11/5£790
Thu 21/519:25
LHR
-
KNO
2 stops37h 35m
Qatar Airways
Tue 26/515:45
KNO
-
LHR
2 stops22h 15m
Qatar Airways
Deal found 11/5£794
Sat 20/621:45
LHR
-
PDG
2 stops31h 30m
Etihad Airways
Mon 22/617:15
PDG
-
LHR
2 stops25h 30m
Etihad Airways
Deal found 11/5£935
Fri 25/1206:35
LHR
-
PDG
2 stops22h 35m
Multiple Airlines
Mon 11/116:20
PDG
-
LHR
1 stop30h 05m
Multiple Airlines
Deal found 10/5£1,107
Thu 24/1221:35
LHR
-
PDG
2 stops27h 00m
Multiple Airlines
Mon 11/116:20
PDG
-
LHR
1 stop30h 05m
Multiple Airlines
Deal found 10/5£1,120
Thu 24/1208:05
LHR
-
PDG
2 stops25h 25m
Multiple Airlines
Sat 9/117:15
PDG
-
LHR
2 stops29h 55m
Multiple Airlines
Deal found 10/5£1,343
Thu 24/1210:40
LHR
-
PDG
1 stop42h 30m
Singapore Airlines
Sat 9/112:50
PDG
-
LHR
1 stop33h 30m
Singapore Airlines
Deal found 10/5£1,357
Fri 25/1208:40
LHR
-
PDG
2 stops43h 35m
Garuda Indonesia
Sun 10/112:00
PDG
-
LHR
2 stops52h 00m
Garuda Indonesia
Deal found 10/5£1,460

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 15 May 2026.

Round-trip from

£713

One-way from

£415

Popular in

July

Cheapest in

November

Average price

£604
SWISS
  • SWISS
  • 20/6-16/7
  • 4 total stops
  • 71h 50m total
  • London to Sumatra
Search Deals
13/6
  • 13/6
  • 2 total stops
  • 34h 30m total
  • London to Sumatra
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£137 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£32 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 15 May 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

Sun 21/6

08:45-15:15

2 stops48h 30m

Medan Kuala Namu Intl

Mon 6/7

20:25-09:55

2 stops43h 30m

£720

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Sat 3/10

20:50-15:00

2 stops36h 10m

Medan Kuala Namu Intl

Fri 6/11

16:50-18:25

2 stops32h 35m

£733

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Wed 9/9

22:05-08:00

1 stop27h 55m

Medan Kuala Namu Intl

Tue 22/9

20:25-19:30

1 stop29h 05m

£834
Fastest return journey

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Tue 1/9

11:20-19:35

1 stop26h 15m

Medan Kuala Namu Intl

Tue 15/9

20:25-19:30

1 stop29h 05m

£847

LondonPadang

LHR - PDG

LHRPDG

London Heathrow

Sat 20/6

21:45-11:15

2 stops31h 30m

Padang Tabing

Mon 22/6

17:15-12:45

2 stops25h 30m

£935
Cheapest one-way

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Mon 15/6

08:25-15:00

2 stops24h 35m

£517

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Wed 17/6

20:50-15:00

2 stops36h 10m

£517

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Thu 18/6

21:55-15:00

2 stops35h 05m

£550

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Fri 19/6

19:25-08:30

2 stops31h 05m

£610
Fastest single journey

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Thu 18/6

21:35-19:15

1 stop15h 40m

£629

Flights are sorted by cheapest return flights first.

Deals found on 12/5

Showing 1-10 of 12 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 £459). Flying from London Heathrow Airport to Sumatra in July is currently the most expensive (average of £999). 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 15 May 2026.
Get a feel of what it's like to fly with Singapore Airlines,Malaysia Airlines, andEtihad Airways 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
1,515 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.0

Food

7.8

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.
Singapore Airlines
8.2
Very Good
1,515 reviews
Singapore Airlines
8.2
Very Good
1,515 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.0

Food

7.8

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.
Malaysia Airlines
7.4
Good
307 reviews
Singapore Airlines
8.2
Very Good
1,515 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.0

Food

7.8

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.
Etihad Airways
7.3
Good
1,439 reviews
Singapore Airlines
8.2
Very Good
1,515 reviews
Check prices

Crew

8.6

Overall

8.2

Entertainment

8.0

Food

7.8

Boarding

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Wee Keng,Dec 2025

HKG - SIN

Quick 3 hour flight with excellent service from the crew despite it being Christmas Day holiday. Ground crew passed out Xmas cookies as well. Great experience.

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 27h 55m. Fly via 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 £459). Flying from London Heathrow Airport to Sumatra in July is currently the most expensive (average of £999). 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 15 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest£473Average£781FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£542Average£670FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Singapore AirlinesCheapest£572Average£820FlexibilityNo 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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