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Cheap flights from London to Sumatra from £342

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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KNO
10 Jul — 17 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Sumatra

Enter your travel dates to find the best prices.

Cheapest flights from London to Sumatra
Explore the most affordable flight options available from London to Sumatra. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 June 2026.

Sun 21/607:25
LHR
-
KNO
2 stops30h 10m
Lufthansa
Mon 6/720:25
KNO
-
LHR
2 stops41h 50m
Lufthansa
Deal found 5/6£698
Thu 25/616:25
LHR
-
KNO
2 stops33h 35m
Multiple Airlines
Tue 7/708:50
KNO
-
LHR
2 stops32h 30m
Multiple Airlines
Deal found 7/6£706
Thu 25/615:20
LGW
-
KNO
2 stops37h 10m
Multiple Airlines
Tue 7/708:50
KNO
-
LGW
1 stop30h 40m
Multiple Airlines
Deal found 7/6£727
Tue 1/918:40
LHR
-
KNO
2 stops18h 55m
SWISS
Thu 10/908:50
KNO
-
LHR
2 stops40h 30m
SWISS
Deal found 8/6£758
Sat 24/1009:25
LGW
-
PDG
2 stops44h 45m
Multiple Airlines
Tue 27/1017:35
PDG
-
LGW
2 stops31h 15m
Multiple Airlines
Deal found 10/6£772
Sat 24/1006:00
LHR
-
PDG
2 stops48h 10m
Multiple Airlines
Tue 27/1017:35
PDG
-
LHR
2 stops21h 30m
Multiple Airlines
Deal found 10/6£772
Wed 9/909:25
LHR
-
KNO
1 stop16h 35m
Singapore Airlines
Tue 22/908:50
KNO
-
LHR
1 stop29h 10m
Singapore Airlines
Deal found 8/6£773
Sun 21/609:05
LGW
-
KNO
2 stops28h 30m
Multiple Airlines
Mon 6/716:00
KNO
-
LGW
2 stops22h 25m
Multiple Airlines
Deal found 5/6£782
Tue 1/909:25
LHR
-
KNO
1 stop28h 10m
Singapore Airlines
Tue 15/908:50
KNO
-
LHR
1 stop36h 55m
Singapore Airlines
Deal found 8/6£812
Tue 1/918:35
LGW
-
KNO
2 stops19h 00m
Multiple Airlines
Thu 10/910:55
KNO
-
LGW
2 stops26h 10m
Multiple Airlines
Deal found 8/6£840
Tue 1/913:15
LGW
-
KNO
1 stop24h 20m
Singapore Airlines
Tue 15/916:00
KNO
-
LGW
1 stop20h 55m
Singapore Airlines
Deal found 9/6£847
Thu 12/1120:15
STN
-
PDG
2 stops56h 00m
Emirates
Mon 16/1112:00
PDG
-
STN
2 stops31h 05m
Emirates
Deal found 7/6£864

Find flight deals from London to Sumatra

Keep the following information in mind while searching for London to Sumatra flight deals. Data was last updated 10 June 2026.

Round-trip from

£698

One-way from

£342

Popular in

December

Cheapest in

March

Average price

£752
Lufthansa
  • Lufthansa
  • 21/6-6/7
  • 4 total stops
  • 72h 00m total
  • London to Sumatra
Search Deals
12/11
  • 12/11
  • 3 total stops
  • 51h 50m total
  • London to Sumatra
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 10 June 2026.
Use the filters below to find and compare flights from London to Sumatra that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPadang

LGW - PDG

LGWPDG

London Gatwick

Sat 24/10

09:25-12:10

2 stops44h 45m

Padang Tabing

Tue 27/10

17:35-17:50

2 stops31h 15m

£772

LondonPadang

LHR - PDG

LHRPDG

London Heathrow

Sat 24/10

06:00-12:10

2 stops48h 10m

Padang Tabing

Tue 27/10

17:35-08:05

2 stops21h 30m

£772

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Wed 9/9

22:05-08:00

1 stop27h 55m

Medan Kuala Namu Intl

Tue 22/9

08:50-15:45

1 stop36h 55m

£779

LondonMedan

LGW - KNO

LGWKNO

London Gatwick

Sun 21/6

09:05-19:35

2 stops28h 30m

Medan Kuala Namu Intl

Mon 6/7

16:00-08:25

2 stops22h 25m

£782

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Tue 1/9

09:25-19:35

1 stop28h 10m

Medan Kuala Namu Intl

Tue 15/9

08:50-15:45

1 stop36h 55m

£812

LondonMedan

LGW - KNO

LGWKNO

London Gatwick

Tue 1/9

13:15-19:35

1 stop24h 20m

Medan Kuala Namu Intl

Tue 15/9

16:00-06:55

1 stop20h 55m

£847

LondonPadang

STN - PDG

STNPDG

London Stansted

Thu 12/11

20:15-11:15

2 stops56h 00m

Padang Tabing

Mon 16/11

12:00-17:55

2 stops36h 55m

£864

LondonPadang

STN - PDG

STNPDG

London Stansted

Thu 17/9

21:05-11:15

2 stops56h 10m

Padang Tabing

Mon 21/9

12:00-12:55

2 stops30h 55m

£864

LondonMedan

LGW - KNO

LGWKNO

London Gatwick

Thu 12/11

08:40-16:00

2 stops24h 20m

Medan Kuala Namu Intl

Mon 16/11

16:50-05:55

2 stops20h 05m

£866

LondonPadang

LGW - PDG

LGWPDG

London Gatwick

Thu 12/11

20:25-11:15

2 stops55h 50m

Padang Tabing

Mon 16/11

12:00-06:40

2 stops25h 40m

£870

Flights are sorted by cheapest return flights first.

Deals found on 7/6

Showing 1-10 of 47 resultsSorted by cheapest first
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Best time to book a flight from London to Sumatra

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

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

Currently, May is the cheapest month in which you can book a flight from London to Sumatra (average of £360). Flying from London to Sumatra in July is currently the most expensive (average of £1,007). 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 10 June 2026.
Get a feel of what it's like to fly with Singapore Airlines and Etihad Airways from London 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
1,539 reviews
Check prices

Crew

8.6

Comfort

8.0

Overall

8.2

Boarding

8.3

Entertainment

8.1

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.
Singapore Airlines
8.2
Very Good
1,539 reviews
Singapore Airlines
8.2
Very Good
1,539 reviews
Check prices

Crew

8.6

Comfort

8.0

Overall

8.2

Boarding

8.3

Entertainment

8.1

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.
Etihad Airways
7.3
Good
1,452 reviews
Singapore Airlines
8.2
Very Good
1,539 reviews
Check prices

Crew

8.6

Comfort

8.0

Overall

8.2

Boarding

8.3

Entertainment

8.1

Food

7.8

Reviews

1 / 20
10.0
Excellent

Wee Keng,May 2026

SIN - MNL

Was upgraded to Premium Economy seat as PPS member. SQ steward team prepared birthday cake for a colleague which I requested and didn’t follow up. Great service and a great way to fly.

Related info for your journey

Find useful and relevant information for your journey from London 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 to Sumatra?

    A quick flight from London to Sumatra can take about 24h 35m. Singapore Airlines provides one of the quickest options available for as low as £881. The distance from London to Sumatra is about 6416 mi. This flight may include one or multiple stops.

  • What are the most popular routes from London to Sumatra?

    While some choose either London Gatwick - Medan Kuala Namu Intl or London City - Medan Kuala Namu Intl, London Heathrow - Medan Kuala Namu Intl is the most popular route from London to Sumatra.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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 to Sumatra?

    Currently, May is the cheapest month in which you can book a flight from London to Sumatra (average of £360). Flying from London to Sumatra in July is currently the most expensive (average of £1,007). 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 London to Sumatra

Discover the top 3 airlines that operate flights from London 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 10 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest£474Average£787FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Malaysia AirlinesCheapest£546Average£698FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Singapore AirlinesCheapest£576Average£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 London to Sumatra?

Deals for London to Sumatra flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

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

Can Cheapflights find flights from London to Sumatra with no change fees?

Yes, we can. To see specific flights from London to Sumatra with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Sumatra from London today and book when prices fit your budget.

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