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Cheap flights from London to Sumatra from £543

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KNO
15 Feb — 22 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Sumatra

Keep the following information in mind while searching for London to Sumatra flight deals. Data was last updated 16 January 2026.

Round-trip from

£543

Popular in

December

Cheapest in

November

Average price

£600
Etihad Airways
  • Etihad Airways
  • 25/4-17/5
  • 2 total stops
  • 43h 40m total
  • London to Sumatra
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 5% potential price decrease (£30 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Find 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 16 January 2026.

Sat 25/409:30
LHR
-
KNO
1 stop15h 35m
Etihad Airways
Sun 17/508:55
KNO
-
LHR
1 stop28h 05m
Etihad Airways
Deal found 15/1£543
Wed 4/320:55
LHR
-
KNO
1 stop26h 45m
Etihad Airways
Sun 8/308:40
KNO
-
LHR
1 stop29h 00m
Etihad Airways
Deal found 14/1£551
Sat 25/410:15
LGW
-
KNO
1 stop15h 45m
Singapore Airlines
Sun 17/508:50
KNO
-
LGW
1 stop28h 05m
Singapore Airlines
Deal found 15/1£559
Wed 22/420:50
LHR
-
KNO
1 stop28h 15m
Etihad Airways
Sun 17/508:55
KNO
-
LHR
1 stop15h 50m
Etihad Airways
Deal found 15/1£564
Wed 11/321:45
LHR
-
KNO
1 stop27h 15m
Singapore Airlines
Wed 25/320:30
KNO
-
LHR
1 stop29h 40m
Singapore Airlines
Deal found 15/1£571
Sat 25/418:35
LGW
-
KNO
2 stops31h 25m
Multiple Airlines
Sun 17/516:00
KNO
-
LGW
2 stops22h 25m
Multiple Airlines
Deal found 15/1£575
Wed 11/309:20
LGW
-
KNO
1 stop27h 20m
Singapore Airlines
Wed 25/308:50
KNO
-
LGW
1 stop28h 35m
Singapore Airlines
Deal found 15/1£576
Sat 25/417:50
LHR
-
KNO
2 stops32h 10m
Multiple Airlines
Sun 17/516:00
KNO
-
LHR
2 stops22h 40m
Multiple Airlines
Deal found 15/1£602
Mon 19/1017:50
LHR
-
KNO
2 stops32h 10m
Lufthansa
Sat 31/1008:50
KNO
-
LHR
2 stops30h 55m
Lufthansa
Deal found 15/1£617
Tue 10/313:45
LHR
-
KNO
2 stops22h 55m
SWISS
Tue 24/320:30
KNO
-
LHR
2 stops23h 30m
SWISS
Deal found 15/1£624
Mon 9/320:55
LHR
-
KNO
1 stop26h 45m
Etihad Airways
Mon 23/318:00
KNO
-
LHR
2 stops49h 05m
Etihad Airways
Deal found 15/1£636
Tue 10/317:40
LCY
-
KNO
2 stops19h 00m
SWISS
Tue 24/320:30
KNO
-
LCY
2 stops23h 25m
SWISS
Deal found 15/1£643

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 16 January 2026.
Use the filters below to find and compare flights from London to Sumatra that are best for you.

Fly from

London

Fly to

Sumatra

Route

Depart

Return

Price

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Wed 4/3

20:55-06:40

1 stop26h 45m

Medan Kuala Namu Intl

Sun 8/3

08:40-06:40

1 stop29h 00m

£551

LondonMedan

LGW - KNO

LGWKNO

London Gatwick

Sat 25/4

10:15-08:00

1 stop15h 45m

Medan Kuala Namu Intl

Sun 17/5

08:50-06:55

1 stop28h 05m

£559

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Tue 28/4

09:30-07:05

1 stop15h 35m

Medan Kuala Namu Intl

Fri 15/5

08:55-18:45

1 stop15h 50m

£564

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Tue 28/4

09:30-07:05

1 stop15h 35m

Medan Kuala Namu Intl

Wed 20/5

08:55-18:45

1 stop15h 50m

£564

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Thu 23/4

09:30-07:05

1 stop15h 35m

Medan Kuala Namu Intl

Sun 17/5

08:55-18:45

1 stop15h 50m

£564

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Mon 27/4

20:50-07:05

1 stop28h 15m

Medan Kuala Namu Intl

Sun 17/5

08:55-18:45

1 stop15h 50m

£564

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Tue 10/3

13:45-19:40

2 stops22h 55m

Medan Kuala Namu Intl

Tue 24/3

20:30-13:00

2 stops23h 30m

£624

LondonMedan

LHR - KNO

LHRKNO

London Heathrow

Wed 11/3

13:45-19:40

2 stops22h 55m

Medan Kuala Namu Intl

Tue 24/3

20:30-08:05

2 stops18h 35m

£624

LondonMedan

LCY - KNO

LCYKNO

London City

Wed 11/3

17:40-19:40

2 stops19h 00m

Medan Kuala Namu Intl

Tue 24/3

20:30-08:45

2 stops19h 15m

£643

LondonMedan

LCY - KNO

LCYKNO

London City

Tue 10/3

17:40-19:40

2 stops19h 00m

Medan Kuala Namu Intl

Tue 24/3

20:30-12:55

2 stops23h 25m

£643

Flights are sorted by cheapest return flights first.

Deals found on 14/1

Showing 1-10 of 30 results
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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 £235). Flying from London to Sumatra in July is currently the most expensive (average of £736). 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 16 January 2026.
Get a feel of what it's like to fly with Singapore Airlines, Etihad Airways, andMalaysia Airlines 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
8.1
Very Good
1,431 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.8

Overall

8.1

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
8.1
Very Good
1,431 reviews
Singapore Airlines
8.1
Very Good
1,431 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.8

Overall

8.1

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
1,370 reviews
Singapore Airlines
8.1
Very Good
1,431 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.8

Overall

8.1

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
7.3
Good
289 reviews
Singapore Airlines
8.1
Very Good
1,431 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.8

Overall

8.1

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 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 15h 45m. Etihad Airways provides one of the quickest options available for as low as £559. The distance from London to Sumatra is about 6408 mi. This flight may include one or multiple stops.

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

    While some choose either London Stansted - Padang Tabing or London Gatwick - 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 £235). Flying from London to Sumatra in July is currently the most expensive (average of £736). 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

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Alternative routes for London to Sumatra

See prices for flight routes from nearby airports that may be better suited for you.
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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 16 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Malaysia AirlinesCheapest£235Average£656FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Etihad AirwaysCheapest£475Average£595FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Singapore AirlinesCheapest£575Average£749FlexibilityNo 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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