Find flights
When to book
Airlines
FAQs

Cheap flights from Koh Samui to London from £307

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 18/12. Fares are subject to change and may not be available on all flights or dates of travel.
USM — LON
16 dec. — 23 dec.1
1 adult

Cheap flight deals from Koh Samui to London

Discover tips and strategies to find the most affordable flight options for your journey from Koh Samui (USM) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 december 2024.

Round-trip from

£790

One-way from

£307

Popular in

March

Cheapest in

October

Average price

£1,068
22/12-11/1
  • 22/12-11/1
  • 6 total stops
  • 64h 05m total
  • Koh Samui to London
18/12
  • 18/12
  • 2 total stops
  • 31h 10m total
  • Koh Samui to London
High demand for flights, 1% potential price rise
Best time to find cheap flights, 3% potential price drop
Average for round-trip flights in December 2024

Find flight deals from Koh Samui to London

Cheapest flights from Koh Samui to London
Explore the most affordable flight options available from Koh Samui to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 december 2024.

søn. 22/1210:50USM - LGW
3 stops32h 10mMultiple Airlines
lør. 11/106:35LGW - USM
3 stops31h 55mMultiple Airlines
Deal found 10/12£790
lør. 21/1219:00USM - LHR
2 stops24h 05mMultiple Airlines
ons. 8/116:05LHR - USM
2 stops20h 45mMultiple Airlines
Deal found 10/12£970
søn. 22/1207:55USM - LHR
1 stop18h 25mEVA Air
lør. 11/121:20LHR - USM
1 stop16h 35mEVA Air
Deal found 10/12£1,075
søn. 22/1217:40USM - LHR
2 stops31h 45mOman Air
lør. 11/120:05LHR - USM
2 stops17h 40mOman Air
Deal found 10/12£1,092
lør. 21/1216:25USM - LCY
2 stops27h 15mSWISS
ons. 8/109:25LCY - USM
2 stops18h 15mSWISS
Deal found 10/12£1,251
lør. 21/1209:20USM - LHR
2 stops19h 20mSWISS
lør. 28/1208:55LHR - USM
2 stops29h 10mSWISS
Deal found 10/12£1,297
søn. 22/1217:05USM - LGW
1 stop19h 25mBritish Airways
lør. 11/121:15LGW - USM
1 stop16h 30mBritish Airways
Deal found 10/12£1,391
lør. 21/1213:25USM - LHR
1 stop23h 50mQantas Airways
lør. 28/1220:10LHR - USM
1 stop17h 55mQantas Airways
Deal found 10/12£1,420
lør. 21/1216:25USM - LGW
2 stops26h 15mEmirates
lør. 28/1213:35LGW - USM
2 stops21h 40mEmirates
Deal found 10/12£1,751
lør. 21/1213:20USM - LGW
1 stop24h 00mSingapore Airlines
lør. 28/1209:20LGW - USM
1 stop26h 05mSingapore Airlines
Deal found 10/12£1,903
lør. 21/1213:55USM - LHR
2 stops22h 35mCathay Pacific
lør. 28/1217:50LHR - USM
1 stop18h 45mCathay Pacific
Deal found 10/12£2,662
søn. 22/1216:25USM - LCY
2 stops24h 00mMultiple Airlines
lør. 11/112:20LCY - USM
2 stops21h 40mMultiple Airlines
Deal found 10/12£3,685

Find flights from Koh Samui to London within your budget

Customise your flight search to find flights from Koh Samui to London 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 886,240 searches. Data last updated 11 december 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Koh SamuiLondon

USM - LGW

USMLGW

Ko Samui

søn. 22/12

10:50-12:00

3 stops32h 10m

London Gatwick

lør. 11/1

06:35-21:30

3 stops31h 55m

£790

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

man. 10/3

13:25-08:05

2 stops25h 40m

London Heathrow

man. 24/3

06:00-15:35

2 stops26h 35m

£800

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

fre. 24/1

16:30-18:25

2 stops32h 55m

London Heathrow

fre. 31/1

20:05-10:35

2 stops31h 30m

£928

Koh SamuiLondon

USM - LCY

USMLCY

Ko Samui

man. 10/3

10:00-08:35

2 stops29h 35m

London City

man. 24/3

13:30-15:35

2 stops19h 05m

£943

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

man. 10/3

08:30-19:20

1 stop17h 50m

London Heathrow

man. 24/3

21:20-07:45

1 stop27h 25m

£948

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

fre. 24/1

19:25-15:35

1 stop27h 10m

London Heathrow

fre. 31/1

10:55-08:00

1 stop38h 05m

£1,003

Koh SamuiLondon

USM - LGW

USMLGW

Ko Samui

man. 10/3

11:45-06:20

1 stop25h 35m

London Gatwick

man. 24/3

09:25-10:50

1 stop18h 25m

£1,081

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

lør. 21/12

09:20-21:40

2 stops19h 20m

London Heathrow

lør. 28/12

08:55-21:05

2 stops29h 10m

£1,297

Koh SamuiLondon

USM - LGW

USMLGW

Ko Samui

søn. 22/12

17:05-05:30

1 stop19h 25m

London Gatwick

lør. 11/1

21:15-20:45

1 stop16h 30m

£1,391

Koh SamuiLondon

USM - LHR

USMLHR

Ko Samui

lør. 21/12

13:25-06:15

1 stop23h 50m

London Heathrow

lør. 28/12

20:10-21:05

1 stop17h 55m

£1,420

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Koh Samui to London

Have a flexible travel schedule? Discover the best time to fly to London from Koh Samui 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.

Travel insights for flights from Koh Samui to London

Get recent, data-driven insights about flights from Koh Samui to London including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from USM to LON?

Find hourly flight availability from Koh Samui to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 december 2024.

When flying from Koh Samui to London, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 12% versus a flight in the afternoon.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 11 december 2024.
Peruse reviews from past customers who have flown with Singapore Airlines and SWISS from Koh Samui to London to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.4
Very Good
1,286 reviews

Food

8.0

Comfort

8.2

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.4
Very Good
1,286 reviews
8.4
Very Good
1,286 reviews

Food

8.0

Comfort

8.2

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.1
Very Good
3,437 reviews
8.4
Very Good
1,286 reviews

Food

8.0

Comfort

8.2

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

8.1
Very Good
1,334 reviews
8.4
Very Good
1,286 reviews

Food

8.0

Comfort

8.2

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

7.8
Good
1,348 reviews
8.4
Very Good
1,286 reviews

Food

8.0

Comfort

8.2

Crew

8.6

Boarding

8.4

Entertainment

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Related info for your journey

Find useful and relevant information for your journey from Koh Samui to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from Koh Samui to London?

    If you book a flight to London from Koh Samui, you will be flying from Ko Samui, which is the city’s only airport. Ko Samui (USM) is located 2.1 mi from the center of Koh Samui. There are 0 flights from Ko Samui to London per day from 0 different airlines.

  • What are the cheapest airlines flying from Koh Samui to London round-trip?

    According to our current data, Oman Air (£928), SWISS (£943), and EVA Air (£948) offers the cheapest pricing from Koh Samui to London.

  • What are the cheapest airlines to fly from Koh Samui to London one-way?

    £470 is the cheapest one-way deal found within the past few days, from Qatar Airways. You may also be able to find cheap deals on EVA Air and Singapore Airlines, with prices starting from £511 and £550, respectively.

  • What are the most popular routes from Koh Samui to London?

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

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

  • How can I find direct flights from Koh Samui to London?

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

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

    Yes. Cheapflights offers flight deals from Koh Samui to London 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 Koh Samui to London?

    Currently, January is the cheapest month in which you can book a flight from Koh Samui to London (average of £112). Flying from Koh Samui to London in July is currently the most expensive (average of £160). 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.

Alternative routes for Koh Samui to London

See prices for flight routes from nearby airports that may be better suited for you.