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Cheap flights from Koh Samui to London Heathrow Airport from £328

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
USM — LHR
4 Nov — 11 Nov1
1 adult

Cheap flight deals from Koh Samui to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Koh Samui (USM) to Heathrow (LHR). 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 30 October 2024.

Round-trip from

£1,009

One-way from

£328
Oman Air
  • Oman Air
  • 5/12-7/12
  • 4 total stops
  • 66h 50m total
  • Koh Samui to London
Search Deals
18/11
  • 18/11
  • 2 total stops
  • 25h 55m total
  • Koh Samui to London
Search Deals

Find flight deals from Koh Samui to Heathrow

Cheapest flights from Koh Samui to Heathrow
Explore the most affordable flight options available from Koh Samui to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2024.

Thu 5/1221:30USM - LHR
2 stops27h 55mEtihad Airways
Sat 7/1219:20LHR - USM
2 stops29h 50mEtihad Airways
Deal found 28/10£750
Wed 27/1113:25USM - LHR
2 stops32h 20mMultiple Airlines
Wed 4/1221:50LHR - USM
2 stops37h 25mMultiple Airlines
Deal found 28/10£878
Wed 27/1109:20USM - LHR
1 stop17h 00mEVA Air
Wed 4/1221:20LHR - USM
1 stop16h 20mEVA Air
Deal found 28/10£989
Thu 5/1214:05USM - LHR
2 stops35h 20mOman Air
Sat 7/1220:05LHR - USM
2 stops31h 30mOman Air
Deal found 29/10£1,009
Wed 27/1113:45USM - LHR
2 stops22h 45mCathay Pacific
Wed 4/1217:50LHR - USM
1 stop18h 45mCathay Pacific
Deal found 28/10£1,567

Find flights from Koh Samui to Heathrow within your budget

Customise your flight search to find flights from Koh Samui to Heathrow 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 1,015,184 searches. Data last updated 30 October 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£1,009 - £1,692

Route

Depart

Return

Price

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Thu 5/12

2 stops35h 20m

London Heathrow

Sat 7/12

2 stops31h 30m

£1,009

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Thu 5/12

1 stop17h 00m

London Heathrow

Sat 7/12

1 stop16h 20m

£1,080

Ko SamuiLondon Heathrow

USM - LHR

USMLHR

Ko Samui

Thu 5/12

1 stop34h 20m

London Heathrow

Sat 7/12

2 stops20h 05m

£1,692

Flights are sorted by cheapest first

Deals found on 29/10

Best time to book a flight from Koh Samui to Heathrow

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

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

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

Find hourly flight availability from Koh Samui to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2024.

It’s typically best to fly out from Koh Samui to London Heathrow Airport at midday. Doing so could potentially save you 10% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Heathrow by month

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

In terms of precipitation, rainfall in London Heathrow Airport 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 Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

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

If weather is an important factor for your trip to London Heathrow Airport, 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 Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 30 October 2024.
EVA Air
8.4
Very Good
1,329 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.0

Comfort

8.2

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.

EVA Air
8.4
Very Good
1,329 reviews
EVA Air
8.4
Very Good
1,329 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.0

Comfort

8.2

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.

KLM
7.8
Good
1,352 reviews
EVA Air
8.4
Very Good
1,329 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.0

Comfort

8.2

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.

Thai Airways
7.8
Good
378 reviews
EVA Air
8.4
Very Good
1,329 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.0

Comfort

8.2

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.

Cathay Pacific
7.6
Good
874 reviews
EVA Air
8.4
Very Good
1,329 reviews
Check prices

Entertainment

8.0

Crew

8.6

Boarding

8.4

Overall

8.4

Food

8.0

Comfort

8.2

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 Heathrow. 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 Heathrow?

    For a flight from Koh Samui to London Heathrow, you will be flying from Ko Samui. Ko Samui (USM) is just 2.1 mi from the center of the city. Ko Samui is the only Koh Samui airport and it handles 0 outbound flights to London Heathrow per day. 0 airlines have flights to London Heathrow from Ko Samui on a regular basis.

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

    Our cheapest airline available from Koh Samui to London Heathrow Airport is Oman Air. Our recent data shows that you can find tickets from as low as £1,009 on this airline. An additional option worth looking into is Cathay Pacific, starting at £1,692.

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

    The cheapest airline one-way is Etihad Airways, with whom users have recently found tickets for as low as £403. However, be on the lookout for offers from EVA Air and Thai Airways, as they are both options that can get you from Koh Samui to London Heathrow Airport for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Koh Samui to Heathrow 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 Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Koh Samui to London Heathrow Airport (average of £112). Flying from Koh Samui to London Heathrow Airport in July is currently the most expensive (average of £159). 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.

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Can Cheapflights find flights from Koh Samui to Heathrow with no change fees?

Need flexible booking options for your flight to Heathrow from Koh Samui? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Koh Samui to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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