฿20,210 Cheap Flights from London (LHR) to Samui Intl. Airport (USM)

View ฿20,210 flight on Thu, 26 Feb 2026Opens in a new window

Popular airlines from Heathrow Airport (LHR) to Samui Intl. Airport (USM)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from London (LHR) to Samui Intl. Airport (USM)

Prices were available within the past 7 days and start at ฿20,210 for one-way flights and ฿28,930 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Austrian Airlines
Mon, 9 Mar - Mon, 16 Mar
LHR
London
USM
Koh Samui
฿28,930 Return, found 1 day ago
฿28,930
Return
found 1 day ago
Select Austrian Airlines flight, departing Mon, 9 Mar from London to Koh Samui, returning Mon, 16 Mar, priced at ฿28,930 found 1 day ago
Austrian Airlines
Mon, 9 Mar - Mon, 16 Mar
LHR
London
USM
Koh Samui
฿30,160 Return, found 1 day ago
฿30,160
Return
found 1 day ago
Select Austrian Airlines flight, departing Mon, 9 Mar from London to Koh Samui, returning Mon, 16 Mar, priced at ฿30,160 found 1 day ago
Swiss International Air Lines
Mon, 9 Mar - Mon, 16 Mar
LHR
London
USM
Koh Samui
฿32,560 Return, found 1 day ago
฿32,560
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Mon, 9 Mar from London to Koh Samui, returning Mon, 16 Mar, priced at ฿32,560 found 1 day ago
Lufthansa
Wed, 5 Nov - Thu, 4 Dec
LHR
London
USM
Koh Samui
฿33,095 Return, found 2 days ago
฿33,095
Return
found 2 days ago
Select Lufthansa flight, departing Wed, 5 Nov from London to Koh Samui, returning Thu, 4 Dec, priced at ฿33,095 found 2 days ago
Swiss International Air Lines
Mon, 9 Mar - Mon, 16 Mar
LHR
London
USM
Koh Samui
฿33,785 Return, found 1 day ago
฿33,785
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Mon, 9 Mar from London to Koh Samui, returning Mon, 16 Mar, priced at ฿33,785 found 1 day ago
Lufthansa
Wed, 5 Nov - Thu, 4 Dec
LHR
London
USM
Koh Samui
฿33,845 Return, found 2 days ago
฿33,845
Return
found 2 days ago
Select Lufthansa flight, departing Wed, 5 Nov from London to Koh Samui, returning Thu, 4 Dec, priced at ฿33,845 found 2 days ago
Etihad Airways
Wed, 4 Mar - Sun, 15 Mar
LHR
London
USM
Koh Samui
฿34,440 Return, found 2 days ago
฿34,440
Return
found 2 days ago
Select Etihad Airways flight, departing Wed, 4 Mar from London to Koh Samui, returning Sun, 15 Mar, priced at ฿34,440 found 2 days ago
Lufthansa
Thu, 30 Apr - Sat, 23 May
LHR
London
USM
Koh Samui
฿37,395 Return, found 3 days ago
฿37,395
Return
found 3 days ago
Select Lufthansa flight, departing Thu, 30 Apr from London to Koh Samui, returning Sat, 23 May, priced at ฿37,395 found 3 days ago
EVA Airways
Mon, 9 Mar - Mon, 16 Mar
LHR
London
USM
Koh Samui
฿38,070 Return, found 1 day ago
฿38,070
Return
found 1 day ago
Select EVA Airways flight, departing Mon, 9 Mar from London to Koh Samui, returning Mon, 16 Mar, priced at ฿38,070 found 1 day ago
Austrian Airlines
Mon, 9 Mar - Mon, 16 Mar
LHR
London
USM
Koh Samui
฿38,185 Return, found 1 day ago
฿38,185
Return
found 1 day ago
Select Austrian Airlines flight, departing Mon, 9 Mar from London to Koh Samui, returning Mon, 16 Mar, priced at ฿38,185 found 1 day ago

Frequently asked questions

How much is a flight from Heathrow Airport to USM?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight between London Heathrow and Samui Airport was ฿28,930. Cheap tickets don't hang around, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from LHR to Ko Samui Airport?
This differs from airline to airline, as each has its own set of terms and conditions. Head to the Customer Service Portal, where there are easy instructions on how to cancel online.
How do I find cheap flights from Heathrow Airport (LHR) to Ko Samui Airport (USM) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for London Heathrow to Ko Samui Airport (USM) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from London Heathrow to Ko Samui Airport (USM)?
The distance is around 9,900 kilometres, so fill your carry-on luggage with all you need to make the long journey comfortable. Wondering what to take on board your Hounslow to Koh Samui flight? Earplugs, a sleep mask and a neck pillow are a few essentials.
Which airlines fly direct from Heathrow Airport (LHR) to Ko Samui Airport?
There are no direct flights, so you'll have to make at least one stop between Heathrow Airport and Samui Airport. Make the most of the layover time to stretch your legs and grab a coffee.
Are LHR to Ko Samui Airport (USM) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from LHR to Ko Samui Airport (USM) at the last minute could be your ticket to an awesome deal. However, it could end up costing a great deal more! If you'd rather avoid the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated all the time on Expedia.

Travel information

Origin airport
Heathrow
Destination airport
Samui Intl. Airport
Airlines serving
Air France, Austrian Airlines, British Airways, Cathay Pacific, EVA Airways, Etihad Airways, KLM, Lufthansa, Qatar Airways, Swiss International Air Lines, Thai Airways International
Return price
฿28,930
Distance
9836 km

Book with confidence

Perfect flights from London to Samui Intl. Airport

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from London to Samui Intl. Airport. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Heathrow to Samui Intl. Airport ticket options cater to your travel preferences, with incredible one-way fares from ฿20,210 and roundtrip prices from ฿28,930. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Samui Intl. Airport and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Samui Intl. Airport.
Perfect flights from London to Samui Intl. Airport

Explore a world of travel with Expedia

*Available to Expedia members.