฿17,620 Cheap Flights from Samui Intl. Airport (USM) to London (LHR)

View ฿17,620 flight on Wed, 15 Oct 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at ฿17,620 for one-way flights and ฿35,350 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Tue, 16 Sep - Tue, 23 Sep
USM
Koh Samui
LHR
London
฿35,350 Return, found 2 days ago
฿35,350
Return
found 2 days ago
Select Bangkok Airways flight, departing Tue, 16 Sep from Koh Samui to London, returning Tue, 23 Sep, priced at ฿35,350 found 2 days ago
Swiss International Air Lines
Tue, 16 Sep - Tue, 23 Sep
USM
Koh Samui
LHR
London
฿35,360 Return, found 2 days ago
฿35,360
Return
found 2 days ago
Select Swiss International Air Lines flight, departing Tue, 16 Sep from Koh Samui to London, returning Tue, 23 Sep, priced at ฿35,360 found 2 days ago
Swiss International Air Lines
Tue, 16 Sep - Tue, 23 Sep
USM
Koh Samui
LHR
London
฿36,560 Return, found 2 days ago
฿36,560
Return
found 2 days ago
Select Swiss International Air Lines flight, departing Tue, 16 Sep from Koh Samui to London, returning Tue, 23 Sep, priced at ฿36,560 found 2 days ago
Bangkok Airways
Mon, 3 Nov - Sat, 15 Nov
USM
Koh Samui
LHR
London
฿36,945 Return, found 5 days ago
฿36,945
Return
found 5 days ago
Select Bangkok Airways flight, departing Mon, 3 Nov from Koh Samui to London, returning Sat, 15 Nov, priced at ฿36,945 found 5 days ago
Austrian Airlines
Tue, 16 Sep - Tue, 23 Sep
USM
Koh Samui
LHR
London
฿38,640 Return, found 2 days ago
฿38,640
Return
found 2 days ago
Select Austrian Airlines flight, departing Tue, 16 Sep from Koh Samui to London, returning Tue, 23 Sep, priced at ฿38,640 found 2 days ago
EVA Airways
Sun, 21 Sep - Thu, 2 Oct
USM
Koh Samui
LHR
London
฿39,370 Return, found 4 days ago
฿39,370
Return
found 4 days ago
Select EVA Airways flight, departing Sun, 21 Sep from Koh Samui to London, returning Thu, 2 Oct, priced at ฿39,370 found 4 days ago
Thai Airways International
Tue, 16 Sep - Tue, 23 Sep
USM
Koh Samui
LHR
London
฿40,940 Return, found 2 days ago
฿40,940
Return
found 2 days ago
Select Thai Airways International flight, departing Tue, 16 Sep from Koh Samui to London, returning Tue, 23 Sep, priced at ฿40,940 found 2 days ago
Qatar Airways
Tue, 30 Sep - Tue, 7 Oct
USM
Koh Samui
LHR
London
฿41,235 Return, found 8 hours ago
฿41,235
Return
found 8 hours ago
Select Qatar Airways flight, departing Tue, 30 Sep from Koh Samui to London, returning Tue, 7 Oct, priced at ฿41,235 found 8 hours ago
Oman Air
Sat, 6 Dec - Sun, 4 Jan
USM
Koh Samui
LHR
London
฿41,980 Return, found 3 days ago
฿41,980
Return
found 3 days ago
Select Oman Air flight, departing Sat, 6 Dec from Koh Samui to London, returning Sun, 4 Jan, priced at ฿41,980 found 3 days ago
Etihad Airways
Sun, 9 Nov - Sat, 15 Nov
USM
Koh Samui
LHR
London
฿43,495 Return, found 5 days ago
฿43,495
Return
found 5 days ago
Select Etihad Airways flight, departing Sun, 9 Nov from Koh Samui to London, returning Sat, 15 Nov, priced at ฿43,495 found 5 days ago
Flight from Samui Intl. Airport to London route information
Origin airport
Samui Intl. Airport
Destination airport
Heathrow
Airlines serving
Air France, Austrian Airlines, British Airways, Cathay Pacific, EVA Airways, Etihad Airways, KLM, Oman Air, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Thai Airways International
Return price
฿35,350
Distance
9836 km

Perfect flights from Samui Intl. Airport to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Samui Intl. Airport to London. 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 Samui Intl. Airport to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from ฿17,620 and roundtrip prices from ฿35,350. 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 Heathrow 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 London.

Frequently asked questions

How much is a flight from USM to LHR?
Based on fares quoted within the last 7 days on Expedia for flights departing within the next year, round-trip journeys from Ko Samui Airport to LHR start from ฿35,350. Make your booking ASAP to score the best price for your adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Samui Airport to London Heathrow?
We understand that circumstances change unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from USM to Heathrow Airport (LHR) 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 USM to LHR flights, you'll see a "no change fees" filter for you to select.
How far is the flight from USM to LHR?
The distance is around 9,900 kilometres, so pack your carry-on luggage with everything you need to make the long journey comfortable. Not sure what to take on board your Koh Samui to Hounslow flight? A neck pillow, earplugs and a sleep mask are among the essentials.
Which airlines fly direct from USM to London Heathrow?
Unfortunately, there aren't any airlines that directly fly between Ko Samui Airport and LHR. You'll need to book a flight with at least one stop.
Are Ko Samui Airport to LHR flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally nab a bargain, with some super cheap airfares from USM to LHR appearing a few weeks prior to the departure date. If you'd rather book ahead of time, Expedia compares and updates the best flight deals regularly — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines quote prices so far in advance.

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