CA $815 Cheap Flights from London (LGW) to Samui Intl. Airport (USM)

View CA $815 flight on Mon, Nov. 10, 2025Opens in a new window

Popular airlines from Gatwick Airport (LGW) to Samui Intl. Airport (USM)

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Cheap flights from London (LGW) to Samui Intl. Airport (USM)

Prices were available within the past 7 days and start at CA $815 for one-way flights and CA $1,850 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Mon, Aug. 25 - Wed, Sep. 10
LGW
London
USM
Koh Samui
CA $1,850 Roundtrip, found 1 day ago
CA $1,850
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Mon, Aug. 25 from London to Koh Samui, returning Wed, Sep. 10, priced at CA $1,850 found 1 day ago
Emirates
Mon, Aug. 25 - Wed, Sep. 10
LGW
London
USM
Koh Samui
CA $1,923 Roundtrip, found 1 day ago
CA $1,923
Roundtrip
found 1 day ago
Select Emirates flight, departing Mon, Aug. 25 from London to Koh Samui, returning Wed, Sep. 10, priced at CA $1,923 found 1 day ago
Turkish Airlines
Mon, Aug. 25 - Wed, Sep. 10
LGW
London
USM
Koh Samui
CA $2,029 Roundtrip, found 1 day ago
CA $2,029
Roundtrip
found 1 day ago
Select Turkish Airlines flight, departing Mon, Aug. 25 from London to Koh Samui, returning Wed, Sep. 10, priced at CA $2,029 found 1 day ago
Singapore Airlines
Mon, Aug. 25 - Wed, Sep. 10
LGW
London
USM
Koh Samui
CA $2,672 Roundtrip, found 1 day ago
CA $2,672
Roundtrip
found 1 day ago
Select Singapore Airlines flight, departing Mon, Aug. 25 from London to Koh Samui, returning Wed, Sep. 10, priced at CA $2,672 found 1 day ago
Flight from London to Samui Intl. Airport (LGW - USM) route information
Origin airport
Gatwick
Destination airport
Samui Intl. Airport
Roundtrip price
CA $1,850
Distance
9826 km

Gatwick to Koh Samui Flights

The easy way to book your flights from London to Samui Intl. Airport 

With Expedia, it’s simple to find and book flights to Samui Intl. Airport from London whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Samui Intl. Airport, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from London to Samui Intl. Airport today, tomorrow, or this week.  

 

Save dollars with cheap flights from Gatwick, LGW to Samui Intl. Airport, USM 

Sort your search results by price to find great deals on your flight from London to Samui Intl. Airport—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Samui Intl. Airport from London currently is just CA $1,850 rising to CA $2,672.  

Here are more money-saving tips: 

  • Fly in August when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Samui Intl. Airport  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Samui Intl. Airport from London 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Samui Intl. Airport with Expedia today.

Frequently asked questions

How much is a flight from LGW to USM?
Round-trip journeys between Gatwick Airport (LGW) and Ko Samui Airport (USM) start from CA $1,850. This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from London Gatwick to Ko Samui Airport (USM)?
This differs from airline to airline, as each has its own set of terms and conditions. Head to the Customer Service Portal, where you'll find simple instructions on how to cancel online.
How do I find cheap flights from Gatwick Airport (LGW) to USM that have flexible change policies?
Many carriers will allow you to move your flight at no extra charge. All you pay is the fare difference. When searching for Gatwick Airport (LGW) to Ko Samui Airport flights, you'll find a "No change fees" filter for you to select.
How many hours is the flight from London Gatwick to Ko Samui Airport?
To get through the 13 hours and 6 minutes flight time between London Gatwick and Ko Samui Airport (USM), it's smart to come prepared. A smartphone filled with your favourite songs is an excellent start.
How far is the flight from London Gatwick to USM?
The distance is around 9,900 kilometres. Eye mask? Check. Warm clothes? Double check. We recommend you pack all the essentials for this long-haul Gatwick to Koh Samui flight.
Which airlines fly direct from LGW to Ko Samui Airport?
Direct flights aren't available, so you'll need to make at least one stop between Gatwick Airport (LGW) and Ko Samui Airport (USM). Make the most of the layover time to stretch your legs and grab a coffee.
Are Gatwick Airport (LGW) to USM flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from London Gatwick to USM can be hit-or-miss. You might be lucky and score a bargain, but you could also miss out completely! If you'd rather play it safe and start planning your trip early on, Expedia compares flight deals up to a year in advance. Just keep in mind that not all airlines issue their prices that far in advance. Our advice? Check back often as prices are updated frequently.

Explore a world of travel with Expedia

London nearby Airports

London

Heathrow to Samui Intl. Airport
CA $1,492.20
*Available to Expedia members.