LGW - USM

£306 Find Cheap Flights from London Gatwick Airport to Ko Samui – Compare and Save

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Everything you should know

Cheapest return flight
£671
Typical prices: £745-£982
Multiple Airlines
Tue 6/11Sun 18/11
LGW - USM • 3 stops
Cheapest one-way flight
£306
Typical prices: £470-£595
Multiple Airlines
Thu 15/11
LGW - USM • 3 stops
Direct flights
Not available
There are currently no direct flights between London Gatwick Airport and Ko Samui. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
23 weeks
in advance
Our data shows that travellers who book at least 23 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
May
Cheapest • 19% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Bangkok Suvarnabhumi (BKK)
Cheapest • Avg £909 (return)
Phuket City (HKT)
Shortest trip • 16h 06m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Ko Samui!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Gatwick to Ko Samui (LGW-USM)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Gatwick to Ko Samui

Tue, 3 Nov - Thu, 26 Nov
Multiple Airlines Logo
08:45 - 15:40LGW  London Gatwick-USM Ko Samui
23h 55m2 stops Sharjah Bangkok Suvarnabhumi
Multiple Airlines Logo
18:05 - 15:00USM  Ko Samui-LGW London Gatwick
27h 55m2 stops Singapore Changi Athens Eleftherios V.
£669Multiple Airlines
Fri, 6 Nov - Wed, 18 Nov
Multiple Airlines Logo
14:35 - 19:50LGW  London Gatwick-USM Ko Samui
22h 15m3 stops Václav Havel Prague Sharjah Bangkok Suvarnabhumi
Multiple Airlines Logo
18:05 - 13:10USM  Ko Samui-LGW London Gatwick
26h 05m2 stops Singapore Changi Vienna Intl
£671Multiple Airlines
Sun, 27 Sep - Wed, 7 Oct
Multiple Airlines Logo
10:00 - 20:25LGW  London Gatwick-USM Ko Samui
28h 25m2 stops Sharjah Phuket City
Multiple Airlines Logo
15:25 - 18:35USM  Ko Samui-LGW London Gatwick
33h 10m2 stops Phuket City Sharjah
£673Multiple Airlines
Tue, 2 Feb - Tue, 9 Feb
British Airways Logo
21:20 - 11:50LGW  London Gatwick-USM Ko Samui
31h 30m1 stop Bangkok Suvarnabhumi
British Airways Logo
19:40 - 05:25USM  Ko Samui-LGW London Gatwick
16h 45m1 stop Bangkok Suvarnabhumi
£788British Airways
Mon, 2 Nov - Mon, 16 Nov
British Airways Logo
21:20 - 11:50LGW  London Gatwick-USM Ko Samui
31h 30m1 stop Bangkok Suvarnabhumi
British Airways Logo
19:10 - 05:25USM  Ko Samui-LGW London Gatwick
17h 15m1 stop Bangkok Suvarnabhumi
£790British Airways
Sun, 8 Nov - Wed, 18 Nov
British Airways Logo
21:20 - 11:50LGW  London Gatwick-USM Ko Samui
31h 30m1 stop Bangkok Suvarnabhumi
British Airways Logo
19:10 - 05:25USM  Ko Samui-LGW London Gatwick
17h 15m1 stop Bangkok Suvarnabhumi
£791British Airways
Mon, 28 Sep - Wed, 21 Oct
Qatar Airways Logo
09:00 - 10:30LGW  London Gatwick-USM Ko Samui
19h 30m2 stops Doha Hamad Intl Phuket City
Qatar Airways Logo
21:00 - 06:40USM  Ko Samui-LGW London Gatwick
39h 40m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
£796Qatar Airways
Wed, 4 Nov - Thu, 19 Nov
Qatar Airways Logo
08:40 - 10:35LGW  London Gatwick-USM Ko Samui
18h 55m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
17:40 - 05:55USM  Ko Samui-LGW London Gatwick
19h 15m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
£811Qatar Airways
Sun, 15 Nov - Tue, 24 Nov
Singapore Airlines Logo
13:05 - 17:10LGW  London Gatwick-USM Ko Samui
21h 05m1 stop Singapore Changi
Singapore Airlines Logo
12:00 - 09:05USM  Ko Samui-LGW London Gatwick
28h 05m1 stop Singapore Changi
£817Singapore Airlines
Tue, 3 Nov - Thu, 26 Nov
Singapore Airlines Logo
13:05 - 17:10LGW  London Gatwick-USM Ko Samui
21h 05m1 stop Singapore Changi
Singapore Airlines Logo
18:05 - 06:25USM  Ko Samui-LGW London Gatwick
19h 20m1 stop Singapore Changi
£817Singapore Airlines
Booking Insights

Price, demand, and travel trends for London Gatwick Airport to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from London Gatwick Airport to Ko Samui with more confidence.

What's the cheapest day of the week to fly from London Gatwick Airport to Ko Samui?

Monday is the cheapest day of the week to fly from London Gatwick Airport to Ko Samui and is 9% cheaper than the average day. Friday is the most expensive day with flight prices 13% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from London Gatwick Airport to Ko Samui?

•May is the cheapest month to fly from London Gatwick Airport to Ko Samui at £672 return.
•December (£1,098) and July (£973) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 63% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from London Gatwick Airport to Ko Samui the cheapest?

Flights from London Gatwick Airport to Ko Samui are cheapest 23 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Expert advice

Expert advice for your flight from Gatwick to Ko Samui

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Icelandair

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on JetBlue

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Duncan Madden

Duncan Madden

Expert on TAP AIR PORTUGAL

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more

Key details for London Gatwick Airport to Ko Samui flights

Low season

October

Cheapest flight

£306
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (6% more expensive on average)
Flights from London Gatwick Airport to Ko Samui

When to book flights from Gatwick to Ko Samui

Are your dates flexible? Find out the best times to travel from Gatwick to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London Gatwick Airport to Ko Samui flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airports can I use when flying from London Gatwick Airport to Ko Samui?

    Flights from London Gatwick Airport to Ko Samui usually depart from London Gatwick (LGW) and arrive at Ko Samui (USM).

  • Which cabin classes can I book on flights from London Gatwick Airport to Ko Samui?

    Three cabin classes are available on flights from London Gatwick Airport to Ko Samui:

    • Economy class
    • Premium Economy Class
    • Business Class

  • Which airports do connecting flights from London Gatwick Airport to Ko Samui pass through?

    One-stop flights from London Gatwick Airport to Ko Samui most commonly connect through:

    • Bangkok Suvarnabhumi (BKK) – 81% of one-stop connections
    • Singapore Changi (SIN) – 19% of one-stop connections
    • Phuket City (HKT) – 1% of one-stop connections

    Bangkok Suvarnabhumi (BKK) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from London Gatwick Airport to Ko Samui?

    Yes. Being flexible with your travel dates can save you up to 20% on the London Gatwick Airport to Ko Samui route. Monday is the cheapest departure day at £760 return on average, while Friday is the most expensive at £945, a difference of £185. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Ko Samui?

    Some of the most popular sights in Ko Samui are Lamai Beach, Chaweng Beach, and Bophut Beach. These are among the most viewed places in Ko Samui on KAYAK.

  • How expensive are last-minute London Gatwick Airport to Ko Samui flights?

    Last-minute fares on this route (booked within 2 weeks of departure) run 32% above the route average of £832. Book 23 weeks before departure for the lowest fares.

  • How long is a flight from London Gatwick Airport to Ko Samui?

    A direct flight from London Gatwick Airport to Ko Samui takes 0h 00m, covering 6,138 miles.

  • Do I need a passport to fly from London Gatwick Airport to Ko Samui?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from London Gatwick Airport to Ko Samui changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £671 to £6,180. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from London Gatwick Airport to Ko Samui looking right now?

    One-way fares from London Gatwick Airport to Ko Samui are currently higher than usual. Average one-way flight prices are about £1,125, which is 111% above the typical average for this route.

  • How much time can I save by choosing a different stopover airport from London Gatwick Airport to Ko Samui?

    Flying via Phuket City (HKT) gives the shortest average 1-stop total travel time of 16h 06m, compared to 16h 50m via Bangkok Suvarnabhumi (BKK) and 19h 54m via Singapore Changi (SIN).

  • What is the time difference between London Gatwick Airport and Ko Samui?

    Ko Samui is 6 hours ahead of London Gatwick Airport (Indochina Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which car hire options are available at Ko Samui Airport (USM)?

    Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around £10 for economy cars. Top options include:
    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Hertz

  • How much should I expect to pay for a London Gatwick Airport to Ko Samui flight?

    Return flights from London Gatwick Airport to Ko Samui range from £745 to £982, with an average of £832 over the past 12 months. Anything below £745 counts as a good deal.

Your guide to booking London Gatwick Airport to Ko Samui flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure instead of Friday. On this route, Monday flights average £760 – about £185 less than Friday (20% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 23 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your London Gatwick Airport to Ko Samui trip for May. Fares historically average £672 return in that month – typically £425 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.
    - Ozo Chaweng Samui - Sha Extra Plus
    - Amari Koh Samui
    - Hyatt Regency Koh Samui

More options for your flight from Gatwick to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car hire

Car hire in Ko Samui
Hotels in Ko Samui
Holidays in Ko Samui