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

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 35% on select hotels after you book a flight*
  • payments icon
    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 for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Fri., 21 Mar. - Sat., 29 Mar.
LHR
London
USM
Koh Samui
AU$1,659 Return, found 5 days ago
AU$1,659
Return
found 5 days ago
Select Lufthansa flight, departing Fri., 21 Mar. from London to Koh Samui, returning Sat., 29 Mar., priced at AU$1,659 found 5 days ago
Etihad Airways
Mon., 3 Mar. - Mon., 10 Mar.
LHR
London
USM
Koh Samui
AU$1,660 Return, found 11 hours ago
AU$1,660
Return
found 11 hours ago
Select Etihad Airways flight, departing Mon., 3 Mar. from London to Koh Samui, returning Mon., 10 Mar., priced at AU$1,660 found 11 hours ago
Etihad Airways
Fri., 21 Mar. - Sat., 29 Mar.
LHR
London
USM
Koh Samui
AU$1,679 Return, found 5 days ago
AU$1,679
Return
found 5 days ago
Select Etihad Airways flight, departing Fri., 21 Mar. from London to Koh Samui, returning Sat., 29 Mar., priced at AU$1,679 found 5 days ago
Austrian Airlines
Fri., 21 Mar. - Sat., 29 Mar.
LHR
London
USM
Koh Samui
AU$1,682 Return, found 5 days ago
AU$1,682
Return
found 5 days ago
Select Austrian Airlines flight, departing Fri., 21 Mar. from London to Koh Samui, returning Sat., 29 Mar., priced at AU$1,682 found 5 days ago
Air France
Tue., 7 Oct. - Tue., 14 Oct.
LHR
London
USM
Koh Samui
AU$1,689 Return, found 3 days ago
AU$1,689
Return
found 3 days ago
Select Air France flight, departing Tue., 7 Oct. from London to Koh Samui, returning Tue., 14 Oct., priced at AU$1,689 found 3 days ago
EVA Airways
Tue., 7 Oct. - Tue., 14 Oct.
LHR
London
USM
Koh Samui
AU$1,727 Return, found 3 days ago
AU$1,727
Return
found 3 days ago
Select EVA Airways flight, departing Tue., 7 Oct. from London to Koh Samui, returning Tue., 14 Oct., priced at AU$1,727 found 3 days ago
EVA Airways
Thu., 1 May - Thu., 12 Jun.
LHR
London
USM
Koh Samui
AU$1,733 Return, found 1 day ago
AU$1,733
Return
found 1 day ago
Select EVA Airways flight, departing Thu., 1 May from London to Koh Samui, returning Thu., 12 Jun., priced at AU$1,733 found 1 day ago
Swiss International Air Lines
Fri., 21 Mar. - Sat., 29 Mar.
LHR
London
USM
Koh Samui
AU$1,736 Return, found 5 days ago
AU$1,736
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Fri., 21 Mar. from London to Koh Samui, returning Sat., 29 Mar., priced at AU$1,736 found 5 days ago
Thai Airways International
Fri., 21 Mar. - Sat., 29 Mar.
LHR
London
USM
Koh Samui
AU$1,738 Return, found 5 days ago
AU$1,738
Return
found 5 days ago
Select Thai Airways International flight, departing Fri., 21 Mar. from London to Koh Samui, returning Sat., 29 Mar., priced at AU$1,738 found 5 days ago
Thai Airways International
Tue., 7 Oct. - Tue., 14 Oct.
LHR
London
USM
Koh Samui
AU$1,742 Return, found 3 days ago
AU$1,742
Return
found 3 days ago
Select Thai Airways International flight, departing Tue., 7 Oct. from London to Koh Samui, returning Tue., 14 Oct., priced at AU$1,742 found 3 days ago
Flight from London to Samui Intl. Airport route information
Origin airport
Heathrow
Destination airport
Samui Intl. Airport
Airlines serving
British Airways, EVA Airways, Qantas Airways, Qatar Airways, Thai Airways International, Turkish Airlines
Return price
AU$1,658
Distance
9836 km

Your quick guide to flights from London to Samui Intl. Airport

Pick up great flights from London to Samui Intl. Airport

With Expedia, you have your pick of flights a day with 20 airlines covering flights from London to Samui Intl. Airport. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from London to Samui Intl. Airport that take around hours.

Find cheap flights from London to Samui Intl. Airport

From the great flight deals with prices currently ranging from AU$1,659 to AU$1,742, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from London to Samui Intl. Airport around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Samui Intl. Airport is normally in March.

Reasons to book your flight from London to Samui Intl. Airport with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from London to Samui Intl. Airport across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Samui Intl. Airport right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

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 AU$1,659. 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.
*Available to Expedia members.