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Find cheap Thai Airways flights to Ko Samui

CMH — USM
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

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Cheapest Thai Airways flights from United Kingdom to Ko Samui
Explore the most affordable Thai Airways flight options available from United Kingdom to Ko Samui. Find the lowest fares with prices last updated on 27 July 2026.

Fri 21/812:30
LHR
-
USM
1 stop18h 15m
Thai Airways
Mon 21/908:45
USM
-
LHR
1 stop16h 30m
Thai Airways
Deal found 26/7£908
Wed 26/812:30
LHR
-
USM
1 stop14h 05m
Thai Airways
Thu 24/908:45
USM
-
LHR
1 stop16h 30m
Thai Airways
Deal found 27/7£943
Fri 21/812:30
LHR
-
USM
1 stop18h 15m
Thai Airways
Sat 19/906:00
USM
-
LHR
1 stop19h 15m
Thai Airways
Deal found 26/7£1,006

Flights to Ko Samui with Thai Airways at a glance

Find detailed information about Thai Airways flights from United Kingdom to Ko Samui. Explore the options provided by Thai Airways to plan your journey from United Kingdom to Ko Samui. Data last updated 27 July 2026.

Popular in

December

Cheapest in

June

Average price

£1,001

Return from

£898

One-way from

£617
Highest demand for flights to Ko Samui with Thai Airways; 7% potential price increase.
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Best time to find cheap flights to Ko Samui with Thai Airways; 4% potential price drop.
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Average price for flights to Ko Samui with Thai Airways (return).
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Thai Airways
  • Thai Airways
  • 11/9-2/10
  • 2 total stops
  • 36h 20m total
  • United Kingdom to Ko Samui
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Thai Airways
  • Thai Airways
  • 2/10
  • 1 total stop
  • 14h 20m total
  • United Kingdom to Ko Samui
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Cheapflights Insights

Find cheap Thai Airways flights to Ko Samui

How long is the flight to Ko Samui with Thai Airways?

On average, Thai Airways flights from the United Kingdom to Ko Samui take 19 hours 42 minutes. Flights to Ko Samui from other popular cities in the United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the best time to book a flight to Ko Samui with Thai Airways?

The best time to book a flight to Ko Samui with Thai Airways is 57 days before departure. On average, fares are higher if you book 48 days before departure.

FAQs about flights to Ko Samui with Thai Airways

  • Which airport do Thai Airways flights arrive at when travelling to Ko Samui?

    Thai Airways flights on this route tend to land at Ko Samui Airport.

  • Is Thai Airways the cheapest airline for a flight to Ko Samui?

    Flight prices will depend on factors like date, time, and cabin class, so it is worth comparing flights before booking. Based on Cheapflights data, the cheapest average return price for flights to Ko Samui tends to be with Bangkok Airways.

  • Are there alternative airlines other than Thai Airways that fly to Ko Samui?

    EVA Air, Qatar Airways and Singapore Airlines all fly to Ko Samui and offer an alternative to Thai Airways.

  • How much is a Thai Airways flight to Ko Samui?

    The average price for a return flight with Thai Airways is £1,029, while a one-way flight costs around £634.

See more FAQs

Reviews of Thai Airways

See what Cheapflights users have to say about their Thai Airways experience.
Thai Airways
7.9
Good
412 reviews
Check prices
Overview

Crew

8.4

Entertainment

6.9

Boarding

8.0

Comfort

7.7

Food

7.5

Popular Thai Airways flights

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Fly your favourite airline to Ko Samui

Fly your favorite airline to Ko Samui. Flight routes are based on user searches made on Cheapflights and were last updated on 27 July 2026.
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