How long is the flight from Southampton to Ko Samui?

There are many flights that can get you from Southampton to Ko Samui in 23h 55m. Fly via KLM or Qatar Airways to get the fastest option. The distance between Southampton and Ko Samui is about 6191 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Ko Samui ranges from 58.0 - 490.0 inches per month. November is typically the wettest month, when rainfall can reach 490.0 mm. February is typically the driest time to visit Ko Samui when rainfall is around 58.0 mm.

If weather is an important factor for your trip to Ko Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).

What is the cheapest time of day to fly from SOU to USM?

When flying from Southampton to Ko Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Southampton to Ko Samui that include hotel bookings?

Yes. In addition to deals on Southampton to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Southampton to Ko Samui?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Ko Samui.

Can I find deals for business class flights from Southampton to Ko Samui?

Yes. Cheapflights offers flight deals from Southampton to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£812+ Cheap Flights from Southampton to Ko Samui

Cheap flight deals from Southampton to Ko Samui

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Southampton to Ko Samui
Explore the most affordable flight options available from Southampton to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.

Thu 19/1117:10 -

3 stops32h 00m

Thu 26/1108:55 -

3 stops36h 15m

Deal found 5/10£911

Thu 19/1108:40 -

2 stops23h 55m

Thu 26/1107:55 -

2 stops31h 15m

Deal found 5/10£1,208

Sat 19/1209:20 -

3 stops27h 15m

Fri 15/120:30 -

3 stops54h 00m

Deal found 9/10£2,708

Sat 26/1209:20 -

3 stops39h 50m

Sat 9/119:40 -

3 stops30h 50m

Deal found 6/10£5,037

Find flight deals from Southampton to Ko Samui

Round-trip from	£911
One-way from	£812
Popular in	December
Cheapest in	November
Average price	£898

19/11-26/11
6 total stops
68h 15m total
Southampton to Ko Samui

Search Deals

Qatar Airways
2/11-31/12
3 total stops
25h 55m total
Southampton to Ko Samui

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£80 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£35 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

SouthamptonKo Samui

SOU Southampton Eastleigh - USM Ko Samui

SOUUSM

Southampton Eastleigh

Mon 2/11

09:20-18:15

3 stops25h 55m

Ko Samui

Wed 31/12

00:00-18:00

Nonstop0h 00m

£812

SouthamptonKo Samui

SOU Southampton Eastleigh - USM Ko Samui

SOUUSM

Southampton Eastleigh

Thu 19/11

17:10-08:10

3 stops32h 00m

Ko Samui

Thu 26/11

08:55-14:10

3 stops36h 15m

£911

SouthamptonKo Samui

SOU Southampton Eastleigh - USM Ko Samui

SOUUSM

Southampton Eastleigh

Fri 26/3

09:20-17:30

3 stops25h 10m

Ko Samui

Fri 9/4

15:25-09:45

3 stops24h 20m

£1,698

SouthamptonKo Samui

SOU Southampton Eastleigh - USM Ko Samui

SOUUSM

Southampton Eastleigh

Sat 19/12

09:20-19:35

3 stops27h 15m

Ko Samui

Fri 15/1

20:30-19:30

3 stops54h 00m

£2,708

SouthamptonKo Samui

SOU Southampton Eastleigh - USM Ko Samui

SOUUSM

Southampton Eastleigh

Thu 7/1

09:20-15:35

3 stops23h 15m

Ko Samui

Tue 19/1

21:30-19:30

3 stops53h 00m

£3,649

SouthamptonKo Samui

SOU Southampton Eastleigh - USM Ko Samui

SOUUSM

Southampton Eastleigh

Sat 26/12

09:20-08:10

3 stops39h 50m

Ko Samui

Sat 9/1

19:40-19:30

3 stops30h 50m

£5,037

Flights are sorted by cheapest return flights first.

Deals found on 7/10

Sorted by cheapest first

Best time to book a flight from Southampton to Ko Samui

Have a flexible travel schedule? Discover the best time to fly to Ko Samui from Southampton with our price prediction graph.

SOU-USM

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Southampton to Ko Samui?
There are many flights that can get you from Southampton to Ko Samui in 23h 55m. Fly via KLM or Qatar Airways to get the fastest option. The distance between Southampton and Ko Samui is about 6191 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Southampton to Ko Samui that include hotel bookings?
Yes. In addition to deals on Southampton to Ko Samui flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Southampton to Ko Samui?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Ko Samui.
Can I find deals for business class flights from Southampton to Ko Samui?
Yes. Cheapflights offers flight deals from Southampton to Ko Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Can Cheapflights find flights from Southampton to Ko Samui with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Southampton to Ko Samui flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Southampton to Ko Samui become cheaper?

Yes, Cheapflights offers price alerts on Southampton to Ko Samui flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Southampton to Ko Samui from £812

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Southampton to Ko Samui

Cheapest flights from Southampton to Ko SamuiExplore the most affordable flight options available from Southampton to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.

Explore the most affordable flight options available from Southampton to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.

Best flights from Southampton to Ko SamuiDiscover carefully curated flight deals from Southampton to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.

Discover carefully curated flight deals from Southampton to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.

Last-minute flights from Southampton to Ko SamuiDiscover last-minute flight deals from Southampton to Ko Samui. Data last updated 10 October 2026 and is based on user searches.

Discover last-minute flight deals from Southampton to Ko Samui. Data last updated 10 October 2026 and is based on user searches.

One-way flights from Southampton to Ko SamuiSearch for one-way flight options from Southampton to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.

Search for one-way flight options from Southampton to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.

Find flight deals from Southampton to Ko Samui

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Cheapflights Fare Finder

Use the filters below to find and compare flights from Southampton to Ko Samui that are best for you.

Best time to book a flight from Southampton to Ko Samui

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Related info for your journey

How long is the flight from Southampton to Ko Samui?

Can I find deals for flights from Southampton to Ko Samui that include hotel bookings?

How can I find direct flights from Southampton to Ko Samui?

Can I find deals for business class flights from Southampton to Ko Samui?

Travelling to a place near Ko Samui?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Southampton to Ko Samui

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Ko Samui by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Thailand

Book a non-stop flight to one of these other cities located in Thailand.

Search flights from Southampton to Ko Samui by cabin class

Find flights from Southampton to Ko Samui, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Ko Samui

Explore flights to Ko Samui departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 10 October 2026.

Southampton and Ko Samui flights

Browse other Southampton and Ko Samui flight options. Last updated on 10 October 2026.

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How does Cheapflights help users find flights from Southampton to Ko Samui?

Why should you use Cheapflights to find cheap flight tickets from Southampton to Ko Samui?

Can Cheapflights find flights from Southampton to Ko Samui with no change fees?

Can Cheapflights notify me if prices for flights from Southampton to Ko Samui become cheaper?

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Cheapest flights from Southampton to Ko Samui
Explore the most affordable flight options available from Southampton to Ko Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 October 2026.

Best flights from Southampton to Ko Samui
Discover carefully curated flight deals from Southampton to Ko Samui that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 October 2026.

Last-minute flights from Southampton to Ko Samui
Discover last-minute flight deals from Southampton to Ko Samui. Data last updated 10 October 2026 and is based on user searches.

One-way flights from Southampton to Ko Samui
Search for one-way flight options from Southampton to Ko Samui. Find affordable one-way fares based on user searches. Data last updated 10 October 2026.