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Cheap flights from San Diego to Ko Samui from $1,012

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Ko Samui departing on 9/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from San Diego to Ko Samui

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
9:05 am - 7:40 pmSAN  San Diego-USM Ko Samui
44h 35m2 stops San Francisco Hong Kong Intl
Multiple Airlines Logo
11:55 am - 10:08 amUSM  Ko Samui-SAN San Diego
36h 13m2 stops Hong Kong Intl San Francisco
$1,012Multiple Airlines
Sun, Sep 6 - Wed, Sep 16
Multiple Airlines Logo
9:30 pm - 7:40 pmSAN  San Diego-USM Ko Samui
32h 10m2 stops San Francisco Hong Kong Intl
Multiple Airlines Logo
11:55 am - 10:08 amUSM  Ko Samui-SAN San Diego
36h 13m2 stops Hong Kong Intl San Francisco
$1,059Multiple Airlines
Fri, Sep 11 - Mon, Sep 21
Multiple Airlines Logo
5:22 pm - 2:45 pmSAN  San Diego-USM Ko Samui
31h 23m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
9:00 pm - 11:16 amUSM  Ko Samui-SAN San Diego
28h 16m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl San Francisco
$1,204Multiple Airlines
Sun, Sep 6 - Wed, Sep 16
Multiple Airlines Logo
7:05 am - 11:40 amSAN  San Diego-USM Ko Samui
37h 35m2 stops Vancouver Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
6:30 pm - 1:04 pmUSM  Ko Samui-SAN San Diego
33h 34m2 stops Bangkok Suvarnabhumi Vancouver Intl
$1,302Multiple Airlines
Tue, Dec 1 - Wed, Dec 9
Multiple Airlines Logo
9:30 pm - 7:40 pmSAN  San Diego-USM Ko Samui
32h 10m2 stops San Francisco Hong Kong Intl
Multiple Airlines Logo
7:10 pm - 3:54 pmUSM  Ko Samui-SAN San Diego
58h 44m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco
$1,303Multiple Airlines
Fri, Sep 11 - Mon, Sep 21
Multiple Airlines Logo
4:50 pm - 2:45 pmSAN  San Diego-USM Ko Samui
31h 55m3 stops Seattle/Tacoma Intl Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
7:45 pm - 11:16 amUSM  Ko Samui-SAN San Diego
29h 31m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl San Francisco
$1,322Multiple Airlines
Fri, Sep 11 - Mon, Sep 21
Multiple Airlines Logo
4:49 pm - 3:40 pmSAN  San Diego-USM Ko Samui
31h 51m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
8:30 pm - 11:34 amUSM  Ko Samui-SAN San Diego
54h 04m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Los Angeles
$1,438Multiple Airlines
Tue, Dec 1 - Wed, Dec 9
Multiple Airlines Logo
9:05 am - 7:10 amSAN  San Diego-USM Ko Samui
32h 05m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
9:00 pm - 11:35 amUSM  Ko Samui-SAN San Diego
76h 35m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Los Angeles
$1,453Multiple Airlines
Wed, Sep 30 - Wed, Oct 7
Multiple Airlines Logo
9:30 pm - 7:40 pmSAN  San Diego-USM Ko Samui
32h 10m2 stops San Francisco Hong Kong Intl
Multiple Airlines Logo
3:25 pm - 5:10 pmUSM  Ko Samui-SAN San Diego
39h 45m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco
$1,502Multiple Airlines
Sun, Sep 6 - Wed, Sep 16
Multiple Airlines Logo
9:05 am - 7:10 amSAN  San Diego-USM Ko Samui
32h 05m3 stops San Francisco Hong Kong Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
1:30 pm - 4:12 pmUSM  Ko Samui-SAN San Diego
40h 42m2 stops Singapore Changi Vancouver Intl
$1,879Multiple Airlines
Wed, Sep 30 - Wed, Oct 7

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Singapore Airlines flights from San Diego to Ko Samui

Our best Singapore Airlines deals on San Diego to Ko Samui flight tickets
Singapore Airlines
Dec 1
SAN6:30 amSan Diego
47h 35m
3 stops
USM9:05 pmKo Samui
Dec 9
USM1:25 pmKo Samui
37h 09m
2 stops
SAN11:34 amSan Diego
$2,049
Singapore Airlines
Oct 29
SAN10:47 amSan Diego
44h 18m
3 stops
USM9:05 pmKo Samui
Nov 2
USM1:25 pmKo Samui
45h 55m
3 stops
SAN8:20 pmSan Diego
$2,456
Singapore Airlines
Oct 29
SAN10:47 amSan Diego
44h 18m
3 stops
USM9:05 pmKo Samui
Nov 2
USM1:25 pmKo Samui
69h 55m
2 stops
SAN8:20 pmSan Diego
$2,622

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Ko Samui that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 16, 2026.
Use the filters below to find and compare flights from San Diego to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Sun 9/6

9:05 am-7:40 pm

2 stops44h 35m

Ko Samui

Wed 9/16

11:55 am-10:08 am

2 stops36h 13m

$1,012

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Fri 9/11

9:30 pm-7:40 pm

2 stops32h 10m

Ko Samui

Mon 9/21

11:55 am-10:08 am

2 stops36h 13m

$1,059
Quickest round-trip

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Sun 9/6

5:22 pm-2:45 pm

3 stops31h 23m

Ko Samui

Wed 9/16

9:00 pm-11:16 am

3 stops28h 16m

$1,204

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Tue 12/1

7:05 am-11:40 am

2 stops37h 35m

Ko Samui

Wed 12/9

6:30 pm-1:04 pm

2 stops33h 34m

$1,302

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Fri 9/11

9:30 pm-7:40 pm

2 stops32h 10m

Ko Samui

Mon 9/21

7:10 pm-3:54 pm

3 stops58h 44m

$1,303

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Fri 9/11

4:50 pm-2:45 pm

3 stops31h 55m

Ko Samui

Mon 9/21

7:45 pm-11:16 am

3 stops29h 31m

$1,322

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Tue 12/1

4:49 pm-3:40 pm

3 stops31h 51m

Ko Samui

Wed 12/9

8:30 pm-11:34 am

3 stops54h 04m

$1,438

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Wed 9/30

9:05 am-7:10 am

3 stops32h 05m

Ko Samui

Wed 10/7

9:00 pm-11:35 am

3 stops76h 35m

$1,453

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Sun 9/6

9:30 pm-7:40 pm

2 stops32h 10m

Ko Samui

Wed 9/16

3:25 pm-5:10 pm

3 stops39h 45m

$1,502

San DiegoKo Samui

SAN San Diego - USM Ko Samui

SANUSM

San Diego

Wed 9/30

9:05 am-7:10 am

3 stops32h 05m

Ko Samui

Wed 10/7

1:30 pm-4:12 pm

2 stops40h 42m

$1,879

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Ko Samui from

How to get the cheapest flight ticket from San Diego to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How often are flights from San Diego to Ko Samui delayed?

Historically, on average around 17% of flights between San Diego and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 171 minutes.

What is the most punctual flight time for San Diego to Ko Samui flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Saturday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on San Diego to Ko Samui flights?

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

When to book flights from San Diego to Ko Samui

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Ko Samui according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to Ko Samui (SAN to USM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Ko Samui

Fastest flight time

33h 15m

Direct flights

None
The fastest flight from San Diego to Ko Samui takes 33h 15m
There are no direct flights from San Diego to Ko Samui. There are no popular flight routes from San Diego to Ko Samui.
Search flight deals

Frequently asked questions about flying from San Diego to Ko Samui

  • How far is San Diego to Ko Samui by plane?

    A flight from San Diego to Ko Samui will travel around 8620.4 mi. A reasonable flight in good conditions will take 33h 15m.

  • When did momondo last update prices for flights from San Diego Airport to Ko Samui Airport?

    Prices for flights from San Diego Airport to Ko Samui Airport are refreshed on a daily basis.

  • How old do you have to be to fly from San Diego Airport to Ko Samui Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to Ko Samui Airport.

  • What documentation or ID do you need to fly to Ko Samui Airport?

    The required travel and health documents for your Ko Samui Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ko Samui Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Pha Ngan
Ko Tao
Khanom

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Ko Samui?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to Ko Samui. momondo saves you time and could save you money on your trip.

Can I find flights from San Diego to Ko Samui with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ko Samui from San Diego which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Diego to Ko Samui?

Once all potential San Diego to Ko Samui flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Diego to Ko Samui right now. Can momondo alert me if prices change?

Price alerts on flights to Ko Samui from San Diego are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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