Which airports can I use when flying from San Diego to Ko Samui?

Flights from San Diego to Ko Samui usually depart from San Diego (SAN) and arrive at Ko Samui (USM).

What cabin classes can I book on flights from San Diego to Ko Samui?

Only Economy Class is available on flights from San Diego to Ko Samui.

What popular places can I visit in Ko Samui?

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

Do I need a passport to fly from San Diego 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 San Diego to Ko Samui changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,038 to $2,223. That means the highest observed fare was about 2x higher than the lowest one.

What is the time difference between San Diego and Ko Samui?

Ko Samui is 14 hours ahead of San Diego (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ko Samui Airport (USM)?

Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include: • Drive Car Rental • Alamo • Sixt • Enterprise Rent-A-Car • Hertz

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Flight Deals

Cheap Flights from San Diego to Ko Samui (SAN-USM)

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

Round-trip

One-way

Recent round-trip flight deals from San Diego to Ko Samui

Mon, Nov 2 - Mon, Nov 9

7:10 am - 7:45 amSAN San Diego-USM Ko Samui

33h 35m3 stops San Francisco Hong Kong Intl Bangkok Suvarnabhumi

6:40 pm - 2:47 pmUSM Ko Samui-SAN San Diego

35h 07m3 stops Bangkok Suvarnabhumi Hong Kong Intl Seattle/Tacoma Intl

$1,038Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

7:10 am - 7:45 amSAN San Diego-USM Ko Samui

33h 35m3 stops San Francisco Hong Kong Intl Bangkok Suvarnabhumi

9:10 pm - 4:25 pmUSM Ko Samui-SAN San Diego

34h 15m2 stops Bangkok Suvarnabhumi Vancouver Intl

$1,076Multiple Airlines

Mon, Nov 2 - Mon, Nov 9

7:10 am - 7:35 pmSAN San Diego-USM Ko Samui

45h 25m2 stops San Francisco Hong Kong Intl

8:20 pm - 4:25 pmUSM Ko Samui-SAN San Diego

35h 05m2 stops Bangkok Suvarnabhumi Vancouver Intl

$1,118Multiple Airlines

Sat, Oct 31 - Sat, Nov 7

1:10 pm - 7:35 pmSAN San Diego-USM Ko Samui

40h 25m2 stops San Francisco Hong Kong Intl

9:10 pm - 1:36 pmUSM Ko Samui-SAN San Diego

31h 26m3 stops Bangkok Suvarnabhumi Hong Kong Intl San Francisco

$1,169Multiple Airlines

Sat, Oct 31 - Sat, Nov 7

2:33 pm - 7:35 pmSAN San Diego-USM Ko Samui

39h 02m2 stops San Francisco Hong Kong Intl

9:30 pm - 3:55 pmUSM Ko Samui-SAN San Diego

33h 25m2 stops Bangkok Suvarnabhumi Vancouver Intl

$1,207Multiple Airlines

Sat, Oct 31 - Sat, Nov 7

7:50 am - 7:10 amSAN San Diego-USM Ko Samui

33h 20m3 stops San Francisco Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi

8:30 pm - 11:43 amUSM Ko Samui-SAN San Diego

30h 13m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl San Francisco

$1,295Multiple Airlines

Thu, Oct 29 - Mon, Nov 2

12:45 pm - 8:10 amSAN San Diego-USM Ko Samui

29h 25m2 stops Tokyo Narita Bangkok Suvarnabhumi

7:00 pm - 9:50 amUSM Ko Samui-SAN San Diego

29h 50m2 stops Bangkok Suvarnabhumi Tokyo Narita

$1,997Japan Airlines

Thu, Oct 29 - Mon, Nov 2

12:45 pm - 8:10 amSAN San Diego-USM Ko Samui

29h 25m2 stops Tokyo Narita Bangkok Suvarnabhumi

7:00 pm - 9:50 amUSM Ko Samui-SAN San Diego

29h 50m2 stops Bangkok Suvarnabhumi Tokyo Narita

$2,197Japan Airlines

Thu, Oct 29 - Mon, Nov 2

7:00 pm - 6:15 pmSAN San Diego-USM Ko Samui

33h 15m2 stops London Heathrow Singapore Changi

4:25 pm - 4:10 pmUSM Ko Samui-SAN San Diego

38h 45m2 stops Singapore Changi London Heathrow

$2,223British Airways

Booking Insights

Price, demand and travel trends for San Diego to Ko Samui flights

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

What is the cheapest airline to fly from San Diego to Ko Samui?

Japan Airlines ($1,997) and British Airways ($2,223) are the cheapest airlines to fly round-trip from San Diego to Ko Samui according to KAYAK data over the last 5 days.

Find deals

Cheapest flight	$1,038

Flight from San Diego to Ko Samui

When to book flights from San Diego to Ko Samui

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

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from San Diego to Ko Samui?
Only Economy Class is available on flights from San Diego to Ko Samui.
Do I need a passport to fly from San Diego 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 San Diego to Ko Samui changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,038 to $2,223. That means the highest observed fare was about 2x higher than the lowest one.
What car rental options are available at Ko Samui Airport (USM)?
Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include:
• Drive Car Rental
• Alamo
• Sixt
• Enterprise Rent-A-Car
• Hertz
Which airports can I use when flying from San Diego to Ko Samui?
Flights from San Diego to Ko Samui usually depart from San Diego (SAN) and arrive at Ko Samui (USM).
What is the time difference between San Diego and Ko Samui?
Ko Samui is 14 hours ahead of San Diego (Indochina Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ko Samui?
Some of the most popular sights in Ko Samui are Lamai Beach, Chaweng Beach and Fishermans Village. These are among the most viewed places in Ko Samui on KAYAK.

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
- Melia Koh Samui
- Cosi Samui Chaweng Beach

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SAN - USM

$1,038 Find Cheap Flights from San Diego to Ko Samui - Compare and Save

Everything you should know

Cheap Flights from San Diego to Ko Samui (SAN-USM)

Recent round-trip flight deals from San Diego to Ko Samui

Recent one-way flight deals from San Diego to Ko Samui

Price, demand and travel trends for San Diego to Ko Samui flights

What is the cheapest airline to fly from San Diego to Ko Samui?

Key details for San Diego to Ko Samui flights

Cheapest flight

When to book flights from San Diego to Ko Samui

Your San Diego to Ko Samui flight questions, answered

Your guide to booking San Diego to Ko Samui flights

More options for your flight from San Diego to Ko Samui

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

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