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 popular places can I visit in Ko Samui?

Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Hin Ta and Hin Yai Rocks. 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, return flight prices on this route showed a wide range, from about ฿41,480 to ฿288,780. That means the highest observed fare was about 7x 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.

Which car hire options are available at Ko Samui Airport (USM)?

Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around ฿447 for economy cars. Top options include: • Drive Car Rental • Alamo • Sixt • Enterprise Rent-A-Car • Hertz

฿41,480 CHEAP FLIGHTS from San Diego to Ko Samui (SAN - USM)

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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.

Return

One-way

Recent return flight deals from San Diego to Ko Samui

Mon 5 Oct - Fri 9 Oct

07:50 - 07:10SAN San Diego-USM Ko Samui

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

21:00 - 12:23USM Ko Samui-SAN San Diego

29h 23m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl San Francisco

฿41,480Multiple Airlines

Mon 5 Oct - Fri 9 Oct

16:26 - 19:40SAN San Diego-USM Ko Samui

37h 14m2 stops Dallas/Fort Worth Hong Kong Intl

11:55 - 10:06USM Ko Samui-SAN San Diego

36h 11m2 stops Hong Kong Intl San Francisco

฿56,537Cathay Pacific

Sun 4 Oct - Fri 9 Oct

07:32 - 19:40SAN San Diego-USM Ko Samui

46h 08m2 stops Chicago O'Hare Intl Hong Kong Intl

11:55 - 12:23USM Ko Samui-SAN San Diego

38h 28m2 stops Hong Kong Intl San Francisco

฿57,822Multiple Airlines

Mon 5 Oct - Fri 9 Oct

07:50 - 08:35SAN San Diego-USM Ko Samui

34h 45m3 stops San Francisco Hong Kong Intl Bangkok Suvarnabhumi

11:55 - 08:45USM Ko Samui-SAN San Diego

34h 50m2 stops Hong Kong Intl San Francisco

฿62,566Cathay Pacific

Thu 29 Oct - Mon 2 Nov

12:45 - 09:05SAN San Diego-USM Ko Samui

30h 20m2 stops Tokyo Narita Bangkok Suvarnabhumi

19:00 - 09:50USM Ko Samui-SAN San Diego

29h 50m2 stops Bangkok Suvarnabhumi Tokyo Narita

฿65,828Japan Airlines

Thu 29 Oct - Mon 2 Nov

12:45 - 08:10SAN San Diego-USM Ko Samui

29h 25m2 stops Tokyo Narita Bangkok Suvarnabhumi

19:00 - 09:50USM Ko Samui-SAN San Diego

29h 50m2 stops Bangkok Suvarnabhumi Tokyo Narita

฿72,450Japan Airlines

Thu 29 Oct - Mon 2 Nov

12:45 - 09:05SAN San Diego-USM Ko Samui

30h 20m2 stops Tokyo Narita Bangkok Suvarnabhumi

19:00 - 09:50USM Ko Samui-SAN San Diego

29h 50m2 stops Bangkok Suvarnabhumi Tokyo Narita

฿72,483Japan Airlines

Thu 29 Oct - Mon 2 Nov

19:00 - 18:15SAN San Diego-USM Ko Samui

33h 15m2 stops London Heathrow Singapore Changi

16:25 - 16:10USM Ko Samui-SAN San Diego

38h 45m2 stops Singapore Changi London Heathrow

฿73,274บริติชแอร์เวย์

Tue 6 Oct - Fri 9 Oct

06:15 - 21:10SAN San Diego-USM Ko Samui

24h 55m2 stops San Francisco Singapore Changi

13:30 - 00:31USM Ko Samui-SAN San Diego

25h 01m2 stops Singapore Changi San Francisco

฿83,059Multiple Airlines

Sat 3 Oct - Fri 9 Oct

19:40 - 21:10SAN San Diego-USM Ko Samui

35h 30m2 stops London Heathrow Singapore Changi

13:30 - 17:50USM Ko Samui-SAN San Diego

42h 20m2 stops Singapore Changi London Heathrow

฿285,156บริติชแอร์เวย์

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?

Cathay Pacific (฿56,537) and Japan Airlines (฿65,828) are the cheapest airlines to fly return from San Diego to Ko Samui according to KAYAK data over the last 5 days.

Find deals

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 return price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns 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.

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 popular places can I visit in Ko Samui?
Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Hin Ta and Hin Yai Rocks. 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, return flight prices on this route showed a wide range, from about ฿41,480 to ฿288,780. That means the highest observed fare was about 7x 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.
Which car hire options are available at Ko Samui Airport (USM)?
Ko Samui Airport (USM) hosts 5 major car hire companies, with daily rates starting from around ฿447 for economy cars. Top options include:
• Drive Car Rental
• Alamo
• Sixt
• Enterprise Rent-A-Car
• Hertz

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
- Cosi Samui Chaweng Beach
- Melia Koh Samui

More options for your flight from San Diego to Ko Samui

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Hotels in Ko Samui

SAN - USM

฿41,480 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 return 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?

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 hire

Information on your arrival and departure airports

Cabin class types available on flights from San Diego to Ko Samui

Flights from domestic origins to Ko Samui

Flights to other popular destinations