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$620 Find cheap flights from California to Koh Samui

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Koh Samui departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Thu 6/27
Thu 7/4

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In the last 7 days travelers have searched 42,816,550 times on KAYAK, and here is why:

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Good to know

Low season

December

High season

January

Cheapest flight

$620
Best time to beat the crowds but there is an average 59% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from San Francisco to Koh Samui

FAQs for booking flights from California to Koh Samui

  • How does KAYAK find such low prices on flights from California to Koh Samui?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Koh Samui.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Koh Samui?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Koh Samui from California is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from California to Koh Samui?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Koh Samui with an airline and back to California with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Koh Samui?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Koh Samui from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Prefer to fly non-stop from California to Koh Samui?

Find which airlines fly direct from California to Ko Samui, which days they fly and book direct flights.

Nonstop departures

California to Ko Samui

Monday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Tuesday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Wednesday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Thursday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Friday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Saturday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Sunday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

See more direct flights

Nonstop returns

Ko Samui to California

Monday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Tuesday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Wednesday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Thursday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Friday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Saturday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

Sunday

Air Astana, Air France, Austrian Airlines, +24 more

Air Astana, Air France, +25 more

See more direct flights
See more direct flights

Book cheap flights from California to Koh Samui

Recent round-trip flight deals

9/24Tue
1 stopSingapore Airlines
42h 25mLAX-USM
10/8Tue
1 stopSingapore Airlines
26h 40mUSM-LAX
$960
9/24Tue
1 stopSingapore Airlines
42h 25mLAX-USM
10/8Tue
2 stopsSingapore Airlines
41h 50mUSM-LAX
$971
9/23Mon
2 stopsJapan Airlines
30h 00mLAX-USM
10/8Tue
2 stopsJapan Airlines
43h 05mUSM-LAX
$996
8/22Thu
2 stops
30h 40mLAX-USM
8/30Fri
2 stops
27h 05mUSM-LAX
$1,114
8/21Wed
2 stopsEVA Air
23h 20mLAX-USM
8/30Fri
2 stopsEVA Air
24h 30mUSM-LAX
$1,185
11/22Fri
2 stopsEVA Air
29h 30mLAX-USM
11/30Sat
2 stopsEVA Air
25h 35mUSM-LAX
$1,205
8/21Wed
2 stops
23h 30mLAX-USM
8/30Fri
1 stop
25h 40mUSM-LAX
$1,536
8/21Wed
1 stopCathay Pacific
27h 20mLAX-USM
8/30Fri
1 stopCathay Pacific
25h 40mUSM-LAX
$1,583
9/23Mon
1 stopCathay Pacific
28h 05mLAX-USM
10/8Tue
1 stopCathay Pacific
25h 20mUSM-LAX
$1,811
8/26Mon
2 stopsJapan Airlines
27h 40mLAX-USM
9/3Tue
2 stopsJapan Airlines
24h 55mUSM-LAX
$4,846

Search by stops

Search by airline

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Recent one-way flight deals

8/4Sun
2 stops
25h 30mSFO-USM
$620
8/5Mon
2 stopsEVA Air
29h 35mSFO-USM
$651
8/1Thu
1 stopSingapore Airlines
30h 35mSFO-USM
$774
7/31Wed
2 stops
26h 55mSFO-USM
$820
8/1Thu
2 stops
35h 30mSFO-USM
$950
7/31Wed
2 stopsEVA Air
24h 20mSFO-USM
$961
8/5Mon
1 stopSingapore Airlines
30h 35mSFO-USM
$1,054
8/4Sun
1 stopCathay Pacific
27h 40mSFO-USM
$1,207
8/5Mon
3 stopsSingapore Airlines
63h 05mSFO-USM
$1,441
8/1Thu
3 stopsSingapore Airlines
57h 21mSFO-USM
$1,491

Search by stops

Search by airline

Search by price

Last minute flights from California to Koh Samui

Last minute flight, train and bus deals

5/29Wed
multi-stopQatar Airways
28h 20mSFO-USM
7/15Mon
multi-stopQatar Airways
37h 20mUSM-SFO
$1,912
6/2Sun
multi-stopEVA Air
24h 55mSFO-USM
7/11Thu
multi-stopEVA Air
26h 25mUSM-SFO
$2,003
5/29Wed
multi-stop
30h 35mSFO-USM
7/15Mon
multi-stop
26h 15mUSM-SFO
$2,113
5/29Wed
multi-stopSingapore Airlines
30h 35mSFO-USM
7/15Mon
multi-stopSingapore Airlines
25h 15mUSM-SFO
$2,233
5/29Wed
multi-stop
30h 25mSJC-USM
7/15Mon
multi-stop
33h 49mUSM-SJC
$2,389
5/29Wed
multi-stop
30h 35mSJC-USM
7/15Mon
multi-stop
33h 49mUSM-SJC
$2,456
6/2Sun
multi-stop
24h 05mSFO-USM
7/11Thu
multi-stop
27h 35mUSM-SFO
$2,708
6/2Sun
multi-stopCathay Pacific
26h 50mSFO-USM
7/11Thu
multi-stopCathay Pacific
25h 50mUSM-SFO
$2,900
5/29Wed
multi-stopSingapore Airlines
46h 20mSFO-USM
7/15Mon
multi-stopSingapore Airlines
31h 56mUSM-SFO
$4,226
5/29Wed
multi-stopSingapore Airlines
46h 20mSFO-USM
7/15Mon
multi-stopSingapore Airlines
40h 23mUSM-SFO
$4,238

Search by stops

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Search by price

Flights to Koh Samui

Destination:

Koh Samui (USM)Thailand

Return flight deals:

Koh Samui - California

Cabin classes:

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