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$632 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 10/31. 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 7/11
Thu 7/18

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In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

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Good to know

Low season

December

High season

January

Cheapest flight

$632
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, +26 more

Air Astana, Air France, +27 more

Tuesday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Wednesday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Thursday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Friday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Saturday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Sunday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

See more direct flights

Nonstop returns

Ko Samui to California

Monday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Tuesday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Wednesday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Thursday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Friday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Saturday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 more

Sunday

Air Astana, Air France, Austrian Airlines, +26 more

Air Astana, Air France, +27 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
21h 35mLAX-USM
10/8Tue
1 stopSingapore Airlines
26h 40mUSM-LAX
$922
11/5Tue
1 stopSingapore Airlines
31h 25mSFO-USM
11/10Sun
1 stopSingapore Airlines
37h 50mUSM-SFO
$961
11/5Tue
1 stopSingapore Airlines
31h 25mSFO-USM
11/10Sun
1 stopSingapore Airlines
37h 50mUSM-SFO
$992
11/5Tue
2 stopsEVA Air
25h 05mSFO-USM
11/10Sun
2 stopsEVA Air
24h 15mUSM-SFO
$1,041
11/5Tue
2 stopsEVA Air
25h 05mSFO-USM
11/10Sun
2 stopsEVA Air
24h 15mUSM-SFO
$1,042
9/24Tue
2 stopsJapan Airlines
42h 05mLAX-USM
10/8Tue
2 stopsJapan Airlines
21h 00mUSM-LAX
$1,065
8/22Thu
2 stops
31h 30mLAX-USM
8/30Fri
2 stops
27h 10mUSM-LAX
$1,127
11/4Mon
2 stops
24h 35mSFO-USM
11/10Sun
2 stops
19h 45mUSM-SFO
$1,149
7/2Tue
2 stopsQatar Airways
29h 35mLAX-USM
7/15Mon
2 stopsQatar Airways
30h 55mUSM-LAX
$1,618
7/10Wed
2 stopsQatar Airways
28h 10mLAX-USM
7/17Wed
2 stopsQatar Airways
27h 30mUSM-LAX
$1,630

Search by stops

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Search by price

Recent one-way flight deals

10/31Thu
2 stopsEVA Air
24h 45mSFO-USM
$632
8/4Sun
2 stops
23h 55mSFO-USM
$640
8/5Mon
2 stopsEVA Air
29h 35mSFO-USM
$651
11/1Fri
1 stopSingapore Airlines
31h 25mSFO-USM
$687
7/8Mon
2 stops
53h 20mSJC-USM
$719
7/8Mon
3 stops
47h 35mSJC-USM
$723
11/2Sat
1 stopSingapore Airlines
31h 25mSFO-USM
$747
8/4Sun
1 stopCathay Pacific
27h 40mSFO-USM
$1,156
6/30Sun
1 stopCathay Pacific
39h 20mLAX-USM
$1,499
7/8Mon
2 stopsEmirates
33h 50mSFO-USM
$4,149

Search by stops

Search by airline

Search by price

Last minute flights from California to Koh Samui

Last minute flight, train and bus deals

6/12Wed
multi-stopQatar Airways
36h 15mLAX-USM
7/10Wed
multi-stopQatar Airways
36h 40mUSM-LAX
$2,044
6/12Wed
multi-stop
34h 35mLAX-USM
7/10Wed
multi-stop
34h 10mUSM-LAX
$2,154
6/12Wed
multi-stop
30h 50mLAX-USM
6/22Sat
multi-stop
26h 50mUSM-LAX
$2,171
6/16Sun
multi-stop
34h 45mLAS-USM
6/21Fri
multi-stop
29h 53mUSM-LAS
$2,233
6/16Sun
multi-stop
32h 50mLAS-USM
6/21Fri
multi-stop
29h 53mUSM-LAS
$2,308
6/12Wed
multi-stop
34h 05mLAX-USM
7/10Wed
multi-stop
25h 50mUSM-LAX
$2,497
6/12Wed
multi-stop
32h 15mLAX-USM
6/22Sat
multi-stop
25h 40mUSM-LAX
$2,556
6/16Sun
multi-stopSingapore Airlines
53h 55mLAS-USM
6/21Fri
multi-stopSingapore Airlines
34h 08mUSM-LAS
$3,141
6/12Wed
multi-stopSingapore Airlines
38h 00mLAX-USM
7/10Wed
multi-stopSingapore Airlines
26h 40mUSM-LAX
$3,163
6/12Wed
multi-stopSingapore Airlines
38h 00mLAX-USM
6/22Sat
multi-stopSingapore Airlines
22h 10mUSM-LAX
$4,050

Search by stops

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Flights to Koh Samui

Destination:

Koh Samui (USM)Thailand

Return flight deals:

Koh Samui - California

Cabin classes:

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