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Koh Samui

$551+ Cheap flights from Riverside, CA to Koh Samui (USM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — USM
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Riverside to Koh Samui

Keep the following information in mind while searching for Riverside to Koh Samui flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$935
(FlightHub)

One-way from

$551
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$1,400
Provider with most accurate pricing for Los Angeles-Ko Samui flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Ko Samui flights.
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From Riverside to Ko Samui
Search Deals
One-way flight from Riverside to Ko Samui
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Highest demand for flights based on searches. 5% potential increase in price ($81 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Riverside to Koh Samui

Cheapest flights from Riverside to Koh Samui
Explore the most affordable flight options available from Riverside to Koh Samui. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This FlightHub deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/128:50 pmLAX - USM
1 stop21h 10mSingapore Airlines
Wed 3/268:55 amUSM - LAX
1 stop24h 05mSingapore Airlines
Deal found 2/20$983
This oojo deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1211:40 amLAX - USM
2 stops30h 05mEVA Air
Wed 3/267:00 pmUSM - LAX
2 stops26h 00mEVA Air
Deal found 2/20$1,062
This FlightHub deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:35 pmLAX - USM
2 stops28h 40mJapan Airlines
Tue 9/167:30 pmUSM - LAX
2 stops31h 05mJapan Airlines
Deal found 2/20$1,114
This StudentUniverse deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure StudentUniverse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/712:30 pmLAX - USM
2 stops32h 35mMultiple Airlines
Mon 4/147:30 pmUSM - LAX
2 stops28h 35mMultiple Airlines
Deal found 2/20$1,173
This oojo deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/612:30 amLAX - USM
1 stop28h 05mCathay Pacific
Mon 4/1410:55 amUSM - LAX
1 stop19h 30mCathay Pacific
Deal found 2/20$1,398
This Qatar Airways deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/154:10 pmLAX - USM
2 stops26h 30mQatar Airways
Mon 3/312:30 pmUSM - LAX
2 stops37h 30mQatar Airways
Deal found 2/19$1,677
This Turkish Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/152:00 pmLAX - USM
2 stops40h 55mTurkish Airlines
Sat 3/297:10 pmUSM - LAX
2 stops36h 50mTurkish Airlines
Deal found 2/19$1,860
This Booking.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/39:10 pmLAX - USM
3 stops33h 20mChina Airlines
Thu 7/172:35 pmUSM - LAX
2 stops21h 00mChina Airlines
Deal found 2/19$2,195
This British Airways deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/179:30 pmLAX - USM
2 stops33h 40mBritish Airways
Sun 6/294:25 pmUSM - LAX
2 stops35h 00mBritish Airways
Deal found 2/20$3,221

Find flights from Riverside to Koh Samui within your budget

Customize your flight search to find flights from Riverside to Koh 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, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Riverside

Fly to

Koh Samui

Route

Depart

Return

Price

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Wed 3/12

8:50 pm-8:00 am

1 stop21h 10m

Ko Samui

Wed 3/26

8:55 am-7:00 pm

1 stop24h 05m

$983

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Wed 3/12

11:40 am-7:45 am

2 stops30h 05m

Ko Samui

Wed 3/26

7:00 pm-7:00 am

2 stops26h 00m

$1,062

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Mon 4/7

12:30 pm-11:05 am

2 stops32h 35m

Ko Samui

Mon 4/14

7:30 pm-10:05 am

2 stops28h 35m

$1,173

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Sun 4/6

12:30 am-6:35 pm

1 stop28h 05m

Ko Samui

Mon 4/14

10:55 am-4:25 pm

1 stop19h 30m

$1,398

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Sat 3/15

4:10 pm-8:40 am

2 stops26h 30m

Ko Samui

Mon 3/31

2:30 pm-2:00 pm

2 stops37h 30m

$1,677

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Sat 3/15

2:00 pm-8:55 pm

2 stops40h 55m

Ko Samui

Sat 3/29

7:10 pm-6:00 pm

2 stops36h 50m

$1,860

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Thu 7/3

9:10 pm-8:30 pm

3 stops33h 20m

Ko Samui

Thu 7/17

2:35 pm-9:35 pm

2 stops21h 00m

$2,195

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Tue 6/17

9:30 pm-9:10 pm

2 stops33h 40m

Ko Samui

Sun 6/29

4:25 pm-1:25 pm

2 stops35h 00m

$3,221

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Sat 3/8

12:07 am-7:40 am

2 stops40h 33m

Ko Samui

Fri 3/21

5:50 pm-7:00 am

2 stops27h 10m

$4,201

Los AngelesKoh Samui

LAX - USM

LAXUSM

Los Angeles

Wed 5/7

4:25 pm-7:20 am

2 stops24h 55m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 13 results
1
2

Best time to book a flight from Riverside to Koh Samui

Have a flexible travel schedule? Discover the best time to fly to Koh Samui from Riverside with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Riverside to Koh Samui

Get recent, data-driven insights about flights from Riverside to Koh Samui including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from R1V to USM?

Find hourly flight availability from Riverside to Koh Samui. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

When flying from Riverside to Koh Samui, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Riverside to Koh Samui?

Use this chart to determine the cheapest time to fly round-trip from Riverside to Koh Samui. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their Riverside to Koh Samui flight should consider departing on Thursday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Koh Samui ranges from 2.3 - 19.3 inches per month. November is typically the wettest month, when rainfall can reach 19.3 in. February is typically the driest time to visit Koh Samui when rainfall is around 2.3 in.

Temperature in Koh Samui by month

Plan your trip to Koh Samui by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Koh Samui, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

Reviews of airlines servicing Koh Samui

Get insights into the airlines that provide service to Koh Samui. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Koh Samui. Reviews last updated February 20, 2025.
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Food

8.0

Comfort

8.2

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

EVA Air
8.4
Very good
1,200 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Food

8.0

Comfort

8.2

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Japan Airlines
8.3
Very good
1,440 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Food

8.0

Comfort

8.2

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Emirates
8.1
Very good
3,279 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Food

8.0

Comfort

8.2

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Singapore Airlines
8.1
Very good
1,299 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Food

8.0

Comfort

8.2

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

KLM
7.8
Good
1,333 reviews
EVA Air
8.4
Very good
1,200 reviews

Crew

8.6

Food

8.0

Comfort

8.2

Overall

8.4

Boarding

8.4

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Related info for your journey

Find useful and relevant information for your journey from Riverside to Koh Samui. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Koh Samui from Riverside?

    Ko Samui (USM) is the airport you will fly into if you book a flight from Riverside to Koh Samui. You should not have trouble finding flights to Ko Samui from Riverside; the airport handles an average of 0 inbound flights from Riverside per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Koh Samui airport from Riverside. It is only a 2.1 mi journey from Ko Samui (USM) to Koh Samui’s city center.

  • What are the cheapest airlines to fly from Riverside to Koh Samui one-way?

    The cheapest airline one-way is EVA Air, with whom users have recently found tickets for as low as $607. However, be on the lookout for offers from Singapore Airlines and Cathay Pacific, as they are both options that can get you from Riverside to Koh Samui for a low price.

  • Can I find deals for flights from Riverside to Koh Samui that include hotel bookings?

    Yes. In addition to deals on Riverside to Koh Samui flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Riverside to Koh Samui?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Riverside to Koh Samui.

  • Can I find deals for business class flights from Riverside to Koh Samui?

    Yes. Cheapflights offers flight deals from Riverside to Koh Samui by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Riverside?

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

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Alternative routes for Riverside to Koh Samui

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Top 3 airlines flying from Riverside to Koh Samui

Discover the top 3 airlines that operate flights from Riverside to Koh Samui. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Singapore AirlinesCheapest$1,009Average$1,430FlexibilityNo cancel feeOn-time81%
EVA AirCheapest$1,060Average$1,169FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$1,472Average$1,714FlexibilityNo cancel feeOn-time72%
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