Title: CA $780 Cheap Flights from San Francisco (SFO) to Samui Intl. Airport (USM) - Expedia.ca ![](https://images.trvl-media.com/place/6035013/26cceeb4-7a5f-4132-838c-9d0a557db5d2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $780 Cheap Flights from San Francisco (SFO) to Samui Intl. Airport (USM) [View CA $780 flight on Thu, Nov 27, 2025](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:SFO,to:USM,departure:27/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:779.60&airProductToken=AQp6CiYIwqQBEgIxNxiycSDzIyj2of4CMMOo_gI4VkAAWAFyBlZMWE9VWgomCMKkARICNzUY8yMgwVIorKn-AjChq_4COFZAAVgBcgZWTFhPVVoKKAjCpAESBDM5NDMYwVIg1GQo1az-AjCbrf4COFNAAVgBcgZWTFhPVVoSCggCEAEYASoCQlIYASIECAEQASgCKAMoBDAB) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from San Francisco International Airport (SFO) to Samui Intl. Airport (USM) - ![EVA Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BR.svg) EVA Airways [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:usm,departure:23/10/2025TANYT&leg2=from:usm,to:sfo,departure:30/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BR"}}]) - ![Singapore Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_SQ.svg) Singapore Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:usm,departure:23/10/2025TANYT&leg2=from:usm,to:sfo,departure:30/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SQ"}}]) - ![Qatar Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QR.svg) Qatar Airways [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:usm,departure:23/10/2025TANYT&leg2=from:usm,to:sfo,departure:30/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QR"}}]) - ![Cathay Pacific](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_CX.svg) Cathay Pacific [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:usm,departure:23/10/2025TANYT&leg2=from:usm,to:sfo,departure:30/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"CX"}}]) - ![China Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_CI.svg) China Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:usm,departure:23/10/2025TANYT&leg2=from:usm,to:sfo,departure:30/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"CI"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:usm,departure:23/10/2025TANYT&leg2=from:usm,to:sfo,departure:30/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![British Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.ca/Flights-Search?leg1=from:sfo,to:usm,departure:23/10/2025TANYT&leg2=from:usm,to:sfo,departure:30/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from San Francisco (SFO) to Samui Intl. Airport (USM) Prices were available within the past 7 days and start at CA $780 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ## Find the cheapest month to fly from San Francisco (SFO) to Koh Samui (USM) ### September is typically the cheapest month to fly From CA $968 - CA $1,535 per traveller. Flight from San Francisco to Samui Intl. Airport (SFO - USM) route information | Origin airport | San Francisco Intl. | | --- | --- | | Destination airport | Samui Intl. Airport | | Distance | 13084 km | ## San Francisco to Koh Samui Flights **The easy way to book your flights from San Francisco to Samui Intl. Airport**  With Expedia, it’s simple to find and book flights to Samui Intl. Airport from San Francisco whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 13 airlines that cover this route. There are nonstop flights to Samui Intl. Airport, too.   Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from San Francisco to Samui Intl. Airport today, tomorrow, or this week.   **Save dollars with cheap flights from San Francisco Intl., SFO to Samui Intl. Airport, USM**  Sort your search results by price to find great deals on your flight from San Francisco to Samui Intl. Airport—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Samui Intl. Airport from San Francisco currently is just rising to .   Here are more money-saving tips:  - Fly in when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Samui Intl. Airport   - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times  - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!  **Reasons to choose Expedia for your flight to Samui Intl. Airport from San Francisco**  Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Samui Intl. Airport with Expedia today. ## Frequently asked questions ### How much is a flight from San Francisco Airport to Ko Samui Airport? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight from SFO to Ko Samui Airport (USM) was . Great fares don't last long, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from San Francisco Intl. Airport (SFO) to USM? > Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the instructions on our [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from SFO to Ko Samui Airport (USM) that have flexible change policies? > Flights from San Francisco Airport to Ko Samui Airport offering flexible change policies are available from several airlines. Simply use our "No change fees" filter while searching. You'll only need to pay the cost difference between the two flights, without any extra fees to worry about. ### How far is the flight from San Francisco Airport to Ko Samui Airport? > The distance is around 13,200 kilometres. Neck pillow? Check. A change of clothes? Check. You'd be wise to pack all the essentials for this long-haul San Francisco to Koh Samui flight. ### Which airlines fly direct from San Francisco Intl. Airport (SFO) to Ko Samui Airport (USM)? > Flying directly between San Francisco Intl. Airport (SFO) and USM isn't possible at this time. However, you'll still be able to book a flight to Koh Samui with at least one stop. ### Are SFO to Ko Samui Airport (USM) flight tickets cheaper when they're purchased at the last minute? > Last-minute planners can sometimes score a bargain, with some super cheap fares from San Francisco Intl. Airport (SFO) to Ko Samui Airport surfacing a few weeks prior to the departure date. If you'd rather book ahead of time, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines publish prices that far in advance. ## Explore a world of travel with Expedia - Flights ### Flights - [Flights from Can Tho to Koh Samui](https://www.expedia.ca/lp/flights/10260/6035013/can-tho-to-koh-samui) - [Flights from New Cumberland to Koh Samui](https://www.expedia.ca/lp/flights/10384/6035013/new-cumberland-to-koh-samui) - [Flights from Kitchener to Koh Samui](https://www.expedia.ca/lp/flights/10579/6035013/kitchener-to-koh-samui) - [Flights from Vernon to Koh Samui](https://www.expedia.ca/lp/flights/10619/6035013/vernon-to-koh-samui) - [Flights from Emerald to Koh Samui](https://www.expedia.ca/lp/flights/1137/6035013/emerald-to-koh-samui) - [Flights from Matthew Town to Koh Samui](https://www.expedia.ca/lp/flights/11611/6035013/matthew-town-to-koh-samui) - [Flights from Gabes to Koh Samui](https://www.expedia.ca/lp/flights/1272/6035013/gabes-to-koh-samui) - [Flights from Hanoi to Koh Samui](https://www.expedia.ca/lp/flights/1428/6035013/hanoi-to-koh-samui) - 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[Flights from Saint John to Koh Samui](https://www.expedia.ca/lp/flights/602956/6035013/saint-john-to-koh-samui) - [Flights from Rochester to Koh Samui](https://www.expedia.ca/lp/flights/602966/6035013/rochester-to-koh-samui) - [Flights from Hua Hin to Koh Samui](https://www.expedia.ca/lp/flights/6049558/6035013/hua-hin-to-koh-samui) - [Flights from Mumbai to Koh Samui](https://www.expedia.ca/lp/flights/6050062/6035013/mumbai-to-koh-samui) - [Flights from Johannesburg to Koh Samui](https://www.expedia.ca/lp/flights/6051471/6035013/johannesburg-to-koh-samui) - [Flights from Bengaluru to Koh Samui](https://www.expedia.ca/lp/flights/6053307/6035013/bengaluru-to-koh-samui) - [Flights from Prescott to Koh Samui](https://www.expedia.ca/lp/flights/6054768/6035013/prescott-to-koh-samui) - [Flights from Chiang Mai to Koh Samui](https://www.expedia.ca/lp/flights/6056197/6035013/chiang-mai-to-koh-samui) - [Flights from Brownsville to Koh Samui](https://www.expedia.ca/lp/flights/6058982/6035013/brownsville-to-koh-samui) - 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[Flights from Key Largo to Koh Samui](https://www.expedia.ca/lp/flights/8369/6035013/key-largo-to-koh-samui) - [Flights from Marble Bar to Koh Samui](https://www.expedia.ca/lp/flights/8704/6035013/marble-bar-to-koh-samui) - [Flights from Papa Westray to Koh Samui](https://www.expedia.ca/lp/flights/9461/6035013/papa-westray-to-koh-samui) - [Flights from Pangkor Island to Koh Samui](https://www.expedia.ca/lp/flights/9516/6035013/pangkor-island-to-koh-samui) - [Flights from Windsor to Koh Samui](https://www.expedia.ca/lp/flights/9542/6035013/windsor-to-koh-samui) - [Flights from Da Nang to Koh Samui](https://www.expedia.ca/lp/flights/974/6035013/da-nang-to-koh-samui) \*Available to Expedia members.