$719 Cheap Flights from Sacramento (SMF) to Samui Intl. Airport (USM)

View $719 flight on Wed, Jan 14, 2026Opens in a new window

Popular airlines from Sacramento Intl. Airport (SMF) to Samui Intl. Airport (USM)

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Cheap Flights from Sacramento to Samui Intl. Airport (SMF-USM)

Prices were available within the past 7 days and start at $719 for one-way flights and $1,249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jan 14 - Wed, Jan 21
SMF
Sacramento
USM
Koh Samui
$1,249 Roundtrip, found 6 days ago
$1,249
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jan 14 from Sacramento to Koh Samui, returning Wed, Jan 21, priced at $1,249 found 6 days ago
American Airlines
Wed, Jan 14 - Wed, Jan 21
SMF
Sacramento
USM
Koh Samui
$1,262 Roundtrip, found 6 days ago
$1,262
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jan 14 from Sacramento to Koh Samui, returning Wed, Jan 21, priced at $1,262 found 6 days ago
Air Canada
Thu, Nov 27 - Sun, Dec 7
SMF
Sacramento
USM
Koh Samui
$1,322 Roundtrip, found 2 days ago
$1,322
Roundtrip
found 2 days ago
Select Air Canada flight, departing Thu, Nov 27 from Sacramento to Koh Samui, returning Sun, Dec 7, priced at $1,322 found 2 days ago
American Airlines
Tue, Nov 25 - Thu, Dec 4
SMF
Sacramento
USM
Koh Samui
$1,323 Roundtrip, found 1 day ago
$1,323
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Nov 25 from Sacramento to Koh Samui, returning Thu, Dec 4, priced at $1,323 found 1 day ago
American Airlines
Wed, Jan 14 - Wed, Jan 21
SMF
Sacramento
USM
Koh Samui
$1,329 Roundtrip, found 6 days ago
$1,329
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jan 14 from Sacramento to Koh Samui, returning Wed, Jan 21, priced at $1,329 found 6 days ago
United
Tue, Nov 25 - Wed, Dec 3
SMF
Sacramento
USM
Koh Samui
$1,331 Roundtrip, found 1 day ago
$1,331
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 25 from Sacramento to Koh Samui, returning Wed, Dec 3, priced at $1,331 found 1 day ago
American Airlines
Wed, Jan 14 - Wed, Jan 21
SMF
Sacramento
USM
Koh Samui
$1,336 Roundtrip, found 6 days ago
$1,336
Roundtrip
found 6 days ago
Select American Airlines flight, departing Wed, Jan 14 from Sacramento to Koh Samui, returning Wed, Jan 21, priced at $1,336 found 6 days ago
United
Wed, Apr 15 - Sun, Apr 26
SMF
Sacramento
USM
Koh Samui
$1,342 Roundtrip, found 1 day ago
$1,342
Roundtrip
found 1 day ago
Select United flight, departing Wed, Apr 15 from Sacramento to Koh Samui, returning Sun, Apr 26, priced at $1,342 found 1 day ago
United
Wed, Apr 15 - Sun, Apr 26
SMF
Sacramento
USM
Koh Samui
$1,347 Roundtrip, found 1 day ago
$1,347
Roundtrip
found 1 day ago
Select United flight, departing Wed, Apr 15 from Sacramento to Koh Samui, returning Sun, Apr 26, priced at $1,347 found 1 day ago
United
Wed, Jan 14 - Wed, Jan 21
SMF
Sacramento
USM
Koh Samui
$1,351 Roundtrip, found 6 days ago
$1,351
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jan 14 from Sacramento to Koh Samui, returning Wed, Jan 21, priced at $1,351 found 6 days ago

Frequently asked questions

How much does a flight from Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM) cost?
Get a cheap one-way flight from $719 or cheap return flight from $1,249 from Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM)?
January is the most affordable month to fly from SMF to USM. Avoiding peak travel times is often the key to finding better fares.
What is the cheapest airline that flies from Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM)?
To find the cheapest airline that'll fly you from SMF to USM, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM)?
You'll have to book a flight with a layover if you're traveling from Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from SMF to USM?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM)?
To avoid possible delays on the Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM) route, aim to fly before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM) last-minute?
Last-minute bookings from SMF to USM are generally more expensive. To secure the best rates, start searching for flights as soon as possible. That being said, if you can play around with your travel dates, you may score a cheap ticket just before your departure.
Is it cheaper to book a SMF to USM flight and hotel package?
You can save money by securing a SMF to USM flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. Once you've selected your ideal accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Sacramento Intl. Airport (SMF) to Ko Samui Airport (USM)?
If you booked your SMF to USM flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
Sacramento Intl.
Destination airport
Samui Intl. Airport
Roundtrip price
$1,249
Distance
8161 mi

Book with confidence

Sacramento to Samui Intl. Airport Flights

The cheapest times to fly from Sacramento to Samui Intl. Airport

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sacramento to Samui Intl. Airport are during the month of January. You can find some of the cheapest flights from Sacramento to Samui Intl. Airport with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sacramento to Samui Intl. Airport

Sunday is one of the best days to book for cheap flights from Sacramento to Samui Intl. Airport: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sacramento to Samui Intl. Airport

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sacramento to Samui Intl. Airport in 2025. You can also book with separate airlines for your outbound and return journeys, from $719 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sacramento to Samui Intl. Airport flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sacramento to Samui Intl. Airport airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Sacramento to Samui Intl. Airport Flights
*Available to One Key members.