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Cheap Flights from San Francisco to Koh Samui (USM)
Expected price increase
20%
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1 Passenger
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Passengers
Adults 18+
Children 2-11
Infants under 2
Lap infants under 2
Flight Classes
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First Class
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Average price per month
- Low Season: January
- High Season: September
- Prices for this route are volatile and fluctuate from month to month.
- The cheapest flights are usually bought in January, March and February.
- High season months are July, April and September. However, it's not the rule and you should always search current flight deals.
- For example, the flight from San Francisco to Koh Samui is currently 38% cheaper than average.
Price increase as travel date approaches
- Flight prices for this route increase by 29% if you book last minute. Hover on the graph above to see for yourself!.
- To grab the lowest price possible, you should buy your flight around 64 days before departure!
- Consider booking at least 30 days before departure to increase your chances of getting a low price.
- Generally, it's safe to book between 90 and 60 days in advance.
San Francisco to Koh Samui Flight Information
| Flights Depart From | San Francisco (SFO) |
| Flights Arriving To | Koh Samui (USM) |
| Distance | 13165.26 km |
| Current Discount | 38 % |
| Average Price | $5203.23 |
| Good Deal | $883.05 |
| Cheapest Airlines | Singapore Airlines, EVA Air, United Airlines |
| Popular Airlines | Singapore Airlines, EVA Air, United Airlines |
| Flight Duration | 16 hours 52 minutes |
| Flights Depart From |
| San Francisco (SFO) |
| Flights Arrive In |
| Koh Samui (USM) |
| Distance |
| 13165.26 km |
| Flight Duration |
| 16 hours 52 minutes |
| Current Discount |
| 38 % |
| Average Price |
| $5203.23 |
| Good Deal |
| $883.05 |
| Cheapest Airlines |
| Singapore Airlines, EVA Air, United Airlines |
| Popular Airlines |
| Singapore Airlines, EVA Air, United Airlines |
Most Reliable Airlines flying to Koh Samui
- According to our data, Singapore Airlines, EVA Air and United Airlines have the highest overall rating.
- The following airlines have the highest chance of on time arrivals: Singapore Airlines and United Airlines.
- If customer service is important for you then you should consider flying with Singapore Airlines and United Airlines.
| Airline | Overall Rating | On time arrival | Check-in & Boarding | Cleanliness | Customer Service | Food & Beverage | Entertainment | Legroom | Seat Comfort |
|---|---|---|---|---|---|---|---|---|---|
Singapore Airlines |
4.3 | 4.5 | 4.5 | 4.5 | 4.5 | 4.0 | 4.5 | 4.0 | 4.0 |
EVA Air |
4.2 | - | 4.5 | 4.5 | 4.5 | 4.0 | 4.0 | 4.0 | 4.0 |
United Airlines |
3.3 | 4.0 | 3.5 | 3.5 | 3.5 | 3.0 | 3.0 | 3.0 | 3.0 |
Overall Rating
4.5
On time arrival
4.5
Check-in & Boarding
4.5
Cleanliness
4.5
Customer Service
4.5
Food & Beverage
4.0
Entertainment
4.5
Legroom
4.0
Seat Comfort
4.0
Overall Rating
4.0
On time arrival
-
Check-in & Boarding
4.5
Cleanliness
4.5
Customer Service
4.5
Food & Beverage
4.0
Entertainment
4.0
Legroom
4.0
Seat Comfort
4.0
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.0
Seat Comfort
3.0
Good to know:
- Koh Samui is the major airport in Koh Samui and surrounding area.
Enter your preferred departure airport and travel dates into the search form above to unlock the latest Koh Samui flight deals.
Track the flight prices from San Francisco to Koh Samui by subscribing to Fare Alerts to never miss the best deals possible.
Did you know that you could find even better deals when you use our Mobile App?. How to get the cheapest flight to Koh Samui?
Currently there is a 38% discount on flights to Koh Samui. This price won't stay too long and you should consider buying now.
Flight prices for this route are expected to go up by 20%.
Awesome Deals
notifications_active In the past few days the following airlines offered the lowest prices from San Francisco to Koh Samui: Singapore Airlines, EVA Air and United Airlines..
Singapore AirlinesMon, 20 Apr SFO USM
Mon, 04 May USM SFO Trip duration: 14 days$817.48
Singapore AirlinesThu, 05 Mar SFO USM
Fri, 13 Mar USM SFO Trip duration: 8 days$897.33
Singapore AirlinesMon, 02 Mar SFO USM
Mon, 16 Mar USM SFO Trip duration: 14 days$934.33
Singapore AirlinesWed, 04 Mar SFO USM
Wed, 18 Mar USM SFO Trip duration: 14 days$934.33
EVA AirWed, 14 Jan SFO USM
Thu, 22 Jan USM SFO Trip duration: 8 days$975.97
EVA AirMon, 23 Feb SFO USM
Wed, 04 Mar USM SFO Trip duration: 9 days$1017.97
EVA AirMon, 19 Jan SFO USM
Wed, 04 Feb USM SFO Trip duration: 16 days$1020.97
EVA AirMon, 19 Jan SFO USM
Wed, 04 Feb USM SFO Trip duration: 16 days$1021.97
United AirlinesSat, 14 Feb SFO USM
Sat, 21 Feb USM SFO Trip duration: 7 days$1086.43
Singapore AirlinesMon, 15 Dec SFO USM
Sun, 21 Dec USM SFO Trip duration: 6 days$1569.97
EVA AirTue, 16 Dec SFO USM
Fri, 26 Dec USM SFO Trip duration: 10 days$1868.97
EVA AirThu, 25 Dec SFO USM
Thu, 01 Jan USM SFO Trip duration: 7 days$2221.97
Singapore AirlinesMon, 22 Dec SFO USM
Tue, 30 Dec USM SFO Trip duration: 8 days$2504.97
Singapore AirlinesSat, 20 Dec SFO USM
Fri, 26 Dec USM SFO Trip duration: 6 days$2728.97
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Inexpensive Cars in Koh Samui
Frequently Asked Questions
- How long is a direct flight from San Francisco to Koh Samui?A direct flight from San Francisco to Koh Samui takes roughly 16 hours 52 minutes.
- Which airlines offer cheap airfare from San Francisco to Koh Samui?That may change at any time. But in the past 14 days, the cheapest tickets we've found were with Singapore Airlines, EVA Air and United Airlines.
- Do I need my passport to fly from San Francisco to Koh Samui?Yes, you most certainly do.
- Which airlines fly from San Francisco to Koh Samui most often?Singapore Airlines, EVA Air and United Airlines are the top.
- Which airport will I be flying from in San Francisco?When departing from San Francisco you'll be flying out of San Francisco International.
- Which airport will I be flying from in Koh Samui?When departing from Koh Samui you'll be flying out of Koh Samui.
- How is Justfly.com so good at finding cheap flights?We've taken an oath of secrecy and vowed never to say. Just kidding. Our team and technology allows us to browse through hundreds of airlines and hundreds of thousands of flights to find the lowest prices. Then we pass the savings on to you.
- Can Justfly.com help me save money in any other way?We're glad you asked. We help you save money with our Fare Alerts, Price Trend charts and multi-ticket bookings. We also help you save on hotels and car rentals.
- How many airlines does Justfly.com search to find affordable flights?We typically search over 400 airlines.
- Can Justfly.com's Price Trend tool really tell me the best time to buy tickets?Absolutely! That's why we've made it accessible to you.
- Will the price of my flight change?Flight prices and availability change often. To counter this, we update the important data as often as possible every step of the way.
- How will I receive my booking confirmation and travel information?We'll send you an email with the important details!
- Can you cancel or change Justfly.com flights?You sure can. But give us a call first. We'll do our best to find a solution. However, in some cases, if we cancel your booking, we'll have to charge an administrative fee of $75 (domestic), $125 (trans-border between Canada and USA) and $200 (international).
- Are Justfly.com's tickets refundable?All bookings are currently non-refundable.
- How do I contact Justfly.com?To find answers to all of your questions, click here to visit our support page.