The cheapest times to fly from USM to MIA are

  • January 15th to April 1st (except the week of March 19th)
  • April 23rd to June 24th (except the week of May 28th)
  • September 10th to October 7th
  • October 29th to December 2nd (except the week of November 12th)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from USM to MIA is mid May. Prices can be as high as $3464 for Sunday flights during early January, or as low as $1643 for Thursday flights around mid May.


When to Fly to Miami

Flying from Koh Samui (USM) to Miami, FL (MIA) will usually cost between $1691 to $2404 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid May with an average ticket price of $1684. Due to high demand the most expensive time to fly is early January, with an average price of $2854. Planning your trip to low-cost times can easily save you $1170 on economy flights and even more on first-class flights. Generally, any price below $1844 can be considered a good price for a round-trip USM to MIA flight.

See below for a graph of average weekly prices for the USM to MIA route. All prices are for round-trip tickets in USD.

USM to MIA Flight Prices

Compared to other flights, the USM to MIA flight is more expensive than the average and costs slightly more than the average flight leaving from Ko Samui. The average price per mile (for a direct flight) is $0.11, which is far below average.


Flight Prices by Day of the Week

Thursday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $1349 (32%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Thursday and returning a week later will cost an average of $1881. Return trip prices are from the MIA to USM flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from USM to MIA can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 18 hour 58 minutes may not be realistic.


Flight Hacking USM to MIA

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from USM to MIA — but Champion Traveler does!

Hack #1: Hong Kong (USM > HKG > MIA)

  • Price for both tickets: $1410
  • Average savings: $435 (23.56%)

See USM to SIN flights

Hack #2: Singapore (USM > SIN > MIA)

  • Price for both tickets: $1416
  • Average savings: $428 (23.21%)

See USM to HKG flights

Hack #3: Los Angeles, CA (USM > LAX > MIA)

  • Price for both tickets: $1441
  • Average savings: $403 (21.85%)

See USM to LAX flights


Flight Questions Answered

Still have questions about flying from USM to MIA? We’ve got answers.

Which airlines fly this route?

You can find 19 major airlines flying this route most often: Aeroflot, Air France, American, Austrian, Bangkok Airways, British Airways, Cathay Pacific, El Al, Finnair, JAL, KLM, Lufthansa, Malaysia Airlines, Qatar Airways, SAS, Singapore Airlines, SWISS, THAI, Turkish Airlines, and potentially more during busy seasons.

How far away is it from Miami International Airport to Samui Airport?

The distance between the two airports is roughly 9993 miles or 16082 kilometers.

How long does it take to fly from USM to MIA?

The real-world flight time for a nonstop USM to MIA flight is about 18 hour 58 minutes.

How many flights go between Koh Samui and Miami, FL?

It depends on the day of the week and the date, but a typical day might have around 13 available flights from USM to MIA.


Airport Location Info


Departing Airport

Origination code USM
Origination airport name Samui Airport
City Koh Samui
Country Thailand
Latitude 9.5
Longitude 100.1

Return Airport

Destination code MIA
Destination airport name Miami International Airport
City Miami, FL
Country the United States
Latitude 25.8
Longitude -80.3


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.