The cheapest times to fly from USM to KOA are

  • March 5th to April 15th (except the week of March 26th)
  • May 7th to July 22nd
  • October 29th to December 9th

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 KOA is early to mid June. Prices can be as high as $5138 for Friday flights during early January, or as low as $1502 for Monday flights around early to mid June.


When to Fly to Kailua-Kona

Flying from Koh Samui (USM) to Kona, HI (KOA) will usually cost between $1502 to $3701 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early to mid June with an average ticket price of $1502. Due to high demand the most expensive time to fly is early January, with an average price of $4072. Planning your trip to low-cost times can easily save you $2570 on economy flights and even more on first-class flights. Generally, any price below $2395 can be considered a good price for a round-trip USM to KOA flight.

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

USM to KOA Flight Prices

Compared to other flights, the USM to KOA flight is more expensive than the average and costs more than the average flight leaving from Ko Samui. The average price per mile (for a direct flight) is $0.22, which is below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to depart and return on this flight. Fridays 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 $504 (13%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $2283. Return trip prices are from the KOA 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 KOA can generally find a 2-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 13 hour 22 minutes may not be realistic.


Flight Hacking USM to KOA

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 KOA — but Champion Traveler does!

Hack #1: Kuala Lumpur (USM > KUL > KOA)

  • Price for both tickets: $1472
  • Average savings: $923 (38.54%)

See USM to LAX flights

Hack #2: Los Angeles, CA (USM > LAX > KOA)

  • Price for both tickets: $1590
  • Average savings: $806 (33.63%)

See USM to KUL flights

Hack #3: Bangkok (USM > BKK > KOA)

  • Price for both tickets: $1624
  • Average savings: $772 (32.21%)

See USM to BKK flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 7 major airlines flying this route most often: ANA, Bangkok Airways, China Airlines, JAL, Malaysia Airlines, Philippine Airlines, Turkish Airlines, and potentially more during busy seasons.

How far away is it from Ellison Onizuka Kona International at Keahole Airport to Samui Airport?

The distance between the two airports is roughly 6881 miles or 11074 kilometers.

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

The real-world flight time for a nonstop USM to KOA flight is about 13 hour 22 minutes.

How many flights go between Koh Samui and Kona, HI?

It depends on the day of the week and the date, but a typical day might have around 4 available flights from USM to KOA.


Airport Location Info


Departing Airport

Origination codeUSM
Origination airport nameSamui Airport
CityKoh Samui

Return Airport

Destination codeKOA
Destination airport nameEllison Onizuka Kona International at Keahole Airport
CityKona, HI
Countrythe United States


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.