Cheap flights from Miami to Koh Samui
Cheapest current fares: $875 in August 2026 on connecting flights.
Cheapest month-by-month fares
Lowest available fare per calendar month from Miami (MIA) to Koh Samui (USM). Refreshed daily.
Miami (MIA) → Koh Samui (USM)
- August 2026 $875
Frequently asked questions
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What is the cheapest month to fly from Miami to Koh Samui?
Based on current 6-month forward fare data, August 2026 is the cheapest month to fly from Miami (MIA) to Koh Samui (USM), with fares starting from $875.
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What is the lowest current fare from MIA to USM?
The lowest currently-listed fare from Miami (MIA) to Koh Samui (USM) is $875 on 2026-08-03.
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Is there a direct flight from Miami to Koh Samui?
There is currently no non-stop service from MIA to USM. Most travellers connect through a hub airport. See our route page for current stopover options.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.