How to find the cheapest flight from
Boston (BOS) to Koh Samui (USM)
What is the cheapest day to fly round-trip from Boston to Koh Samui?
Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Koh Samui. Check prices with Cheapflights to find a great deal for your trip.
When is the cheapest time to fly from Boston to Koh Samui (BOS - USM)?
Unlike in the evening, when flights are generally more expensive, you can save up to 16% on flights from Boston to Koh Samui by exploring options for tickets in the afternoon.
Related info for your journey
Useful info, stats and facts about Boston to Koh Samui flights.
Alternative routes for Boston to Koh Samui
Destination information for Koh Samui
Things to know before you go. Useful info for your trip from Boston to Koh Samui