$138 Find cheap flights from Hanoi to Koh Samui

In the last 3 days, the lowest price for a flight from Hanoi to Koh Samui was $138 for a one-way ticket and $494 for a round-trip.

Yes, you'll most likely have to show a valid passport before boarding the plane in Hanoi and on arrival in Koh Samui.

On your way to Koh Samui, you’ll fly out from Hanoi Noibai. You’ll be landing at Ko Samui.

We unfortunately don’t have that data for this specific route.

SkyTeam, and Star Alliance are the airline alliances operating flights between Hanoi and Koh Samui, with Star Alliance being the most commonly used for this route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Hanoi to Koh Samui.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Koh Samui from Hanoi is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Koh Samui with an airline and back to Hanoi with another airline. Booking your flights between Hanoi and USM can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Koh Samui from Hanoi up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.