Cheap flights from Hanoi to Koh Samui

One-way fares from $143 · HAN → USM · prices found by travellers in the last 48 hours

Compare all dates Koh Samui → Hanoi
Cheapest fare
$143

Thai AirAsia · Sun, Nov 8

Cheapest month
November

from $143

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 00m

1,420 km

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Cheapest month to fly from Hanoi to Koh Samui

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $143
  2. December 2026 $175
  3. January 2027 $176

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

Thai AirAsia
Depart09:15 Sun, Nov 8HAN → USM 3h 05m · 1 stop
$143one way, per person
View deal
Thai AirAsia
Depart20:50 Mon, Nov 9HAN → USM 3h 00m · 1 stop
$160one way, per person
View deal
Vietravel Airlines
Depart10:25 Tue, Nov 10HAN → USM 3h 10m · 1 stop
$161one way, per person
View deal
Thai AirAsia
Depart20:50 Wed, Nov 11HAN → USM 3h 00m · 1 stop
$161one way, per person
View deal
Thai AirAsia
Depart20:50 Sat, Nov 28HAN → USM 3h 00m · 1 stop
$161one way, per person
View deal
Vietjet
Depart12:15 Mon, Nov 16HAN → USM 3h 00m · 1 stop
$169one way, per person
View deal
Vietjet
Depart15:50 Sat, Nov 7HAN → USM 3h 00m · 1 stop
$181one way, per person
View deal
Vietravel Airlines
Depart10:25 Fri, Nov 6HAN → USM 3h 10m · 1 stop
$182one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Koh Samui

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in Koh SamuiCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in Koh SamuiTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in Koh SamuiPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in Koh SamuiCompare rental cars from major brands on EconomyBookings Compare cars →

Stay connected

eSIM for ThailandMobile data from the moment you land, by Airalo Get eSIM →

About flights from Hanoi to Koh Samui

Hanoi (HAN) and Koh Samui (USM) are about 1,420 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 00m. Over the next few months, one-way fares start from $143, and November 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Hanoi to Koh Samui?

The cheapest one-way fare we've seen recently is $143 with Thai AirAsia, departing Sunday, November 8, 2026. Over the coming months, the lowest fare in each month ranges from $143 to $176.

What is the cheapest month to fly from Hanoi to Koh Samui?

November 2026 currently has the lowest fares, from $143 one way.

Are there direct flights from Hanoi to Koh Samui?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Hanoi to Koh Samui?

The quickest journey we've seen takes about 3h 00m. Hanoi and Koh Samui are around 1,420 km apart.

Which airlines fly from Hanoi to Koh Samui?

Recent fares on this route were with Thai AirAsia, Vietravel Airlines and Vietjet.

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