In terms of precipitation, rainfall in Hanoi ranges from 14.0 - 296.0 inches per month. August is typically the wettest month, when rainfall can reach 296.0 mm. December is typically the driest time to visit Hanoi when rainfall is around 14.0 mm.

If weather is an important factor for your trip to Hanoi, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.0 C).

What is the cheapest time of day to fly from USM to HAN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ko Samui to Hanoi as you normally would.

Can I find deals for flights from Ko Samui to Hanoi that include hotel bookings?

Yes. In addition to deals on Ko Samui to Hanoi flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Ko Samui to Hanoi?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to Hanoi.

Can I find deals for business class flights from Ko Samui to Hanoi?

Yes. Cheapflights offers flight deals from Ko Samui to Hanoi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£247+ Cheap Flights from Ko Samui to Hanoi

Cheap flight deals from Ko Samui to Hanoi

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Ko Samui to Hanoi
Explore the most affordable flight options available from Ko Samui to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2026.

Thu 15/1007:50 -

1 stop5h 20m

Sun 18/1014:00 -

1 stop6h 30m

Deal found 13/9£247

Sun 25/1008:55 -

1 stop23h 40m

Sun 1/1109:15 -

1 stop5h 30m

Deal found 10/9£252

Thu 5/1119:00 -

1 stop5h 10m

Mon 9/1109:05 -

1 stop6h 15m

Deal found 11/9£387

Fri 18/919:15 -

1 stop14h 20m

Sat 26/920:45 -

1 stop14h 00m

Deal found 12/9£455

Sat 12/906:55 -

1 stop14h 10m

Sat 19/912:45 -

1 stop8h 05m

Deal found 10/9£526

Thu 24/1208:40 -

2 stops9h 35m

Thu 14/119:25 -

2 stops20h 10m

Deal found 13/9£613

Thu 8/1006:00 -

2 stops12h 10m

Fri 16/1010:55 -

2 stops20h 15m

Deal found 9/9£616

Find flight deals from Ko Samui to Hanoi

Round-trip from	£247

15/10-18/10
2 total stops
11h 50m total
Ko Samui to Hanoi

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Thu 15/10

07:50-13:10

1 stop5h 20m

Hanoi Noibai

Sun 18/10

14:00-20:30

1 stop6h 30m

£247

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Sun 25/10

08:55-08:35

1 stop23h 40m

Hanoi Noibai

Sun 1/11

09:15-14:45

1 stop5h 30m

£252

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Mon 21/9

06:00-21:05

1 stop15h 05m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£255

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Sat 19/9

06:00-17:55

1 stop11h 55m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£255

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Sun 20/9

08:00-00:15

2 stops16h 15m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£306

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Wed 23/9

18:15-19:00

1 stop24h 45m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£353

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Tue 22/9

19:10-15:35

2 stops20h 25m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£363

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Sat 12/12

19:00-18:15

2 stops23h 15m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£364

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Mon 26/10

20:20-18:15

2 stops21h 55m

Hanoi Noibai

Mon 2/11

19:25-16:15

2 stops20h 50m

£551

Ko SamuiHanoi

USM Ko Samui - HAN Hanoi Noibai

USMHAN

Ko Samui

Thu 5/11

07:55-18:15

2 stops10h 20m

Hanoi Noibai

Mon 9/11

19:25-17:00

2 stops21h 35m

£551

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 13 resultsSorted by cheapest first

Best time to book a flight from Ko Samui to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi from Ko Samui with our price prediction graph.

USM-HAN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Can I find deals for flights from Ko Samui to Hanoi that include hotel bookings?
Yes. In addition to deals on Ko Samui to Hanoi flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ko Samui to Hanoi?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to Hanoi.
Can I find deals for business class flights from Ko Samui to Hanoi?
Yes. Cheapflights offers flight deals from Ko Samui to Hanoi by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

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Alternative routes for Ko Samui to Hanoi

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Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Hanoi?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Hanoi from Ko Samui.

Can Cheapflights find flights from Ko Samui to Hanoi with no change fees?

Certainly. Search results for flights to Hanoi from Ko Samui shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Cheap flights from Ko Samui to Hanoi from £247

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ko Samui to Hanoi

Cheapest flights from Ko Samui to HanoiExplore the most affordable flight options available from Ko Samui to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2026.

Explore the most affordable flight options available from Ko Samui to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2026.

Best flights from Ko Samui to HanoiDiscover carefully curated flight deals from Ko Samui to Hanoi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 September 2026.

Discover carefully curated flight deals from Ko Samui to Hanoi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 September 2026.

Last-minute flights from Ko Samui to HanoiDiscover last-minute flight deals from Ko Samui to Hanoi. Data last updated 14 September 2026 and is based on user searches.

Discover last-minute flight deals from Ko Samui to Hanoi. Data last updated 14 September 2026 and is based on user searches.

One-way flights from Ko Samui to HanoiSearch for one-way flight options from Ko Samui to Hanoi. Find affordable one-way fares based on user searches. Data last updated 14 September 2026.

Search for one-way flight options from Ko Samui to Hanoi. Find affordable one-way fares based on user searches. Data last updated 14 September 2026.

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Best time to book a flight from Ko Samui to Hanoi

Have a flexible travel schedule? Discover the best time to fly to Hanoi from Ko Samui with our price prediction graph.

Related info for your journey

Can I find deals for flights from Ko Samui to Hanoi that include hotel bookings?

How can I find direct flights from Ko Samui to Hanoi?

Can I find deals for business class flights from Ko Samui to Hanoi?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ko Samui to Hanoi

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Hanoi by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Vietnam

Book a non-stop flight to one of these other cities located in Vietnam.

Search flights from Ko Samui to Hanoi by cabin class

Find flights from Ko Samui to Hanoi, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Hanoi

Explore flights to Hanoi departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 14 September 2026.

Ko Samui and Hanoi flights

Browse other Ko Samui and Hanoi flight options. Last updated on 14 September 2026.

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Can Cheapflights notify me if prices for flights from Ko Samui to Hanoi become cheaper?

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Cheapest flights from Ko Samui to Hanoi
Explore the most affordable flight options available from Ko Samui to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 September 2026.

Best flights from Ko Samui to Hanoi
Discover carefully curated flight deals from Ko Samui to Hanoi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 September 2026.

Last-minute flights from Ko Samui to Hanoi
Discover last-minute flight deals from Ko Samui to Hanoi. Data last updated 14 September 2026 and is based on user searches.

One-way flights from Ko Samui to Hanoi
Search for one-way flight options from Ko Samui to Hanoi. Find affordable one-way fares based on user searches. Data last updated 14 September 2026.