Cheap Flights from Sihanoukville (KOS) to Hanoi (HAN)

View AU$424 flight on Tue, 23 Dec. 2025Opens in a new window

Popular airlines from Sihanoukville (KOS) to Noi Bai Intl. Airport (HAN)

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Cheap Flights from Sihanoukville (KOS) to Hanoi (HAN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Cambodia
Sat, 26 Jul. - Sat, 2 Aug.
KOS
Sihanoukville
HAN
Hanoi
AU$948 Return, found 3 days ago
AU$948
Return
found 3 days ago
Select Air Cambodia flight, departing Sat, 26 Jul. from Sihanoukville to Hanoi, returning Sat, 2 Aug., priced at AU$948 found 3 days ago
Air Cambodia
Sat, 26 Jul. - Sat, 2 Aug.
KOS
Sihanoukville
HAN
Hanoi
AU$979 Return, found 3 days ago
AU$979
Return
found 3 days ago
Select Air Cambodia flight, departing Sat, 26 Jul. from Sihanoukville to Hanoi, returning Sat, 2 Aug., priced at AU$979 found 3 days ago
Flight from Sihanoukville to Hanoi route information
Origin airport
Sihanoukville
Destination airport
Noi Bai Intl.
Return price
AU$948
Distance
1197 km

Your quick guide to flights from Sihanoukville to Hanoi

Pick up great flights from Sihanoukville to Hanoi

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Sihanoukville to Hanoi. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Sihanoukville to Hanoi that take around hours.

Find cheap flights from Sihanoukville to Hanoi

From the great flight deals with prices currently ranging from AU$948 to AU$979, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Sihanoukville to Hanoi around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Hanoi is normally in July.

Reasons to book your flight from Sihanoukville to Hanoi with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Sihanoukville to Hanoi across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Hanoi right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Sihanoukville Airport (KOS) to HAN?
The lowest price advertised for a round-trip journey from KOS to HAN is AU$948. But you better get moving. This figure is taken from fares offered within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sihanoukville Airport (KOS) to HAN?
This can differ from airline to airline, as each one has its own set of terms and conditions. Visit the Customer Service Portal, where there are easy-to-follow instructions on how to cancel your flight online.
How do I find cheap flights from Sihanouk Intl. Airport to Noi Bai Intl. Airport (HAN) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sihanouk Intl. Airport to Noi Bai Intl. Airport (HAN) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sihanoukville Airport (KOS) to HAN?
A flight distance of just 1 200 kilometres separates Preah Sihanouk and Hanoi. Once you're up in the skies, you won't have time to do much more than read the in-flight magazine.
Which airlines fly direct from Sihanoukville Airport (KOS) to HAN?
Flying directly between KOS and Hanoi Intl. Airport isn't possible at this time. However, you'll still be able to book a flight to Hanoi with at least one stop.
Are KOS to HAN flight tickets cheaper when they're purchased at the last minute?
Flight tickets from Sihanouk Intl. Airport to Noi Bai Intl. Airport (HAN) are available up to a year prior to departure on Expedia. And although you may occasionally nab a fantastic last-minute deal, it's not something you should bank on. Also, booking your flights well in advance means you'll have more choices — and you can avoid getting stuck in the dreaded middle seat! We regularly update our fares to bring you the biggest bargains, so check back often for all the latest specials.

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