135 € Cheap Flights from Hanoi to Siem Reap–Angkor

Compare Hanoi to Siem Reap–Angkor flight deals

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Flight deals from Hanoi to Siem Reap–Angkor

Looking for a cheap last-minute deal or the best return flight from Hanoi Airport to Siem Reap–Angkor Airport? If you want to travel next month, return fares start from 137 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Hanoi to Siem Reap–Angkor

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Hanoi to Siem Reap–Angkor flights are currently cheapest in August.

Direct flights from Hanoi to Siem Reap–Angkor

Hanoi to Siem Reap–Angkor : Alternative routes

Compare routes from Hanoi to Siem Reap below. You may find an airport to fly into that's cheaper, faster, or easier than Siem Reap–Angkor .

Hanoi to Siem Reap: Flight information

The things to know before you go.
Cheapest flight found135 €
Cheapest month to flyAugust
Average flight time1 hr, 42 mins
Most popular airlineVietnam Airlines
Average flights per week77

Finding cheap flights from Hanoi to Siem Reap–Angkor : Frequently asked questions

The best price we found for a return flight from Hanoi to Siem Reap–Angkor is 135 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
1 hour and 42 minutes is the average flight time from Hanoi to Siem Reap–Angkor .
Vietnam Airlines, VietJet Air and Air France fly direct from Hanoi to Siem Reap–Angkor .
As of August 2026, there are 77 flights per week flying from Hanoi to Siem Reap–Angkor .
The cheapest month to fly from Hanoi to Siem Reap–Angkor is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Hanoi Airport to Siem Reap–Angkor Airport on Friday, 14 August 2026.
Yes – the average flight time is 1 hour and 42 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Siem Reap–Angkor but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Siem Reap is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, VietJet Air offers the cheapest flight tickets to Siem Reap–Angkor .

Travelling from Hanoi Airport (HAN) to Siem Reap–Angkor Airport (SAI): what you need to know

  • The average length of a direct flight from Hanoi Airport to Siem Reap–Angkor Airport is 1 hour 40 minutes.

  • Siem Reap's timezone is UTC+7, which is the same as Hanoi.

  • Every week, there are 15 Hanoi Airport to Siem Reap–Angkor Airport flights. If you want to jet off as early as possible, pick the 15:15 Vietnam Airlines flight. If you'd rather make the most of your time before flying, the latest flight is at 18:00 with Vietnam Airlines.

  • Arrive at the airport on time so you don't miss your HAN to SAI flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • Be prepared for longer queues during popular months like June. Arriving up to four hours ahead of international flights and two hours for domestic departures will give you ample time for security and boarding.

  • Vietnam Airlines offers direct flights from Hanoi Airport to Siem Reap–Angkor Airport. Book with this popular carrier, then get ready to tick off the sights in Siem Reap — and maybe even more of Cambodia if time allows.

  • The majority of passengers choose to travel with Vietnam Airlines on this route.

  • Among carriers operating HAN to SAI flights, Vietnam Airlines has the best record for on-time arrivals.

  • If you want to explore another city along the way, simply deselect 'Direct flights only' when searching for your ticket from Hanoi Airport to Siem Reap–Angkor Airport. Here are the top stopovers between HAN and SAI:

    • Bangkok Suvarnabhumi Airport

    • Ho Chi Minh City Airport

    • Da Nang Airport

How to find the cheapest flights from Hanoi Airport (HAN) to Siem Reap–Angkor Airport (SAI)

  • The cheapest price we've seen for a one-way Hanoi Airport to Siem Reap–Angkor Airport flight is 64 €. A round-trip fare right now is 135 €. Depending on the availability when you book, these fares may change.

  • Book 11 months before you travel. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from HAN to SAI.

  • Plan your trip for April. That's the cheapest month for flights from Hanoi Airport to Siem Reap–Angkor Airport. If you have flexibility with your dates, use the 'Whole month' tool to find the lowest price across each month.

  • Save time looking for cheap flights from HAN to SAI by setting up a Price Alert. We'll send you an email or notification on the app when fares go down.

  • Secure the right flight for you by using the filters. To see the 'Fastest,' 'Cheapest' or 'Best' flights from Hanoi Airport to Siem Reap–Angkor Airport, use the 'Sort by' function. You can also filter by airline, departure and arrival times, and number of stops.

Handy information about Hanoi Airport (HAN)

  • 72% of flights leaving from Hanoi Airport land at their destination on schedule.

  • To get to Hanoi Airport from central Hanoi, it takes around 40 minutes if you're travelling by car. This depends on traffic though. It's approximately 31 kilometres from the airport to the city centre.

  • The journey on public transport takes roughly 1 hour.

  • Need a convenient hotel near HAN? If you've booked an early flight from Hanoi Airport to Siem Reap–Angkor Airport, these stays will have you moments from check-in:

When to fly to Siem Reap–Angkor Airport (SAI)

  • The quietest month for a flight from Hanoi Airport to Siem Reap–Angkor Airport is June, while December is the busiest. Pick the ideal time to go to Siem Reap based on whether you prefer a more fast-paced or easygoing experience.

  • The warmest month in Siem Reap is March, with the temperature ranging between 22ºC (72ºF) and 38ºC (100ºF). Book your flights from Hanoi Airport to Siem Reap–Angkor Airport in this month if this is the type of weather you enjoy.

  • Look for cheap tickets from HAN to SAI in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 18ºC (64ºF) and 33ºC (91ºF) on average.

Explore more of Cambodia

  • Phnom Penh is just one of the many cities in Cambodia waiting to be explored after you've seen Siem Reap. Around 225 kilometres away to the south-east, its top attractions include Royal Palace, Genocide museum and Documentation Centre of Cambodia.

  • Around 306 kilometres south of Siem Reap, Sihanoukville is another favourite stop in Cambodia. Start your sightseeing at Otres Beach, Independence Beach and Sokha Beach.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.