HAN - SAI

Find Cheap Flights from Hanoi to Siem Reap – Compare and Save

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Everything you should know

Direct flights
Every day
You can fly direct with VietJet Air and Vietnam Airlines. Average duration is 1h 42m
Direct flights
Direct flights
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Direct flights
Direct flights
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Avoid delays
Most punctual • 74% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
When to travel
Cheapest • 19% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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We hope you love your trip to Siem Reap!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Hanoi to Siem Reap (HAN-SAI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Hanoi to Siem Reap that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Hanoi to Siem Reap

Multiple Airlines Logo
HAN
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SAI
552 mimulti-stop
Multiple Airlines Logo
SAI
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HAN
552 mimulti-stop
Multiple Airlines
Booking Insights

KAYAK’s insights & trends for Hanoi to Siem Reap flights

Get data-powered insights and trends into flights from Hanoi to Siem Reap to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Hanoi to Siem Reap?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Hanoi to Siem Reap, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Hanoi to Siem Reap is June, where tickets cost £118 (return) on average. On the other hand, the most expensive months are May and March, where the average cost of round-trip tickets is £186 and £170 respectively.

How far in advance should I book a flight from Hanoi to Siem Reap?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Hanoi to Siem Reap, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Hanoi to Siem Reap, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Good to know - Cheap tickets from Hanoi to Siem Reap

Low season

September
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.

When to book flights from Hanoi to Siem Reap

Are your dates flexible? Find out the best times to travel from Hanoi to Siem Reap based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Hanoi to Siem Reap

  • Which aircraft models fly most regularly from Hanoi to Siem Reap?

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

  • On which days can I fly direct from Hanoi to Siem Reap?

    There are direct flights from Hanoi to Siem Reap on a daily basis.

  • How does KAYAK find such low prices on flights from Hanoi to Siem Reap?

    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 Siem Reap.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Hanoi to Siem Reap?

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

  • What is the Hacker Fare option on flights from Hanoi to Siem Reap?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Siem Reap with an airline and back to Hanoi with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Hanoi to Siem Reap?

    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 Siem Reap from Hanoi up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Hanoi to Siem Reap

  • Looking for a cheap flight from Siem Reap to Hanoi? 25% of our users found flights on this route for £74 or less one-way.

Prefer to fly direct from Hanoi to Siem Reap?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Hanoi Noibai to Siem Reap–Angkor Intl.
Find which airlines fly direct from Hanoi Noibai Airport to Siem Reap–Angkor Intl Airport, which days they fly and book direct flights.

Direct departures

Hanoi Noibai to Siem Reap–Angkor Intl

Monday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Tuesday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Wednesday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Thursday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Friday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Saturday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Sunday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

See more direct flights

Direct returns

Siem Reap–Angkor Intl to Hanoi Noibai

Monday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Tuesday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Wednesday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Thursday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Friday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Saturday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Sunday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

See more direct flights

Reviews of the top airline flying from Hanoi to Siem Reap

 
See real verified KAYAK customer reviews for airlines flying from Hanoi to Siem Reap. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Hanoi to Siem Reap? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
5.6
VietJet AirOverall score based on 173 reviews
6.6Crew
6.0Boarding
4.0Entertainment
5.3Comfort
4.7Food
Airline reviews

Flying from Koh Samui to Ha Noi with a layover in Bangkok. Vietjet cancelled flight. When I went to the counter they told me to call from r information. I asked for the number and they said they couldn’t give it to me. Be a little taken back I asked him to repeat that while I was recording on my iPhone. He told me that was unacceptable and called the airport police. I deleted the video but had to deal with a big hassle. Then booked with a different airline. Vietjet wouldn’t refund the ticket. Luckily Chase Sapphire didn’t have a problem with refunding me. Vietjet blows!

2.0 MediocreNic, May 2026
HAN - SGN
Read more VietJet Air reviews

Flying from Koh Samui to Ha Noi with a layover in Bangkok. Vietjet cancelled flight. When I went to the counter they told me to call from r information. I asked for the number and they said they couldn’t give it to me. Be a little taken back I asked him to repeat that while I was recording on my iPhone. He told me that was unacceptable and called the airport police. I deleted the video but had to deal with a big hassle. Then booked with a different airline. Vietjet wouldn’t refund the ticket. Luckily Chase Sapphire didn’t have a problem with refunding me. Vietjet blows!

Terrible customer service. My last choice to fly now if there is no other options.

First time flying with VietJet Air is so so. Check-in process for domestic is okay and easy but during our flight back to Manila, the ground staff at Tan Son Nhat International Airport weighed our hand luggage before boarding when in fact, it should be weighed during the check-in process. They are very strict in terms of the 7kg hand carry it’s either you’ll pay extra, or leave things behind.

Late departure, late arrival, and personal items on laps during takeoff and landing. Departure gate opened on time, but no direction as to whether to board at front or rear of plane based on seat number. Fashionable staff with sunglasses inside the plane and cockpit remained for ten minutes after the boarding complete announcement. For a scheduled 80 minute flight, adjusted to 65 minute as noted on takeoff; the total time on the plane with delays was r more than two hours. No confidence had there been an emergency that anyone would have been able or aware of what to do.

Our flight was delayed for about 3hours however the ground crew made it sure that we will not miss our connecting flight from Hanoi to incheon.

Seat pitch is narrow moreover the agent assigned seat in front of emergency exit window which is not reclined. A terrible 4hr 40min flight from HAN to DPS

1-Airlines did not send any info to inform the clients about changing fight number. 2-Delayed too long on runay without any explanation

Not punctual in departure and seats are very tight and narrow. Crew should handle noisy families during flight.

Paid for seats near the window but given seats right at the back, near the toilets. This location was so noisy with the blasts from the aircraft engines blowing beside. Not a nice one 😞.

In experience we didn't even get water unless it was paid for. Even Bamboo Airlines provided free water. The flight was cold with no blanket being provided. The flight attendants were not responsive in keeping the passengers under control. I complained about fellow passengers playing loud music several times before one of the flight attendants to action. I will not recommend flying with Vietjet unless things improve.

Everything you need to know for your flight from Hanoi to Siem Reap

Information on your arrival and departure airports