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Cheap flights from Hanoi to Siem Reap, Cambodia

HAN — SAI
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Hanoi Noibai to Siem Reap–Angkor Intl are usually found in June or July, booked 29 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Hanoi to Siem Reap

Discover tips and strategies to find the most affordable flight options for your journey from Hanoi (HAN) to Siem Reap (SAI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 September 2025.

Popular in

April

Cheapest in

June

Average price

£140
Highest demand for flights based on searches. 5% potential increase in price (£6 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Best time to book a flight from Hanoi to Siem Reap

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a return flight from Hanoi to Siem Reap. Price data was last updated on 29 August 2025.

To ensure you get the cheapest price possible for a flight from Hanoi to Siem Reap, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Find hourly flight availability from Hanoi to Siem Reap. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 September 2025.

When flying from Hanoi to Siem Reap, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Siem Reap

Get insights into the airlines that provide service to Siem Reap. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Siem Reap. Reviews last updated 12 September 2025.
Read reviews from past customers who have flown with VietJet Air from Hanoi to Siem Reap. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
VietJet Air
5.6
Fair
147 reviews
Check prices

Entertainment

4.0

Food

4.7

Overall

5.6

Comfort

5.3

Crew

6.6

Boarding

6.0

Reviews

1 / 5
8.0
Excellent

xuan-anh,Aug 2025

SGN - SYD

The baggage check-in need lots of improvements, 80 minutes in the queue was ways too long! Staffs were good. Crew was very good, helpful and polite, excellent pilot. Food was regrettable! Entertainment was not an option, so customers should be warned to bring their own, which must be fully charged because it's not allowed to be charged during the flight.
VietJet Air
5.6
Fair
147 reviews
VietJet Air
5.6
Fair
147 reviews
Check prices

Entertainment

4.0

Food

4.7

Overall

5.6

Comfort

5.3

Crew

6.6

Boarding

6.0

Reviews

1 / 5
8.0
Excellent

xuan-anh,Aug 2025

SGN - SYD

The baggage check-in need lots of improvements, 80 minutes in the queue was ways too long! Staffs were good. Crew was very good, helpful and polite, excellent pilot. Food was regrettable! Entertainment was not an option, so customers should be warned to bring their own, which must be fully charged because it's not allowed to be charged during the flight.

Related info for your journey

Find useful and relevant information for your journey from Hanoi to Siem Reap. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Hanoi to Siem Reap flight route?

    Flights from Hanoi Noibai to Siem Reap–Angkor Intl have been viewed 13 times in the past calendar month.

  • What is the cheapest airline to fly from Hanoi to Siem Reap round-trip?

    Our cheapest airline available from Hanoi to Siem Reap is VietJet Air. Our recent data shows that you can find tickets from as low as £95 on this airline. Users have found that VietJet Air is 35% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Hanoi to Siem Reap?

    Before booking your flight to Siem Reap from Hanoi, check out the most reliable airlines to get you to your destination on time: Air France (0%), Vietnam Airlines (0%), ANA( 0%).

  • Can I find deals for flights from Hanoi to Siem Reap that include hotel bookings?

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

  • How can I find direct flights from Hanoi to Siem Reap?

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

  • Can I find deals for business class flights from Hanoi to Siem Reap?

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

See more FAQs

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Top airline flying from Hanoi to Siem Reap

Discover the top airline that operate flights from Hanoi to Siem Reap. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapest£95Average£129FlexibilityNo cancel feeOn-timeN/A
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Hanoi to Siem Reap?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Hanoi to Siem Reap. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Hanoi to Siem Reap?

Millions of users choose and trust Cheapflights to book the best flight deals from Hanoi to Siem Reap for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Hanoi to Siem Reap with no change fees?

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

Can Cheapflights notify me if prices for flights from Hanoi to Siem Reap become cheaper?

Not ready to book yet? You can track prices for flights from Hanoi to Siem Reap on Cheapflights with our Price Alert feature and get notified when better prices are available.

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