Cheap flights from Hanoi (HAN) to Siem Reap, Cambodia (SAI)
HAN — SAI
Nov 29 — Dec 61
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Hanoi Noibai to Siem Reap–Angkor Intl are usually found in June or September, booked 9 days in advance, depart on a Saturday or Monday 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 October 30, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Popular in | April |
Cheapest in | June |
Average price | $189 |
Compare providers for flights from Hanoi to Siem Reap
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Hanoi to Siem Reap in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Hanoi-Siem Reap flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Hanoi-Siem Reap flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Hanoi-Siem Reap flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Hanoi-Siem Reap flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Hanoi-Siem Reap flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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 round-trip 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
Prices
Airlines
Delays
How far ahead should I book a flight from Hanoi to Siem Reap?
Use this chart to determine the optimal time to book a round-trip flight from Hanoi to Siem Reap. Price data was last updated on October 24, 2025.
To ensure you get the cheapest price possible for a flight from Hanoi to Siem Reap, you should look to book at least 9 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 month to book a flight from Hanoi to Siem Reap?
Currently, October is the cheapest month in which you can book a flight from Hanoi to Siem Reap (average of $125). Flying from Hanoi to Siem Reap in December is currently the most expensive (average of $172). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
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 October 30, 2025.
A simple way to save on the total cost of your ticket is to fly from Hanoi to Siem Reap in the evening. If you’re flexible enough to do this you can expect to save up to 59% on your trip compared to booking a flight in the afternoon.
How often are flights from Hanoi to Siem Reap delayed?
About 33% of weekly flights between Hanoi and Siem Reap have experienced delays in the past year, with the average delay time being 104 minutes.
What is the most punctual flight time for Hanoi to Siem Reap flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Hanoi to Siem Reap flights?
Over the last year, Vietnam Airlines have had the lowest number of delays on this route, with just 27% of flights being delayed.
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 October 30, 2025.
See what other customers who have flown with Vietnam Airlines and VietJet Air from Hanoi to Siem Reap have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.5
Entertainment
6.3
Food
6.8
Overall
7.5
Boarding
7.6
Crew
8.1
Reviews
1 / 14
10.0
ExcellentAllen,Aug 2025
SGN - PER
Comfort
7.5
Entertainment
6.3
Food
6.8
Overall
7.5
Boarding
7.6
Crew
8.1
Reviews
1 / 14
10.0
ExcellentAllen,Aug 2025
SGN - PER
Comfort
7.5
Entertainment
6.3
Food
6.8
Overall
7.5
Boarding
7.6
Crew
8.1
Reviews
1 / 14
10.0
ExcellentAllen,Aug 2025
SGN - PER
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.
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Complete your trip
Complete your trip to Siem Reap by adding a car rental and/or hotel reservation to your travel itinerary.
Top 2 airlines flying from Hanoi to Siem Reap
Discover the top 2 airlines 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 2,558,603 searches. Data last updated October 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$131 | Average$193 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$196 | Average$251 | FlexibilityNo cancel fee | On-time81% |