Cheap flights from Siem Reap, Cambodia (SAI) to Hanoi (HAN)
SAI — HAN
Nov 26 — Dec 31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Siem Reap to Hanoi with Cheapflights
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 Siem Reap–Angkor Intl to Hanoi Noibai are usually found in September or July, booked 21 days in advance, depart on a Monday or Saturday and return on a Saturday
Cheap flight deals from Siem Reap to Hanoi
Discover tips and strategies to find the most affordable flight options for your journey from Siem Reap (SAI) to Hanoi (HAN). 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 27, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Popular in | January |
Cheapest in | September |
Average price | $155 |
Compare providers for flights from Siem Reap to Hanoi
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 Siem Reap to Hanoi in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Siem Reap-Hanoi flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Siem Reap-Hanoi flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Siem Reap-Hanoi flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Siem Reap-Hanoi 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 Siem Reap-Hanoi 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 Siem Reap to Hanoi
Have a flexible travel schedule? Discover the best time to fly to Hanoi from Siem Reap 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 Siem Reap to Hanoi
Prices
Airlines
Delays
How far ahead should I book a flight from Siem Reap to Hanoi?
Use this chart to determine the optimal time to book a round-trip flight from Siem Reap to Hanoi. Price data was last updated on October 24, 2025.
To ensure you get the cheapest price possible for a flight from Siem Reap to Hanoi, you should look to book at least 20 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 Siem Reap to Hanoi?
Currently, September is the cheapest month in which you can book a flight from Siem Reap to Hanoi (average of $119). Flying from Siem Reap to Hanoi in February is currently the most expensive (average of $178). 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 SAI to HAN?
Find hourly flight availability from Siem Reap to Hanoi. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.
One of the essential ways to save on airfare from Siem Reap to Hanoi is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 55% on airfare.
How often are flights from Siem Reap to Hanoi delayed?
About 25% of weekly flights between Siem Reap and Hanoi have experienced delays in the past year, with the average delay time being 113 minutes.
What is the most punctual flight time for Siem Reap to Hanoi flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Siem Reap to Hanoi flights?
Over the last year, Vietnam Airlines have had the lowest number of delays on this route, with just 18% of flights being delayed.
Reviews of airlines servicing Hanoi
Get insights into the airlines that provide service to Hanoi. 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 Hanoi. Reviews last updated October 27, 2025.
Get a feel of what it's like to fly with VietJet Air from Siem Reap to Hanoi by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
6.7
Comfort
5.3
Entertainment
4.1
Boarding
6.0
Overall
5.6
Food
4.7
Reviews
1 / 5
8.0
Excellentxuan-anh,Aug 2025
SGN - SYD
Crew
6.7
Comfort
5.3
Entertainment
4.1
Boarding
6.0
Overall
5.6
Food
4.7
Reviews
1 / 5
8.0
Excellentxuan-anh,Aug 2025
SGN - SYD
Related info for your journey
Find useful and relevant information for your journey from Siem Reap to Hanoi. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Complete your trip
Complete your trip to Hanoi by adding a car rental and/or hotel reservation to your travel itinerary.
Top airline flying from Siem Reap to Hanoi
Discover the top airline that operate flights from Siem Reap to Hanoi. 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 27, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$121 | Average$169 | FlexibilityNo cancel fee | On-timeN/A |