HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Siem Reap

$73+ Cheap flights from Hanoi (HAN) to Siem Reap, Cambodia (SAI)

HAN — SAI
Nov 24 — Dec 11
Tue 11/24
Tue 12/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Hanoi to Siem Reap 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 Hanoi Noibai to Siem Reap–Angkor Intl are usually found in June or July, booked 2 days in advance, depart on a Thursday or Monday and return on a Saturday

Cheap flight deals from Hanoi to Siem Reap

Cheapest flights from Hanoi to Siem Reap

Sat 12/124:20 pm -
Nonstop1h 45m
Sat 12/197:05 pm -
Nonstop1h 45m
Deal found 10/21$156
Thu 11/194:20 pm -
Nonstop1h 45m
Thu 11/267:05 pm -
Nonstop1h 45m
Deal found 10/20$171
Mon 11/234:20 pm -
Nonstop1h 45m
Mon 11/307:05 pm -
Nonstop1h 45m
Deal found 10/24$172
Sat 12/124:20 pm -
Nonstop1h 45m
Sat 12/195:05 pm -
1 stop3h 25m
Deal found 10/21$205
Fri 12/44:20 pm -
Nonstop1h 45m
Tue 12/87:05 pm -
Nonstop1h 45m
Deal found 10/21$214
Thu 11/264:20 pm -
Nonstop1h 45m
Sun 11/297:05 pm -
Nonstop1h 45m
Deal found 10/24$224
Sat 12/53:15 pm -
Nonstop1h 40m
Tue 12/88:30 pm -
Nonstop1h 45m
Deal found 10/21$227
Thu 11/266:00 pm -
Nonstop1h 40m
Sun 11/295:55 pm -
Nonstop1h 45m
Deal found 10/23$229
Thu 11/263:15 pm -
Nonstop1h 40m
Thu 11/268:30 pm -
Nonstop1h 45m
Deal found 10/20$233
Tue 12/153:15 pm -
Nonstop1h 40m
Thu 12/245:05 pm -
1 stop3h 25m
Deal found 10/21$235

Find flight deals from Hanoi to Siem Reap

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$156
(Booking.com)

One-way from

$73
(Booking.com)

Popular in

May

Cheapest in

June

Average price

$210
Provider with most accurate pricing for Hanoi Noibai-Siem Reap–Angkor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Hanoi Noibai-Siem Reap–Angkor Intl flights.
Search Deals
From Hanoi Noibai to Siem Reap–Angkor Intl
Search Deals
One-way flight from Hanoi Noibai to Siem Reap–Angkor Intl
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Hanoi to Siem Reap that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Wed 11/4

4:20 pm-6:05 pm

Nonstop1h 45m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$84

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Fri 12/4

4:20 pm-6:05 pm

Nonstop1h 45m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$108
Quickest round-trip

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Mon 2/22

3:15 pm-4:55 pm

Nonstop1h 40m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$114

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Thu 2/18

3:15 pm-4:55 pm

Nonstop1h 40m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$114

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Wed 4/14

4:20 pm-6:05 pm

Nonstop1h 45m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$139

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Sun 1/24

4:20 pm-6:05 pm

Nonstop1h 45m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$158

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Sun 12/27

2:00 pm-8:30 pm

1 stop6h 30m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$175

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Wed 11/4

5:00 am-8:30 pm

1 stop15h 30m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$178

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Fri 11/27

10:00 am-8:30 pm

1 stop10h 30m

Siem Reap–Angkor Intl

Wed 12/31

12:00 am-1:00 am

Nonstop0h 00m

$180

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Fri 1/29

4:20 pm-6:05 pm

Nonstop1h 45m

Siem Reap–Angkor Intl

Sun 1/31

7:05 pm-8:50 pm

Nonstop1h 45m

$193

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/24

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Hanoi to Siem Reap

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.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Hanoi-Siem Reap flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Hanoi-Siem Reap flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

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?

To ensure you get the cheapest price possible for a flight from Hanoi to Siem Reap, you should look to book at least 1 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, June is the cheapest month in which you can book a flight from Hanoi to Siem Reap (average of $159). Flying from Hanoi to Siem Reap in May is currently the most expensive (average of $250). 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?

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.

How much does it cost to fly round-trip from Hanoi to Siem Reap?

Airfare is below average for this route at the moment.

Hanoi to Siem Reap flights typically cost between $192 and $236 in December.
The cheapest round-trip price found within the last 5 days was $156 on VietJet Air (Dec 12-Dec 19).

Reviews of airlines servicing Siem Reap

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.
Vietnam Airlines
7.7
Good
293 reviews

Entertainment

6.3

Overall

7.7

Crew

8.3

Boarding

7.8

Food

6.9

Comfort

7.7

Reviews

1 / 17
6.0
Good

Laura,Sep 2026

DAD - SGN

Flight was delayed - no communication until we boarded nearly an hour late
Vietnam Airlines
7.7
Good
293 reviews
Vietnam Airlines
7.7
Good
293 reviews

Entertainment

6.3

Overall

7.7

Crew

8.3

Boarding

7.8

Food

6.9

Comfort

7.7

Reviews

1 / 17
6.0
Good

Laura,Sep 2026

DAD - SGN

Flight was delayed - no communication until we boarded nearly an hour late
VietJet Air
5.6
Fair
176 reviews
Vietnam Airlines
7.7
Good
293 reviews

Entertainment

6.3

Overall

7.7

Crew

8.3

Boarding

7.8

Food

6.9

Comfort

7.7

Reviews

1 / 17
6.0
Good

Laura,Sep 2026

DAD - SGN

Flight was delayed - no communication until we boarded nearly an hour late

Related info for your journey

  • What airports do I use to fly from Hanoi to Siem Reap?

    If you book a flight from Hanoi to Siem Reap, you will be flying from Noibai to Siem Reap–Angkor Intl. Flights to Siem Reap–Angkor Intl (SAI) from Hanoi Noibai (HAN) take 22h 05m for a nonstop flight. There is 1 flight from Noibai to Siem Reap per day from 2 airlines.

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

    Flights from Hanoi Noibai to Siem Reap–Angkor Intl have been viewed 2 times in the past calendar month.

  • How long is the flight from Hanoi to Siem Reap?

    There are many flights that can get you from Hanoi to Siem Reap in 1h 45m. Fly via VietJet Air or Vietnam Airlines to get the fastest option. The distance from Hanoi to Siem Reap is about 552 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Hanoi to Siem Reap round-trip?

    Flying on VietJet Air is currently your cheapest option to Siem Reap, with prices starting at $144. Another option worth looking into is Vietnam Airlines, starting at $196 round trip. VietJet Air is priced at 29% lower than the current average price of a flight leaving 3 months from now.

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

    The top 3 most reliable airlines when flying from Hanoi to Siem Reap are Cambodia Angkor Air (71%), Vietnam Airlines (71%) and ANA (71%).

  • What are the cheapest flights from Hanoi to Siem Reap?

    Looking at all options, your cheapest flight can be booked for $72. While the most popular route (Hanoi Noibai - Siem Reap–Angkor Intl) can be booked for $4,170 on average, our data indicates $163 when flying from Hanoi to Siem Reap.

  • 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 vacation 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.

  • What is the cheapest month to book a flight from Hanoi to Siem Reap?

    Currently, June is the cheapest month in which you can book a flight from Hanoi to Siem Reap (average of $159). Flying from Hanoi to Siem Reap in May is currently the most expensive (average of $250). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Hanoi to Siem Reap

Da Nang to Siem Reap flights
Ho Chi Minh City to Siem Reap flights

Top 2 airlines flying from Hanoi to Siem Reap

AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapest$144Average$189FlexibilityNo cancel feeOn-timeN/A
Vietnam AirlinesCheapest$196Average$238FlexibilityNo cancel feeOn-time81%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights