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Siem Reap

$63+ Cheap flights from Hanoi (HAN) to Siem Reap, Cambodia (SAI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
HAN — SAI
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Find cheap flights from Hanoi to Siem Reap with Cheapflights

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Cheapflights Tip: The best prices from Hanoi Noibai to Siem Reap–Angkor Intl are usually found in June or September, booked 65 days in advance, depart on a Saturday or Monday and return on a Wednesday

Cheap flight deals from Hanoi to Siem Reap

Cheapest flights from Hanoi to Siem Reap
Explore the most affordable flight options available from Hanoi to Siem Reap. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 12, 2026.

This Booking.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/104:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Sun 7/127:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Deal found 3/9$128
This Booking.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/254:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Thu 5/287:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Deal found 3/7$129
This Booking.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/304:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Sun 4/57:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Deal found 3/10$146
This Booking.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/114:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Wed 3/187:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Deal found 3/10$147
This Booking.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/134:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Sun 3/157:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Deal found 3/9$148
This Booking.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/74:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Fri 10/97:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Deal found 3/7$159
This Booking.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/224:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Fri 12/257:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Deal found 3/10$160
This Booking.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Thu 4/237:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Deal found 3/10$177
This AirAsia deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirAsia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:05 am
HAN
-
SAI
1 stop5h 25m
Thai AirAsia
Sun 7/123:15 pm
SAI
-
HAN
1 stop5h 05m
Thai AirAsia
Deal found 3/9$185
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/251:10 pm
HAN
-
SAI
1 stop3h 15m
Multiple Airlines
Thu 5/287:05 pm
SAI
-
HAN
Nonstop1h 45m
Multiple Airlines
Deal found 3/7$187
This VietJet Air deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure VietJet Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/24:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Sun 4/57:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Deal found 3/7$191
This Vietnam Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vietnam Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:30 pm
HAN
-
SAI
Nonstop1h 40m
Vietnam Airlines
Mon 10/126:05 pm
SAI
-
HAN
Nonstop1h 45m
Vietnam Airlines
Deal found 3/11$192

Find 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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$128
(Booking.com)

One-way from

$63
(Kiwi.com)

Popular in

April

Cheapest in

June

Average price

$214
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
Highest demand for flights based on searches. 13% potential increase in price ($30 potential increase over avg. RT price).
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 March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Hanoi to Siem Reap that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 12, 2026.
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 - SAI

HANSAI

Hanoi Noibai

Tue 8/18

9:05 am-2:30 pm

1 stop5h 25m

Siem Reap–Angkor Intl

Sat 8/22

11:55 am-8:20 pm

1 stop8h 25m

$185

HanoiSiem Reap

HAN - SAI

HANSAI

Hanoi Noibai

Thu 4/2

4:20 pm-6:05 pm

Nonstop1h 45m

Siem Reap–Angkor Intl

Sun 4/5

7:05 pm-8:50 pm

Nonstop1h 45m

$191

HanoiSiem Reap

HAN - SAI

HANSAI

Hanoi Noibai

Tue 7/21

9:05 am-2:30 pm

1 stop5h 25m

Siem Reap–Angkor Intl

Thu 7/23

3:15 pm-8:20 pm

1 stop5h 05m

$194

HanoiSiem Reap

HAN - SAI

HANSAI

Hanoi Noibai

Tue 8/18

4:20 pm-6:05 pm

Nonstop1h 45m

Siem Reap–Angkor Intl

Sat 8/22

7:05 pm-8:50 pm

Nonstop1h 45m

$198

HanoiSiem Reap

HAN - SAI

HANSAI

Hanoi Noibai

Thu 4/2

1:10 pm-4:25 pm

1 stop3h 15m

Siem Reap–Angkor Intl

Sun 4/5

7:05 pm-8:50 pm

Nonstop1h 45m

$208

HanoiSiem Reap

HAN - SAI

HANSAI

Hanoi Noibai

Fri 4/24

4:20 pm-6:05 pm

Nonstop1h 45m

Siem Reap–Angkor Intl

Mon 4/27

7:05 pm-8:50 pm

Nonstop1h 45m

$224
Quickest round-trip

HanoiSiem Reap

HAN - SAI

HANSAI

Hanoi Noibai

Thu 4/9

3:30 pm-5:10 pm

Nonstop1h 40m

Siem Reap–Angkor Intl

Thu 4/16

6:05 pm-7:50 pm

Nonstop1h 45m

$231

HanoiSiem Reap

HAN - SAI

HANSAI

Hanoi Noibai

Tue 7/14

1:00 pm-6:20 pm

1 stop5h 20m

Siem Reap–Angkor Intl

Thu 7/16

6:05 pm-7:50 pm

Nonstop1h 45m

$239

HanoiSiem Reap

HAN - SAI

HANSAI

Hanoi Noibai

Fri 6/5

1:00 pm-6:20 pm

1 stop5h 20m

Siem Reap–Angkor Intl

Thu 6/11

6:05 pm-7:50 pm

Nonstop1h 45m

$251
Cheapest one-way
Quickest one-way

HanoiSiem Reap

HAN - SAI

HANSAI

Hanoi Noibai

Tue 5/12

4:20 pm-6:05 pm

Nonstop1h 45m

$65

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 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
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 round-trip flight from Hanoi to Siem Reap. Price data was last updated on March 6, 2026.

To ensure you get the cheapest price possible for a flight from Hanoi to Siem Reap, you should look to book at least 64 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 $120). Flying from Hanoi to Siem Reap in December is currently the most expensive (average of $166). 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 March 12, 2026.

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?

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 March 12, 2026.
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
238 reviews

Comfort

7.7

Entertainment

6.3

Food

6.8

Overall

7.7

Boarding

7.7

Crew

8.2

Reviews

1 / 15
8.0
Excellent

Stephen,Nov 2025

SYD - SGN

I really liked it. It’s very good value for money.
Vietnam Airlines
7.7
Good
238 reviews
Vietnam Airlines
7.7
Good
238 reviews

Comfort

7.7

Entertainment

6.3

Food

6.8

Overall

7.7

Boarding

7.7

Crew

8.2

Reviews

1 / 15
8.0
Excellent

Stephen,Nov 2025

SYD - SGN

I really liked it. It’s very good value for money.
VietJet Air
5.6
Fair
163 reviews
Vietnam Airlines
7.7
Good
238 reviews

Comfort

7.7

Entertainment

6.3

Food

6.8

Overall

7.7

Boarding

7.7

Crew

8.2

Reviews

1 / 15
8.0
Excellent

Stephen,Nov 2025

SYD - SGN

I really liked it. It’s very good value for money.

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.

  • 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 are 6 flights 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 Thai AirAsia or VietJet Air 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 $132. Another option worth looking into is Vietnam Airlines, starting at $204 round trip. VietJet Air is priced at 30% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Hanoi to Siem Reap one-way?

    One-way options have recently been found by users for as low as $59 on VietJet Air. Other airlines that offer cheap prices include Vietnam Airlines from $92 and Hahn Air Systems from $110 one-way.

  • 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 Air France (60%), ANA (60%) and Vietnam Airlines (55%).

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

    Looking at all options, your cheapest flight can be booked for $78. While the most popular route (Hanoi Noibai - Siem Reap–Angkor Intl) can be booked for $4,170 on average, our data indicates $148 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, October is the cheapest month in which you can book a flight from Hanoi to Siem Reap (average of $120). Flying from Hanoi to Siem Reap in December is currently the most expensive (average of $166). 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

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Alternative routes for Hanoi to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.
Da Nang to Siem Reap flights
Ho Chi Minh City to Siem Reap flights

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 March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapest$132Average$185FlexibilityNo cancel feeOn-timeN/A
Vietnam AirlinesCheapest$204Average$242FlexibilityNo cancel feeOn-time81%

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