HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Hanoi

$91+ Cheap flights from Siem Reap, Cambodia (SAI) to Hanoi (HAN)

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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
SAI — HAN
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
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 71 days in advance, depart on a Wednesday or Monday and return on a Saturday

Cheap flight deals from Siem Reap to Hanoi

Cheapest flights from Siem Reap to Hanoi
Explore the most affordable flight options available from Siem Reap to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 2/117:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Sun 2/154:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Deal found 2/2$180
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 2/187:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Sun 2/224:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Deal found 2/2$182
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Sun 2/87:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Sun 2/154:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Deal found 2/2$184
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Sat 2/147:05 pm
SAI
-
HAN
Nonstop1h 45m
VietJet Air
Sun 2/154:20 pm
HAN
-
SAI
Nonstop1h 45m
VietJet Air
Deal found 2/2$187
This Trip.com deal was found by Cheapflights users on 2/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/45:55 pm
SAI
-
HAN
Nonstop1h 40m
Multiple Airlines
Thu 2/54:20 pm
HAN
-
SAI
Nonstop1h 45m
Multiple Airlines
Deal found 2/3$227
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:05 pm
SAI
-
HAN
Nonstop1h 45m
Multiple Airlines
Sun 2/1512:00 pm
HAN
-
SAI
1 stop8h 30m
Multiple Airlines
Deal found 2/3$240
This Vietnam Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 12/108:30 pm
SAI
-
HAN
Nonstop1h 40m
Vietnam Airlines
Thu 12/1712:55 pm
HAN
-
SAI
1 stop3h 15m
Vietnam Airlines
Deal found 2/2$252
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Sun 2/87:05 pm
SAI
-
HAN
Nonstop1h 45m
Multiple Airlines
Sun 2/153:15 pm
HAN
-
SAI
1 stop5h 15m
Multiple Airlines
Deal found 2/2$255
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Thu 2/127:05 pm
SAI
-
HAN
Nonstop1h 45m
Multiple Airlines
Sun 2/153:15 pm
HAN
-
SAI
1 stop5h 15m
Multiple Airlines
Deal found 2/2$259

Find 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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$182
(Kiwi.com)

One-way from

$91
(Mytrip)

Popular in

March

Cheapest in

September

Average price

$186
Provider with most accurate pricing for Siem Reap–Angkor Intl-Hanoi Noibai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Siem Reap–Angkor Intl-Hanoi Noibai flights.
Search Deals
From Siem Reap–Angkor Intl to Hanoi Noibai
Search Deals
One-way flight from Siem Reap–Angkor Intl to Hanoi Noibai
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Siem Reap to Hanoi 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 February 4, 2026.
Use the filters below to find and compare flights from Siem Reap to Hanoi that are best for you.

Fly from

Siem Reap

Fly to

Hanoi

Route

Depart

Return

Price

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Wed 2/18

7:05 pm-8:50 pm

Nonstop1h 45m

Hanoi Noibai

Sun 2/22

4:20 pm-6:05 pm

Nonstop1h 45m

$182

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Sat 2/14

7:05 pm-8:50 pm

Nonstop1h 45m

Hanoi Noibai

Sun 2/15

4:20 pm-6:05 pm

Nonstop1h 45m

$187

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Sat 2/14

7:05 pm-8:50 pm

Nonstop1h 45m

Hanoi Noibai

Sun 2/15

3:15 pm-8:30 pm

1 stop5h 15m

$259

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Wed 2/18

7:05 pm-8:50 pm

Nonstop1h 45m

Hanoi Noibai

Sun 2/22

8:50 pm-11:00 am

1 stop14h 10m

$263

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Sat 2/28

9:55 am-3:05 pm

1 stop5h 10m

Hanoi Noibai

Sat 2/28

6:00 pm-7:40 pm

Nonstop1h 40m

$280

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Sat 2/14

5:05 pm-8:15 pm

1 stop3h 10m

Hanoi Noibai

Sun 2/15

6:55 am-8:30 pm

1 stop13h 35m

$369

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Mon 8/3

9:10 pm-4:30 pm

1 stop19h 20m

Hanoi Noibai

Sun 8/16

6:45 pm-8:10 pm

3 stops25h 25m

$724

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Sat 2/14

2:50 pm-8:55 pm

2 stops6h 05m

Hanoi Noibai

Sun 2/15

3:15 pm-8:40 am

1 stop17h 25m

$751

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Sat 2/28

7:05 pm-8:50 pm

Nonstop1h 45m

$91

Siem ReapHanoi

SAI - HAN

SAIHAN

Siem Reap–Angkor Intl

Thu 2/19

7:05 pm-8:50 pm

Nonstop1h 45m

$92

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Showing 1-10 of 17 results
1
2
  • Most accurate provider: When it comes to deals on Siem Reap-Hanoi flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Siem Reap-Hanoi flight deals on Cheapflights vs. FlightHub >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 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 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

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 January 30, 2026.

To ensure you get the cheapest price possible for a flight from Siem Reap to Hanoi, you should look to book at least 68 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 $174). 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 February 4, 2026.

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 56% on airfare.

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 February 4, 2026.
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.
VietJet Air
5.5
Fair
160 reviews

Comfort

5.3

Boarding

6.0

Food

4.7

Entertainment

4.0

Overall

5.5

Crew

6.6

Reviews

1 / 6
2.0
Mediocre

Anonymous,Dec 2025

DAD - SGN

Miserable and rude staff. Horrible leg space . It was a night mare . I will never try again
VietJet Air
5.5
Fair
160 reviews
VietJet Air
5.5
Fair
160 reviews

Comfort

5.3

Boarding

6.0

Food

4.7

Entertainment

4.0

Overall

5.5

Crew

6.6

Reviews

1 / 6
2.0
Mediocre

Anonymous,Dec 2025

DAD - SGN

Miserable and rude staff. Horrible leg space . It was a night mare . I will never try again

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.

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

    To fly from Siem Reap to Hanoi, you need to book a flight from Siem Reap–Angkor Intl (SAI) to Noibai (HAN). Nonstop flights to Hanoi Noibai from Siem Reap–Angkor Intl take 23h 15m on average. When it comes time to book airfare, you have a few options: there are 5 outbound flights from Siem Reap–Angkor Intl to Noibai offered by 1 airline.

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

    Within the past month, 6 users have taken a look at flights from Siem Reap–Angkor Intl to Hanoi Noibai.

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

    For as low as $182, VietJet Air can have you in Hanoi from Siem Reap in 1h 45m. The distance between Siem Reap and Hanoi is about 552 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Cheapflights users have booked flights from Siem Reap to Hanoi round-trip from $122. VietJet Air is priced at 26% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with VietJet Air, which is currently one of the cheapest options available, starting at $68. Cambodia Angkor Air flights start at $100 while deals on Vietnam Airlines start at $115 one-way.

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

    The top 3 most reliable airlines when flying from Siem Reap to Hanoi are VietJet Air (72%), Air France (67%) and Vietnam Airlines (67%).

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

    On average you can expect to pay $178 for a flight from Siem Reap to Hanoi. The cheapest flight overall is $71 while the most popular route, (Siem Reap–Angkor Intl - Hanoi Noibai) is currently priced at $2,612.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Siem Reap to Hanoi 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 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 $174). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Siem Reap to Hanoi

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

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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
VietJet AirCheapest$122Average$166FlexibilityNo cancel feeOn-timeN/A

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