How often are flights from Hanoi to Siem Reap delayed?

About 26% of weekly flights between Hanoi and Siem Reap have experienced delays in the past year, with the average delay time being 101 minutes.

What is the most punctual flight time for Hanoi to Siem Reap flights?

Historically, flights departing in the evening 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?

Tuesday 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 Hanoi to Siem Reap flights?

Over the past year, Vietnam Airlines have had the lowest number of delays on this route, with just 23% of flights being delayed.

How popular is this Hanoi to Siem Reap flight route?

Flights from Hanoi Noibai to Siem Reap–Angkor Intl have been viewed 1 times in the past calendar month.

How long is the flight from Hanoi to Siem Reap?

Departing from Hanoi to Siem Reap will take you 1h 45m. There are 552 mi between Hanoi and Siem Reap. Both multi-stop and direct flights can be found to your destination and back.

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

Our cheapest airline available from Hanoi to Siem Reap is VietJet Air. Our recent data shows that you can find tickets from as low as £115 on this airline. Users have found that VietJet Air is 24% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Siem Reap ranges from 0.0 - 260.0 inches per month. September is typically the wettest month, when rainfall can reach 260.0 mm. January is typically the driest time to visit Siem Reap when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Siem Reap, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 24.0 C).

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

Before booking your flight to Siem Reap from Hanoi, check out the most reliable airlines to get you to your destination on time: Cambodia Angkor Air (71%), Vietnam Airlines (71%), ANA( 71%).

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 holiday 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.

£55+ Cheap Flights from Hanoi to Siem Reap, Cambodia

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 Monday or Tuesday and return on a Monday

Cheap flight deals from Hanoi to Siem Reap

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 25 October 2026.

Sat 5/1216:20 -

Nonstop1h 45m

Sat 12/1219:05 -

Nonstop1h 45m

Deal found 21/10£144

Thu 26/1116:20 -

Nonstop1h 45m

Sun 29/1119:05 -

Nonstop1h 45m

Deal found 24/10£167

Sat 5/1215:15 -

Nonstop1h 40m

Tue 8/1220:30 -

Nonstop1h 45m

Deal found 21/10£170

Thu 26/1118:00 -

Nonstop1h 40m

Sun 29/1117:55 -

Nonstop1h 45m

Deal found 23/10£171

Thu 26/1115:15 -

Nonstop1h 40m

Thu 26/1120:30 -

Nonstop1h 45m

Deal found 20/10£174

Tue 15/1215:15 -

Nonstop1h 40m

Thu 24/1217:05 -

1 stop3h 25m

Deal found 21/10£176

Sun 25/1015:15 -

Nonstop1h 40m

Wed 4/1117:05 -

1 stop3h 25m

Deal found 21/10£182

Wed 16/1212:40 -

1 stop3h 30m

Thu 24/1217:05 -

1 stop3h 25m

Deal found 21/10£183

Wed 16/1212:40 -

1 stop3h 30m

Fri 18/1217:05 -

1 stop3h 25m

Deal found 21/10£185

Find flight deals from Hanoi to Siem Reap

Round-trip from	£140
One-way from	£55
Popular in	May
Cheapest in	June
Average price	£157

VietJet Air
21/4-23/4
Nonstop
3h 30m total
Hanoi to Siem Reap

Search Deals

VietJet Air
12/12-31/12
Nonstop
1h 45m total
Hanoi to Siem Reap

Search Deals

High demand for flights, 2% potential price rise

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£3 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Mon 22/2

15:15-16:55

Nonstop1h 40m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£85

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Fri 30/10

12:40-16:10

1 stop3h 30m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£87

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Thu 18/3

12:40-16:10

1 stop3h 30m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£105

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Sun 24/1

16:20-18:05

Nonstop1h 45m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£118

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Sun 27/12

14:00-20:30

1 stop6h 30m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£131

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Wed 21/4

16:20-18:05

Nonstop1h 45m

Siem Reap–Angkor Intl

Fri 23/4

19:05-20:50

Nonstop1h 45m

£140

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Sun 8/11

22:00-20:30

1 stop22h 30m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£152

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Mon 9/11

11:50-20:25

1 stop8h 35m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£154

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Fri 27/11

07:05-20:30

2 stops13h 25m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£173

HanoiSiem Reap

HAN Hanoi Noibai - SAI Siem Reap–Angkor Intl

HANSAI

Hanoi Noibai

Sun 1/11

07:05-20:30

2 stops13h 25m

Siem Reap–Angkor Intl

Wed 31/12

00:00-01:00

Nonstop0h 00m

£173

Flights are sorted by cheapest return flights first.

Deals found on 22/10

Showing 1-10 of 22 resultsSorted by cheapest first

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.

HAN-SAI

Estimated return 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

Delays

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 £119). Flying from Hanoi to Siem Reap in May is currently the most expensive (average of £187). 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 for a return flight from Hanoi to Siem Reap?

Airfare is typical for this route at the moment.

Hanoi to Siem Reap flights typically cost between £134 and £175 in April.
The cheapest return price found within the last 5 days was £140 on VietJet Air (21 Apr–23 Apr).

Reviews of airlines servicing Siem Reap

Read reviews from past customers who have flown with VietJet Air from Hanoi to Siem Reap. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

VietJet Air

5.6

Fair

176 reviews

Check prices

Reviews

1 / 7

10.0

Excellent

xuan-anh,Apr 2026

SGN - SYD

Check in was too long (58 mn). Online check in wasn’t available on this flight (VJ85).

VietJet Air

5.6

Fair

176 reviews

VietJet Air

5.6

Fair

176 reviews

Check prices

Reviews

1 / 7

10.0

Excellent

xuan-anh,Apr 2026

SGN - SYD

Check in was too long (58 mn). Online check in wasn’t available on this flight (VJ85).

Related info for your journey

How popular is this Hanoi to Siem Reap flight route?
Flights from Hanoi Noibai to Siem Reap–Angkor Intl have been viewed 1 times in the past calendar month.
How long is the flight from Hanoi to Siem Reap?
Departing from Hanoi to Siem Reap will take you 1h 45m. There are 552 mi between Hanoi and Siem Reap. Both multi-stop and direct flights can be found to your destination and back.
What is the cheapest airline to fly from Hanoi to Siem Reap round-trip?
Our cheapest airline available from Hanoi to Siem Reap is VietJet Air. Our recent data shows that you can find tickets from as low as £115 on this airline. Users have found that VietJet Air is 24% cheaper than the other options available to this destination.
What are the most reliable airlines from Hanoi to Siem Reap?
Before booking your flight to Siem Reap from Hanoi, check out the most reliable airlines to get you to your destination on time: Cambodia Angkor Air (71%), Vietnam Airlines (71%), ANA( 71%).
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 holiday 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 £119). Flying from Hanoi to Siem Reap in May is currently the most expensive (average of £187). 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

Complete your trip

Flights by cabin class

Other flight options

Other flights from Hanoi

Popular flights

Alternative routes for Hanoi to Siem Reap

Da Nang to Siem Reap flights

Ho Chi Minh City to Siem Reap flights

Top airline flying from Hanoi to Siem Reap

Airline	Cheapest	Average	Flexibility	On-time
VietJet Air	Cheapest£115	Average£137	FlexibilityNo cancel fee	On-timeN/A	Search VietJet Air flights

Fly with Cheapflights

How does Cheapflights help users find flights from Hanoi to Siem Reap?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Hanoi to Siem Reap. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Hanoi to Siem Reap?

Millions of users choose and trust Cheapflights to book the best flight deals from Hanoi to Siem Reap for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Hanoi to Siem Reap with no change fees?

Certainly. Search results for flights to Siem Reap from Hanoi shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Hanoi to Siem Reap become cheaper?

Not ready to book yet? You can track prices for flights from Hanoi to Siem Reap on Cheapflights with our Price Alert feature and get notified when better prices are available.

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.

Cheap flights from Hanoi to Siem Reap, Cambodia from £55

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Hanoi to Siem Reap

Cheapest flights from Hanoi to Siem ReapExplore 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 25 October 2026.

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 25 October 2026.

Best flights from Hanoi to Siem ReapDiscover carefully curated flight deals from Hanoi to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Discover carefully curated flight deals from Hanoi to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Direct flights from Hanoi to Siem ReapExplore direct flight options from Hanoi to Siem Reap based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.

Explore direct flight options from Hanoi to Siem Reap based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.

Last-minute flights from Hanoi to Siem ReapDiscover last-minute flight deals from Hanoi to Siem Reap. Data last updated 25 October 2026 and is based on user searches.

Discover last-minute flight deals from Hanoi to Siem Reap. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Hanoi to Siem ReapSearch for one-way flight options from Hanoi to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Search for one-way flight options from Hanoi to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Find flight deals from Hanoi to Siem Reap

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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.

Cheapflights Insights

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?

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 for a return flight from Hanoi to Siem Reap?

Airfare is typical for this route at the moment.

Hanoi to Siem Reap flights typically cost between £134 and £175 in April.The cheapest return price found within the last 5 days was £140 on VietJet Air (21 Apr–23 Apr).

How often are flights from Hanoi to Siem Reap delayed?

About 26% of weekly flights between Hanoi and Siem Reap have experienced delays in the past year, with the average delay time being 101 minutes.

What is the most punctual flight time for Hanoi to Siem Reap flights?

Historically, flights departing in the evening 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?

Tuesday 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 Hanoi to Siem Reap flights?

Over the past year, Vietnam Airlines have had the lowest number of delays on this route, with just 23% of flights being delayed.

Reviews of airlines servicing Siem Reap

Read reviews from past customers who have flown with VietJet Air from Hanoi to Siem Reap. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How popular is this Hanoi to Siem Reap flight route?

How long is the flight from Hanoi to Siem Reap?

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

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

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

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

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

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

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 Hanoi to Siem Reap

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Siem Reap by adding a car hire and/or hotel booking to your travel itinerary.

Search flights from Hanoi to Siem Reap by cabin class

Find flights from Hanoi to Siem Reap, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hanoi and Siem Reap flights

Browse other Hanoi and Siem Reap flight options. Last updated on 25 October 2026.

Other flights from Hanoi

Browse through other flights departing from Hanoi. Flights are based on user searches made on Cheapflights and were last updated on 25 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Top airline flying from Hanoi to Siem Reap

Fly with Cheapflights

How does Cheapflights help users find flights from Hanoi to Siem Reap?

Why should you use Cheapflights to find cheap flight tickets from Hanoi to Siem Reap?

Can Cheapflights find flights from Hanoi to Siem Reap with no change fees?

Can Cheapflights notify me if prices for flights from Hanoi to Siem Reap become cheaper?

100% Free

Book with Flexibility

Travel Smart

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 25 October 2026.

Best flights from Hanoi to Siem Reap
Discover carefully curated flight deals from Hanoi to Siem Reap that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 25 October 2026.

Direct flights from Hanoi to Siem Reap
Explore direct flight options from Hanoi to Siem Reap based on user searches, and compare prices and availability for your desired travel dates. Data last updated 25 October 2026.

Last-minute flights from Hanoi to Siem Reap
Discover last-minute flight deals from Hanoi to Siem Reap. Data last updated 25 October 2026 and is based on user searches.

One-way flights from Hanoi to Siem Reap
Search for one-way flight options from Hanoi to Siem Reap. Find affordable one-way fares based on user searches. Data last updated 25 October 2026.

Hanoi to Siem Reap flights typically cost between £134 and £175 in April.
The cheapest return price found within the last 5 days was £140 on VietJet Air (21 Apr–23 Apr).