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 25% of flights being delayed.

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.

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

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

How often are flights from Siem Reap to Hanoi delayed?

About 26% of weekly flights between Siem Reap and Hanoi have experienced delays in the past year, with the average delay time being 105 minutes.

How popular is this Siem Reap to Hanoi flight route?

Within the past month, 4 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 $241, Vietnam Airlines can have you in Hanoi from Siem Reap in 3h 10m. The distance between Siem Reap and Hanoi is about 552 mi.

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

Cheapflights users have booked flights from Siem Reap to Hanoi round-trip from $121. Another airline that can offer you cheap pricing is Vietnam Airlines. VietJet Air is priced at 33% 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 $69. Vietnam Airlines flights start at $115 while deals on Hahn Air Systems start at $127 one-way.

Weekly flight availability from Siem Reap to Hanoi

The most flights from SAI to HAN are scheduled on a Wednesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

In terms of precipitation, rainfall in Hanoi ranges from 0.6 - 11.7 inches per month. August is typically the wettest month, when rainfall can reach 11.7 in. December is typically the driest time to visit Hanoi when rainfall is around 0.6 in.

If weather is an important factor for your trip to Hanoi, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 62.6 F).

What are the cheapest flights from Siem Reap to Hanoi?

On average you can expect to pay $153 for a flight from Siem Reap to Hanoi. The cheapest flight overall is $82 while the most popular route, (Siem Reap–Angkor Intl - Hanoi Noibai) is currently priced at $2,612.

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 (54%), Air France (46%) and Vietnam Airlines (46%).

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.

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 3 outbound flights from Siem Reap–Angkor Intl to Noibai offered by 2 different airlines.

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.

$82+ Cheap Flights from Siem Reap, Cambodia to Hanoi

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Cheapflights Tip: The best prices from Siem Reap–Angkor Intl to Hanoi Noibai are usually found in September or March, booked 28 days in advance, depart on a Saturday or Sunday and return on a Thursday

Cheap flight deals from Siem Reap to Hanoi

Cheapest

Best

Last-minute

One-way

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 September 3, 2026.

Fri 10/97:05 pm -

Nonstop1h 45m

Sun 10/184:20 pm -

Nonstop1h 45m

Deal found 9/1

$154

Sat 10/107:05 pm -

Nonstop1h 45m

Thu 10/154:20 pm -

Nonstop1h 45m

Deal found 9/1

$155

Fri 10/97:05 pm -

Nonstop1h 45m

Sat 10/174:20 pm -

Nonstop1h 45m

Deal found 9/1

$156

Sun 8/307:05 pm -

Nonstop1h 45m

Tue 9/14:20 pm -

Nonstop1h 45m

Deal found 8/29

$159

Thu 12/107:05 pm -

Nonstop1h 45m

Thu 12/174:20 pm -

Nonstop1h 45m

Deal found 9/2

$167

Sat 10/107:05 pm -

Nonstop1h 45m

Mon 10/124:20 pm -

Nonstop1h 45m

Deal found 8/31

$171

Thu 10/157:05 pm -

Nonstop1h 45m

Thu 10/223:30 pm -

Nonstop1h 40m

Deal found 8/31

$181

Fri 10/167:05 pm -

Nonstop1h 45m

Fri 10/234:20 pm -

Nonstop1h 45m

Deal found 9/1

$184

Sat 10/107:05 pm -

Nonstop1h 45m

Thu 10/151:10 pm -

1 stop3h 15m

Deal found 9/1

$190

Sun 9/137:05 pm -

Nonstop1h 45m

Sat 9/193:30 pm -

Nonstop1h 40m

Deal found 9/2

$191

Sun 9/137:05 pm -

Nonstop1h 45m

Sun 9/203:30 pm -

Nonstop1h 40m

Deal found 9/3

$192

Best flights from Siem Reap to Hanoi
Discover carefully curated flight deals from Siem Reap to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.

Thu 12/107:05 pm -

Nonstop1h 45m

Thu 12/1712:55 pm -

1 stop3h 15m

Deal found 9/2

$213

Thu 12/105:05 pm -

1 stop3h 10m

Thu 12/1712:55 pm -

1 stop3h 15m

Deal found 8/30

$241

Sat 10/107:05 pm -

Nonstop1h 45m

Mon 10/121:10 pm -

1 stop3h 15m

Deal found 8/31

$228

Sat 10/105:20 pm -

1 stop3h 15m

Thu 10/151:10 pm -

1 stop3h 15m

Deal found 9/1

$241

Thu 10/155:20 pm -

1 stop3h 15m

Thu 10/221:10 pm -

1 stop3h 15m

Deal found 8/31

$241

Sun 9/137:05 pm -

Nonstop1h 45m

Sat 9/1911:00 am -

1 stop7h 20m

Deal found 9/2

$264

Sat 9/197:10 pm -

2 stops24h 35m

Wed 9/233:30 pm -

Nonstop1h 40m

Deal found 9/3

$271

Fri 9/187:10 pm -

2 stops24h 35m

Tue 9/223:30 pm -

Nonstop1h 40m

Deal found 9/3

$271

Last-minute flights from Siem Reap to Hanoi
Discover last-minute flight deals from Siem Reap to Hanoi. Data last updated September 3, 2026 and is based on user searches.

Tue 9/87:05 pm -

Nonstop1h 45m

Wed 9/164:20 pm -

Nonstop1h 45m

Deal found 9/2

$203

Sun 9/137:05 pm -

Nonstop1h 45m

Sat 9/193:30 pm -

Nonstop1h 40m

Deal found 9/2

$191

Sun 9/137:05 pm -

Nonstop1h 45m

Sun 9/203:30 pm -

Nonstop1h 40m

Deal found 9/3

$192

Fri 10/97:05 pm -

Nonstop1h 45m

Sun 10/184:20 pm -

Nonstop1h 45m

Deal found 9/1

$154

Fri 10/97:05 pm -

Nonstop1h 45m

Sat 10/174:20 pm -

Nonstop1h 45m

Deal found 9/1

$156

Sat 10/107:05 pm -

Nonstop1h 45m

Thu 10/154:20 pm -

Nonstop1h 45m

Deal found 9/1

$155

Sat 10/107:05 pm -

Nonstop1h 45m

Mon 10/124:20 pm -

Nonstop1h 45m

Deal found 8/31

$171

Sat 10/107:05 pm -

Nonstop1h 45m

Thu 10/151:10 pm -

1 stop3h 15m

Deal found 9/1

$190

Thu 10/157:05 pm -

Nonstop1h 45m

Thu 10/223:30 pm -

Nonstop1h 40m

Deal found 8/31

$181

Fri 10/167:05 pm -

Nonstop1h 45m

Fri 10/234:20 pm -

Nonstop1h 45m

Deal found 9/1

$184

One-way flights from Siem Reap to Hanoi
Search for one-way flight options from Siem Reap to Hanoi. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.

Tue 10/137:05 pm -

Nonstop1h 45m

Deal found 8/30

$82

Wed 11/257:05 pm -

Nonstop1h 45m

Deal found 8/31

$83

Wed 10/147:05 pm -

Nonstop1h 45m

Deal found 9/2

$84

Sun 9/207:05 pm -

Nonstop1h 45m

Deal found 8/31

$86

Sat 2/137:05 pm -

Nonstop1h 45m

Deal found 8/29

$94

Mon 11/307:05 pm -

Nonstop1h 45m

Deal found 9/2

$97

Fri 10/27:05 pm -

Nonstop1h 45m

Deal found 8/31

$98

Wed 9/237:05 pm -

Nonstop1h 45m

Deal found 9/2

$99

Wed 12/97:05 pm -

Nonstop1h 45m

Deal found 8/30

$101

Wed 9/307:05 pm -

Nonstop1h 45m

Deal found 8/30

$102

Wed 11/117:05 pm -

Nonstop1h 45m

Deal found 9/2

$103

Find flight deals from Siem Reap to Hanoi

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$154 (Booking.com)
One-way from	$82 (Booking.com)
Popular in	June
Cheapest in	September
Average price	$135

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. 7% potential increase in price ($14 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Thu 12/10

7:05 pm-8:50 pm

Nonstop1h 45m

Hanoi Noibai

Thu 12/17

12:55 pm-4:10 pm

1 stop3h 15m

$213

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sat 10/10

7:05 pm-8:50 pm

Nonstop1h 45m

Hanoi Noibai

Mon 10/12

1:10 pm-4:25 pm

1 stop3h 15m

$228

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Thu 12/10

5:05 pm-8:15 pm

1 stop3h 10m

Hanoi Noibai

Thu 12/17

12:55 pm-4:10 pm

1 stop3h 15m

$241

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sat 10/10

5:20 pm-8:35 pm

1 stop3h 15m

Hanoi Noibai

Thu 10/15

1:10 pm-4:25 pm

1 stop3h 15m

$241

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Thu 10/15

5:20 pm-8:35 pm

1 stop3h 15m

Hanoi Noibai

Thu 10/22

1:10 pm-4:25 pm

1 stop3h 15m

$241

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sun 9/13

7:05 pm-8:50 pm

Nonstop1h 45m

Hanoi Noibai

Sat 9/19

11:00 am-6:20 pm

1 stop7h 20m

$264

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sat 9/19

7:10 pm-7:45 pm

2 stops24h 35m

Hanoi Noibai

Wed 9/23

3:30 pm-5:10 pm

Nonstop1h 40m

$271

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Fri 9/18

7:10 pm-7:45 pm

2 stops24h 35m

Hanoi Noibai

Tue 9/22

3:30 pm-5:10 pm

Nonstop1h 40m

$271

Cheapest one-way

Quickest one-way

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sun 9/13

7:05 pm-8:50 pm

Nonstop1h 45m

$85

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sun 10/18

7:05 pm-8:50 pm

Nonstop1h 45m

$85

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/2

Showing 1-10 of 19 resultsSorted by cheapest first

Compare providers for flights from Siem Reap to Hanoi

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 September.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
CheapOair	Price Accuracy3 stars	Trust Score*3 stars
Kiwi.com	Price Accuracy3 stars	Trust Score*3 stars
Trip.com	Price Accuracy1 star	Trust 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 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.

SAI-HAN

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?

To ensure you get the cheapest price possible for a flight from Siem Reap to Hanoi, you should look to book at least 27 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 $135). Flying from Siem Reap to Hanoi in June is currently the most expensive (average of $222). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Siem Reap to Hanoi as you normally would.

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

Airfare is above average for this route at the moment.

Siem Reap to Hanoi flights typically cost between $122 and $138 in October.
The cheapest round-trip price found within the last 5 days was $154 on VietJet Air (Oct 9-Oct 18).

Reviews of airlines servicing Hanoi

Get a feel of what it's like to fly with Vietnam Airlines and 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.

Vietnam Airlines

7.7

Good

286 reviews

Reviews

1 / 16

2.0

Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.

Vietnam Airlines

7.7

Good

286 reviews

Vietnam Airlines

7.7

Good

286 reviews

Reviews

1 / 16

2.0

Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.

VietJet Air

5.6

Fair

174 reviews

Vietnam Airlines

7.7

Good

286 reviews

Reviews

1 / 16

2.0

Mediocre

Stephen,Apr 2026

SGN - DAD

45 minutes late. Bottle of water and that’s about it.

Related info for your journey

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 3 outbound flights from Siem Reap–Angkor Intl to Noibai offered by 2 different airlines.
How popular is this Siem Reap to Hanoi flight route?
Within the past month, 4 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 $241, Vietnam Airlines can have you in Hanoi from Siem Reap in 3h 10m. The distance between Siem Reap and Hanoi is about 552 mi.
What are the cheapest airlines flying from Siem Reap to Hanoi round-trip?
Cheapflights users have booked flights from Siem Reap to Hanoi round-trip from $121. Another airline that can offer you cheap pricing is Vietnam Airlines. VietJet Air is priced at 33% 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 $69. Vietnam Airlines flights start at $115 while deals on Hahn Air Systems start at $127 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 (54%), Air France (46%) and Vietnam Airlines (46%).
What are the cheapest flights from Siem Reap to Hanoi?
On average you can expect to pay $153 for a flight from Siem Reap to Hanoi. The cheapest flight overall is $82 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 $135). Flying from Siem Reap to Hanoi in June is currently the most expensive (average of $222). 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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Siem Reap to Ho Chi Minh City flights

Top 2 airlines flying from Siem Reap to Hanoi

Airline	Cheapest	Average	Flexibility	On-time
VietJet Air	Cheapest$121	Average$172	FlexibilityNo cancel fee	On-timeN/A
Vietnam Airlines	Cheapest$222	Average$274	FlexibilityNo cancel fee	On-time81%

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$82+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Siem Reap to Hanoi with Cheapflights

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Cheap flight deals from Siem Reap to Hanoi

Cheapest flights from Siem Reap to HanoiExplore 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 September 3, 2026.

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 September 3, 2026.

Best flights from Siem Reap to HanoiDiscover carefully curated flight deals from Siem Reap to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.

Discover carefully curated flight deals from Siem Reap to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.

Last-minute flights from Siem Reap to HanoiDiscover last-minute flight deals from Siem Reap to Hanoi. Data last updated September 3, 2026 and is based on user searches.

Discover last-minute flight deals from Siem Reap to Hanoi. Data last updated September 3, 2026 and is based on user searches.

One-way flights from Siem Reap to HanoiSearch for one-way flight options from Siem Reap to Hanoi. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.

Search for one-way flight options from Siem Reap to Hanoi. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.

Find flight deals from Siem Reap to Hanoi

Most accurate provider

Most trusted provider

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 Siem Reap to Hanoi that are best for you.

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 September.

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.

Cheapflights Insights

How far ahead should I book a flight from Siem Reap to Hanoi?

To ensure you get the cheapest price possible for a flight from Siem Reap to Hanoi, you should look to book at least 27 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?

What is the cheapest time of day to fly from SAI to HAN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Siem Reap to Hanoi as you normally would.

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

Airfare is above average for this route at the moment.

Siem Reap to Hanoi flights typically cost between $122 and $138 in October.The cheapest round-trip price found within the last 5 days was $154 on VietJet Air (Oct 9-Oct 18).

Weekly flight availability from Siem Reap to Hanoi

The most flights from SAI to HAN are scheduled on a Wednesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from Siem Reap to Hanoi delayed?

About 26% of weekly flights between Siem Reap and Hanoi have experienced delays in the past year, with the average delay time being 105 minutes.

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

Historically, flights departing in the early afternoon 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?

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 Siem Reap to Hanoi flights?

Over the last year, Vietnam Airlines have had the lowest number of delays on this route, with just 25% of flights being delayed.

Reviews of airlines servicing Hanoi

Get a feel of what it's like to fly with Vietnam Airlines and 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.

Related info for your journey

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Alternative routes for Siem Reap to Hanoi

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Complete your trip

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Other flights to Hanoi

Explore flights to Hanoi departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 3, 2026.

Siem Reap and Hanoi flights

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Top 2 airlines flying from Siem Reap to Hanoi

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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 September 3, 2026.

Best flights from Siem Reap to Hanoi
Discover carefully curated flight deals from Siem Reap to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.

Last-minute flights from Siem Reap to Hanoi
Discover last-minute flight deals from Siem Reap to Hanoi. Data last updated September 3, 2026 and is based on user searches.

One-way flights from Siem Reap to Hanoi
Search for one-way flight options from Siem Reap to Hanoi. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.

Siem Reap to Hanoi flights typically cost between $122 and $138 in October.
The cheapest round-trip price found within the last 5 days was $154 on VietJet Air (Oct 9-Oct 18).