Which airline has the best punctuality record on Siem Reap to Hanoi flights?

Over the past year, Vietnam Airlines have had the lowest number of delays on this route, with just 26% of flights being delayed.

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 Saturday has historically faced a higher average of delays compared to other days of the week.

How popular is this Siem Reap to Hanoi flight route?

Flights from Siem Reap–Angkor Intl to Hanoi Noibai have been viewed 3 times in the past calendar month.

How long is the flight from Siem Reap to Hanoi?

A quick flight from Siem Reap to Hanoi can take about 1h 45m. Vietnam Airlines provides one of the quickest options available for as low as £175. The distance from Siem Reap to Hanoi is about 552 mi. All flights are typically direct.

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

Currently priced at £88, VietJet Air will fly you from Siem Reap to Hanoi and back. In addition to VietJet Air, many other airlines offer competitively priced options for your trip. This flight start at 36% lower than the current average price 3 months from now.

Weekly flight availability from Siem Reap to Hanoi

The most flights from SAI to HAN are scheduled on a Monday (3 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

In terms of precipitation, rainfall in Hanoi ranges from 14.0 - 296.0 inches per month. August is typically the wettest month, when rainfall can reach 296.0 mm. December is typically the driest time to visit Hanoi when rainfall is around 14.0 mm.

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 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 17.0 C).

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Siem Reap to Hanoi on time: VietJet Air (60%), Air France (48%), Vietnam Airlines (48%).

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 holiday 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.

£66+ Cheap Flights from Siem Reap, Cambodia to Hanoi

Cheap flight deals from Siem Reap to Hanoi

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

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 30 September 2026.

Fri 2/1019:05 -

Nonstop1h 45m

Sun 4/1016:20 -

Nonstop1h 45m

Deal found 28/9£116

Fri 9/1019:05 -

Nonstop1h 45m

Tue 13/1015:30 -

Nonstop1h 40m

Deal found 26/9£138

Fri 2/1017:20 -

1 stop3h 15m

Sun 4/1016:20 -

Nonstop1h 45m

Deal found 28/9£162

Sat 10/1017:20 -

1 stop3h 15m

Thu 15/1015:30 -

Nonstop1h 40m

Deal found 27/9£175

Fri 9/1017:20 -

1 stop3h 15m

Tue 13/1015:30 -

Nonstop1h 40m

Deal found 26/9£180

Wed 14/1018:05 -

Nonstop1h 45m

Sat 17/1013:10 -

1 stop3h 15m

Deal found 27/9£181

Mon 12/1017:20 -

1 stop3h 15m

Mon 19/1013:10 -

1 stop3h 15m

Deal found 27/9£182

Fri 2/1019:10 -

2 stops14h 45m

Sun 4/1015:50 -

Nonstop1h 40m

Deal found 28/9£186

Thu 8/1018:05 -

Nonstop1h 45m

Mon 19/1013:10 -

1 stop3h 15m

Deal found 27/9£187

Mon 12/1018:05 -

Nonstop1h 45m

Fri 16/1020:25 -

2 stops21h 55m

Deal found 30/9£201

Find flight deals from Siem Reap to Hanoi

Round-trip from	£175
One-way from	£66
Popular in	June
Cheapest in	March
Average price	£120

Vietnam Airlines
10/10-15/10
1 total stop
4h 55m total
Siem Reap to Hanoi

Search Deals

VietJet Air
23/3-31/12
Nonstop
1h 45m total
Siem Reap to Hanoi

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£6 potential increase over avg. return price).

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 September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Tue 8/12

19:05-20:50

Nonstop1h 45m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£91

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sat 12/12

19:05-20:50

Nonstop1h 45m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£91

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Tue 16/3

19:05-20:50

Nonstop1h 45m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£98

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Mon 22/3

19:05-20:50

Nonstop1h 45m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£98

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sun 13/12

19:05-20:50

Nonstop1h 45m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£100

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sat 26/12

17:05-20:30

1 stop3h 25m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£104

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Mon 8/2

19:05-20:50

Nonstop1h 45m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£104

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Fri 26/3

17:05-20:30

1 stop3h 25m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£107

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Mon 29/3

17:20-20:35

1 stop3h 15m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£107

Siem ReapHanoi

SAI Siem Reap–Angkor Intl - HAN Hanoi Noibai

SAIHAN

Siem Reap–Angkor Intl

Sun 22/11

19:05-20:50

Nonstop1h 45m

Hanoi Noibai

Wed 31/12

00:00-23:00

Nonstop0h 00m

£115

Flights are sorted by cheapest return flights first.

Deals found on 30/9

Showing 1-10 of 16 resultsSorted by cheapest first

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 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 Siem Reap to Hanoi

Prices

Airlines

Delays

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

Currently, March is the cheapest month in which you can book a flight from Siem Reap to Hanoi (average of £113). Flying from Siem Reap to Hanoi in June is currently the most expensive (average of £168). 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?

When flying from Siem Reap to Hanoi, 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 Siem Reap to Hanoi?

Airfare is above average for this route at the moment.

Siem Reap to Hanoi flights typically cost between £117 and £137 in October.
The cheapest return price found within the last 5 days was £175 on Vietnam Airlines (10 Oct–15 Oct).

Reviews of airlines servicing Hanoi

See what other customers who have flown with VietJet Air from Siem Reap to Hanoi have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

VietJet Air

5.6

Fair

175 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

175 reviews

VietJet Air

5.6

Fair

175 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 Siem Reap to Hanoi flight route?
Flights from Siem Reap–Angkor Intl to Hanoi Noibai have been viewed 3 times in the past calendar month.
How long is the flight from Siem Reap to Hanoi?
A quick flight from Siem Reap to Hanoi can take about 1h 45m. Vietnam Airlines provides one of the quickest options available for as low as £175. The distance from Siem Reap to Hanoi is about 552 mi. All flights are typically direct.
What is the cheapest airline to fly from Siem Reap to Hanoi round-trip?
Currently priced at £88, VietJet Air will fly you from Siem Reap to Hanoi and back. In addition to VietJet Air, many other airlines offer competitively priced options for your trip. This flight start at 36% lower than the current average price 3 months from now.
What are the most reliable airlines from Siem Reap to Hanoi?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Siem Reap to Hanoi on time: VietJet Air (60%), Air France (48%), Vietnam Airlines (48%).
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 holiday 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, March is the cheapest month in which you can book a flight from Siem Reap to Hanoi (average of £113). Flying from Siem Reap to Hanoi in June is currently the most expensive (average of £168). 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

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Top airline flying from Siem Reap to Hanoi

Airline	Cheapest	Average	Flexibility	On-time
VietJet Air	Cheapest£88	Average£120	FlexibilityNo cancel fee	On-timeN/A	Search VietJet Air flights

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Cheapflights helps you search for flights from Siem Reap to Hanoi via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Siem Reap to Hanoi 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 Siem Reap to Hanoi with no change fees?

Certainly. Search results for flights to Hanoi from Siem Reap 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 Siem Reap to Hanoi become cheaper?

Yes! Start tracking prices for Siem Reap to Hanoi flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from Siem Reap, Cambodia to Hanoi from £66

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/3. Fares are subject to change and may not be available on all flights or dates of travel.

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 30 September 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 30 September 2026.

Best flights from Siem Reap to HanoiDiscover carefully curated flight deals from Siem Reap to Hanoi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Discover carefully curated flight deals from Siem Reap to Hanoi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Direct flights from Siem Reap to HanoiExplore direct flight options from Siem Reap to Hanoi based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.

Explore direct flight options from Siem Reap to Hanoi based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.

Last-minute flights from Siem Reap to HanoiDiscover last-minute flight deals from Siem Reap to Hanoi. Data last updated 30 September 2026 and is based on user searches.

Discover last-minute flight deals from Siem Reap to Hanoi. Data last updated 30 September 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 30 September 2026.

Search for one-way flight options from Siem Reap to Hanoi. Find affordable one-way fares based on user searches. Data last updated 30 September 2026.

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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

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?

When flying from Siem Reap to Hanoi, 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 Siem Reap to Hanoi?

Airfare is above average for this route at the moment.

Siem Reap to Hanoi flights typically cost between £117 and £137 in October.The cheapest return price found within the last 5 days was £175 on Vietnam Airlines (10 Oct–15 Oct).

Weekly flight availability from Siem Reap to Hanoi

The most flights from SAI to HAN are scheduled on a Monday (3 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 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 Saturday 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 past year, Vietnam Airlines have had the lowest number of delays on this route, with just 26% of flights being delayed.

Reviews of airlines servicing Hanoi

See what other customers who have flown with VietJet Air from Siem Reap to Hanoi have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

How popular is this Siem Reap to Hanoi flight route?

How long is the flight from Siem Reap to Hanoi?

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

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Siem Reap to Hanoi

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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 30 September 2026.

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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 30 September 2026.

Best flights from Siem Reap to Hanoi
Discover carefully curated flight deals from Siem Reap to Hanoi that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 September 2026.

Direct flights from Siem Reap to Hanoi
Explore direct flight options from Siem Reap to Hanoi based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 September 2026.

Last-minute flights from Siem Reap to Hanoi
Discover last-minute flight deals from Siem Reap to Hanoi. Data last updated 30 September 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 30 September 2026.

Siem Reap to Hanoi flights typically cost between £117 and £137 in October.
The cheapest return price found within the last 5 days was £175 on Vietnam Airlines (10 Oct–15 Oct).