SAI - HAN

£66 Find Cheap Flights from Siem Reap to Hanoi – Compare and Save

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Everything you should know

Cheapest return flight
£165
Typical prices: £120-£164
Vietnam Airlines
Mon 10/12Mon 17/12
SAI - HAN • 1 stop
Cheapest direct flights
£184
Typical prices: £119-£160
Vietnam Airlines
Fri 5/1Tue 16/1
SAI - HAN • Direct
Direct flights
You can fly direct with Vietnam Airlines and VietJet Air. Average duration is 1h 45m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 75% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 18 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 16% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Hanoi!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Siem Reap to Hanoi (SAI-HAN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Siem Reap to Hanoi

Thu, 10 Dec - Thu, 17 Dec
Vietnam Airlines Logo
17:05 - 20:30SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
3h 25m1 stop Luang Prabang
Vietnam Airlines Logo
18:00 - 19:40HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
1h 40mdirect
£165Vietnam Airlines
Thu, 10 Dec - Thu, 17 Dec
Vietnam Airlines Logo
17:05 - 20:30SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
3h 25m1 stop Luang Prabang
Vietnam Airlines Logo
12:40 - 16:10HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
3h 30m1 stop Luang Prabang
£172Vietnam Airlines
Thu, 10 Dec - Thu, 17 Dec
Vietnam Airlines Logo
17:05 - 20:30SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
3h 25m1 stop Luang Prabang
Vietnam Airlines Logo
12:40 - 16:10HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
3h 30m1 stop Luang Prabang
£184Vietnam Airlines
Tue, 5 Jan - Sat, 16 Jan
Vietnam Airlines Logo
20:30 - 22:15SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
1h 45mdirect
Vietnam Airlines Logo
18:00 - 19:40HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
1h 40mdirect
£184Vietnam Airlines
Thu, 3 Dec - Sun, 6 Dec
Vietnam Airlines Logo
20:30 - 22:15SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
1h 45mdirect
Vietnam Airlines Logo
15:15 - 16:55HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
1h 40mdirect
£189Vietnam Airlines
Thu, 3 Dec - Sun, 6 Dec
Vietnam Airlines Logo
17:05 - 20:30SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
3h 25m1 stop Luang Prabang
Vietnam Airlines Logo
15:15 - 16:55HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
1h 40mdirect
£192Vietnam Airlines
Thu, 7 Jan - Sat, 16 Jan
Vietnam Airlines Logo
17:05 - 20:30SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
3h 25m1 stop Luang Prabang
Vietnam Airlines Logo
18:00 - 19:40HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
1h 40mdirect
£192Vietnam Airlines
Thu, 7 Jan - Tue, 12 Jan
Vietnam Airlines Logo
17:05 - 20:30SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
3h 25m1 stop Luang Prabang
Vietnam Airlines Logo
15:15 - 16:55HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
1h 40mdirect
£192Vietnam Airlines
Fri, 8 Jan - Sun, 24 Jan
VietJet Air Logo
19:05 - 20:50SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
1h 45mdirect
VietJet Air Logo
16:20 - 18:05HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
1h 45mdirect
£239VietJet Air
Fri, 8 Jan - Sun, 24 Jan
VietJet Air Logo
19:05 - 20:50SAI  Siem Reap–Angkor Intl-HAN Hanoi Noibai
1h 45mdirect
VietJet Air Logo
16:20 - 18:05HAN  Hanoi Noibai-SAI Siem Reap–Angkor Intl
1h 45mdirect
£239VietJet Air
Booking Insights

Price, demand, and travel trends for Siem Reap to Hanoi flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Siem Reap to Hanoi?

Return flights from Siem Reap to Hanoi typically range from £120 to £164. The lowest price found in the past 5 days was £165 on Vietnam Airlines.

What's the cheapest day of the week to fly from Siem Reap to Hanoi?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Siem Reap to Hanoi. It's 9% cheaper than the average day, while Friday is the most expensive, with prices 13% higher.

What is the cheapest month to fly from Siem Reap to Hanoi?

•March is the cheapest month to fly from Siem Reap to Hanoi at £116 return.
•June (£166) and April (£165) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 42% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Siem Reap to Hanoi the cheapest?

Flights from Siem Reap to Hanoi are cheapest 18 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Siem Reap to Hanoi flights

Low season

March

Cheapest flight

£66
Beat the crowds with an average 42% drop in traveller numbers.
The most popular month to fly with an average 70% increase in traveller numbers.
One-way flight from Siem Reap to Hanoi

When to book flights from Siem Reap to Hanoi

Are your dates flexible? Find out the best times to travel from Siem Reap to Hanoi based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Siem Reap to Hanoi flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • What are the earliest and latest flights from Siem Reap to Hanoi?

    These are the earliest and latest flight times available from Siem Reap to Hanoi:

    • Earliest: departs at 17:55 and lands at 19:40
    • Latest: departs at 20:30 and lands at 22:15.

    The flight takes about 1h 45m.

  • Which cabin classes can I book on flights from Siem Reap to Hanoi?

    Only Economy class is available on flights from Siem Reap to Hanoi.

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

    A direct flight from Siem Reap to Hanoi takes 1h 45m, covering 552 miles.

  • Do I need a passport to fly from Siem Reap to Hanoi?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Siem Reap to Hanoi flight?

    Return flights from Siem Reap to Hanoi range from £120 to £164, with an average of £138 over the past 12 months. Anything below £120 counts as a good deal.

  • How expensive are last-minute Siem Reap to Hanoi flights?

    Last-minute fares on this route (booked within two weeks of departure) run 10% above the £138 route average. Book 18 weeks before departure for the lowest fares.

  • What is the standard checked bag allowance on flights from Siem Reap to Hanoi?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £16–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

  • How are flight departures from Siem Reap to Hanoi spread across the day?

    Evening is the busiest departure period on Siem Reap to Hanoi flights, with 100% leaving in that window. Morning departures account for 0%, Afternoon flights for 0%, and Night flights for 0%.

  • Have flight prices from Siem Reap to Hanoi changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £165 to £635. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Siem Reap to Hanoi looking right now?

    One-way fares from Siem Reap to Hanoi are currently in line with typical prices for this route. Average one-way fares are about £93.

  • Which airports can I use when flying from Siem Reap to Hanoi?

    Flights from Siem Reap to Hanoi usually depart from Siem Reap–Angkor Intl (SAI) and arrive at Hanoi Noibai (HAN).

  • What time of day has the fewest delays on flights from Siem Reap to Hanoi?

    Afternoon flights have the fewest delays on this route, while evening departures tend to have the most.

  • At what point is a flight considered delayed on the route from Siem Reap to Hanoi?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Siem Reap to Hanoi route, 26% of flights were delayed in the past three months, with delays averaging 1h 46m.

  • Can I save money by using flexible dates for flights from Siem Reap to Hanoi?

    Yes. Flexible dates can save you up to 20% on flights from Siem Reap to Hanoi. Tuesday is the cheapest departure day at £127 return on average, while Friday is the most expensive at £157, a difference of £31.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly from Siem Reap to Hanoi?

    2 airlines operate flights between Siem Reap and Hanoi. The airlines offering direct flights on this route include:

    • Vietnam Airlines
    • VietJet Air

  • What popular places can I visit in Hanoi?

    Some of the most popular sights in Hanoi are Hoan Kiem Lake and St. Joseph Cathedral. These are among the most viewed places in Hanoi on KAYAK.

  • Which airlines include bags at no extra cost on Siem Reap to Hanoi flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • VietJet Air: a cabin bag and a checked bag in Economy class
    • Vietnam Airlines: a cabin bag and a checked bag in Economy class
    • Hahn Air Systems: a cabin bag and a checked bag in Economy class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Siem Reap to Hanoi flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Friday. On this route, Tuesday flights average £127, about £31 less than Friday fares (19% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 18 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Siem Reap to Hanoi trip for March. Fares historically average £116 return in that month – typically £49 less than the most expensive month, which is June (based on the last 12 months).
  • For the best chance of arriving on time, fly with Vietnam Airlines. Over the past three months, 75% of Vietnam Airlines flights from Siem Reap to Hanoi arrived on time, slightly above the route average of 74%. When flights on this route arrive late, they're delayed by an average of 1h 46m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Hanoi Noibai Airport.

    • Family Transit Hotel

Prefer to fly direct from Siem Reap to Hanoi?

 
Find which airlines fly direct from Siem Reap–Angkor Intl Airport to Hanoi Noibai Airport, which days they fly and book direct flights.

Direct departures

Siem Reap–Angkor Intl to Hanoi Noibai

Monday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Tuesday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Wednesday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Thursday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Friday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Saturday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Sunday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

See more direct flights

Direct returns

Hanoi Noibai to Siem Reap–Angkor Intl

Monday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Tuesday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Wednesday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Thursday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Friday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Saturday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

Sunday

VietJet Air,Vietnam Airlines

VietJet Air,Vietnam Airlines

See more direct flights

More options for your flight from Siem Reap to Hanoi

Complete your trip to Hanoi with a hotel stay or car hire