Cheap flights from Hanoi to Siem Reap

One-way fares from $77 · HAN → SAI · prices found by travellers in the last 48 hours

Compare all dates Siem Reap → Hanoi
Cheapest fare
$77

Vietjet · Sat, Dec 12

Cheapest month
December

from $77

Direct flights
Yes

Vietjet and Vietnam Airlines

Flight time
1h 40m

880 km

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Cheapest month to fly from Hanoi to Siem Reap

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $78
  2. December 2026 Cheapest $77
  3. January 2027 $87
  4. February 2027 $99
  5. March 2027 $114
  6. April 2027 $112
  7. May 2027 $89

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Vietjet
Depart16:20 Sat, Dec 12HAN → SAI 1h 45m · Direct
$77one way, per person
View deal
Vietjet
Depart16:20 Tue, Dec 8HAN → SAI 1h 45m · Direct
$78one way, per person
View deal
Vietjet
Depart16:20 Fri, Dec 18HAN → SAI 1h 45m · Direct
$80one way, per person
View deal
Vietjet
Depart16:20 Thu, Dec 10HAN → SAI 1h 45m · Direct
$81one way, per person
View deal
Vietjet
Depart16:20 Wed, Dec 16HAN → SAI 1h 45m · Direct
$81one way, per person
View deal
Vietjet
Depart16:20 Tue, Dec 15HAN → SAI 1h 45m · Direct
$84one way, per person
View deal
Vietjet
Depart16:20 Thu, Dec 17HAN → SAI 1h 45m · Direct
$84one way, per person
View deal
Vietjet
Depart16:20 Sat, Dec 19HAN → SAI 1h 45m · Direct
$84one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to Siem Reap

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in Siem ReapCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in Siem ReapTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in Siem ReapPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in Siem ReapCompare rental cars from major brands on EconomyBookings Compare cars →

Stay connected

eSIM for CambodiaMobile data from the moment you land, by Airalo Get eSIM →

About flights from Hanoi to Siem Reap

Hanoi (HAN) and Siem Reap (SAI) are about 880 km apart. Direct flights take around 1h 40m, and recent direct fares were with Vietjet and Vietnam Airlines. Over the next few months, one-way fares start from $77, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Hanoi to Siem Reap?

The cheapest one-way fare we've seen recently is $77 with Vietjet, departing Saturday, December 12, 2026. Over the coming months, the lowest fare in each month ranges from $77 to $114.

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

December 2026 currently has the lowest fares, from $77 one way.

Are there direct flights from Hanoi to Siem Reap?

Yes. Recent direct fares were with Vietjet and Vietnam Airlines.

How long is the flight from Hanoi to Siem Reap?

A direct flight takes about 1h 40m. Hanoi and Siem Reap are around 880 km apart.

Which airlines fly from Hanoi to Siem Reap?

Recent fares on this route were with Vietjet and Vietnam Airlines.

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