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

Frequently Asked Questions

• What are the cheapest flights from Hanoi to Siem Reap (HAN-SAI)?

  Based on Trip.com data, VietJet Air offers one-way fares as low as US$59 on Cheapest nonstop routes (e.g. HAN to SAI on Thu, May 7), while VietJet Air offers Cheapest nonstop round-trips from US$128 departing on Thu, May 14 and returning on Thu, May 21.

• Which airlines offer direct flights from Hanoi to Siem Reap?

  At the moment, you can catch a nonstop flight from Hanoi to Siem Reap with the following airlines, including: VietJet Air Vietnam Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

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

  It takes about 1 hour 59 minutes to fly from Hanoi to Siem Reap.

• When is the best time to book flights from Hanoi to Siem Reap?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Hanoi to Siem Reap is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Hanoi to Siem Reap?

  Based on Trip.com data in the past 4 weeks, there is 22 flight per week flying from Hanoi to Siem Reap. You can check the weekly schedule for popular airlines on this route below: Vietnam Airlines: S/M/T/W/T/F/S -- VN837 (15:23)

• How can I find the best deals on flights from Hanoi to Siem Reap?

  To find best deals on flights from Hanoi to Siem Reap, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, May 7, with one-way flights priced at just US$59.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is VietJet Air.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Get exclusive promo codes for Trip.com app users.

• Which upcoming date is cheapest to fly from Hanoi to Siem Reap on?

  After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Hanoi to Siem Reap on March 22, 2026 with VietJet Air, with prices starting at US$52.

• Which airports can I fly to for Siem Reap from Hanoi?

  You can land at any one of the following hubs in Siem Reap, with Noi Bai International Airport to Siem Reap Angkor International Airport (HAN-SAI) is by far the most common option on this route: Siem Reap Angkor International Airport (SAI).

• Is there any time difference between Hanoi and Siem Reap?

  The time difference between Siem Reap and Hanoi is 0h.

• How do I change or cancel my ticket from Hanoi to Siem Reap?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.