Cheap Flights Hanoi to Siem Reap from £56

Flight FAQs

• Which airlines offer the cheapest flights from Hanoi to Siem Reap?

  Based on Trip.com data, VietJet Air offers Cheapest nonstop one-way flights from £56 (for example, HAN–SAI on Wed, Sep 16). For a Cheapest nonstop return flight, VietJet Air offers fares from £118, departing on Mon, Oct 5 and returning on Wed, Oct 7.

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

  At the moment, you can catch a direct 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?

  A flight from Hanoi (HAN) to Siem Reap (SAI) takes an average of 1 hour 42 minutes.

• 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 from Hanoi to Siem Reap each week?

  On average, 11 direct flights operate each week between Hanoi and Siem Reap. See below the schedules of the main airlines serving this route:
  Vietnam Airlines: S/M/T/W/T/F/S – VN837 (departure at 15:39)

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

  Here are some tips for finding the best flight deals from Hanoi to Siem Reap on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Wed, Sep 16, with one-way fares from just £56.
  · Compare airlines. VietJet Air currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Get exclusive promo codes on the Trip.com app.

• Which upcoming date is the cheapest for flights from Hanoi to Siem Reap?

  After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Hanoi to Siem Reap on September 18, 2026 with VietJet Air, with prices starting at £51.

• Which airports should you choose for flights from Hanoi to Siem Reap?

  Flights to Siem Reap can arrive at: Siem Reap Angkor International Airport (SAI). The most common route connects Noi Bai International Airport and Siem Reap Angkor International Airport (HAN–SAI).

• What is the time difference between Hanoi and Siem Reap?

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

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

  Tickets can only be changed or cancelled 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.

• What is the average price of a one-way flight from Hanoi to Siem Reap?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Hanoi to Siem Reap is £165. Fares vary by travel date, airline and availability.

• What is the average price of a return flight from Hanoi to Siem Reap?

  Based on Trip.com data for flights departing in the next 30 days, the average return fare from Hanoi to Siem Reap is £235. Fares vary by travel date, airline and availability.

• How do I book flights from Hanoi to Siem Reap on Trip.com?

  Enter Hanoi and Siem Reap, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the Hanoi to Siem Reap route?

  VietJet Airare the most popular budget airlines flying from Hanoi to Siem Reap. Check baggage, seat and payment fees before comparing the final price.