Cheap Flights Vientiane to Phnom Penh from £115

Flight FAQs

• Which airlines offer the cheapest flights from Vientiane to Phnom Penh?

  Based on Trip.com data, Lao Airlines offers Cheapest nonstop one-way flights from £115 (for example, VTE–KTI on Tue, Dec 1). For a Cheapest nonstop return flight, Thai AirAsia offers fares from £249, departing on Fri, Oct 16 and returning on Fri, Oct 23.

• Which airlines offer direct flights from Vientiane to Phnom Penh?

  At the moment, you can catch a direct flight from Vientiane to Phnom Penh with the following airlines, including: Cambodia Airways 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 Vientiane to Phnom Penh?

  A flight from Vientiane (VTE) to Phnom Penh (KTI) takes an average of 1 hour 40 minutes.

• When is the best time to book flights from Vientiane to Phnom Penh?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Vientiane to Phnom Penh 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 Vientiane to Phnom Penh each week?

  On average, 9 direct flights operate each week between Vientiane and Phnom Penh. See below the schedules of the main airlines serving this route:
  Cambodia Airways: -/-/-/-/-/-/- – KR766 (departure at 16:39) Vietnam Airlines: S/M/T/W/T/F/S – VN921 (departure at 11:33)

• How can I find the best deals on flights from Vientiane to Phnom Penh?

  Here are some tips for finding the best flight deals from Vientiane to Phnom Penh on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Tue, Dec 1, with one-way fares from just £115.
  · Compare airlines. Vietnam Airlines 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.
  · Avoid peak season or book early. July is generally the busiest month for travel to Phnom Penh.
  · Get exclusive promo codes on the Trip.com app.

• When is the best time to book a flight from Vientiane to Phnom Penh to get the best price?

  The cheapest month to book a flight from Vientiane to Phnom Penh is usually October, when demand is lower.

• Which upcoming date is the cheapest for flights from Vientiane to Phnom Penh?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Vientiane to Phnom Penh on October 9, 2026 with Thai AirAsia, with prices starting at £107.

• Which airports should you choose for flights from Vientiane to Phnom Penh?

  Flights to Phnom Penh can arrive at: Techo International Airport (KTI) and Phnom Penh International Airport (PNH). The most common route connects Wattay International Airport and Techo International Airport (VTE–KTI).

• What is the time difference between Vientiane and Phnom Penh?

  The time difference between Phnom Penh and Vientiane is 0m.

• How can I change or cancel my flight ticket from Vientiane to Phnom Penh?

  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 Vientiane to Phnom Penh?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Vientiane to Phnom Penh is £184. Fares vary by travel date, airline and availability.

• What is the average price of a return flight from Vientiane to Phnom Penh?

  Based on Trip.com data for flights departing in the next 30 days, the average return fare from Vientiane to Phnom Penh is £365. Fares vary by travel date, airline and availability.

• How do I book flights from Vientiane to Phnom Penh on Trip.com?

  Enter Vientiane and Phnom Penh, 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 Vientiane to Phnom Penh route?

  Thai AirAsiaare the most popular budget airlines flying from Vientiane to Phnom Penh. Check baggage, seat and payment fees before comparing the final price.