Cheap Flights from Phnom Penh to Vientiane from $173

Frequently Asked Questions

• What are the cheapest flights from Phnom Penh to Vientiane (KTI-VTE)?

  Based on Trip.com data, Thai Vietjet Air offers one-way fares as low as $173 on Cheapest nonstop routes (e.g. KTI to VTE on Wed, Jun 17), while Thai AirAsia offers Cheapest nonstop round-trips from $339 departing on Tue, Jun 16 and returning on Sat, Jun 20.

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

  At the moment, you can catch a nonstop flight from Phnom Penh to Vientiane with the following airlines, including: Cambodia Airways Vietnam Airlines Thai AirAsia Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from Phnom Penh (KTI) to Vientiane (VTE) and what is the distance?

  It takes around 1 hour 47 minutes to fly from Phnom Penh (KTI) to Vientiane (VTE).

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

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

  Based on Trip.com data in the past 4 weeks, there is 10 flight per week flying from Phnom Penh to Vientiane. You can check the weekly schedule for popular airlines on this route below: Vietnam Airlines: S/M/T/W/T/F/S -- VN920 (18:01)

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

  To find best deals on flights from Phnom Penh to Vientiane, 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 Wed, Jun 17, with one-way flights priced at just $173.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Vietnam Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Vientiane travel is around January.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Phnom Penh (KTI) to Vientiane (VTE) the cheapest?

  The cheapest months to fly from Phnom Penh to Vientiane is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Phnom Penh to Vientiane on?

  After crunching the numbers on our June flight calendar, it's currently cheapest to fly from Phnom Penh to Vientiane on June 17, 2026 with Thai Vietjet Air, with prices starting at $171.

• Which airports can I fly to for Vientiane from Phnom Penh?

  You can land at any one of the following hubs in Vientiane, with Techo International Airport to Wattay International Airport (KTI-VTE) is by far the most common option on this route: Wattay International Airport (VTE).

• Is there any time difference between Phnom Penh and Vientiane?

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

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

  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.