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Cheap Flights from Siem Reap (SAI) to Vientiane (VTE)

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Compare Siem Reap–Angkor to Vientiane flight deals

Find the cheapest month or even day of the year to fly to Vientiane

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Flight deals from Siem Reap–Angkor to Vientiane

Looking for a cheap last-minute deal or the best return flight from Siem Reap–Angkor to Vientiane? Find the lowest prices on one-way and return tickets right here.
Vientiane.$471 per passenger.Departing Tue, 20 May, returning Thu, 5 Jun.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Tue, 20 May, arriving in Vientiane.Inbound indirect flight with Thai AirAsia, departs from Vientiane on Thu, 5 Jun, arriving in Siem Reap–Angkor .Price includes taxes and charges.From $471, select.
Vientiane.$482 per passenger.Departing Wed, 14 May, returning Sat, 17 May.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Wed, 14 May, arriving in Vientiane.Inbound indirect flight with Thai AirAsia, departs from Vientiane on Sat, 17 May, arriving in Siem Reap–Angkor .Price includes taxes and charges.From $482, select.
Vientiane.$485 per passenger.Departing Sat, 19 Jul, returning Mon, 21 Jul.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Sat, 19 Jul, arriving in Vientiane.Inbound indirect flight with Thai AirAsia, departs from Vientiane on Mon, 21 Jul, arriving in Siem Reap–Angkor .Price includes taxes and charges.From $485, select.
Vientiane.$529 per passenger.Departing Wed, 26 Nov, returning Sun, 30 Nov.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Wed, 26 Nov, arriving in Vientiane.Inbound indirect flight with Thai AirAsia, departs from Vientiane on Sun, 30 Nov, arriving in Siem Reap–Angkor .Price includes taxes and charges.From $529, select.
Vientiane.$529 per passenger.Departing Thu, 14 Aug, returning Fri, 15 Aug.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Thu, 14 Aug, arriving in Vientiane.Inbound indirect flight with Thai AirAsia, departs from Vientiane on Fri, 15 Aug, arriving in Siem Reap–Angkor .Price includes taxes and charges.From $529, select.
Vientiane.$561 per passenger.Departing Thu, 9 Oct, returning Tue, 21 Oct.Return flight with Lao Airlines and Thai AirAsia.Outbound indirect flight with Lao Airlines, departs from Siem Reap–Angkor on Thu, 9 Oct, arriving in Vientiane.Inbound indirect flight with Thai AirAsia, departs from Vientiane on Tue, 21 Oct, arriving in Siem Reap–Angkor .Price includes taxes and charges.From $561, select.
Vientiane.$583 per passenger.Departing Sun, 26 Oct, returning Thu, 13 Nov.Return flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Sun, 26 Oct, arriving in Vientiane.Inbound indirect flight with Thai AirAsia, departs from Vientiane on Thu, 13 Nov, arriving in Siem Reap–Angkor .Price includes taxes and charges.From $583, select.
Vientiane.$600 per passenger.Departing Wed, 26 Nov, returning Sat, 6 Dec.Return flight with Thai AirAsia and Lao Airlines.Outbound indirect flight with Thai AirAsia, departs from Siem Reap–Angkor on Wed, 26 Nov, arriving in Vientiane.Inbound indirect flight with Lao Airlines, departs from Vientiane on Sat, 6 Dec, arriving in Siem Reap–Angkor .Price includes taxes and charges.From $600, select.

Find the cheapest month to fly from Siem Reap–Angkor to Vientiane

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Siem Reap–Angkor to Vientiane flights are currently cheapest in May.
May
from $482
Jun
from $766
Jul
from $485
Aug
from $529
Sep
Find prices
Oct
from $561
Nov
from $529
Dec
from $700
Jan
from $708
Feb
Find prices
Mar
Find prices
Apr
from $845

Siem Reap–Angkor to Vientiane: Alternative routes

Compare routes from Siem Reap–Angkor to Vientiane below. You may find an airport to fly into that's cheaper, faster, or easier than Vientiane.

Siem Reap to Vientiane: Flight information

The things to know before you go.
Cheapest flight found$471
Cheapest month to flyMay

Finding cheap flights from Siem Reap–Angkor to Vientiane: Frequently asked questions

The best price we found for a return flight from Siem Reap–Angkor to Vientiane is $471. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Siem Reap–Angkor to Vientiane. But we found flights with one or more stops from $471.
As of May 2025, there are no flights flying from Siem Reap–Angkor to Vientiane.
The cheapest month to fly from Siem Reap–Angkor to Vientiane is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Siem Reap–Angkor Airport to Vientiane Airport on Tuesday, 20 May 2025.
No airlines currently offer direct flights between Siem Reap–Angkor Airport and Vientiane Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Vientiane but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Vientiane is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Thai AirAsia offers the cheapest flight tickets to Vientiane.

Travelling from Siem Reap-Ankor International Airport (SAI) to Wattay International Airport (VTE): what you need to know

  • Siem Reap and Vientiane are in the same timezone, UTC+7.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to catch your SAI to VTE flight.

  • Travelling during a peak month like April? Public holidays and other high seasons can mean longer lines at security. Play things extra safe and arrive up to four hours before international flights and two hours before domestic departures.

  • Consider adding a stopover when booking your ticket from Siem Reap-Ankor International Airport to Wattay International Airport. Just uncheck 'Direct flights only' to break up your trip, or even explore someplace new along the way. Here's where you can stop between SAI and VTE:

    • Tan Son Nhat International Airport

    • Suvarnabhumi Airport

    • Phnom Penh International Airport

How to find the cheapest flights from Siem Reap-Ankor International Airport (SAI) to Wattay International Airport (VTE)

  • The lowest price we've found for a one-way Siem Reap-Ankor International Airport to Wattay International Airport flight is $231. A return ticket is currently $471. Depending on the availability when you book, these fares may change.

  • To score cheap tickets from SAI to VTE, book ahead. Airlines typically offer the most competitive fares when flights are first released.

  • Getting cheap flights from Siem Reap-Ankor International Airport to Wattay International Airport is easy if you can be flexible with your travel plans. Use the 'Whole month' search function to see the lowest fares across the month and bag a great deal.

  • Stay on top of deals for cheap flights from SAI to VTE by creating a Price Alert. You'll receive an email or notification on the app when a lower fare becomes available.

  • Select your preferred departure and arrival times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Siem Reap-Ankor International Airport to Wattay International Airport.

Handy information about Siem Reap-Ankor International Airport (SAI)

  • Siem Reap-Ankor International Airport has an excellent on-time performance, reducing the likelihood of delays. Departures from SAI land at their destination as scheduled 80.01% of the time.

  • Central Siem Reap to Siem Reap-Ankor International Airport is approximately 48 kilometres. Depending on traffic, it'll take you about 1 hour to get there if you're catching a cab, ride-sharing or driving.

  • Get your flight from Siem Reap-Ankor International Airport to Wattay International Airport off to an easy start. Only a quick drive from SAI, book a night at Chansor Community Homestay 18 and be well-rested for the trip ahead.

Arriving at Wattay International Airport (VTE)

  • Consider staying in a hotel near VTE if you're on a late Siem Reap-Ankor International Airport to Wattay International Airport flight. Choose one of these accommodation options and skip the long transfer:

  • Hit the road running by picking up a Wattay International Airport rental car. Grab a set of wheels from Sixt, Avis or Budget to explore Vientiane and beyond.

  • Lock in the lowest price by reserving your vehicle from Wattay International Airport about three weeks ahead of your trip.

Getting from Wattay International Airport (VTE) to central Vientiane

  • Wattay International Airport is approximately 8 kilometres from central Vientiane. The drive time takes around 20 minutes.

When to fly to Wattay International Airport (VTE)

  • August is the most popular month for flights from Siem Reap-Ankor International Airport to Wattay International Airport. To avoid the crowds, go to Vientiane in February.

  • Lock in your flight from Siem Reap-Ankor International Airport to Wattay International Airport for April if you'd like to explore Vientiane during its warmest month. You can expect temperatures of between 23ºC (73ºF) and 42ºC (108ºF).

  • Search for cheap tickets from SAI to VTE in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 14ºC (57ºF) and 31ºC (88ºF) on average.

Explore more of Laos

  • You've visited Vientiane, now it's time to discover more of Laos. Journey about 467 kilometres south-east to Pakse to tick off its top attractions. From Wat Luang to Champasak Historical Heritage Museum and Golden Buddha, there's plenty to keep you busy.

  • Thakhek is another well-known destination in Laos and is around 241 kilometres east of Vientiane. No trip is complete without seeing MAG UXO Visitor Centre, Wat Nabo and Mekong Riverside View Point.

Plan the rest of your trip from Siem Reap to Vientiane

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.