Siem Reap to Vientiane

1 ways to travelfastest 2h 15mfly from €187
Photo: Will Sun / Unsplash

When is it cheapest to fly?

Sep: from €187 — show this month's calendar €187 SepOct: from €205 — show this month's calendar €205 OctNov: from €220 — show this month's calendar €220 NovDec: from €221 — show this month's calendar €221 DecJan: from €205 — show this month's calendar €205 JanApr: from €220 — show this month's calendar €220 Apr

Departure-day prices · September 2030 Siem Reap → Vientiane

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Return-day prices · September 2030 Vientiane → Siem Reap

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Best time to visit Vientiane — climate

Jan: ~26°C daytime, 0 rainy days 26° JanFeb: ~29°C daytime, 2 rainy days 29° FebMar: ~32°C daytime, 1 rainy days 32° MarApr: ~33°C daytime, 11 rainy days 33° AprMay: ~33°C daytime, 25 rainy days 33° MayJun: ~32°C daytime, 30 rainy days 32° JunJul: ~31°C daytime, 26 rainy days 31° JulAug: ~31°C daytime, 25 rainy days 31° AugSep: ~31°C daytime, 29 rainy days 31° SepOct: ~31°C daytime, 18 rainy days 31° OctNov: ~29°C daytime, 8 rainy days 29° NovDec: ~29°C daytime, 1 rainy days 29° Dec

Best value: Sep — fares from €187 and ~31°C daytime.

Flights from Siem Reap to Vientiane start around €187 (typically 1 stop). Range seen recently: €187–222, based on 11 fares found by travellers.

Fly (from €187)
2h 15mduration
€187–222recent fares
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Cheapest cached fares Siem Reap → Vientiane; typically 1 stop (e.g. K6). · Based on 11 fares found by travellers in the last 48h

Cheapest round trips to Vientiane

Fares found by travellers in the last 48 hours — refreshed daily.

Oct 22 – Dec 18 Lao Airlines · 1 stop · 4h 40m €392 Book

Weather in Vientiane

Fri ⛈️ 31° 24° 💧100%
Sat ⛈️ 30° 24° 💧93%
Sun ⛈️ 30° 24° 💧94%
Mon ⛈️ 30° 24° 💧98%
Tue ⛈️ 30° 24° 💧96%
Wed ⛈️ 31° 24° 💧96%
Thu ⛈️ 31° 24° 💧91%

Where to stay in Vientiane

3★+ hotels from €18/night (36 hotels sampled, ~3 weeks out).

Mali Namphu Hotel hotel · Vientiane
from €18/night★ 3
See availability
Phonepaseuth Guesthouse hotel · Vientiane
from €19/night★ 3
See availability
Xaysomboun Hotel & SPA hotel · Vientiane
from €21/night★ 4
See availability

Good to know

Time differenceSame time zone
Time in the air4h 40m

Things to do in Vientiane

Top-rated tours and tickets from €11 — book ahead for the popular ones.

from €148
Half-Day Vientiane City Bike Tour | Laos★ 5.0 (5)
from €62
Vientiane Private Lao Cooking Class with Market Tour and Lunch★ 5.0 (4)
from €26
Get Your Laos–China Train Ticket Fast – No Waiting, No Worries★ 5.0 (3)
from €11
Laos Railway Tickets Online: Skip Long Queues, Avoid Missing★ 5.0 (2)
from €105
Lao Art Museum and City Explore with Lunch★ 5.0 (1)
from €333
Vientiane, Vang Vieng & Surrounding 3 Days★ 5.0 (1)

Tours and tickets provided by Viator (a Tripadvisor company). Some links earn Stayonomy a commission.

About Vientiane

Vientiane (Lao: ວຽງຈັນ, Vieng Chan) is the capital of Laos, with stunning temples, vibrant night markets, beautiful French-Indochinese architecture, lively street food stalls, and traditional craft markets.

Read the full Vientiane guide

Guide content from Wikivoyage contributors (CC BY-SA).

Round out the trip

eSIM for VientianeData from the moment you land — no roaming bills. Rent a car in VientianeCompare local and international rental desks. Airport transferFixed-price pickup waiting at arrivals. Travel insuranceMedical + luggage cover from a few €/day.

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Flight prices are real fares travellers found in the last 48 hours, refreshed daily — the booking site confirms the final price. Train, bus and ferry fares are shown on the operators' booking sites. Weather data by Open-Meteo; exchange rates: ECB reference. Data updated 2026-09-03. Some links earn Stayonomy a commission at no cost to you.