How the cheapest fare moved
Nov 11: €175
€175
Nov 5
Nov 11
low €160 · high €204
Departure-day prices · March 2027 Siem Reap → Vientiane
‹ Prev
Next ›
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1 €183 2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Cheapest days highlighted · darker = pricier · past days greyed out · cached one-way fares.
Return-day prices · March 2027 Vientiane → Siem Reap
‹ Prev
Next ›
Loading fares…
Best time to visit Vientiane — climate Jan: ~26°C daytime, 0 rainy days
26°
Jan Feb: ~29°C daytime, 2 rainy days
29°
Feb Mar: ~32°C daytime, 1 rainy days
32°
Mar Apr: ~33°C daytime, 11 rainy days
33°
Apr May: ~33°C daytime, 24 rainy days
33°
May Jun: ~32°C daytime, 30 rainy days
32°
Jun Jul: ~31°C daytime, 25 rainy days
31°
Jul Aug: ~31°C daytime, 25 rainy days
31°
Aug Sep: ~31°C daytime, 29 rainy days
31°
Sep Oct: ~31°C daytime, 18 rainy days
31°
Oct Nov: ~29°C daytime, 8 rainy days
29°
Nov Dec: ~29°C daytime, 1 rainy days
29°
Dec Best value: Nov — fares from €160 and ~29°C daytime.
Flights from Siem Reap to Vientiane start around €160 (typically 1 stop). Range seen recently: €160–256, based on 21 fares found by travellers.
Fly (from €160)
2h 10m duration
€160–256 recent fares
Book
Cheapest cached fares Siem Reap → Vientiane; typically 1 stop (e.g. QV). · Based on 21 fares found by travellers in the last 48h
Weather in Vientiane
Thu
☁️
27°
21°
💧10%
Fri
☁️
29°
23°
💧8%
Sat
☀️
30°
23°
💧22%
Sun
☀️
31°
24°
💧24%
Mon
☁️
32°
24°
💧16%
Tue
🌦️
32°
25°
💧12%
Wed
🌧️
31°
24°
💧53%
In Mar, Vientiane typically sees ~33°C daytime highs and 1 rainy days.
Where to stay in Vientiane 3★+ hotels from €19/night (36 hotels sampled, ~3 weeks out).
Phonepaseuth Guesthouse
hotel · Vientiane
from €19/night ★ 3
Vientiane Golden Sun Hotel & Spa
hotel · Vientiane
from €22/night ★ 3
Viryla Boutique Hotel
hotel · Vientiane
from €22/night ★ 3
Good to know Time difference Same time zone
Things to do in Vientiane Top-rated tours and tickets from €27 — book ahead for the popular ones.
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).
Popular from Siem Reap Cheapest destinations travellers searched recently — refreshed daily.
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 2026-11-11. Some links earn Stayonomy a commission at no cost to you.