How the cheapest fare moved
Oct 11: €192 €192
Oct 5
Oct 11
low €192 · high €226
Departure-day prices · September 2027 Siem Reap → Vientiane
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Return-day prices · September 2027 Vientiane → Siem Reap
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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, 25 rainy days
33°
May Jun: ~32°C daytime, 30 rainy days
32°
Jun Jul: ~31°C daytime, 26 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: Jan — fares from €190 and ~26°C daytime.
Flights from Siem Reap to Vientiane start around €190 (typically 1 stop). Range seen recently: €190–242, based on 30 fares found by travellers.
Fly (from €190)
2h 15m duration
€190–242 recent fares
Book
Cheapest cached fares Siem Reap → Vientiane; typically 1 stop (e.g. FD). · Based on 30 fares found by travellers in the last 48h
Cheapest round trips to Vientiane Fares found by travellers in the last 48 hours — refreshed daily.
Nov 12 – Nov 17
THAI Airways · 1 stop · 2h 15m
€379
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Nov 9 – Nov 15
THAI Airways · 1 stop · 2h 15m
€393
Book
Nov 9 – Nov 16
THAI Airways · 1 stop · 2h 15m
€393
Book
Nov 11 – Nov 15
THAI Airways · 1 stop · 2h 15m
€393
Book
Nov 12 – Nov 15
THAI Airways · 1 stop · 2h 15m
€393
Book
Nov 10 – Nov 15
THAI Airways · 1 stop · 2h 20m
€395
Book
Oct 22 – Nov 3
Thai AirAsia · 1 stop · 2h 20m
€421
Book
Nov 10 – Nov 10
THAI Airways · 1 stop · 2h 15m
€445
Book
Weather in Vientiane
Mon
🌦️
32°
23°
💧2%
Tue
🌧️
32°
24°
💧49%
Wed
🌦️
31°
23°
💧49%
Thu
🌦️
31°
24°
💧49%
Fri
🌦️
31°
25°
💧27%
Sat
🌤️
31°
24°
💧20%
Sun
🌦️
32°
25°
💧15%
In Sep, Vientiane typically sees ~31°C daytime highs and 23 rainy days.
Where to stay in Vientiane 3★+ hotels from €20/night (37 hotels sampled, ~3 weeks out).
Phonepaseuth Guesthouse
hotel · Vientiane
from €20/night ★ 3
Viryla Boutique Hotel
hotel · Vientiane
from €23/night ★ 3
Mali Namphu Hotel
hotel · Vientiane
from €24/night ★ 3
Good to know Time difference Same time zone
Time in the air 2h 15m
Things to do in Vientiane Top-rated tours and tickets from €11 — 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 2026-10-12. Some links earn Stayonomy a commission at no cost to you.
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