Chiang Mai to Seoul

1 ways to travelfastest 5h 15mfly from €117
Photo: Yohan Cho / Unsplash

Departure-day prices · December 2025 Chiang Mai → Seoul

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Return-day prices · December 2025 Seoul → Chiang Mai

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Best time to visit Seoul — climate

Jan: ~2°C daytime, 4 rainy days JanFeb: ~2°C daytime, 2 rainy days FebMar: ~12°C daytime, 8 rainy days 12° MarApr: ~17°C daytime, 6 rainy days 17° AprMay: ~22°C daytime, 9 rainy days 22° MayJun: ~28°C daytime, 13 rainy days 28° JunJul: ~32°C daytime, 14 rainy days 32° JulAug: ~31°C daytime, 16 rainy days 31° AugSep: ~26°C daytime, 11 rainy days 26° SepOct: ~19°C daytime, 14 rainy days 19° OctNov: ~12°C daytime, 2 rainy days 12° NovDec: ~3°C daytime, 9 rainy days Dec

Best value: Sep — fares from €117 and ~26°C daytime.

Flights from Chiang Mai to Seoul start around €117 (direct flights available). Range seen recently: €117–129, based on 4 fares found by travellers.

Fly (from €117)
5h 15mduration
€117–129recent fares
Book
Cheapest cached fares Chiang Mai → Seoul; direct flights available (e.g. ZE). · Based on 4 fares found by travellers in the last 48h

Cheapest round trips to Seoul

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

Aug 26 – Aug 30 Thai Vietjet Air · 1 stop · 6h 55m €236 Book
Aug 25 – Aug 30 Thai Vietjet Air · 1 stop · 6h 55m €236 Book

Weather in Seoul

Fri ☀️ 35° 25° 💧24%
Sat ☁️ 33° 25° 💧97%
Sun ☁️ 30° 25° 💧21%
Mon ☁️ 30° 22° 💧7%
Tue ☀️ 31° 20° 💧2%
Wed 🌤️ 31° 19° 💧6%
Thu ☁️ 34° 21° 💧17%

In Dec, Seoul typically sees ~3°C daytime highs and 0 rainy days.

Where to stay in Seoul

3★+ hotels from €98/night (39 hotels sampled, ~3 weeks out).

Arirang Hill Hotel Dongdaemun hotel · Seoul
from €98/night★ 4
Ocloud Hotel Gangnam hotel · Seoul
from €102/night★ 4
Klaven Hotel Myeongdong City Hall hotel · Seoul
from €115/night★ 3

Good to know

Time difference+2h
Time in the air6h 55m

Things to do in Seoul

Top-rated tours and tickets from €56 — book ahead for the popular ones.

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

About Seoul

Seoul (서울) is the capital of South Korea. With a population of over 9 million (with over 20 million in the wider metropolitan area), Seoul is by far South Korea's largest city and one of East Asia's financial and cultural centers. A fascinating blend of ancient traditions and cutting-edge digital technology, home to endless street food vendors and vast nightlife districts, an extraordinarily high-pressure educational system and serene Buddhist temples, a dynamic trend-setting youth culture and often crushing conformism, extraordinary architectu…

Read the full Seoul guide

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

Round out the trip

Popular from Chiang Mai

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 2026-08-07. Some links earn Stayonomy a commission at no cost to you.