Chiang Mai to Seoul

1 ways to travelfastest 5h 00mfly from €121
Photo: Yohan Cho / Unsplash

How the cheapest fare moved

Sep 5: €111 €111 Aug 30 Sep 5 low €111 · high €141

Departure-day prices · May 2030 Chiang Mai → Seoul

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Return-day prices · May 2030 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: Oct — fares from €121 and ~19°C daytime.

Flights from Chiang Mai to Seoul start around €121 (direct flights available). Range seen recently: €121–141, based on 8 fares found by travellers.

Fly (from €121)
5h 00mduration
€121–141recent fares
Book
Cheapest cached fares Chiang Mai → Seoul; direct flights available (e.g. BX). · Based on 8 fares found by travellers in the last 48h

Cheapest round trips to Seoul

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

Oct 8 – Oct 15 Air Busan · Direct · 5h 25m €238 Book
Oct 15 – Oct 22 Air China · 1 stop · 6h 40m €303 Book
Nov 8 – Nov 15 Air China · 1 stop · 6h 25m €309 Book
Jan 3 – Jan 4 China Eastern · 2 stops · 9h 10m €346 Book
Dec 30 – Jan 5 Thai AirAsia · 2 stops · 7h 15m €423 Book
Dec 31 – Jan 5 Thai Lion Air · 2 stops · 7h 10m €442 Book
Dec 30 – Jan 4 China Southern Airlines · 1 stop · 5h 50m €449 Book
Dec 31 – Jan 4 China Southern Airlines · 1 stop · 5h 45m €449 Book

Weather in Seoul

Sun 🌤️ 27° 19° 💧0%
Mon ☀️ 29° 18° 💧0%
Tue ☀️ 29° 17° 💧6%
Wed ☁️ 26° 18° 💧2%
Thu ☁️ 23° 16° 💧4%
Fri ☁️ 23° 15° 💧12%
Sat ☁️ 26° 18° 💧14%

Where to stay in Seoul

3★+ hotels from €114/night (40 hotels sampled, ~3 weeks out).

Arirang Hill Hotel Dongdaemun hotel · Seoul
from €114/night★ 4
Shilla Stay Mapo Hongdae hotel · Seoul
from €119/night★ 4
Shilla Stay Seodaemun Seoul Station hotel · Seoul
from €122/night★ 4

Good to know

Time difference+2h
Time in the air5h 25m

Things to do in Seoul

Top-rated tours and tickets from €63 — 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 2026-09-05. Some links earn Stayonomy a commission at no cost to you.