Trip.com
US$120Collected
Compare pricesFlights from Chiang Mai to Seoul
CNX → SEL · compared across 9 travel sites
- Flight time
- from 4h 55m nonstop
- Distance
- 3,382 km
- Typical one-way
- US$70
Compare Chiang Mai → Seoul prices on 9 travel sites
Add your dates and open the same search on each travel site to find the cheapest fare. You book directly with the provider.
Booking.com
US$140Collected
Compare pricesAgoda
Flight + hotel bundles that can beat booking separately.
Compare pricesKayak
US$70Collected
Compare pricesKiwi.com
Virtual interlining specialist that mixes airlines creatively.
Compare pricesExpedia
Global OTA giant with package deals and member prices.
Compare pricesSkyscanner
The benchmark flight metasearch — “search everywhere”.
Compare pricesPriceline
Long-standing US OTA with express deals for flights.
Compare pricesMomondo
Kayak-family metasearch known for winning price comparisons.
Compare pricesFares auto-collected from partner search results on 2026-09-03 (one-way, economy).
Typical prices & when to book
Lowest fare collected
US$70
Kayak
Auto-collected from Kayak search results on 2026-09-03 (one-way, economy). Fares change constantly — click “Compare prices” for live fares.
Chiang Mai → Seoul route guide
The Chiang Mai (CNX) to Seoul (SEL) route covers roughly 3,382 km, with an estimated flight time of about 4h 55m for a nonstop service. Compare the travel sites above to find the best fare for your dates — availability and prices differ between them.
Departures use Chiang Mai; arrivals use Seoul Incheon. Both airports handle the route with regular schedules, so same-day connections and day trips are realistic options.
Chiang Mai → Seoul flight FAQ
How long is the flight from Chiang Mai to Seoul?
Nonstop flights from Chiang Mai to Seoul take about 4h 55m. The route covers approximately 3,382 km.
How do I find the cheapest flights from Chiang Mai to Seoul?
Compare the same dates across the 9 travel sites listed above — their fares differ by provider. Midweek departures, flexible dates and booking a few weeks ahead usually help.
Are there direct flights from Chiang Mai to Seoul?
Direct availability changes by season and carrier. The estimated nonstop flight time is about 4h 55m; one-stop options are widely available.