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Cheap flights from Seoul to Chiang Mai

One-way from $124, found by travellers in the last 7 days. The live price is checked when you book.

Departure
Return
Prices for nearby dates
Mon, Oct 26Any priceTue, Oct 27Any priceWed, Oct 28Any priceThu, Oct 29$124Fri, Oct 30$163Sat, Oct 31Any priceSun, Nov 1Any priceMon, Nov 2Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.

Cheapest
$124
Air Busan, flight BX 9029Found yesterday, 1 adult
Check live price
7:00pmSeoulThu, Oct 29
Travel time 6h 10m, nonstopICNCNX
11:10pmChiang MaiThu, Oct 29
$125
Air Busan, flight BX 9029Found 6 days ago, 1 adult
Check live price
7:00pmSeoulSat, Nov 7
Travel time 6h 10m, nonstopICNCNX
11:10pmChiang MaiSat, Nov 7
$139
Air Busan, flight BX 9029Found yesterday, 1 adult
Check live price
7:00pmSeoulSat, Nov 14
Travel time 6h 10m, nonstopICNCNX
11:10pmChiang MaiSat, Nov 14
$141
Jeju Air, flight 7C 2515Found 2 days ago, 1 adult
Check live price
7:15pmSeoulMon, Nov 16
Travel time 6h 20m, nonstopICNCNX
11:35pmChiang MaiMon, Nov 16
$145
Air Busan, flight BX 9029Found 4 days ago, 1 adult
Check live price
7:00pmSeoulSun, Dec 6
Travel time 6h 10m, nonstopICNCNX
11:10pmChiang MaiSun, Dec 6

Round trips

The cheapest return tickets found recently, price for the whole trip.

Plan the rest of the trip

  • Mobile data in ThailandTravel eSIM from $4, installed before you fly.
    Compare plans
  • Getting from the airportTransfers and car hire in Chiang Mai, booked ahead at a fixed price.
    See options
  • Things to do in Chiang MaiPopular tours from $30 per person.
    See ideas
  • Travel insuranceTravel insurance quotes for Thailand from EKTA; check what each policy covers.
    Get a quote
  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
    Check

Price calendar

The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.

October 2026

MoTuWeThFrSaSu12345678910111213141516171819202122232425–26–27–28–29$12430$16331–

November 2026

MoTuWeThFrSaSu1–2–3–4–5$1996–7$1258–9–10–11–12–13$15314$13915$15916$14117$19418$18219$16120$15421$17022$16523–24–25–26–27–28–29$15730–

December 2026

MoTuWeThFrSaSu1$1902–3$1614–5$1906$1457–8–9–10–11–12–13–14–15–16–17–18–19$16220–21–22–23–2425262728293031
$145 or lessGreen: the cheapest fifth of fares on this route. Lowest in these 60 days: Oct 29, $124.

Lowest fares by month

In the fares found this week, October has the lowest: from $124 one-way, against $201 in January 2027. Pick a month to see its cheapest date.

  1. Oct$124
  2. Nov$125
  3. Dec$145
  4. Jan$201
  5. Febno fares yet
  6. Mar$197
  7. Aprno fares yet
  8. Mayno fares yet
  9. Jun$199
  10. Julno fares yet
  11. Augno fares yet
  12. Sepno fares yet
$0$100$200$300$124OctNovDecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$124Thu, Oct 29Nonstop
November$125Sat, Nov 7Nonstop
December$145Sun, Dec 6Nonstop
January 2027$201Tue, Jan 52 stops
February 2027—
March 2027$197Wed, Mar 311 stop
April 2027—
May 2027—
June 2027$199Tue, Jun 82 stops
July 2027—
August 2027—
September 2027—

Fares and weather by month

The lowest one-way fare found for each month, next to the weather in Chiang Mai. Average daily high and low and monthly precipitation, 1991–2020 normals.

Oct2026NovDecJan2027FebMarAprMayJunJulAugSep
Lowest fare$124$125$145$201–$197––$199–––
High °C32°31°29°30°33°35°37°35°33°32°32°32°
Low °C23°20°17°16°17°20°23°24°25°24°24°24°
Precipitation mm124411411102054168118149223207

Source: Chiang Mai on Wikipedia, CC BY-SA 4.0.

Questions travellers ask

What is the cheapest month to fly from Seoul to Chiang Mai?

In the fares found this week, October has the lowest: from $124 one-way, against $201 in January 2027.

What is the weather in Chiang Mai in October?

In October, the cheapest month to fly, the average daily high in Chiang Mai is 32 °C and the low 23 °C.

Are there direct flights from Seoul to Chiang Mai?

Yes. Recent fares include nonstop flights with Air Busan and Jeju Air.

How long is the flight from Seoul to Chiang Mai?

A nonstop flight takes about 6h 10m. The distance is 2,100 mi.

Which day of the week is cheapest to fly?

In the fares we have, Friday departures are the cheapest, with a typical lowest fare of $154. Tuesday is the priciest at about $197.

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