Book Flights from Seoul to Chiang Mai with Thai Airways from KRW685,100

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Find the Best Time and Daily Ticket Prices for Seoul to Chiang Mai

Oct 2026
FromKRW702,900*
Updated: 53 minutes ago
Flight Type Round Trip/Economy
Nov 2026
FromKRW1,013,300*
Updated: 53 minutes ago
Flight Type Round Trip/Economy
Dec 2026
FromKRW945,600*
Updated: 53 minutes ago
Flight Type Round Trip/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label KRW702.9K
cmp-daily-histogram-bars-legend-max-price-aria-label KRW1.5M
Displaying fares for October-2026
  • ICN–CNX: cmp-view-offers-disclaimer. Find Offers
    26

    Mo

    OCT

  • ICN–CNX, 27/10/2026 – 29/10/2026: From KRW1,412,500
    27

    Tu

  • ICN–CNX, 28/10/2026 – 01/11/2026: From KRW1,520,300
    28

    We

  • ICN–CNX, 29/10/2026 – 08/11/2026: From KRW702,900
    29

    Th

  • ICN–CNX, 30/10/2026 – 11/11/2026: From KRW931,500
    30

    Fr

  • ICN–CNX, 31/10/2026 – 02/11/2026: From KRW1,065,400
    31

    Sa

  • ICN–CNX, 01/11/2026 – 11/11/2026: From KRW1,084,300
    01

    Su

    NOV

  • ICN–CNX, 02/11/2026 – 02/12/2026: From KRW1,142,900
    02

    Mo

  • ICN–CNX, 03/11/2026 – 24/11/2026: From KRW1,142,900
    03

    Tu

  • ICN–CNX, 04/11/2026 – 14/11/2026: From KRW1,277,600
    04

    We

  • ICN–CNX, 05/11/2026 – 19/11/2026: From KRW1,218,100
    05

    Th

  • ICN–CNX, 06/11/2026 – 09/11/2026: From KRW1,142,900
    06

    Fr

  • ICN–CNX, 07/11/2026 – 16/11/2026: From KRW1,142,900
    07

    Sa

  • ICN–CNX, 08/11/2026 – 08/12/2026: From KRW1,277,600
    08

    Su

  • ICN–CNX, 09/11/2026 – 09/12/2026: From KRW1,142,900
    09

    Mo

  • ICN–CNX, 10/11/2026 – 17/11/2026: From KRW1,142,900
    10

    Tu

  • ICN–CNX, 11/11/2026 – 02/12/2026: From KRW1,142,900
    11

    We

  • ICN–CNX, 12/11/2026 – 19/11/2026: From KRW1,218,100
    12

    Th

  • ICN–CNX, 13/11/2026 – 24/11/2026: From KRW1,142,900
    13

    Fr

  • ICN–CNX, 14/11/2026 – 14/12/2026: From KRW1,218,100
    14

    Sa

  • ICN–CNX, 15/11/2026 – 01/12/2026: From KRW1,277,600
    15

    Su

  • ICN–CNX, 16/11/2026 – 16/12/2026: From KRW1,142,900
    16

    Mo

  • ICN–CNX, 17/11/2026 – 08/12/2026: From KRW1,057,000
    17

    Tu

  • ICN–CNX, 18/11/2026 – 19/11/2026: From KRW1,084,300
    18

    We

  • ICN–CNX, 19/11/2026 – 01/12/2026: From KRW1,142,900
    19

    Th

  • ICN–CNX, 20/11/2026 – 02/12/2026: From KRW1,142,900
    20

    Fr

  • ICN–CNX, 21/11/2026 – 05/12/2026: From KRW1,277,600
    21

    Sa

  • ICN–CNX: cmp-view-offers-disclaimer. Find Offers
    22

    Su

  • ICN–CNX, 23/11/2026 – 01/12/2026: From KRW1,391,100
    23

    Mo

  • ICN–CNX, 24/11/2026 – 15/12/2026: From KRW1,277,600
    24

    Tu

  • ICN–CNX, 25/11/2026 – 02/12/2026: From KRW1,057,000
    25

    We

    • RangeKRW702,900-KRW1,520,300

    *Fares and availability are based on round trip searches for 1 passenger (1 adult) in Economy class in the last 48 hours. Fares are inclusive of tax and surcharges, and subject to availability.

    Best Deals for Seoul to Chiang Mai Flights on Thai Airways

    KRW
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    Best Deals for Seoul to Chiang Mai Flights on Thai Airways
    From
    To
    Fare Type
    Dates
    Price
    Seoul (ICN)Chiang Mai (CNX)​Round trip
    /
    Economy    		13/02/2027 - 21/02/2027

    From

    KRW685,100

    Updated: 53 minutes ago

    Seoul (ICN)Chiang Mai (CNX)​Round trip
    /
    Economy    		26/03/2027 - 03/04/2027

    From

    KRW685,100

    Updated: 53 minutes ago

    Seoul (ICN)Chiang Mai (CNX)​Round trip
    /
    Economy    		26/03/2027 - 04/04/2027

    From

    KRW685,100

    Updated: 53 minutes ago

    Seoul (ICN)Chiang Mai (CNX)​Round trip
    /
    Economy    		03/03/2027 - 13/03/2027

    From

    KRW685,100

    Updated: 53 minutes ago

    Seoul (ICN)Chiang Mai (CNX)​Round trip
    /
    Economy    		26/03/2027 - 05/04/2027

    From

    KRW685,100

    Updated: 53 minutes ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at the time of booking.

    Popular Business Class Flight Deals from Seoul to Chiang Mai

    KRW
    *Fares displayed have been collected within the last 24hrs and may no longer be available at the time of booking.

    Book Flights from Seoul to Chiang Mai with Thai Airways

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