$406 Cheap Thai Airways International flights Seoul (ICN) to Chiang Rai (CEI)

View $406 flight on Wed, Sep 3, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$406 Cheap Thai Airways International flights Seoul (ICN) to Chiang Rai (CEI)

Prices were available within the past 7 days and start at $406 for one-way flights and $736 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai Airways International
Wed, Sep 3 - Sat, Sep 13
ICN
Seoul
CEI
Chiang Rai
$736 Roundtrip, found 2 hours ago
$736
Roundtrip
found 2 hours ago
Select Thai Airways International flight, departing Wed, Sep 3 from Seoul to Chiang Rai, returning Sat, Sep 13, priced at $736 found 2 hours ago
Flights from Seoul (ICN) to Chiang Rai (CEI)
Origin airport
Incheon Intl.
Destination airport
Chiang Rai Intl.
Airlines serving
Thai Airways International
Popular airline
Thai Airways International
Distance
2000 mi

Explore a world of travel with Expedia

*Available to One Key members.