--- title: "Seoul (ICN) to Chiang Mai (CNX) flights: who flies it" description: "Eastar Jet, Korean Air, Jeju Air and 3 more airlines fly nonstop from ICN to CNX, about 21 flights a week. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/icn-cnx" url: "https://2lnr.com/routes/icn-cnx.md" date_modified: "2026-10-18T05:10:47Z" --- # Seoul to Chiang Mai (ICN-CNX): nonstop flights and who flies them Eastar Jet, Korean Air, Jeju Air, Trinity Airways, and Air Busan fly nonstop between Seoul (ICN) and Chiang Mai (CNX), roughly 21 times a week. The timetable below shows the nonstop scheduled at 5h 25m to 6h 20m for the 2,101 miles. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 22, 2026. See ICN to CNX on the interactive map [Get started free](https://2lnr.com/login) 21 Flights a week, 4-week average 5h 25m to 6h 20m Scheduled flight time 2,101 mi Nonstop distance Free To get started ## Seoul to Chiang Mai flight schedule Scheduled nonstop departures for ICN to CNX starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Seoul (ICN) to Chiang Mai (CNX) | Date | Flight | Airline | Departs ICN | Arrives CNX | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | LJ 9 | Jin Air | 17:20 | 20:45 | 5h 25m | Boeing 737 MAX 8 | | Thu, Oct 22 | 7C 2515 | Jeju Air | 18:10 | 22:00 | 5h 50m | Boeing 737 MAX 8 | | Thu, Oct 22 | ZE 517 | Eastar Jet | 18:30 | 22:30 | 6h | Boeing 737-800 | | Thu, Oct 22 | BX 7475 | Air Busan | 19:55 | 23:50 | 5h 55m | Airbus A321 | | Fri, Oct 23 | LJ 9 | Jin Air | 17:20 | 20:45 | 5h 25m | Boeing 737 MAX 8 | | Fri, Oct 23 | 7C 2515 | Jeju Air | 18:10 | 22:00 | 5h 50m | Boeing 737 MAX 8 | | Sat, Oct 24 | LJ 9 | Jin Air | 17:20 | 20:45 | 5h 25m | Boeing 737 MAX 8 | | Sat, Oct 24 | 7C 2515 | Jeju Air | 18:10 | 22:00 | 5h 50m | Boeing 737 MAX 8 | | Sat, Oct 24 | ZE 517 | Eastar Jet | 18:30 | 22:10 | 5h 40m | Boeing 737-800 | | Sat, Oct 24 | BX 7475 | Air Busan | 19:55 | 23:50 | 5h 55m | Airbus A321 | | Sun, Oct 25 | LJ 27 | Jin Air | 16:45 | 20:40 | 5h 55m | Boeing 737 MAX 8 | | Sun, Oct 25 | ZE 5171 | Eastar Jet | 17:25 | 20:50 | 5h 25m | Boeing 737-800 | | Sun, Oct 25 | KE 683 | Korean Air | 18:45 | 22:45 | 6h | [Airbus A330-300](https://2lnr.com/seatmaps/ke/a330-300.md) | | Sun, Oct 25 | BX 9029 | Air Busan | 19:00 | 23:10 | 6h 10m | Airbus A321 | | Sun, Oct 25 | 7C 2515 | Jeju Air | 19:25 | 23:45 | 6h 20m | Boeing 737-800 | | Mon, Oct 26 | ZE 517 | Eastar Jet | 17:25 | 20:50 | 5h 25m | Boeing 737-800 | | Mon, Oct 26 | KE 683 | Korean Air | 18:45 | 22:45 | 6h | Airbus A330-300 | | Mon, Oct 26 | 7C 2515 | Jeju Air | 19:25 | 23:45 | 6h 20m | Boeing 737-800 | | Tue, Oct 27 | ZE 517 | Eastar Jet | 17:25 | 21:20 | 5h 55m | Boeing 737-800 | | Tue, Oct 27 | KE 683 | Korean Air | 18:45 | 22:45 | 6h | Airbus A330-300 | | Wed, Oct 28 | ZE 517 | Eastar Jet | 17:25 | 20:50 | 5h 25m | Boeing 737-800 | | Wed, Oct 28 | KE 683 | Korean Air | 18:45 | 22:45 | 6h | Airbus A330-300 | | Wed, Oct 28 | BX 9029 | Air Busan | 19:00 | 23:10 | 6h 10m | Airbus A321 | Showing all 23 scheduled ICN to CNX departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every ICN to CNX date on the interactive map ## Aircraft on the Seoul to Chiang Mai nonstop In the schedule table on this page, Eastar Jet flies the Boeing 737-800. Jeju Air flies the Boeing 737 MAX 8 and the Boeing 737-800. Jin Air flies the Boeing 737 MAX 8. Air Busan flies the Airbus A321. Korean Air flies the [Airbus A330-300](https://2lnr.com/seatmaps/ke/a330-300.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## The full ICN to CNX nonstop schedule This page carries the full ICN to CNX nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each ICN to CNX nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See ICN to CNX on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Seoul to Chiang Mai nonstop Carriers operating ICN to CNX nonstop in the current schedule. - [Eastar Jet (ZE) route map](https://2lnr.com/routes/airlines/ze.md)\ [The aircraft ZE flies](https://2lnr.com/seatmaps/ze.md) - [Korean Air (KE) route map](https://2lnr.com/routes/airlines/ke.md)\ [The aircraft KE flies](https://2lnr.com/seatmaps/ke.md) - [Jeju Air (7C) route map](https://2lnr.com/routes/airlines/7c.md)\ [The aircraft 7C flies](https://2lnr.com/seatmaps/7c.md) - [Trinity Airways (TW) route map](https://2lnr.com/routes/airlines/tw.md)\ [The aircraft TW flies](https://2lnr.com/seatmaps/tw.md) - [Air Busan (BX) route map](https://2lnr.com/routes/airlines/bx.md)\ [The aircraft BX flies](https://2lnr.com/seatmaps/bx.md) - [Jin Air (LJ) route map](https://2lnr.com/routes/airlines/lj.md)\ [The aircraft LJ flies](https://2lnr.com/seatmaps/lj.md) See ICN to CNX on the interactive map → ## Frequently asked questions about ICN to CNX **How long is the flight from Seoul (ICN) to Chiang Mai (CNX)?** Scheduled flight times from Seoul (ICN) to Chiang Mai (CNX) run from 5h 25m to 6h 20m across the departures in the schedule table on this page. The nonstop covers about 2,101 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from ICN to CNX?** Eastar Jet, Korean Air, Jeju Air, Trinity Airways, and Air Busan fly ICN to CNX nonstop. **How many flights a week are there from ICN to CNX?** About 21 nonstop flights a week run between Seoul (ICN) and Chiang Mai (CNX) in the current schedule, operated by Eastar Jet, Korean Air, Jeju Air, Trinity Airways, and Air Busan. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from ICN to CNX depart?** Scheduled ICN to CNX nonstops in the next 7 days with service leave between 16:45 and 19:55, local time at Seoul. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate ICN to CNX nonstop?** In the schedule table on this page, ICN to CNX nonstops fly as ZE 517 and ZE 5171 on Eastar Jet; 7C 2515 on Jeju Air; BX 7475 and BX 9029 on Air Busan; KE 683 on Korean Air; and LJ 9 and LJ 27 on Jin Air. The table lists each departure by date with its times and aircraft. **Where do I find the ICN to CNX schedule?** The page carries the full ICN to CNX nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [CNX to ICN nonstop flights](https://2lnr.com/routes/cnx-icn.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Seoul (ICN)](https://2lnr.com/routes/icn.md), or [every route from Chiang Mai (CNX)](https://2lnr.com/routes/cnx.md). - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## See the full ICN to CNX nonstop schedule Every scheduled departure on this route, with who flies it. [Get started free](https://2lnr.com/login)