Korean Air – Asiana Airlines NW26 International Service Changes – 03SEP26
Published at 2200PDT 02SEP26 / 0500GMT 03SEP26
Korean Air and Asiana Airlines this week continues to adjust planned international operations for Northern winter 2026/27 season, as both carriers prepare for operational integration from 17DEC26, including cross-fleet service.
Previously noted on AeroRoutes, as Asiana Airlines and Korean Air’s A350-900 shares the same configuration (C28Y283), AeroRoutes is unable to identify the A350 in Asiana or Korean Air livery for service from 17DEC26.
Additional information regarding Seoul Incheon – Tokyo Narita route is being highlighted at the bottom of this post, as this route overtakes Taipei Taoyuan – Hong Kong’s top position of world’s busiest international route, in terms of available seats offered based on OAG schedules analyser data as of 30AUG26, for the second time in 2026.
Following routes are operated under Korean Air’s KE-coded flight numbers
Busan – Nagoya eff 25OCT26 737-900ER replaces initially filed MAX 8, 1 daily
Busan – Shanghai Pu Dong eff 25OCT26 A321neo replaces initially filed 737-900ER, 1 daily
Busan – Taipei Taoyuan eff 25OCT26 1 daily A321neo service maintained, instead of initially filed 737-900ER
Busan – Tokyo Narita eff 25OCT26 737-900ER replaces initially filed MAX 8, 2 daily
Jeju – Beijing Capital eff 25OCT26 737 MAX 8 replaces initially filed -900ER, 4 weekly
Jeju – Tokyo Narita eff 29OCT26 Increase from 4 to 5 weekly. 737-900 continues to operate this route, instead of initially filed MAX 8
Seoul Gimpo – Beijing Capital eff 25OCT26 1 daily A321neo service maintained, instead of initially filed 737-900ER
Seoul Gimpo – Tokyo Haneda eff 25OCT26 1 of 3 daily KE2105/2106 A330-300 service maintained, instead of initially filed A321neo
Seoul Incheon – Aomori eff 25OCT26 5 weekly service maintained instead of initially filed 3 weekly. 737 MAX 8 replaces initially filed A321neo
Seoul Incheon – Auckland eff 17DEC26 A350-900 replaces 787-10, 1 daily
Seoul Incheon – Bangkok Suvarnabhumi 25OCT26 – 16DEC26 2 of 4 daily KE651/652 and KE653/654 787-10 replaces initially filed 787-9
Seoul Incheon – Beijing Capital
* KE851/852 eff 25OCT26 737 MAX 8 replaces initially filed -900ER
* KE855/856 eff 25OCT26 4 weekly service 737 MAX 8 replaces initially filed -900ER
* KE863/864 eff 25OCT26 A321neo replaces initially filed 737-900ER
Seoul Incheon – Brisbane eff 20DEC26 Increase from 4 to 5 weekly, 787-9 (Previously reported)
Seoul Incheon – Busan Initially filed 737 MAX 8 replaced by various aircraft. This route is served as international connection (note selected dates may not see operational aircraft updated)
* KE1401/1402 737-900ER
* KE1403/1404 737-900ER
* KE1405/1406 A321neo
* KE1407/1408 A321neo
* KE1406/1410 A321neo
Seoul Incheon – Cam Ranh/Nha Trang 25OCT26 – 28FEB27 A330-300 replaces 787-9, 1 daily
Seoul Incheon – Cebu eff 25OCT26 Initially filed A330-300 replaced by 777-300ER (Asiana 777-200ER from 17DEC26, Korean Air A330-300 from 01MAR27)
Seoul Incheon – Da Nang eff 25OCT26 1 of 2 daily KE457/458 A330-300 replaces 787-9
Seoul Incheon – Daegu eff 25OCT26 1 daily 737 MAX 8 replaces initially filed A220-300. This route is served as international connection)
Seoul Incheon – Dalian eff 25OCT26 A321neo replaces initially filed A330-300, 1 daily
Seoul Incheon – Dayong eff 27OCT26 737-800 replaces initially filed -900ER, 2 weekly
Seoul Incheon – Delhi eff 25OCT26 Increase from 4 to 7 weekly, 787-9
Seoul Incheon – Denpasar Initially filed 787-9 replaced by following
* KE431/432 eff 17DEC26 A350-900
* KE433/434 eff 25OCT26 787-10 (A350-900 from 17DEC26)
Seoul Incheon – Fukuoka
* KE787/788 eff 25OCT26 Initially filed A330-300 replaced by 787-10 (A350-900 from 18DEC26)
* KE781/782 eff 25OCT26 Initially filed 737 MAX 8 replaced by Korean Air A321neo (Asiana A321 from 17DEC26)
Seoul Incheon – Fuzhou eff 25OCT26 A321neo replaces 737-900ER, 4 weekly
Seoul Incheon – Guam eff 25OCT26 2 daily 777-300, replacing 1 daily each 787-9 and A330-300
Seoul Incheon – Hangzhou eff 25OCT26 3 weekly service maintained instead of initially filed 2. A321neo replaces 737-900ER
Seoul Incheon – Hanoi eff 25OCT26 1 of 2 daily KE441/442 A330-300 replaces initially filed A321neo (Overall 1 daily each A330-300 and 777-300ER)
Seoul Incheon – Hefei eff 27OCT26 737-800 replaces initially filed -900ER, 3 weekly
Seoul Incheon – Hiroshima eff 23DEC26 1 daily Korean Air A321neo, new route (Previously reported)
Seoul Incheon – Ho Chi Minh City eff 25OCT26 1 of 3 daily KE471/472 A330-300 replaces initially filed A321neo
Seoul Incheon – Hong Kong
* KE2001/2002 eff 25OCT26 A330-300 replaces initially filed 737-900ER
* KE2005/2006 eff 25OCT26 A321neo replaces initially filed 737-900ER
* KE2011/2012 eff 25OCT26 Initially filed A330-300 replaced by 787-10 (A350-900 from 17DEC26)
Seoul Incheon – Honolulu eff 25OCT26 12 weekly service maintained, instead of 7 weekly. 787-9/-10 operating (14 weekly 07DEC26 – 28FEB27)
Seoul Incheon – Istanbul eff 18DEC26 Asiana 777-200ER replaces 787-9, 4 weekly
Seoul Incheon – Jakarta eff 17DEC26 787-10 replaces 777-300ER, 1 daily
Seoul Incheon – Kagoshima 25OCT26 – 15DEC26 Increase from 7 to 11 weekly, A321neo/737 MAX 8
Seoul Incheon – Komatsu eff 25OCT26 1 daily A220-300 service maintained, instead of initially filed 3 weekly
Seoul Incheon – Las Vegas eff 01FEB27 A350-900 replaces 777-300ER, 1 daily
Seoul Incheon – Los Angeles
* KE011/012 Initially filed 777-300ER replaced by following
03NOV26 – 15DEC26 388 Day x357 74H Day 357
16DEC26 – 18DEC26 74H Daily
19DEC26 – 31DEC26 388 Day 26 (Asiana) 74H Day x26
eff 10JAN27 74H Daily (Overall 2 daily 747-8I)
* KE017/018 747-8I replaces initially filed 777-300ER (Previously reported)
Seoul Incheon – Madrid eff 17DEC26 A350-900 replaces 787-10, 4 weekly
Seoul Incheon – Manila eff 25OCT26 1 of 3 daily KE625/626 Day x137 A330-300 replaces A321neo (MNL departs following day)
Seoul Incheon – Melbourne 18DEC26 – 14MAR27 3 weekly 787-9, Korean Air assumes Asiana seasonal service (Last served until March 2013; Previously reported)
Seoul Incheon – Milan Malpensa eff 25OCT26 Initially filed 787-9 replaced by 787-10, 4 weekly (A350-900 from 18DEC26)
Seoul Incheon – Nagoya
* KE745/746 25OCT26 – 31DEC26 737-800 replaces MAX 8
* KE749/750 eff 25OCT26 Initially filed 737 MAX 8 replaced by 787-10 (A350-900 from 17DEC26)
Seoul Incheon – Nanjing eff 25OCT26 737-800 replaces initially filed -900ER, 4 weekly
Seoul Incheon – New York JFK eff 25OCT26 KE081/082 A380 service maintained, replacing 777-300ER (Previously reported)
Seoul Incheon – Niigata eff 25OCT26 1 daily service maintained, instead of initially filed 3 weekly, 737 MAX 8
Seoul Incheon – Oita eff 25OCT26 4 weekly A321neo, service resumption since October 2019
KE2177 ICN0915 – 1050OIT 32Q x246
KE2178 OIT1200 – 1345ICN 32Q x246
Seoul Incheon – Okinawa eff 25OCT26 1 daily A321neo service maintained, instead of initially filed 737 MAX 8
Seoul Incheon – Osaka Kansai Aircraft changes on 4 of 5 daily flights
* KE723/724 eff 25OCT26 787-10 replaces A330-300
* KE727/728 eff 25OCT26 Initially filed 737 MAX 8 replaced by A321neo (Asiana A321ceo from 17DEC26)
* KE725/726 eff 25OCT26 Initially filed 737 MAX 8 replaced by 737-900ER (Asiana A330-300 from 17DEC26)
* KE737/738 eff 17DEC26 Asiana A321neo replaces 737 MAX 8
Seoul Incheon – Prague 26OCT26 – 16DEC26 787-10 replaces -9, 4 weekly
Seoul Incheon – Qingdao
* KE841/842 eff 25OCT26 A321neo replaces initially filed 737-900ER
* KE843/844 eff 25OCT26 A321neo/737 MAX 8 replaces initially filed 737-900ER
Seoul Incheon – Sapporo New Chitose Initially filed 737 MAX 8 replaced by following
* KE765/766 eff 25OCT26 777-300
* KE769/770 eff 25OCT26 A321neo
Seoul Incheon – Shanghai Pu Dong
* KE881/882 eff 25OCT26 Initially filed 737-900ER replaced by 777-300ER (A350-900 from 17DEC26)
* KE887/888 eff 25OCT26 Initially filed A330-300 replaced 787-10 (A350-900 from 17DEC26)
* KE891/892 eff 25OCT26 A321neo replace initially filed 737-900ER
Seoul Incheon – Shenyang Initially filed 737-900ER replaced by following
* KE831/832 eff 25OCT26 A330-300
* KE833/834 eff 25OCT26 A321neo
Seoul Incheon – Shenzhen eff 25OCT26 A330-300 replaces initially filed 737-900ER, 1 daily
Seoul Incheon – Singapore
* KE645/646 eff 25OCT26 Initially filed 787-9 replaced by 777-300ER (Asiana 777-200ER from 01FEB27)
* KE647/648 eff 25OCT26 Initially filed 787-9 replaced by 777-300ER (This flight is suspended 04JAN27 – 31JAN27, as overall reduced from 3 to 2 daily. The suspension was already filed but not covered on AeroRoutes)
Seoul Incheon – Taichung eff 25OCT26 Seasonal service resumption, 1 daily A220-300 (Previously reported)
Seoul Incheon – Taipei Taoyuan
* KE2025/2026 eff 25OCT26 787-10 replaces initially filed A330-300, 1 daily
* KE2029/2030 eff 25OCT26 A330-300 replaces initially filed 737-900ER, 1 daily
Seoul Incheon – Tianjin eff 25OCT26 737-900 replaces initially filed -900ER, 1 daily
Seoul Incheon – Tokyo Haneda eff 25OCT26 Initially filed 737 MAX 8 replaced by A350-900 (777-300ER from 01FEB27)
Seoul Incheon – Tokyo Narita
* KE703/704 eff 25OCT26 Initially filed A330-300 replaced by 787-10 (A350-900 from 17DEC26)
* KE713/714 eff 17DEC26 737-900ER replaces MAX 8
* KE707/708 eff 25OCT26 Overall 5th daily flight maintained with A220-300
* KE705/706 eff 25OCT26 A321neo replaces initially filed 737 MAX 8
Seoul Incheon – Ulaanbaatar eff 18DEC26 Increase from 6 to 7 weekly, Asiana A321neo replaces Korean Air A321neo
Seoul Incheon – Wuhan eff 18DEC26 Asiana A330-300 replaces Korean Air A330-300, 4 weekly
Seoul Incheon – Xi’An eff 25OCT26 A321neo replaces initially filed 737-900ER, 1 daily
Seoul Incheon – Xiamen 25OCT26 – 16DEC26 A321neo replaces 737-900ER, 1 daily
Following routes are operated under Asiana Airlines’ OZ-coded flight numbers
Seoul Gimpo – Osaka Kansai 25OCT26 – 16DEC26 1 of 2 daily OZ1165/1155 A321ceo replaces A321neo
Seoul Gimpo – Tokyo Haneda eff 17DEC26 2 of 3 daily A330-300 replaced by following aircraft
* KE1085/1075 Korean Air 787-10
* KE1045/1035 Korean Air 787-10
Seoul Incheon – Bangkok Suvarnabhumi
* OZ741/742 eff 25OCT26 Initially filed A330-300 replaced by A380 (service not offered on 29OCT26 and 16DEC26. Korean Air 787-10 operating from 17DEC26)
* OZ743/744 22NOV26 – 16DEC26 777-200ER replaces Initially filed A330-300
Seoul Incheon – Clark eff 17DEC26 Korean Air A321neo replaces Asiana A321neo, 1 daily
Seoul Incheon – Frankfurt eff 17DEC26 Korean Air 777-300ER replaces Asiana A350-900, 4 weekly
Seoul Incheon – Fukuoka
* OZ132/131 eff 17DEC26 Korean Air A321neo replaces Asiana A321neo, 5 weekly
* OZ134/133 eff 25OCT26 A330-300 service maintained, instead of initially filed A321neo
Seoul Incheon – Hanoi 22NOV26 – 17DEC26 Reduce from 2 to 1 daily, A330-300
Seoul Incheon – Ho Chi Minh City eff 17DEC26 1 of 2 daily OZ735/736 A321neo replaced by A330-300 (Korean Air 777-300ER from 01FEB27)
Seoul Incheon – Honolulu eff 17DEC26 5 weekly service remains cancelled
Seoul Incheon – Kobe eff 25OCT26 1 daily A321neo scheduled charter extends into NW26
Seoul Incheon – London Heathrow eff 17DEC26 Korean Air 787-10 replaces A350-900, 1 daily
Seoul Incheon – Los Angeles eff 17DEC26 OZ204/203 Korean Air A380 replaces A350-900 (Overall 2 daily A380, OZ202/201 operated by Asiana A380)
Seoul Incheon – Manila eff 25OCT26 1 of 2 daily OZ703/704 A330-300 replaces 777-200ER (Overall 2 daily A330-300)
Seoul Incheon – Nagoya eff 25OCT26 1 of 2 daily OZ122/121 A321neo replaces A321ceo (Overall 2 daily A321neo)
Seoul Incheon – New York JFK
* OZ222/221 eff 17DEC26 Korean Air 777-300ER replaces A350-900
* OZ224/223 eff 25OCT26 2nd daily service maintained with A350-900
Seoul Incheon – Okinawa eff 25OCT26 Initially filed Asiana A321neo replaced by A330-300, 1 daily (Korean Air A321neo from 17DEC26)
Seoul Incheon – Osaka Kansai Aircraft changes on 3 of 4 daily flights
* OZ112/111 eff 25OCT26 A350-900 replaces initially filed A330-300 (except 17DEC26)
* OZ114/113 eff 25OCT26 Initially filed A330-300 replaced by A350-900 (Asiana A321ceo from 17DEC26)
* OZ118/117 eff 17DEC26 A321neo replaces A321ceo
Seoul Incheon – Paris Charles de Gaulle eff 17DEC26 Korean Air 787-10 replaces A350-900, 5 weekly (1 of 5 weekly by Korean Air 777-300ER from 17JAN27)
Seoul Incheon – Phuket eff 17DEC26 Korean Air A330-300 replaces Asiana A330-300, 1 daily
Seoul Incheon – Prague eff 17DEC26 Korean Air 787-9 replaces 777-200ER, 3 weekly
Seoul Incheon – San Francisco eff 17DEC26 Korean Air 787-10 replaces A350-900, 1 daily
Seoul Incheon – Sapporo New Chitose eff 25OCT26 A330-300 replace initially filed A321neo, 1 daily
Seoul Incheon – Seattle eff 17DEC26 Increase from 5 to 7 weekly, 777-200ER
Seoul Incheon – Shanghai Pu Dong 25OCT26 – 16DEC26 1 of 4 daily OZ365/366 A321ceo replaces A321neo
Seoul Incheon – Singapore eff 25OCT26 777-200ER replaces A350-900, 1 daily
Seoul Incheon – Sydney eff 19DEC26 A380 continues operating 1 daily, instead of 777-200ER
Seoul Incheon – Taipei Taoyuan Asiana Airlines continues to list OZ711/712 with A330-300, OZ713/714 with A321ceo
Seoul Incheon – Tokyo Narita
* OZ102/101 eff 25OCT26 Initially filed A330-300 replaced by A380 (From 17DEC26, 6 weekly A350-900 and 1 weekly Asiana A330-300. Asiana A380 service extended to 16DEC26)
* OZ106/105 eff 17DEC26 Korean Air 737 MAX 8 (-800 from 01JAN27) replaces Asiana A321ceo
* OZ108/107 eff 25OCT26 A330-300 service maintained, instead of initially filed A321ceo
Separately, with Asiana Airlines last week extended A380 Seoul Incheon – Tokyo Narita service into mid-December 2026 and Korean Air maintains 5th daily flight for Tokyo Narita in Northern winter 2026/27 season, plus Japanese carrier ZIPAIR expands service and Peach launching this route on 20SEP26, this flagship route during the month of September 2026 once again becomes the world’s busiest international route (by available seats offered based on OAG schedules analyser filing as of 30AUG26) for the second time in 2026, overtaking Taipei Taoyuan – Hong Kong.
This was highlighted via AeroRoutes’ X account on 01-02SEP26.