Route guide

Seoul to Sapporo (ICN-CTS): Nonstop Upgrade & Award Space

Arcus-Air Logistic, Korean Air, Hahn Air Systems, Jin Air, and Asiana Airlines fly nonstop between Seoul (ICN) and Sapporo (CTS), roughly 96 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every ICN to CTS departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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96
Nonstop flights a week
884 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every ICN to CTS departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Seoul to Sapporo to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each ICN to CTS departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See ICN to CTS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seoul to Sapporo nonstop

Carriers operating ICN to CTS nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Arcus-Air Logistic
  • Korean Air
  • Hahn Air Systems
  • Jin Air
  • Asiana Airlines
See ICN to CTS on the interactive map →

Frequently asked questions about ICN to CTS

How far is Sapporo from Seoul?
ICN to CTS covers about 884 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from ICN to CTS?
Arcus-Air Logistic, Korean Air, Hahn Air Systems, Jin Air, and Asiana Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on each of them.
How many flights a week are there from ICN to CTS?
About 96 nonstop flights a week run between Seoul and Sapporo in the current schedule, operated by Arcus-Air Logistic, Korean Air, Hahn Air Systems, Jin Air, and Asiana Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on ICN to CTS?
Open the ICN to CTS calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Seoul to Sapporo route, and 2LNR will notify you when space opens. It's free to start.

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