Route guide

Seoul to Zagreb (ICN-ZAG): Nonstop Upgrade & Award Space

Trans World Airlines flies nonstop from Seoul (ICN) to Zagreb (ZAG) just once a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on all of them, so a rare opening doesn't slip past you.

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

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1
Nonstop flights a week
5,248 mi
Nonstop distance
Free
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Confirmed upgrade & award space on every ICN to ZAG 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 Zagreb 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 ZAG 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 ZAG on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seoul to Zagreb nonstop

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

  • Trans World Airlines
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Frequently asked questions about ICN to ZAG

How far is Zagreb from Seoul?
ICN to ZAG covers about 5,248 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 ZAG?
Trans World Airlines is currently the only airline flying ICN to ZAG nonstop. 2LNR tracks confirmed upgrade and award space on every Trans World Airlines departure.
How often does ICN to ZAG operate?
The nonstop currently runs once a week, on Trans World Airlines. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on ICN to ZAG?
Open the ICN to ZAG calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Seoul to Zagreb route, and 2LNR will notify you when space opens. It's free to start.

Never miss ICN to ZAG upgrade or award space

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