Upgrade & Award Space from Osijek (OSI)
Osijek Airport (OSI) is a small station in Osijek, HR with nonstop service to 6 destinations, served by Independent Carrier (ICAR) and Croatia Airlines. Because the schedule is limited, an upgrade or award opening on a Munich flight rarely lasts. 2LNR checks every OSI nonstop for confirmed availability, so a rare opening doesn't go unnoticed.
Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.
Confirmed upgrade & award space on every OSI route
2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Pick any Osijek destination below to open a calendar of departures with real availability, or watch a route and get alerted when space opens.
See real availability
Confirmed upgrade and award seats on each OSI route, checked against live inventory so you know what is open before you book.
Set an alert
Premium inventory turns over fast. Watch a Osijek route and 2LNR notifies you when space appears.
Plan on the map
Explore every OSI nonstop on the interactive route map, with connections and route statistics.
All nonstop destinations from Osijek (OSI)
6 nonstop destinations with active service from Osijek Airport. Each route links to its confirmed upgrade and award availability.
Frequently asked questions about Osijek (OSI)
How many nonstop destinations does Osijek Airport (OSI) serve?
Which airlines fly upgrade-trackable routes from OSI?
How do I check upgrade or award availability from OSI?
Does 2LNR track flights from OSI?
Never miss OSI upgrade or award space
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