Route guide

Zagreb to Osijek (ZAG-OSI): Nonstop Upgrade & Award Space

Independent Carrier (ICAR) flies the ZAG to OSI nonstop about 6 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every ZAG to OSI departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

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

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6
Nonstop flights a week
127 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every ZAG to OSI 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 Zagreb to Osijek 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 ZAG to OSI 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 ZAG to OSI on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Zagreb to Osijek nonstop

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

  • Independent Carrier (ICAR)
See ZAG to OSI on the interactive map →

Frequently asked questions about ZAG to OSI

How far is Osijek from Zagreb?
ZAG to OSI covers about 127 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from ZAG to OSI?
Independent Carrier (ICAR) is currently the only airline flying ZAG to OSI nonstop. 2LNR tracks confirmed upgrade and award space on every Independent Carrier (ICAR) departure.
How many flights a week are there from ZAG to OSI?
About 6 nonstop flights a week run between Zagreb and Osijek in the current schedule, operated by Independent Carrier (ICAR). Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on ZAG to OSI?
Open the ZAG to OSI calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Zagreb to Osijek route, and 2LNR will notify you when space opens. It's free to start.

Never miss ZAG to OSI upgrade or award space

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