Route guide

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

Independent Carrier (ICAR) flies the OSI to ZAG nonstop about 7 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 OSI to ZAG 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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7
Nonstop flights a week
127 mi
Nonstop distance
Free
To get started

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

Airlines flying Osijek to Zagreb nonstop

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

  • Independent Carrier (ICAR)
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Frequently asked questions about OSI to ZAG

How far is Zagreb from Osijek?
OSI to ZAG 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 OSI to ZAG?
Independent Carrier (ICAR) is currently the only airline flying OSI to ZAG nonstop. 2LNR tracks confirmed upgrade and award space on every Independent Carrier (ICAR) departure.
How many flights a week are there from OSI to ZAG?
About 7 nonstop flights a week run between Osijek and Zagreb 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 OSI to ZAG?
Open the OSI to ZAG calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Osijek to Zagreb route, and 2LNR will notify you when space opens. It's free to start.

Never miss OSI to ZAG upgrade or award space

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