Route guide

London to Zagreb (LHR-ZAG): Nonstop Upgrade & Award Space

Croatia Airlines, British Airways, and American Airlines fly the LHR to ZAG nonstop about 9 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 LHR 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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9
Nonstop flights a week
850 mi
Nonstop distance
Free
To get started

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

Airlines flying London to Zagreb nonstop

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

  • Croatia Airlines
  • British Airways
  • American Airlines
See LHR to ZAG on the interactive map →

Frequently asked questions about LHR to ZAG

How far is Zagreb from London?
LHR to ZAG covers about 850 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from LHR to ZAG?
Croatia Airlines, British Airways, and American Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on all three of them.
How many flights a week are there from LHR to ZAG?
About 9 nonstop flights a week run between London and Zagreb in the current schedule, operated by Croatia Airlines, British Airways, and American Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on LHR to ZAG?
Open the LHR to ZAG calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the London to Zagreb route, and 2LNR will notify you when space opens. It's free to start.

Never miss LHR to ZAG upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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