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ZAG to WBU: distance & flight time
Zagreb (Zagreb Airport) → Boulder (Boulder Municipal Airport)
5,489 mi
8,834 km · 4,770 nm
11h 14m
estimated nonstop flight time
-8h
time difference · heading northwest
See live ZAG→WBU fares Phone-only fares on this route — call free
Flight time details
5,489 miles nonstop takes roughly 11h 14m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- ZAG — Zagreb Airport · Zagreb, Croatia
- WBU — Boulder Municipal Airport · Boulder, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near ZAG
- MBX · Maribor Airport54 mi away
- RJK · Rijeka Airport81 mi away
- BNX · Banja Luka International Airport81 mi away
- SOB · Sármellék International Airport83 mi away
Near WBU
- DEN · Denver International Airport32 mi away
- BJC · Rocky Mountain Metropolitan Airport11 mi away
- FNL · Northern Colorado Regional Airport31 mi away
- BFK · Buckley Air Force Base34 mi away
Frequently asked questions
How far is ZAG from WBU?
The flight distance from Zagreb (ZAG) to Boulder (WBU) is 5,489 miles (8,834 km, 4,770 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ZAG to WBU?
A nonstop flight takes about 11h 14m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Zagreb and Boulder?
Boulder is 8 hours behind Zagreb.
What is the cheapest way to fly from ZAG to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ZAG–WBU that never appear on search engines, with no booking fees.