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WBU to CLJ: distance & flight time
Boulder (Boulder Municipal Airport) → Cluj-napoca (Cluj-Napoca International Airport)
5,664 mi
9,116 km · 4,922 nm
11h 34m
estimated nonstop flight time
+9h
time difference · heading northeast
See live WBU→CLJ fares Phone-only fares on this route — call free
Flight time details
5,664 miles nonstop takes roughly 11h 34m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, United States
- CLJ — Cluj-Napoca International Airport · Cluj-napoca, Romania
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 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
Near CLJ
- TGM · Transilvania Târgu Mureş International Airport41 mi away
- BAY · Tautii Magheraus Airport61 mi away
- SBZ · Sibiu International Airport72 mi away
- SUJ · Satu Mare Airport74 mi away
Frequently asked questions
How far is WBU from CLJ?
The flight distance from Boulder (WBU) to Cluj-napoca (CLJ) is 5,664 miles (9,116 km, 4,922 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to CLJ?
A nonstop flight takes about 11h 34m 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 Boulder and Cluj-napoca?
Cluj-napoca is 9 hours ahead of Boulder.
What is the cheapest way to fly from WBU to CLJ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–CLJ that never appear on search engines, with no booking fees.