Need help booking?
Unpublished phone-only deals available
RJK to WBU: distance & flight time
Rijeka (Rijeka Airport) → Boulder (Boulder Municipal Airport)
5,467 mi
8,799 km · 4,751 nm
11h 11m
estimated nonstop flight time
-8h
time difference · heading northwest
See live RJK→WBU fares Phone-only fares on this route — call free
Flight time details
5,467 miles nonstop takes roughly 11h 11m 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
- RJK — Rijeka Airport · Rijeka, 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 RJK
- PUY · Pula Airport39 mi away
- LSZ · Lošinj Island Airport46 mi away
- POW · Portoroz Airport50 mi away
- TRS · Trieste–Friuli Venezia Giulia Airport68 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 RJK from WBU?
The flight distance from Rijeka (RJK) to Boulder (WBU) is 5,467 miles (8,799 km, 4,751 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RJK to WBU?
A nonstop flight takes about 11h 11m 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 Rijeka and Boulder?
Boulder is 8 hours behind Rijeka.
What is the cheapest way to fly from RJK to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RJK–WBU that never appear on search engines, with no booking fees.