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WBU to INI: distance & flight time
Boulder (Boulder Municipal Airport) → Nis (Nis Airport)
5,799 mi
9,332 km · 5,039 nm
11h 50m
estimated nonstop flight time
+8h
time difference · heading northeast
See live WBU→INI fares Phone-only fares on this route — call free
Flight time details
5,799 miles nonstop takes roughly 11h 50m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, United States
- INI — Nis Airport · Nis, Serbia
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 INI
- PRN · Priština International Airport67 mi away
- SOF · Sofia Airport90 mi away
- SKP · Skopje Alexander the Great Airport96 mi away
- CRA · Craiova Airport122 mi away
Frequently asked questions
How far is WBU from INI?
The flight distance from Boulder (WBU) to Nis (INI) is 5,799 miles (9,332 km, 5,039 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to INI?
A nonstop flight takes about 11h 50m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from WBU to INI?
Nonstop service on WBU–INI depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 11h 50m nonstop estimate.
What is the time difference between Boulder and Nis?
Nis is 8 hours ahead of Boulder.
What is the cheapest way to fly from WBU to INI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–INI that never appear on search engines, with no booking fees.
Why are some WBU to INI fares phone-only?
Consolidator contracts let us sell certain WBU–INI tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.