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ZYL to WBU: distance & flight time
Sylhet Osmani (Osmany International Airport) → Boulder (Boulder Municipal Airport)
7,813 mi
12,573 km · 6,789 nm
15h 47m
estimated nonstop flight time
-12h
time difference · heading north
See live ZYL→WBU fares Phone-only fares on this route — call free
Flight time details
7,813 miles nonstop takes roughly 15h 47m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- ZYL — Osmany International Airport · Sylhet Osmani, Bangladesh
- 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 ZYL
- IXH · Kailashahar Airport46 mi away
- SHL · Shillong Airport52 mi away
- IXS · Silchar Airport70 mi away
- GAU · Lokpriya Gopinath Bordoloi International Airport81 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 ZYL from WBU?
The flight distance from Sylhet Osmani (ZYL) to Boulder (WBU) is 7,813 miles (12,573 km, 6,789 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ZYL to WBU?
A nonstop flight takes about 15h 47m 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 Sylhet Osmani and Boulder?
Boulder is 12 hours behind Sylhet Osmani.
What is the cheapest way to fly from ZYL to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ZYL–WBU that never appear on search engines, with no booking fees.