Need help booking?
Unpublished phone-only deals available
WBU to CMB: distance & flight time
Boulder (Boulder Municipal Airport) → Colombo (Bandaranaike International Colombo Airport)
9,158 mi
14,738 km · 7,958 nm
18h 25m
estimated nonstop flight time
+11.5h
time difference · heading north
See live WBU→CMB fares Phone-only fares on this route — call free
Flight time details
9,158 miles nonstop takes roughly 18h 25m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.5-hour time gain when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, United States
- CMB — Bandaranaike International Colombo Airport · Colombo, Sri Lanka
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 CMB
- RML · Colombo Ratmalana Airport25 mi away
- GIU · Sigiriya Air Force Base79 mi away
- ACJ · Anuradhapura Air Force Base86 mi away
- KCT · Koggala Airport87 mi away
Frequently asked questions
How far is WBU from CMB?
The flight distance from Boulder (WBU) to Colombo (CMB) is 9,158 miles (14,738 km, 7,958 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to CMB?
A nonstop flight takes about 18h 25m 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 Colombo?
Colombo is 11.5 hours ahead of Boulder.
What is the cheapest way to fly from WBU to CMB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–CMB that never appear on search engines, with no booking fees.