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XSP to WBU: distance & flight time
Singapore (Seletar Airport) → Boulder (Boulder Municipal Airport)
9,035 mi
14,540 km · 7,851 nm
18h 11m
estimated nonstop flight time
-14h
time difference · heading northeast
See live XSP→WBU fares Phone-only fares on this route — call free
Flight time details
9,035 miles nonstop takes roughly 18h 11m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- XSP — Seletar Airport · Singapore, Singapore
- 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 XSP
- SIN · Singapore Changi Airport10 mi away
- QPG · Paya Lebar Air Base5 mi away
- TGA · Tengah Air Base11 mi away
- JHB · Senai International Airport21 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 XSP from WBU?
The flight distance from Singapore (XSP) to Boulder (WBU) is 9,035 miles (14,540 km, 7,851 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from XSP to WBU?
A nonstop flight takes about 18h 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 Singapore and Boulder?
Boulder is 14 hours behind Singapore.
What is the cheapest way to fly from XSP to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on XSP–WBU that never appear on search engines, with no booking fees.