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WBU to XSP: distance & flight time
Boulder (Boulder Municipal Airport) → Singapore (Seletar Airport)
9,035 mi
14,540 km · 7,851 nm
18h 11m
estimated nonstop flight time
+14h
time difference · heading northwest
See live WBU→XSP fares Phone-only fares on this route — call free
Flight time details
9,035 miles nonstop takes roughly 18h 11m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, United States
- XSP — Seletar Airport · Singapore, Singapore
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 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
Frequently asked questions
How far is WBU from XSP?
The flight distance from Boulder (WBU) to Singapore (XSP) 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 WBU to XSP?
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 Boulder and Singapore?
Singapore is 14 hours ahead of Boulder.
What is the cheapest way to fly from WBU to XSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–XSP that never appear on search engines, with no booking fees.