Need help booking?
Unpublished phone-only deals available
ILG to WBU: distance & flight time
Wilmington (New Castle Airport) → Boulder (Boulder Municipal Airport)
1,564 mi
2,517 km · 1,359 nm
3h 32m
estimated nonstop flight time
-2h
time difference · heading west
See live ILG→WBU fares Phone-only fares on this route — call free
Flight time details
1,564 miles nonstop takes roughly 3h 32m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- ILG — New Castle Airport · Wilmington, United States
- 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 ILG
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 ILG from WBU?
The flight distance from Wilmington (ILG) to Boulder (WBU) is 1,564 miles (2,517 km, 1,359 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ILG to WBU?
A nonstop flight takes about 3h 32m 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 Wilmington and Boulder?
Boulder is 2 hours behind Wilmington.
What is the cheapest way to fly from ILG to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ILG–WBU that never appear on search engines, with no booking fees.