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UGN to DEN: distance & flight time
Chicago (Waukegan National Airport) → Denver (Denver International Airport)
891 mi
1,433 km · 774 nm
2h 24m
estimated nonstop flight time
-1h
time difference · heading west
See live UGN→DEN fares Phone-only fares on this route — call free
Flight time details
891 miles nonstop takes roughly 2h 24m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- UGN — Waukegan National Airport · Chicago, United States
- DEN — Denver International Airport · Denver, 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 UGN
- ORD · Chicago O'Hare International Airport31 mi away
- ENW · Kenosha Regional Airport12 mi away
- PWK · Chicago Executive Airport21 mi away
- RAC · John H Batten Airport24 mi away
Near DEN
- BFK · Buckley Air Force Base12 mi away
- APA · Centennial Airport22 mi away
- BJC · Rocky Mountain Metropolitan Airport24 mi away
- WBU · Boulder Municipal Airport32 mi away
Frequently asked questions
How far is UGN from DEN?
The flight distance from Chicago (UGN) to Denver (DEN) is 891 miles (1,433 km, 774 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UGN to DEN?
A nonstop flight takes about 2h 24m 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 Chicago and Denver?
Denver is 1 hour behind Chicago.
What is the cheapest way to fly from UGN to DEN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UGN–DEN that never appear on search engines, with no booking fees.