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ATH to DEN: distance & flight time
Athens (Eleftherios Venizelos International Airport) → Denver (Denver International Airport)
6,154 mi
9,904 km · 5,348 nm
12h 32m
estimated nonstop flight time
-9h
time difference · heading northwest
See live ATH→DEN fares Phone-only fares on this route — call free
Flight time details
6,154 miles nonstop takes roughly 12h 32m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time set-back when reading arrival times on your ticket.
The two airports
- ATH — Eleftherios Venizelos International Airport · Athens, Greece
- 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 ATH
- HEW · Athen Helenikon Airport12 mi away
- PKH · Porto Cheli Airport62 mi away
- JSY · Syros Airport65 mi away
- SKU · Skiros Airport77 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 ATH from DEN?
The flight distance from Athens (ATH) to Denver (DEN) is 6,154 miles (9,904 km, 5,348 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ATH to DEN?
A nonstop flight takes about 12h 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 Athens and Denver?
Denver is 9 hours behind Athens.
What is the cheapest way to fly from ATH to DEN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ATH–DEN that never appear on search engines, with no booking fees.