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WBU to ATH: distance & flight time
Boulder (Boulder Municipal Airport) → Athens (Eleftherios Venizelos International Airport)
6,163 mi
9,918 km · 5,355 nm
12h 33m
estimated nonstop flight time
+9h
time difference · heading northeast
See live WBU→ATH fares Phone-only fares on this route — call free
Flight time details
6,163 miles nonstop takes roughly 12h 33m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, United States
- ATH — Eleftherios Venizelos International Airport · Athens, Greece
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 ATH
- HEW · Athen Helenikon Airport12 mi away
- PKH · Porto Cheli Airport62 mi away
- JSY · Syros Airport65 mi away
- SKU · Skiros Airport77 mi away
Frequently asked questions
How far is WBU from ATH?
The flight distance from Boulder (WBU) to Athens (ATH) is 6,163 miles (9,918 km, 5,355 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to ATH?
A nonstop flight takes about 12h 33m 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 Athens?
Athens is 9 hours ahead of Boulder.
What is the cheapest way to fly from WBU to ATH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–ATH that never appear on search engines, with no booking fees.