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WBU to OSR: distance & flight time
Boulder (Boulder Municipal Airport) → Ostrava (Ostrava Leos Janáček Airport)
5,347 mi
8,604 km · 4,646 nm
10h 57m
estimated nonstop flight time
+8h
time difference · heading northeast
See live WBU→OSR fares Phone-only fares on this route — call free
Flight time details
5,347 miles nonstop takes roughly 10h 57m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- WBU — Boulder Municipal Airport · Boulder, United States
- OSR — Ostrava Leos Janáček Airport · Ostrava, Czech Republic
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 OSR
- PRV · Přerov Air Base37 mi away
- ILZ · Žilina Airport39 mi away
- UHE · Kunovice Airport55 mi away
- KTW · Katowice International Airport69 mi away
Frequently asked questions
How far is WBU from OSR?
The flight distance from Boulder (WBU) to Ostrava (OSR) is 5,347 miles (8,604 km, 4,646 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to OSR?
A nonstop flight takes about 10h 57m 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 Ostrava?
Ostrava is 8 hours ahead of Boulder.
What is the cheapest way to fly from WBU to OSR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–OSR that never appear on search engines, with no booking fees.