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WBU to OSP: distance & flight time
Boulder (Boulder Municipal Airport) → Slupsk (Redzikowo Air Base)
5,071 mi
8,162 km · 4,407 nm
10h 25m
estimated nonstop flight time
+8h
time difference · heading northeast
See live WBU→OSP fares Phone-only fares on this route — call free
Flight time details
5,071 miles nonstop takes roughly 10h 25m 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
- OSP — Redzikowo Air Base · Slupsk, Poland
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 OSP
- GDN · Gdańsk Lech Wałęsa Airport55 mi away
- QYD · Oksywie Military Air Base57 mi away
- RNN · Bornholm Airport102 mi away
- BZG · Bydgoszcz Ignacy Jan Paderewski Airport102 mi away
Frequently asked questions
How far is WBU from OSP?
The flight distance from Boulder (WBU) to Slupsk (OSP) is 5,071 miles (8,162 km, 4,407 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to OSP?
A nonstop flight takes about 10h 25m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from WBU to OSP?
Nonstop service on WBU–OSP depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 10h 25m nonstop estimate.
What is the time difference between Boulder and Slupsk?
Slupsk is 8 hours ahead of Boulder.
What is the cheapest way to fly from WBU to OSP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–OSP that never appear on search engines, with no booking fees.
Why are some WBU to OSP fares phone-only?
Consolidator contracts let us sell certain WBU–OSP tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.