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WBU to BIO: distance & flight time
Boulder (Boulder Municipal Airport) → Bilbao (Bilbao Airport)
4,919 mi
7,916 km · 4,275 nm
10h 7m
estimated nonstop flight time
+8h
time difference · heading northeast
See live WBU→BIO fares Phone-only fares on this route — call free
Flight time details
4,919 miles nonstop takes roughly 10h 7m 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
- BIO — Bilbao Airport · Bilbao, Spain
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 BIO
- VIT · Vitoria/Foronda Airport30 mi away
- SDR · Santander Airport47 mi away
- EAS · San Sebastian Airport56 mi away
- RJL · Logroño-Agoncillo Airport65 mi away
Frequently asked questions
How far is WBU from BIO?
The flight distance from Boulder (WBU) to Bilbao (BIO) is 4,919 miles (7,916 km, 4,275 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from WBU to BIO?
A nonstop flight takes about 10h 7m 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 Bilbao?
Bilbao is 8 hours ahead of Boulder.
What is the cheapest way to fly from WBU to BIO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on WBU–BIO that never appear on search engines, with no booking fees.