Need help booking?
Unpublished phone-only deals available
YOW to WBU: distance & flight time
Ottawa (Ottawa Macdonald-Cartier International Airport) → Boulder (Boulder Municipal Airport)
1,536 mi
2,471 km · 1,334 nm
3h 29m
estimated nonstop flight time
-2h
time difference · heading west
See live YOW→WBU fares Phone-only fares on this route — call free
Flight time details
1,536 miles nonstop takes roughly 3h 29m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- YOW — Ottawa Macdonald-Cartier International Airport · Ottawa, Canada
- WBU — Boulder Municipal Airport · Boulder, 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 YOW
- YRO · Ottawa / Rockcliffe Airport10 mi away
- YND · Ottawa / Gatineau Airport15 mi away
- YSH · Smiths Falls-Montague (Russ Beach) Airport29 mi away
- OGS · Ogdensburg International Airport45 mi away
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
Frequently asked questions
How far is YOW from WBU?
The flight distance from Ottawa (YOW) to Boulder (WBU) is 1,536 miles (2,471 km, 1,334 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YOW to WBU?
A nonstop flight takes about 3h 29m 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 YOW to WBU?
Nonstop service on YOW–WBU 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 3h 29m nonstop estimate.
What is the time difference between Ottawa and Boulder?
Boulder is 2 hours behind Ottawa.
What is the cheapest way to fly from YOW to WBU?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YOW–WBU that never appear on search engines, with no booking fees.
Why are some YOW to WBU fares phone-only?
Consolidator contracts let us sell certain YOW–WBU 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.