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COS to ONT: distance & flight time
Colorado Springs (City of Colorado Springs Municipal Airport) → Ontario (Ontario International Airport)
788 mi
1,268 km · 684 nm
2h 11m
estimated nonstop flight time
-1h
time difference · heading west
See live COS→ONT fares Phone-only fares on this route — call free
Flight time details
788 miles nonstop takes roughly 2h 11m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- COS — City of Colorado Springs Municipal Airport · Colorado Springs, United States
- ONT — Ontario International Airport · Ontario, 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 COS
- FCS · Butts AAF (Fort Carson) Air Field9 mi away
- DEN · Denver International Airport73 mi away
- PUB · Pueblo Memorial Airport37 mi away
- APA · Centennial Airport53 mi away
Near ONT
- CCB · Cable Airport6 mi away
- CNO · Chino Airport6 mi away
- LAX · Los Angeles International Airport47 mi away
- RAL · Riverside Municipal Airport11 mi away
Frequently asked questions
How far is COS from ONT?
The flight distance from Colorado Springs (COS) to Ontario (ONT) is 788 miles (1,268 km, 684 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from COS to ONT?
A nonstop flight takes about 2h 11m 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 Colorado Springs and Ontario?
Ontario is 1 hour behind Colorado Springs.
What is the cheapest way to fly from COS to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on COS–ONT that never appear on search engines, with no booking fees.