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IDA to ONT: distance & flight time
Idaho Falls (Idaho Falls Regional Airport) → Ontario (Ontario International Airport)
718 mi
1,155 km · 624 nm
2h 2m
estimated nonstop flight time
-1h
time difference · heading southwest
See live IDA→ONT fares Phone-only fares on this route — call free
Flight time details
718 miles nonstop takes roughly 2h 2m gate to gate, flying southwest. 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
- IDA — Idaho Falls Regional Airport · Idaho Falls, 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 IDA
- PIH · Pocatello Regional Airport49 mi away
- JAC · Jackson Hole Airport67 mi away
- WYS · Yellowstone Airport94 mi away
- BYI · Burley Municipal Airport109 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 IDA from ONT?
The flight distance from Idaho Falls (IDA) to Ontario (ONT) is 718 miles (1,155 km, 624 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IDA to ONT?
A nonstop flight takes about 2h 2m 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 Idaho Falls and Ontario?
Ontario is 1 hour behind Idaho Falls.
What is the cheapest way to fly from IDA to ONT?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IDA–ONT that never appear on search engines, with no booking fees.