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Flights from Ontario to Idaho Falls
There are no direct flights from Ontario to Idaho Falls. The fastest way is one stop via Las Vegas or Denver, about 4h 35m door to door (31 connections a week on current schedules).
No direct flights · 4 connection options From 4h 35m
Ontario to Idaho Falls at a glance
Fastest journey4h 35mVia Las Vegas, on current schedules
Nonstop flightsNoneConnect via Las Vegas or Denver
Best ways to fly from Ontario to Idaho Falls
Ranked by how easy the connection is: one airline or alliance first (bags and connection protected), then the quickest self-transfer options.
1Search
ONT Las Vegas (LAS) IDA
Leg 1: Frontier Airlines, Southwest Airlines · Leg 2: Allegiant Air
Mon05:45 ONT06:35 LAS2h 10m connection08:45 LAS11:20 IDASouthwest Airlines + Allegiant Air
2Search
ONT Denver (DEN) IDA
Leg 1: Frontier Airlines, Southwest Airlines, United Airlines · Leg 2: United Airlines
Thu06:30 ONT09:25 DEN2h 20m connection11:45 DEN13:11 IDASouthwest Airlines + United Airlines
3Search
ONT Salt Lake City (SLC) IDA
Leg 1: Delta Air Lines · Leg 2: Delta Air Lines
Thu13:30 ONT16:02 SLC5h 13m connection21:15 SLC22:00 IDADelta Air Lines
4Search
ONT Portland (PDX) IDA
Leg 1: Alaska Airlines, Horizon Air · Leg 2: Alaska Airlines, Allegiant Air
Connections are computed from flights actually flown over the last 8 weeks, with at least 45 minutes to change on one airline and 2 hours on separate tickets. Times are local. The search shows live itineraries and exact times.
Good to know
- Distance
- 1,156 km718 miles
- Journey time
- 4h 35mon current schedules
- Time difference
- +1hIdaho Falls vs Ontario
- Currency in Idaho Falls
- USD
- Airports
- ONT → IDA
Flights from Ontario to Idaho Falls: questions answered
Are there direct flights from Ontario to Idaho Falls?
No. There is no nonstop service, so you will connect, most easily in Las Vegas, Denver and Salt Lake City. Some connections are on one airline or alliance, so your bags and connection are protected on a single ticket.
How long is the flight from Ontario to Idaho Falls?
With one connection the journey usually takes around 4h 35m, depending on the layover. The straight-line distance is 1,156 km.
Where do you change planes between Ontario and Idaho Falls?
The best connecting points are Las Vegas (LAS), Denver (DEN), Salt Lake City (SLC) and Portland (PDX). Compare one-ticket itineraries with self-transfer options in the search.
Which airports serve Ontario and Idaho Falls?
Ontario: Ontario International Airport (ONT). Idaho Falls: Idaho Falls Regional Airport (IDA).
What is the time difference between Ontario and Idaho Falls?
Idaho Falls is 1 hour ahead of Ontario.





