Cheap flights from Ontario to Idaho from $89
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Idaho departing on 8/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Ontario to Idaho
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Idaho?
In general, January is the cheapest month to fly from Ontario to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $240. If you don’t want to visit Idaho in January, then you should wait until October to fly from Ontario, when ticket prices are also cheap, with an average price of $286.
What is the cheapest day to depart on your flight to Idaho?
Our data shows that Thursday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $311. On the other hand, Friday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $357.
What is the cheapest time of day to depart on your flight to Idaho?
According to our data, the cheapest time of day to fly to Idaho is in the evening. momondo users have found flights departing from Ontario to Idaho in the evening for as low as $285. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Idaho, so prices are often more expensive at around $351 per ticket.
How far in advance should I book a flight to Idaho?
You are more likely to see cheaper flights to Idaho from Ontario when booking 17 weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $323 when searching 17 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Ontario for as low as $200 on momondo.
What is the cheapest airline that flies from Ontario to Idaho?
Hawaiian Airlines, Delta, and Southwest are the most popular carriers operating from Ontario to Idaho
What airlines fly to Idaho?
Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Idaho from Ontario according to our data. Alaska Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 9 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.
Cheap Ontario to Idaho flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Idaho
When did momondo last update prices for flights from Ontario Airport to Idaho?
Prices for flights from Ontario Airport to Idaho were last updated today.
How many operators does momondo search for flights from Ontario Airport to Idaho?
As of June 2025, there are 6 operators available to choose from for flights from Ontario Airport to Idaho.
How old do you have to be to fly from Ontario Airport to Idaho?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Ontario to Idaho
Compare and see reviews for airlines that fly from Ontario to Idaho with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $177 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $181 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $218 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $233 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $240 | Free Cancellation | Rating 8.0 4,278 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to Idaho?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Idaho for you.
Can I find flights from Ontario to Idaho with flexible booking policies on momondo?
momondo does allow users to show only those flights to Idaho from Ontario which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Ontario to Idaho?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Idaho.
I’m not ready to book a flight from Ontario to Idaho right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Ontario to Idaho flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.