Cheap flights from Ontario to Idaho from $109
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 4/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Round-trip
1 adult
Economy
0 bags
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Cheap round-trip flights
These are some of the best round-trip flight deals from Ontario to Idaho that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to Idaho.
Cheap last minute flights
Planning a quick getaway from Ontario to Idaho? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to Idaho, so you can enjoy a seamless trip without layovers.
Cheap bus & train deals from Ontario to Idaho
Find recent round-trip train or bus tickets from Ontario to Idaho.
All round-trip flight deals to Idaho
The cheapest plane tickets to Idaho found on KAYAK recently.
United Airlines flights from Ontario to Idaho
Our best United Airlines deals on Ontario to Idaho flight tickets
United Airlines![United Airlines]()
Feb 19![United Airlines]()
Feb 20
ONT1:44 pmOntario
8h 29m
1 stop
BOI11:13 pmBoise Air Term. Gowen Fld
BOI11:05 amBoise Air Term. Gowen Fld
4h 24m
1 stop
ONT2:29 pmOntario
United Airlines![United Airlines]()
Feb 8![United Airlines]()
Feb 15
ONT10:47 amOntario
4h 40m
1 stop
BOI4:27 pmBoise Air Term. Gowen Fld
BOI2:36 pmBoise Air Term. Gowen Fld
7h 16m
1 stop
ONT8:52 pmOntario
Southwest flights from Ontario to Idaho
Our best Southwest deals on Ontario to Idaho flight tickets
Southwest![Southwest]()
Jan 28![Southwest]()
Jan 29
ONT1:40 pmOntario
8h 25m
1 stop
GEG10:05 pmSpokane
GEG11:50 amSpokane
6h 15m
1 stop
ONT6:05 pmOntario
Southwest![Southwest]()
Feb 19![Southwest]()
Feb 20
ONT4:05 pmOntario
6h 30m
2 stops
BOI11:35 pmBoise Air Term. Gowen Fld
BOI6:50 amBoise Air Term. Gowen Fld
4h 35m
1 stop
ONT10:25 amOntario
See travel insights to Idaho from
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
Prices
Airlines
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 $284.
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?
The ideal time to book your flight to Idaho is 15 days in advance when prices tend to average $338. Keep in mind that you might be able to find cheaper flights to Idaho at any time. In fact, our users found flights for as low as $133 in the past 72 hours.
What is the cheapest airline that flies from Ontario to Idaho?
Alaska Airlines, Delta, and United Airlines 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 28% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 8 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 January 2025, there are 7 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 $108 | Free Cancellation | Rating 6.3 8,075 reviews | |||
| PriceFrom $132 | Free Cancellation | Rating 7.5 74 reviews | |||
| PriceFrom $178 | Free Cancellation | Rating 8.0 8,501 reviews | |||
| PriceFrom $196 | Free Cancellation | Rating 8.0 9,642 reviews | |||
| PriceFrom $218 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 7.4 8,944 reviews | |||
| PriceFrom $240 | Free Cancellation | Rating 8.1 4,650 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.
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Find better results for your trip to Idaho
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