Cheap flights from Ontario to Boise from $105
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 Boise departing on 5/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Ontario to Boise
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
United Airlines flights from Ontario to Boise
Our best United Airlines deals on Ontario to Boise flight tickets
Southwest flights from Ontario to Boise
Our best Southwest deals on Ontario to Boise flight tickets
See travel insights to Boise from
How to get the cheapest flight ticket from Ontario to Boise
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 Boise?
The month of January is, on average, the cheapest month to fly to Boise from Ontario, with most prices found around $240. If you aren’t able to travel during the month of January, then book flights to Boise from Ontario during October instead. Flights to Boise in October, while not as cheap as those in January, still average around $286.
What is the cheapest day to depart on your flight to Boise?
Our data shows that Saturday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $258. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $319. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boise.
What is the cheapest time of day to depart on your flight to Boise?
Our data shows that the cheapest Ontario to Boise flights are usually those with departure times at noon. Our users have found flights to Boise at noon for as low as $177. In the morning is when there is more demand to fly to Boise, so prices are often more expensive at around $285 per ticket.
How far in advance should I book a flight to Boise?
You are more likely to see cheaper flights to Boise from Ontario when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Boise for around $326 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boise from Ontario for as low as $184 on momondo.
What is the cheapest airline that flies from Ontario to Boise Air Term. Gowen Fld?
Frontier, Hawaiian Airlines, and Delta are the most popular carriers operating from Ontario to Boise Air Term. Gowen Fld
What airlines fly to Boise?
Alaska Airlines, United Airlines and Delta are the top three most popular airlines that fly to Boise 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 Boise. Keep in mind that there are 9 different airlines that fly to Boise on a routine basis, so you have a few additional options to choose from.
When to book flights from Ontario to Boise
Cheap Ontario to Boise (ONT to BOI) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to Boise
How far is Ontario to Boise Air Term. Gowen Fld by plane?
A flight from Ontario to Boise Air Term. Gowen Fld will travel around 663.9 mi. A reasonable flight in good conditions will take 3h 25m.
When did momondo last update prices for flights from Ontario Airport to Boise Air Term. Gowen Fld Airport?
Prices for flights from Ontario Airport to Boise Air Term. Gowen Fld Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario Airport to Boise Air Term. Gowen Fld Airport?
As of March 2025, there are 5 operators available to choose from for flights from Ontario Airport to Boise Air Term. Gowen Fld Airport.
How old do you have to be to fly from Ontario Airport to Boise Air Term. Gowen Fld Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Boise Air Term. Gowen Fld Airport.
What documentation or ID do you need to fly to Boise Air Term. Gowen Fld Airport?
The required travel and health documents for your Boise Air Term. Gowen Fld Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Boise Air Term. Gowen Fld Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Ontario to Boise?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Boise is Southwest (38% of total bookings). The next most popular airlines are Delta (28%), United Airlines (15%), and Alaska Airlines (15%).
Best airlines flying from Ontario to Boise
Compare and see reviews for airlines that fly from Ontario to Boise with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $108 | Free Cancellation | Rating 6.3 7,884 reviews | |||
| PriceFrom $177 | Free Cancellation | Rating 8.0 9,818 reviews | |||
| PriceFrom $209 | Free Cancellation | Rating 8.0 7,899 reviews | |||
| PriceFrom $238 | Free Cancellation | Rating 7.4 8,614 reviews | |||
| PriceFrom $240 | Free Cancellation | Rating 8.0 4,276 reviews |
Traveling to a place near Boise?
Book flights to Boise if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ontario to Boise?
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 Boise for you.
Can I find flights from Ontario to Boise with flexible booking policies on momondo?
Flights from Ontario to Boise with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Ontario to Boise?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Boise from Ontario.
I’m not ready to book a flight from Ontario to Boise right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Ontario to Boise flights. All you need is a valid email address and we will do the rest; it is that quick and easy.