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Cheap flights from Ontario to Boise from $100

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 4/16. 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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Find the cheapest flights from Ontario to Boise

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to Boise that have been recently found on momondo from popular airlines, departing in the coming months.
5:20 pm - 10:45 pmONT-BOI
4h 25m1 stop
7:05 pm - 9:45 pmBOI-ONT
3h 40m1 stop
$182Southwest
Find Deal
Tue, Apr 1 - Tue, Apr 8
6:15 am - 11:40 amONT-BOI
4h 25m1 stop
12:30 pm - 8:10 pmBOI-ONT
8h 40m2 stops
$193Southwest
Find Deal
Tue, Apr 1 - Tue, Apr 8
5:15 pm - 12:09 amONT-BOI
5h 54m1 stop
7:50 pm - 11:41 pmBOI-ONT
4h 51m1 stop
$201Delta
Find Deal
Tue, Apr 15 - Mon, Apr 21
5:20 pm - 12:45 amONT-BOI
6h 25m1 stop
4:35 pm - 9:50 pmBOI-ONT
6h 15m1 stop
$206Southwest
Find Deal
Thu, Mar 27 - Thu, Apr 3
6:00 am - 1:52 pmONT-BOI
6h 52m1 stop
7:59 pm - 11:59 pmBOI-ONT
5h 00m1 stop
$212Alaska Airlines
Find Deal
Mon, Apr 7 - Wed, Apr 9
6:00 am - 12:32 pmONT-BOI
5h 32m1 stop
5:00 pm - 11:59 pmBOI-ONT
7h 59m1 stop
$219Alaska Airlines
Find Deal
Tue, Apr 1 - Thu, Apr 3
5:30 pm - 11:46 pmONT-BOI
5h 16m1 stop
5:59 pm - 11:56 pmBOI-ONT
6h 57m1 stop
$229Delta
Find Deal
Wed, Mar 19 - Wed, Mar 26
4:35 pm - 11:33 pmONT-BOI
5h 58m1 stop
1:50 pm - 6:23 pmBOI-ONT
5h 33m1 stop
$245American Airlines
Find Deal
Fri, May 9 - Sat, May 10
5:05 am - 1:28 pmONT-BOI
7h 23m1 stop
2:30 pm - 8:57 pmBOI-ONT
7h 27m1 stop
$323United Airlines
Find Deal
Wed, Mar 12 - Wed, Mar 19
1:36 pm - 9:44 pmONT-BOI
7h 08m1 stop
7:07 pm - 10:45 pmBOI-ONT
4h 38m1 stop
$391United Airlines
Find Deal
Fri, May 30 - Sun, Jun 1

Southwest flights from Ontario to Boise

Our best Southwest deals on Ontario to Boise flight tickets
Southwest
Apr 1
ONT5:20 pmOntario
4h 25m
1 stop
BOI10:45 pmBoise Air Term. Gowen Fld
Apr 8
BOI7:05 pmBoise Air Term. Gowen Fld
3h 40m
1 stop
ONT9:45 pmOntario
Southwest
Apr 1
ONT6:15 amOntario
4h 25m
1 stop
BOI11:40 amBoise Air Term. Gowen Fld
Apr 8
BOI12:30 pmBoise Air Term. Gowen Fld
8h 40m
2 stops
ONT8:10 pmOntario
Southwest
Mar 27
ONT5:20 pmOntario
6h 25m
1 stop
BOI12:45 amBoise Air Term. Gowen Fld
Apr 3
BOI4:35 pmBoise Air Term. Gowen Fld
6h 15m
1 stop
ONT9:50 pmOntario

Delta flights from Ontario to Boise

Our best Delta deals on Ontario to Boise flight tickets
Delta
Apr 15
ONT5:15 pmOntario
5h 54m
1 stop
BOI12:09 amBoise Air Term. Gowen Fld
Apr 21
BOI7:50 pmBoise Air Term. Gowen Fld
4h 51m
1 stop
ONT11:41 pmOntario
Delta
Mar 19
ONT5:30 pmOntario
5h 16m
1 stop
BOI11:46 pmBoise Air Term. Gowen Fld
Mar 26
BOI5:59 pmBoise Air Term. Gowen Fld
6h 57m
1 stop
ONT11:56 pmOntario
Delta
Apr 4
ONT5:30 pmOntario
5h 16m
1 stop
BOI11:46 pmBoise Air Term. Gowen Fld
Apr 6
BOI5:59 pmBoise Air Term. Gowen Fld
6h 53m
1 stop
ONT11:52 pmOntario

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 $284.

What is the cheapest day to depart on your flight to Boise?

Our data shows that Wednesday is the least expensive day to fly to Boise. Tickets to fly out on this day can be as low as $259. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $327. 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 $286 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 $332 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.

How have Ontario to Boise flight prices changed over time?

As of February 2025, prices for Ontario to Boise flights are approximately 48% cheaper when compared to flights at the same time last year.

When to book flights from Ontario to Boise

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Boise according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$100

Fastest flight time

3h 35m

Direct flights

None

Airports in Boise

1 airport
The best one-way flight to Boise from Ontario in the past 72 hours is $100. The best round-trip flight deal from Ontario to Boise found on momondo in the last 72 hours is $182.
The fastest flight from Ontario to Boise takes 3h 35m
There are no direct flights from Ontario to Boise. Popular non-direct route for this connection is Ontario Airport - Boise Air Term. Gowen Fld Airport.
There is 1 airport near Boise: Boise Air Term. Gowen Fld (BOI)

  • 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 35m.

  • 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?

  • 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?


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
Spirit AirlinesPriceFrom $121Free CancellationRating
6.3
7,981 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $177Free CancellationRating
8.0
9,719 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $218Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $218Free CancellationRating
8.0
8,149 reviews
Search Delta flights
United AirlinesPriceFrom $238Free CancellationRating
7.4
8,733 reviews
Search United Airlines flights
SouthwestPriceFrom $240Free CancellationRating
8.1
4,369 reviews
Search Southwest flights

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
Nampa
Meridian
McCall
Ontario
Caldwell
Eagle

Why 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.


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