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$201+ Cheap flights from Ontario to Boise (BOI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/16. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Cheap flight deals from Ontario to Boise

Keep the following information in mind while searching for Ontario to Boise flight deals. Data was last updated November 2, 2025.

Round-trip from

$346
(Kiwi.com)

One-way from

$201
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$270
From Ontario to Boise Air Term. Gowen Fld
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One-way flight from Ontario to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 22% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Ontario to Boise

Cheapest flights from Ontario to Boise
Explore the most affordable flight options available from Ontario to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This Orbitz deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:45 amYYZ - BOI
2 stops11h 42mMultiple Airlines
Fri 1/26:08 amBOI - YYZ
1 stop7h 27mMultiple Airlines
Deal found 10/31$529
This WestJet deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:30 pmYYZ - BOI
2 stops31h 37mWestJet
Fri 1/27:30 amBOI - YYZ
2 stops21h 28mWestJet
Deal found 10/31$538
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:10 amYUL - BOI
1 stop8h 59mDelta
Mon 11/247:30 amBOI - YUL
2 stops14h 29mDelta
Deal found 11/1$623
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:15 pmYYZ - BOI
1 stop10h 44mUnited Airlines
Fri 1/26:15 amBOI - YYZ
1 stop10h 20mUnited Airlines
Deal found 10/31$625
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 amYUL - BOI
2 stops14h 57mAmerican Airlines
Mon 11/241:25 pmBOI - YUL
1 stop23h 39mAmerican Airlines
Deal found 10/31$641
This Air Canada deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:25 pmYUL - BOI
1 stop18h 33mAir Canada
Mon 11/245:00 amBOI - YUL
1 stop9h 58mAir Canada
Deal found 11/1$725
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:00 amYUL - BOI
2 stops17h 01mDelta
Tue 12/3011:47 pmBOI - YUL
1 stop9h 45mDelta
Deal found 11/1$802

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Boise that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 2, 2025.
Use the filters below to find and compare flights from Ontario to Boise that are best for you.

Fly from

Ontario

Fly to

Boise

Route

Depart

Return

Price

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Fri 2/20

6:00 am-2:09 pm

2 stops10h 09m

Boise Air Term. Gowen Fld

Tue 2/24

7:30 am-11:04 pm

2 stops13h 34m

$353

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Fri 2/20

4:45 pm-10:20 pm

1 stop7h 35m

Boise Air Term. Gowen Fld

Tue 2/24

6:28 am-3:35 pm

1 stop7h 07m

$353

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Fri 1/9

5:15 pm-12:59 pm

2 stops21h 44m

Boise Air Term. Gowen Fld

Sun 1/11

3:01 pm-11:13 pm

1 stop6h 12m

$358

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Thu 1/8

4:10 pm-9:52 pm

1 stop7h 42m

Boise Air Term. Gowen Fld

Mon 1/12

6:10 am-3:02 pm

1 stop6h 52m

$360

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Thu 1/8

6:00 am-2:04 pm

2 stops10h 04m

Boise Air Term. Gowen Fld

Mon 1/12

11:20 am-10:41 pm

2 stops9h 21m

$360

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Wed 11/19

4:45 pm-12:09 am

2 stops9h 24m

Boise Air Term. Gowen Fld

Mon 11/24

9:00 am-11:59 pm

2 stops12h 59m

$623

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Wed 11/19

7:00 am-7:57 pm

2 stops14h 57m

Boise Air Term. Gowen Fld

Mon 11/24

1:25 pm-3:04 pm

1 stop23h 39m

$641

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Wed 11/19

5:25 pm-9:58 am

1 stop18h 33m

Boise Air Term. Gowen Fld

Mon 11/24

5:00 am-4:58 pm

1 stop9h 58m

$725

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Tue 12/23

7:00 am-10:01 pm

2 stops17h 01m

Boise Air Term. Gowen Fld

Tue 12/30

11:47 pm-11:32 am

1 stop9h 45m

$802

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Tue 12/16

6:30 am-11:44 pm

1 stop19h 14m

$201

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 12 results
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Best time to book a flight from Ontario to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Boise

What is the cheapest month to book a flight from Region of Ontario to Boise?

Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Boise (average of $168). Flying from Region of Ontario to Boise in November is currently the most expensive (average of $510). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ON to BOI?

Find hourly flight availability from Ontario to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

When flying from Region of Ontario to Boise, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 27% versus a flight in the morning.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Boise from Ontario?

    Most people fly into Boise Air Term. Gowen Fld (BOI) if they book a flight to Boise from Ontario. Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

  • How long is the flight from Region of Ontario to Boise?

    There are many flights that can get you from Region of Ontario to Boise in 7h 35m. Fly via Delta, Alaska Airlines, or American Airlines to get the fastest option. Airlines will cover a distance of 1814 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Ontario to Boise that include hotel bookings?

    Yes. In addition to deals on Ontario to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Boise?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Boise.

  • Can I find deals for business class flights from Ontario to Boise?

    Yes. Cheapflights offers flight deals from Ontario to Boise by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Region of Ontario to Boise?

    Currently, September is the cheapest month in which you can book a flight from Region of Ontario to Boise (average of $168). Flying from Region of Ontario to Boise in November is currently the most expensive (average of $510). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Boise?

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

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Alternative routes for Ontario to Boise

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Top airline flying from Ontario to Boise

Discover the top airline that operate flights from Ontario to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$372Average$372FlexibilityNo cancel feeOn-time67%

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