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Boise

$183+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$303
(Delta)

One-way from

$183
(Delta)

Popular in

June

Cheapest in

November

Average price

$402
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. 25% potential increase in price ($141 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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.
Sat 11/226:30 amYYZ - BOI
1 stop18h 58mUnited Airlines
Sun 12/710:35 amBOI - YYZ
1 stop18h 55mUnited Airlines
Deal found 9/14$311
This Alaska Airlines deal was found by Cheapflights users on 9/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/224:45 pmYYZ - BOI
1 stop7h 39mAlaska Airlines
Sun 12/74:18 pmBOI - YYZ
2 stops21h 17mAlaska Airlines
Deal found 9/14$345
This Delta deal was found by Cheapflights users on 9/15. 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.
Mon 10/136:20 amYYZ - BOI
1 stop9h 42mDelta
Mon 10/207:45 pmBOI - YYZ
2 stops14h 02mDelta
Deal found 9/15$367
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/156:30 amYYZ - BOI
1 stop9h 13mUnited Airlines
Sun 10/192:39 pmBOI - YYZ
2 stops17h 19mUnited Airlines
Deal found 9/16$395
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/224:45 pmYYZ - BOI
1 stop7h 39mMultiple Airlines
Sun 12/77:41 amBOI - YYZ
2 stops20h 27mMultiple Airlines
Deal found 9/14$406
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2210:30 amYYZ - BOI
2 stops34h 24mWestJet
Sun 12/79:00 amBOI - YYZ
2 stops19h 08mWestJet
Deal found 9/14$412
This Delta deal was found by Cheapflights users on 9/15. 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.
Mon 11/106:00 amYUL - BOI
2 stops16h 25mDelta
Wed 11/1911:42 amBOI - YUL
2 stops10h 00mDelta
Deal found 9/15$430
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/138:05 pmYYZ - BOI
1 stop29h 10mMultiple Airlines
Mon 10/2010:34 pmBOI - YYZ
1 stop19h 26mMultiple Airlines
Deal found 9/15$441
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/132:00 pmYYZ - BOI
2 stops12h 08mWestJet
Mon 10/2011:41 amBOI - YYZ
2 stops27h 41mWestJet
Deal found 9/15$442
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 10/306:00 amYUL - BOI
2 stops16h 16mDelta
Thu 11/611:39 pmBOI - YUL
1 stop9h 52mDelta
Deal found 9/15$565
This Delta deal was found by Cheapflights users on 9/14. 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.
Sun 11/96:00 amYUL - BOI
2 stops14h 54mDelta
Thu 11/203:00 pmBOI - YUL
1 stop6h 42mDelta
Deal found 9/14$585
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Mon 11/105:50 pmYUL - BOI
1 stop21h 54mUnited Airlines
Wed 11/192:11 pmBOI - YUL
1 stop28h 32mUnited Airlines
Deal found 9/15$588

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 September 16, 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

1:00 pm-11:42 pm

2 stops12h 42m

Boise Air Term. Gowen Fld

Tue 2/24

11:45 am-11:04 pm

2 stops9h 19m

$303

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Fri 2/20

10:45 am-11:37 pm

1 stop14h 52m

Boise Air Term. Gowen Fld

Tue 2/24

8:40 am-10:28 pm

1 stop11h 48m

$303

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Sat 11/22

6:30 am-11:28 pm

1 stop18h 58m

Boise Air Term. Gowen Fld

Sun 12/7

10:35 am-7:30 am

1 stop18h 55m

$311

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Sat 11/22

4:45 pm-8:26 am

2 stops17h 41m

Boise Air Term. Gowen Fld

Sun 12/7

4:18 pm-3:35 pm

2 stops21h 17m

$359

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Mon 10/13

6:20 am-2:02 pm

1 stop9h 42m

Boise Air Term. Gowen Fld

Mon 10/20

7:45 pm-11:47 am

2 stops14h 02m

$367

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Thu 10/30

7:00 am-8:16 pm

2 stops15h 16m

Boise Air Term. Gowen Fld

Thu 11/6

8:55 am-11:21 pm

2 stops12h 26m

$565

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Fri 2/20

5:50 pm-11:37 pm

1 stop31h 47m

Boise Air Term. Gowen Fld

Tue 2/24

1:00 pm-4:49 pm

1 stop25h 49m

$581

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Sun 11/9

6:00 am-6:54 pm

2 stops14h 54m

Boise Air Term. Gowen Fld

Thu 11/20

3:00 pm-11:42 pm

1 stop6h 42m

$585

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Mon 11/10

5:50 pm-1:44 pm

1 stop21h 54m

Boise Air Term. Gowen Fld

Wed 11/19

2:11 pm-8:43 pm

1 stop28h 32m

$588

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Fri 2/20

3:00 pm-11:42 pm

1 stop10h 42m

Boise Air Term. Gowen Fld

Tue 2/24

5:40 am-11:54 pm

2 stops16h 14m

$596

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 23 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, October is the cheapest month in which you can book a flight from Region of Ontario to Boise (average of $314). Flying from Region of Ontario to Boise in June is currently the most expensive (average of $398). 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 September 16, 2025.

When flying from Region of Ontario to Boise, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Region of Ontario to Boise?

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 12h 42m. Fly via Delta or United 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, October is the cheapest month in which you can book a flight from Region of Ontario to Boise (average of $314). Flying from Region of Ontario to Boise in June is currently the most expensive (average of $398). 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$372Average$372FlexibilityNo cancel feeOn-time67%

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