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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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
Sep 17 — Sep 241
Thu 9/17
Thu 9/24
1 adult, Economy
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Cheap 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 August 18, 2026.

This United Airlines deal was found by Cheapflights users on 8/13. 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 9/226:30 am -
1 stop11h 01m
Wed 9/237:05 pm -
1 stop9h 55m
Deal found 8/13$365
This Delta deal was found by Cheapflights users on 8/13. 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 11/127:45 am -
1 stop7h 49m
Tue 11/171:38 pm -
1 stop8h 21m
Deal found 8/13$366
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Sat 10/2411:00 am -
2 stops8h 43m
Sun 11/16:20 am -
1 stop7h 48m
Deal found 8/16$367
This United Airlines deal was found by Cheapflights users on 8/13. 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 11/244:10 pm -
1 stop7h 22m
Tue 12/16:20 am -
1 stop7h 48m
Deal found 8/13$406
This Delta deal was found by Cheapflights users on 8/13. 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.
Fri 9/257:43 pm -
2 stops19h 18m
Tue 9/292:11 pm -
1 stop7h 39m
Deal found 8/13$413
This Delta deal was found by Cheapflights users on 8/17. 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 12/212:50 pm -
2 stops13h 06m
Sat 12/51:43 pm -
1 stop8h 15m
Deal found 8/17$414
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 9/176:30 am -
1 stop11h 01m
Tue 9/227:05 pm -
1 stop9h 55m
Deal found 8/13$438
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 12/244:10 pm -
1 stop7h 32m
Tue 12/296:25 am -
1 stop6h 37m
Deal found 8/13$453
This Justfly.com deal was found by Cheapflights users on 8/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:30 pm -
2 stops11h 00m
Mon 9/78:59 am -
2 stops31h 56m
Deal found 8/16$457
This United Airlines deal was found by Cheapflights users on 8/17. 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 9/94:18 pm -
1 stop7h 27m
Sun 9/135:00 am -
1 stop8h 14m
Deal found 8/17$465
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Tue 11/2411:30 am -
1 stop12h 48m
Tue 12/110:36 am -
2 stops32h 04m
Deal found 8/13$479
This WestJet deal was found by Cheapflights users on 8/13. 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.
Thu 9/105:30 pm -
2 stops47h 46m
Thu 9/175:59 pm -
2 stops11h 06m
Deal found 8/13$485

Find flight deals from Ontario to Boise

Keep the following information in mind while searching for Ontario to Boise flight deals. Data was last updated August 18, 2026.

Round-trip from

$365
(United Airlines)

One-way from

$183
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$428
From Ontario to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Ontario to Boise Air Term. Gowen Fld
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

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 August 18, 2026.
Use the filters below to find and compare flights from Ontario to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoBoise

YYZ Toronto Pearson Intl - BOI Boise Air Term. Gowen Fld

YYZBOI

Toronto Pearson Intl

Tue 9/22

6:30 am-3:31 pm

1 stop11h 01m

Boise Air Term. Gowen Fld

Wed 9/23

7:05 pm-7:00 am

1 stop9h 55m

$365

TorontoBoise

YYZ Toronto Pearson Intl - BOI Boise Air Term. Gowen Fld

YYZBOI

Toronto Pearson Intl

Thu 11/12

7:45 am-1:34 pm

1 stop7h 49m

Boise Air Term. Gowen Fld

Tue 11/17

1:38 pm-11:59 pm

1 stop8h 21m

$366

TorontoBoise

YYZ Toronto Pearson Intl - BOI Boise Air Term. Gowen Fld

YYZBOI

Toronto Pearson Intl

Thu 11/12

6:45 am-11:30 am

1 stop6h 45m

Boise Air Term. Gowen Fld

Tue 11/17

6:30 am-11:26 pm

2 stops14h 56m

$366
Quickest round-trip

TorontoBoise

YYZ Toronto Pearson Intl - BOI Boise Air Term. Gowen Fld

YYZBOI

Toronto Pearson Intl

Sat 10/17

7:00 am-11:28 am

1 stop6h 28m

Boise Air Term. Gowen Fld

Tue 10/20

12:26 pm-8:44 pm

1 stop6h 18m

$367

MontrealBoise

YUL Montreal Pierre Elliott Trudeau Intl - BOI Boise Air Term. Gowen Fld

YULBOI

Montreal Pierre Elliott Trudeau Intl

Fri 9/25

7:43 pm-1:01 pm

2 stops19h 18m

Boise Air Term. Gowen Fld

Tue 9/29

2:11 pm-11:50 pm

1 stop7h 39m

$413

MontrealBoise

YUL Montreal Pierre Elliott Trudeau Intl - BOI Boise Air Term. Gowen Fld

YULBOI

Montreal Pierre Elliott Trudeau Intl

Wed 12/2

12:50 pm-11:56 pm

2 stops13h 06m

Boise Air Term. Gowen Fld

Sat 12/5

1:43 pm-11:58 pm

1 stop8h 15m

$414

MontrealBoise

YUL Montreal Pierre Elliott Trudeau Intl - BOI Boise Air Term. Gowen Fld

YULBOI

Montreal Pierre Elliott Trudeau Intl

Tue 10/20

9:45 am-11:59 pm

2 stops16h 14m

Boise Air Term. Gowen Fld

Tue 10/27

5:44 pm-1:28 pm

2 stops17h 44m

$437

MontrealBoise

YUL Montreal Pierre Elliott Trudeau Intl - BOI Boise Air Term. Gowen Fld

YULBOI

Montreal Pierre Elliott Trudeau Intl

Wed 12/2

7:00 am-9:16 pm

2 stops16h 16m

Boise Air Term. Gowen Fld

Sat 12/5

5:22 pm-1:51 pm

2 stops18h 29m

$437

TorontoBoise

YYZ Toronto Pearson Intl - BOI Boise Air Term. Gowen Fld

YYZBOI

Toronto Pearson Intl

Thu 9/17

6:30 am-3:31 pm

1 stop11h 01m

Boise Air Term. Gowen Fld

Tue 9/22

5:40 pm-2:24 pm

2 stops18h 44m

$438

TorontoBoise

YYZ Toronto Pearson Intl - BOI Boise Air Term. Gowen Fld

YYZBOI

Toronto Pearson Intl

Sat 9/5

1:30 pm-10:30 pm

2 stops11h 00m

Boise Air Term. Gowen Fld

Mon 9/7

8:59 am-6:55 pm

2 stops31h 56m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 30 resultsSorted by cheapest first
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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, November is the cheapest month in which you can book a flight from Region of Ontario to Boise (average of $310). Flying from Region of Ontario to Boise in May is currently the most expensive (average of $736). 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.

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

Airfare is below average for this route at the moment.
Region of Ontario to Boise flights typically cost between $487 and $636 in September.
The cheapest round-trip price found within the last 5 days was $365 on United Airlines (Sep 22-Sep 23).

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 49m. Fly via United Airlines or Delta 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, November is the cheapest month in which you can book a flight from Region of Ontario to Boise (average of $310). Flying from Region of Ontario to Boise in May is currently the most expensive (average of $736). 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

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