HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boise

$185+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
Aug 2 — Aug 91
Sun 8/2
Sun 8/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Boise with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 3, 2026.

This Delta deal was found by Cheapflights users on 6/28. 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 8/255:50 pm
YYZ
-
BOI
1 stop8h 09m
Delta
Mon 9/711:10 pm
BOI
-
YYZ
1 stop11h 09m
Delta
Deal found 6/28$321
This United Airlines deal was found by Cheapflights users on 7/3. 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 10/144:18 pm
YYZ
-
BOI
1 stop7h 17m
United Airlines
Wed 11/411:51 am
BOI
-
YYZ
1 stop17h 39m
United Airlines
Deal found 7/3$329
This Delta deal was found by Cheapflights users on 6/30. 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.
Sat 10/176:30 am
YYZ
-
BOI
1 stop7h 58m
Delta
Tue 10/201:33 pm
BOI
-
YYZ
1 stop8h 26m
Delta
Deal found 6/30$330
This United Airlines deal was found by Cheapflights users on 7/2. 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 10/177:00 am
YYZ
-
BOI
1 stop6h 28m
United Airlines
Tue 10/206:50 pm
BOI
-
YYZ
1 stop10h 10m
United Airlines
Deal found 7/2$331
This Delta deal was found by Cheapflights users on 6/29. 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 8/137:24 pm
YYZ
-
BOI
1 stop6h 35m
Delta
Thu 8/202:53 pm
BOI
-
YYZ
1 stop6h 17m
Delta
Deal found 6/29$340
This Delta deal was found by Cheapflights users on 6/28. 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 8/255:50 pm
YYZ
-
BOI
1 stop8h 09m
Delta
Fri 9/411:10 pm
BOI
-
YYZ
1 stop11h 13m
Delta
Deal found 6/28$351
This Delta deal was found by Cheapflights users on 6/28. 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 8/3011:40 am
YYZ
-
BOI
1 stop12h 17m
Delta
Wed 9/92:50 pm
BOI
-
YYZ
1 stop6h 23m
Delta
Deal found 6/28$361
This United Airlines deal was found by Cheapflights users on 6/29. 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 8/137:30 pm
YYZ
-
BOI
2 stops16h 05m
United Airlines
Thu 8/205:44 pm
BOI
-
YYZ
2 stops15h 12m
United Airlines
Deal found 6/29$371
This United deal was found by Cheapflights users on 7/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:30 am
YYZ
-
BOI
1 stop14h 54m
Multiple Airlines
Sun 9/65:00 am
BOI
-
YYZ
1 stop16h 17m
Multiple Airlines
Deal found 7/2$380
This United Airlines deal was found by Cheapflights users on 6/28. 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 8/268:55 am
YYZ
-
BOI
1 stop14h 42m
United Airlines
Sat 9/56:30 am
BOI
-
YYZ
1 stop14h 47m
United Airlines
Deal found 6/28$381
This American Airlines deal was found by Cheapflights users on 7/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/133:45 pm
YUL
-
BOI
1 stop21h 31m
American Airlines
Fri 8/213:19 pm
BOI
-
YUL
1 stop18h 24m
American Airlines
Deal found 7/1$387
This Delta deal was found by Cheapflights users on 6/30. 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 12/22:30 pm
YUL
-
BOI
2 stops11h 25m
Delta
Fri 12/45:40 am
BOI
-
YUL
2 stops15h 30m
Delta
Deal found 6/30$433

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 July 3, 2026.

Round-trip from

$321
(United Airlines)

One-way from

$185
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$330
From Ontario to Boise Air Term. Gowen Fld
Search Deals
One-way flight from Ontario to Boise Air Term. Gowen Fld
Search Deals
High demand for flights, 0% potential price rise
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 July 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 July 3, 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 - BOI

YYZBOI

Toronto Pearson Intl

Tue 8/25

7:24 pm-11:59 pm

1 stop6h 35m

Boise Air Term. Gowen Fld

Wed 9/9

2:50 pm-11:13 pm

1 stop6h 23m

$321

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Tue 8/25

9:00 pm-11:28 am

1 stop16h 28m

Boise Air Term. Gowen Fld

Sat 9/5

10:36 am-9:32 pm

1 stop8h 56m

$321

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Thu 8/27

7:00 am-11:28 am

1 stop6h 28m

Boise Air Term. Gowen Fld

Sun 9/6

6:30 am-9:32 pm

1 stop13h 02m

$321

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Wed 10/14

4:18 pm-9:35 pm

1 stop7h 17m

Boise Air Term. Gowen Fld

Wed 11/4

11:51 am-7:30 am

1 stop17h 39m

$329

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Sat 10/17

6:30 am-12:28 pm

1 stop7h 58m

Boise Air Term. Gowen Fld

Tue 10/20

1:33 pm-11:59 pm

1 stop8h 26m

$330

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Sat 10/17

7:00 am-11:28 am

1 stop6h 28m

Boise Air Term. Gowen Fld

Tue 10/20

6:50 pm-7:00 am

1 stop10h 10m

$331
Quickest round-trip

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Thu 8/13

7:24 pm-11:59 pm

1 stop6h 35m

Boise Air Term. Gowen Fld

Thu 8/20

2:53 pm-11:10 pm

1 stop6h 17m

$340

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Tue 11/24

12:45 pm-10:41 pm

1 stop11h 56m

Boise Air Term. Gowen Fld

Tue 12/1

8:45 am-11:51 pm

2 stops13h 06m

$433

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Wed 12/2

2:30 pm-11:55 pm

2 stops11h 25m

Boise Air Term. Gowen Fld

Fri 12/4

1:43 pm-11:51 pm

1 stop8h 08m

$433

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Mon 7/13

5:30 pm-3:11 pm

2 stops23h 41m

Boise Air Term. Gowen Fld

Sun 7/19

8:42 am-7:05 am

2 stops20h 23m

$497

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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, August is the cheapest month in which you can book a flight from Region of Ontario to Boise (average of $146). 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?

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 6h 28m. 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, August is the cheapest month in which you can book a flight from Region of Ontario to Boise (average of $146). 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
Meridian
Nampa
Caldwell
Ontario

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights