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$149+ Cheap flights from Boise (BOI) to Ontario

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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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Cheap flight deals from Boise to Ontario

Keep the following information in mind while searching for Boise to Ontario flight deals. Data was last updated November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$353
(United Airlines)

Popular in

May

Cheapest in

February

Average price

$563
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Toronto (YTO) flights.
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From Boise Air Term. Gowen Fld to Ontario
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High demand for flights, 12% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($23 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 Boise to Ontario

Cheapest flights from Boise to Ontario
Explore the most affordable flight options available from Boise to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2025.

This American Airlines deal was found by Cheapflights users on 11/9. 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.
Sat 12/61:57 pmBOI - YYZ
1 stop20h 33mAmerican Airlines
Sun 12/146:10 amYYZ - BOI
1 stop17h 53mAmerican Airlines
Deal found 11/9$353
This Delta deal was found by Cheapflights users on 11/9. 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 12/62:04 pmBOI - YYZ
1 stop7h 55mDelta
Sun 12/1412:13 pmYYZ - BOI
2 stops14h 29mDelta
Deal found 11/9$363
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
Thu 12/259:50 pmBOI - YYZ
1 stop15h 45mMultiple Airlines
Thu 1/18:00 pmYYZ - BOI
1 stop21h 04mMultiple Airlines
Deal found 11/10$407
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Wed 11/196:28 amBOI - YYZ
1 stop7h 07mMultiple Airlines
Sun 11/309:10 amYYZ - BOI
2 stops51h 24mMultiple Airlines
Deal found 11/9$569
This FlightHub deal was found by Cheapflights users on 11/9. 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.
Wed 11/121:50 pmBOI - YYZ
2 stops30h 03mWestJet
Wed 11/197:45 amYYZ - BOI
2 stops13h 09mWestJet
Deal found 11/9$598
This Kiwi.com deal was found by Cheapflights users on 11/9. 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.
Wed 11/196:28 amBOI - YYZ
1 stop7h 07mMultiple Airlines
Fri 11/286:30 amYYZ - BOI
2 stops12h 16mMultiple Airlines
Deal found 11/9$609
This United Airlines deal was found by Cheapflights users on 11/9. 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 11/126:15 amBOI - YYZ
1 stop6h 47mUnited Airlines
Wed 11/196:50 amYYZ - BOI
1 stop6h 49mUnited Airlines
Deal found 11/9$620
This United Airlines deal was found by Cheapflights users on 11/10. 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 12/2510:42 amBOI - YYZ
2 stops11h 17mUnited Airlines
Thu 1/19:00 amYYZ - BOI
2 stops14h 31mUnited Airlines
Deal found 11/10$625
This American Airlines deal was found by Cheapflights users on 11/9. 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 11/196:37 amBOI - YYZ
2 stops14h 07mAmerican Airlines
Fri 11/286:10 amYYZ - BOI
2 stops13h 44mAmerican Airlines
Deal found 11/9$635
This Delta deal was found by Cheapflights users on 11/10. 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 12/107:30 amBOI - YUL
2 stops14h 02mDelta
Wed 12/177:10 amYUL - BOI
2 stops17h 06mDelta
Deal found 11/10$703
This United Airlines deal was found by Cheapflights users on 11/10. 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 12/102:20 pmBOI - YUL
1 stop24h 29mUnited Airlines
Wed 12/171:10 pmYUL - BOI
1 stop23h 29mUnited Airlines
Deal found 11/10$829
This United Airlines deal was found by Cheapflights users on 11/9. 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 12/258:20 amBOI - YUL
1 stop10h 57mUnited Airlines
Thu 1/17:00 amYUL - BOI
2 stops16h 31mUnited Airlines
Deal found 11/9$860

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise to Ontario 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 10, 2025.
Use the filters below to find and compare flights from Boise to Ontario that are best for you.

Fly from

Boise

Fly to

Ontario

Route

Depart

Return

Price

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sat 12/6

1:57 pm-12:30 pm

1 stop20h 33m

Toronto Pearson Intl

Sun 12/14

6:10 am-10:03 pm

1 stop17h 53m

$353

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sat 2/28

3:03 pm-11:13 pm

1 stop6h 10m

Toronto Pearson Intl

Wed 3/4

6:10 am-12:31 pm

1 stop8h 21m

$353

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sat 2/28

4:02 pm-3:35 pm

2 stops21h 33m

Toronto Pearson Intl

Wed 3/4

4:45 pm-9:45 am

2 stops19h 00m

$368

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Thu 12/25

9:50 pm-3:35 pm

1 stop15h 45m

Toronto Pearson Intl

Thu 1/1

8:00 pm-3:04 pm

1 stop21h 04m

$407

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Tue 3/10

6:28 am-3:35 pm

1 stop7h 07m

Toronto Pearson Intl

Fri 3/13

4:45 pm-10:40 pm

1 stop7h 55m

$449

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Tue 3/10

3:00 pm-11:04 pm

1 stop6h 04m

Toronto Pearson Intl

Fri 3/13

9:45 am-11:42 pm

2 stops15h 57m

$458

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Mon 2/16

11:19 am-11:25 am

2 stops22h 06m

Montreal Pierre Elliott Trudeau Intl

Fri 2/20

4:45 pm-12:10 pm

2 stops21h 25m

$654

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Thu 4/2

3:00 pm-11:39 pm

1 stop6h 39m

Montreal Pierre Elliott Trudeau Intl

Tue 4/7

7:00 am-12:21 am

2 stops19h 21m

$755

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Thu 4/2

3:00 pm-11:39 pm

1 stop6h 39m

Montreal Pierre Elliott Trudeau Intl

Fri 4/10

7:00 am-12:21 am

2 stops19h 21m

$755

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Wed 4/1

3:00 pm-11:39 pm

1 stop6h 39m

Montreal Pierre Elliott Trudeau Intl

Sun 4/5

7:00 am-10:02 pm

2 stops17h 02m

$755

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 20 results
1
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Best time to book a flight from Boise to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Boise 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 Boise to Ontario

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

Currently, February is the cheapest month in which you can book a flight from Boise to Region of Ontario (average of $154). Flying from Boise to Region of Ontario in August is currently the most expensive (average of $453). 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 BOI to ON?

Find hourly flight availability from Boise to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 10, 2025.

One of the essential ways to save on airfare from Boise to Region of Ontario is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 53% on airfare.

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

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated November 10, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Boise to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,259 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,259 reviews
Alaska Airlines
8.0
Very good
11,259 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
8,004 reviews
Alaska Airlines
8.0
Very good
11,259 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
9,011 reviews
Alaska Airlines
8.0
Very good
11,259 reviews

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

Find useful and relevant information for your journey from Boise to Ontario. 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 from for flights from Boise to Ontario?

    Boise Air Term. Gowen Fld (BOI), located 3.3 mi from the city center, is the airport you fly out of when you book flights from Boise to Ontario.

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

    A quick flight from Boise to Region of Ontario can take about 6h 10m. American Airlines provides one of the quickest options available for as low as $353. The distance from Boise to Region of Ontario is about 1814 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Boise to Region of Ontario one-way?

    The cheapest airlines for a one-way flight from Boise to Region of Ontario are Alaska Airlines ($149), United Airlines ($149), and Delta ($154).

  • What are the most popular routes from Boise to Region of Ontario?

    Most travelers choose Boise Air Term. Gowen Fld - Toronto Pearson Intl, Boise Air Term. Gowen Fld - Montreal Pierre Elliott Trudeau Intl or Boise Air Term. Gowen Fld - Hamilton when deciding on the best route from Boise to Region of Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise to Ontario 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 Boise to Region of Ontario?

    Currently, February is the cheapest month in which you can book a flight from Boise to Region of Ontario (average of $154). Flying from Boise to Region of Ontario in August is currently the most expensive (average of $453). 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

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Alternative routes for Boise to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Boise to Ontario

Discover the top 3 airlines that operate flights from Boise to Ontario. 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 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$173Average$375FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$244Average$501FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$255Average$278FlexibilityNo cancel feeOn-time75%

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