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$151+ 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 6/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$363
(United Airlines)

One-way from

$151
(United Airlines)

Popular in

May

Cheapest in

February

Average price

$195
From Boise Air Term. Gowen Fld to Ontario
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One-way flight from Boise Air Term. Gowen Fld to Ontario
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High demand for flights, 9% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 11/42:40 pmBOI - YYZ
1 stop14h 50mUnited Airlines
Tue 11/116:30 amYYZ - BOI
1 stop14h 44mUnited Airlines
Deal found 6/10$363
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Fri 8/159:49 pmBOI - YYZ
1 stop17h 33mMultiple Airlines
Sun 8/178:05 pmYYZ - BOI
1 stop26h 39mMultiple Airlines
Deal found 6/9$365
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/47:21 amBOI - YYZ
2 stops10h 49mAmerican Airlines
Tue 11/112:15 pmYYZ - BOI
2 stops11h 21mAmerican Airlines
Deal found 6/10$377
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/215:45 pmBOI - YYZ
1 stop19h 15mAlaska Airlines
Sat 9/274:45 pmYYZ - BOI
1 stop7h 55mAlaska Airlines
Deal found 6/10$384
This Delta deal was found by Cheapflights users on 6/11. 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 8/111:40 pmBOI - YYZ
1 stop8h 39mDelta
Mon 8/251:20 pmYYZ - BOI
2 stops11h 40mDelta
Deal found 6/11$413
This American Airlines deal was found by Cheapflights users on 6/12. 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 9/31:17 pmBOI - YUL
1 stop20h 29mAmerican Airlines
Wed 9/107:25 amYUL - BOI
2 stops14h 37mAmerican Airlines
Deal found 6/12$506
This Delta deal was found by Cheapflights users on 6/11. 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 9/37:51 amBOI - YUL
2 stops13h 25mDelta
Wed 9/1011:00 amYUL - BOI
2 stops14h 58mDelta
Deal found 6/11$523
This Mytrip deal was found by Cheapflights users on 6/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/257:48 pmBOI - YUL
2 stops22h 09mMultiple Airlines
Fri 8/18:10 amYUL - BOI
3 stops31h 29mMultiple Airlines
Deal found 6/9$556
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Fri 9/512:27 pmBOI - YUL
2 stops18h 02mUnited Airlines
Mon 9/156:45 pmYUL - BOI
2 stops24h 13mUnited Airlines
Deal found 6/10$714
This WestJet deal was found by Cheapflights users on 6/9. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2210:47 amBOI - YHM
2 stops11h 54mWestJet
Tue 7/296:00 amYHM - BOI
2 stops14h 59mWestJet
Deal found 6/9$1,191

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 June 12, 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

Tue 11/4

2:40 pm-7:30 am

1 stop14h 50m

Toronto Pearson Intl

Tue 11/11

6:30 am-7:14 pm

1 stop14h 44m

$363

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Fri 8/15

9:49 pm-5:22 pm

1 stop17h 33m

Toronto Pearson Intl

Sun 8/17

8:05 pm-8:44 pm

1 stop26h 39m

$365

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Tue 11/4

7:21 am-8:10 pm

2 stops10h 49m

Toronto Pearson Intl

Tue 11/11

2:15 pm-11:36 pm

2 stops11h 21m

$377

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sun 9/21

5:45 pm-3:00 pm

1 stop19h 15m

Toronto Pearson Intl

Sat 9/27

4:45 pm-10:40 pm

1 stop7h 55m

$384

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Fri 8/1

11:40 pm-10:19 am

1 stop8h 39m

Toronto Pearson Intl

Mon 8/25

1:20 pm-11:00 pm

2 stops11h 40m

$413

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Wed 9/3

1:17 pm-11:46 am

1 stop20h 29m

Montreal Pierre Elliott Trudeau Intl

Wed 9/10

7:25 am-8:02 pm

2 stops14h 37m

$506

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Wed 9/3

7:51 am-11:16 pm

2 stops13h 25m

Montreal Pierre Elliott Trudeau Intl

Wed 9/10

11:00 am-11:58 pm

2 stops14h 58m

$523

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Fri 7/25

7:48 pm-7:57 pm

2 stops22h 09m

Montreal Pierre Elliott Trudeau Intl

Fri 8/1

8:10 am-1:39 pm

3 stops31h 29m

$556

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Fri 9/5

12:27 pm-8:29 am

2 stops18h 02m

Montreal Pierre Elliott Trudeau Intl

Mon 9/15

6:45 pm-4:58 pm

2 stops24h 13m

$714

BoiseHamilton

BOI - YHM

BOIYHM

Boise Air Term. Gowen Fld

Tue 7/22

10:47 am-12:41 am

2 stops11h 54m

Hamilton

Tue 7/29

6:00 am-6:59 pm

2 stops14h 59m

$1,191

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 18 results
1
2

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, January is the cheapest month in which you can book a flight from Boise to Region of Ontario (average of $243). Flying from Boise to Region of Ontario in July is currently the most expensive (average of $353). 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 June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boise to Region of Ontario as you normally would.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

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 June 12, 2025.
To help decide which airline to fly from Boise to Ontario, see what other customers have to say about Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
WestJet
7.2
Good
2,868 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Comfort

7.8

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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.

  • 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 United Airlines ($151), Delta ($156), and American Airlines ($380).

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

    Most travelers choose Boise Air Term. Gowen Fld - Montreal Pierre Elliott Trudeau Intl, Boise Air Term. Gowen Fld - Toronto Pearson 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, January is the cheapest month in which you can book a flight from Boise to Region of Ontario (average of $243). Flying from Boise to Region of Ontario in July is currently the most expensive (average of $353). 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.

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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 4 airlines flying from Boise to Ontario

Discover the top 4 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$173Average$409FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$278Average$278FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$317Average$511FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$490Average$893FlexibilityNo cancel feeOn-time67%

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