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$143+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 April 24, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$341
(Delta)

One-way from

$143
(Delta)

Popular in

March

Cheapest in

February

Average price

$382
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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One-way flight from Boise Air Term. Gowen Fld to Ontario
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High demand for flights, 15% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 24, 2025.

This Delta deal was found by Cheapflights users on 4/22. 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 5/115:35 amBOI - YYZ
1 stop10h 56mDelta
Sun 5/181:25 pmYYZ - BOI
1 stop11h 24mDelta
Deal found 4/22$341
This Delta deal was found by Cheapflights users on 4/24. 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 9/31:43 pmBOI - YUL
1 stop8h 14mDelta
Wed 9/107:30 amYUL - BOI
1 stop8h 35mDelta
Deal found 4/24$367
This United Airlines deal was found by Cheapflights users on 4/22. 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 6/62:35 pmBOI - YYZ
1 stop6h 13mUnited Airlines
Fri 6/138:30 amYYZ - BOI
1 stop10h 11mUnited Airlines
Deal found 4/22$373
This United Airlines deal was found by Cheapflights users on 4/24. 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 5/157:41 amBOI - YUL
1 stop10h 24mUnited Airlines
Tue 5/202:20 pmYUL - BOI
2 stops10h 32mUnited Airlines
Deal found 4/24$377
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Sun 5/251:38 pmBOI - YYZ
1 stop20h 52mAmerican Airlines
Wed 5/286:45 amYYZ - BOI
1 stop17h 15mAmerican Airlines
Deal found 4/22$437
This Expedia deal was found by Cheapflights users on 4/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/295:40 amBOI - YYZ
2 stops16h 53mMultiple Airlines
Sat 9/132:40 pmYYZ - BOI
1 stop8h 34mMultiple Airlines
Deal found 4/22$495
This WestJet deal was found by Cheapflights users on 4/22. 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 5/225:45 amBOI - YYZ
2 stops11h 11mWestJet
Mon 5/266:30 amYYZ - BOI
2 stops11h 49mWestJet
Deal found 4/22$596
This American Airlines deal was found by Cheapflights users on 4/23. 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 8/201:17 pmBOI - YUL
1 stop20h 18mAmerican Airlines
Sat 8/2310:20 amYUL - BOI
2 stops15h 14mAmerican Airlines
Deal found 4/23$636
This Expedia deal was found by Cheapflights users on 4/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:35 amBOI - YHM
2 stops11h 24mMultiple Airlines
Mon 9/227:05 amYHM - BOI
2 stops13h 05mMultiple Airlines
Deal found 4/23$729
This WestJet deal was found by Cheapflights users on 4/21. 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.
Fri 5/1610:46 amBOI - YHM
2 stops11h 55mWestJet
Mon 5/196:00 amYHM - BOI
2 stops12h 19mWestJet
Deal found 4/21$1,300

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 April 24, 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

Sun 5/11

5:35 am-6:31 pm

1 stop10h 56m

Toronto Pearson Intl

Sun 5/18

1:25 pm-10:49 pm

1 stop11h 24m

$341

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Wed 9/3

1:43 pm-11:57 pm

1 stop8h 14m

Montreal Pierre Elliott Trudeau Intl

Wed 9/10

7:30 am-2:05 pm

1 stop8h 35m

$367

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Fri 6/6

2:35 pm-10:48 pm

1 stop6h 13m

Toronto Pearson Intl

Fri 6/13

8:30 am-4:41 pm

1 stop10h 11m

$373

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Thu 5/15

7:41 am-8:05 pm

1 stop10h 24m

Montreal Pierre Elliott Trudeau Intl

Tue 5/20

2:20 pm-10:52 pm

2 stops10h 32m

$377

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sun 5/25

1:38 pm-12:30 pm

1 stop20h 52m

Toronto Pearson Intl

Wed 5/28

6:45 am-10:00 pm

1 stop17h 15m

$437

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Fri 8/29

5:40 am-12:33 am

2 stops16h 53m

Toronto Pearson Intl

Sat 9/13

2:40 pm-9:14 pm

1 stop8h 34m

$495

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Thu 5/22

5:45 am-6:56 pm

2 stops11h 11m

Toronto Pearson Intl

Mon 5/26

6:30 am-4:19 pm

2 stops11h 49m

$596

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Wed 8/20

1:17 pm-11:35 am

1 stop20h 18m

Montreal Pierre Elliott Trudeau Intl

Sat 8/23

10:20 am-11:34 pm

2 stops15h 14m

$636

BoiseHamilton

BOI - YHM

BOIYHM

Boise Air Term. Gowen Fld

Fri 9/19

6:35 am-7:59 pm

2 stops11h 24m

Hamilton

Mon 9/22

7:05 am-6:10 pm

2 stops13h 05m

$729

BoiseHamilton

BOI - YHM

BOIYHM

Boise Air Term. Gowen Fld

Sun 5/25

5:45 am-12:41 am

2 stops16h 56m

Hamilton

Wed 5/28

6:00 am-7:09 pm

2 stops15h 09m

$1,698

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 15 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, 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 $359). 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 April 24, 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 April 24, 2025.
To help decide which airline to fly from Boise to Ontario, see what other customers have to say about Delta, United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,816 reviews
Delta
8.0
Very good
7,920 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 Delta ($143), United Airlines ($154), and American Airlines ($160).

  • 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, 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 $359). 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 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$136Average$616FlexibilityNo cancel feeOn-time67%
DeltaCheapest$181Average$384FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$278Average$278FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$317Average$617FlexibilityNo cancel feeOn-time69%

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