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$191+ 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 12/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
nov. 27 — déc. 41
jeu. 11/27
jeu. 12/4
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 octobre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$356
(Delta)

One-way from

$191
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$620
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, 8% potential price rise
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Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in October 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 octobre 28, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/26. 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.
dim. 11/166:28 amBOI - YYZ
1 stop7h 07mAlaska Airlines
lun. 11/174:45 pmYYZ - BOI
1 stop7h 35mAlaska Airlines
Deal found 10/26$356
This Delta deal was found by Cheapflights users on 10/25. 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.
mer. 12/108:45 amBOI - YYZ
2 stops12h 42mDelta
mer. 12/176:30 amYYZ - BOI
1 stop9h 48mDelta
Deal found 10/25$365
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
ven. 12/266:08 amBOI - YYZ
1 stop7h 27mMultiple Airlines
lun. 1/57:55 pmYYZ - BOI
2 stops18h 47mMultiple Airlines
Deal found 10/26$467
This United Airlines deal was found by Cheapflights users on 10/26. 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.
ven. 12/265:00 amBOI - YYZ
1 stop8h 02mUnited Airlines
lun. 1/56:30 amYYZ - BOI
1 stop14h 43mUnited Airlines
Deal found 10/26$484
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 11/51:25 pmBOI - YYZ
1 stop7h 19mAmerican Airlines
mer. 12/36:10 amYYZ - BOI
1 stop18h 15mAmerican Airlines
Deal found 10/28$486
This Delta deal was found by Cheapflights users on 10/26. 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.
mer. 11/51:39 pmBOI - YYZ
1 stop8h 19mDelta
mer. 12/35:15 pmYYZ - BOI
1 stop8h 54mDelta
Deal found 10/26$488
This Orbitz deal was found by Cheapflights users on 10/27. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/249:50 pmBOI - YYZ
1 stop15h 45mMultiple Airlines
sam. 12/2710:15 pmYYZ - BOI
2 stops18h 34mMultiple Airlines
Deal found 10/27$516
This FlightHub deal was found by Cheapflights users on 10/26. 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.
dim. 11/169:00 amBOI - YYZ
2 stops19h 08mWestJet
lun. 11/1710:30 amYYZ - BOI
2 stops34h 24mWestJet
Deal found 10/26$531
This Delta deal was found by Cheapflights users on 10/26. 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.
sam. 12/138:45 amBOI - YUL
2 stops12h 47mDelta
mer. 12/177:10 amYUL - BOI
2 stops17h 01mDelta
Deal found 10/26$655
This American Airlines deal was found by Cheapflights users on 10/26. 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.
sam. 12/131:57 pmBOI - YUL
1 stop23h 13mAmerican Airlines
mer. 12/177:00 amYUL - BOI
2 stops14h 58mAmerican Airlines
Deal found 10/26$746
This Delta deal was found by Cheapflights users on 10/27. 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.
ven. 11/213:04 pmBOI - YUL
1 stop6h 38mDelta
jeu. 11/277:00 amYUL - BOI
2 stops15h 24mDelta
Deal found 10/27$769
This Delta deal was found by Cheapflights users on 10/26. 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.
sam. 11/229:00 amBOI - YUL
2 stops12h 42mDelta
mer. 11/267:00 amYUL - BOI
2 stops13h 54mDelta
Deal found 10/26$835

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 octobre 28, 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

sam. 2/28

3:00 pm-11:04 pm

1 stop6h 04m

Toronto Pearson Intl

mer. 3/4

6:15 am-12:45 pm

1 stop8h 30m

$356

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

sam. 2/28

6:00 pm-3:35 pm

1 stop19h 35m

Toronto Pearson Intl

mer. 3/4

4:45 pm-10:20 pm

1 stop7h 35m

$356

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

dim. 11/16

6:28 am-3:35 pm

1 stop7h 07m

Toronto Pearson Intl

lun. 11/17

4:45 pm-10:20 pm

1 stop7h 35m

$356

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

mer. 12/10

2:04 pm-11:59 pm

1 stop7h 55m

Toronto Pearson Intl

mer. 12/17

6:30 am-2:18 pm

1 stop9h 48m

$356

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

mer. 2/18

1:39 pm-3:05 pm

1 stop23h 26m

Montreal Pierre Elliott Trudeau Intl

ven. 2/20

3:55 pm-12:54 pm

1 stop22h 59m

$586

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

sam. 12/13

8:45 am-11:32 pm

2 stops12h 47m

Montreal Pierre Elliott Trudeau Intl

mer. 12/17

7:10 am-10:11 pm

2 stops17h 01m

$655

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

mer. 2/18

2:40 pm-10:20 am

2 stops17h 40m

Montreal Pierre Elliott Trudeau Intl

ven. 2/20

7:00 pm-12:33 pm

2 stops19h 33m

$698

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

lun. 3/16

7:45 am-9:07 pm

1 stop11h 22m

Montreal Pierre Elliott Trudeau Intl

mar. 3/24

9:25 am-9:16 pm

2 stops13h 51m

$713

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

mar. 3/17

12:29 pm-10:20 am

1 stop19h 51m

Montreal Pierre Elliott Trudeau Intl

lun. 3/23

5:25 pm-10:01 am

1 stop18h 36m

$742

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

sam. 3/14

5:00 am-4:58 pm

1 stop9h 58m

Montreal Pierre Elliott Trudeau Intl

mer. 3/18

6:00 am-11:06 pm

1 stop19h 06m

$742

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 12 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 octobre 28, 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.

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 octobre 28, 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
11,199 reviews

Food

7.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Overall

8.0

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
11,199 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Food

7.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Overall

8.0

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
7,995 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Food

7.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Overall

8.0

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
8,996 reviews
Alaska Airlines
8.0
Very good
11,199 reviews

Food

7.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Overall

8.0

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 04m. Delta provides one of the quickest options available for as low as $356. The distance from Boise to Region of Ontario is about 1814 mi. This flight may include one or multiple stops.

  • 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.

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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 octobre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$384FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$255Average$278FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$442Average$511FlexibilityNo cancel feeOn-time69%

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