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$122+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
août 3 — août 101
dim. 8/3
dim. 8/10
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 juillet 29, 2025.

Round-trip from

$280
(Kiwi.com)

One-way from

$122
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$434
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 July 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 juillet 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/42:16 pmBOI - YYZ
2 stops13h 56mMultiple Airlines
lun. 9/89:45 amYYZ - BOI
1 stop12h 36mMultiple Airlines
Deal found 7/27$280
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/161:07 pmBOI - YYZ
1 stop19h 52mAmerican Airlines
mer. 9/171:25 pmYYZ - BOI
1 stop10h 23mAmerican Airlines
Deal found 7/27$326
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 10/195:38 pmBOI - YYZ
1 stop19h 22mAlaska Airlines
mar. 10/214:45 pmYYZ - BOI
1 stop8h 20mAlaska Airlines
Deal found 7/28$354
This United Airlines deal was found by Cheapflights users on 7/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/167:00 amBOI - YYZ
2 stops13h 23mUnited Airlines
mer. 9/176:30 amYYZ - BOI
1 stop9h 19mUnited Airlines
Deal found 7/27$360
This Delta deal was found by Cheapflights users on 7/29. 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.
ven. 9/1211:35 pmBOI - YYZ
1 stop10h 32mDelta
ven. 9/191:20 pmYYZ - BOI
2 stops12h 39mDelta
Deal found 7/29$374
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/129:16 pmBOI - YUL
3 stops18h 39mMultiple Airlines
ven. 9/196:35 pmYUL - BOI
2 stops20h 46mMultiple Airlines
Deal found 7/29$570
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/91:07 pmBOI - YUL
1 stop25h 26mAmerican Airlines
ven. 9/125:15 pmYUL - BOI
1 stop21h 12mAmerican Airlines
Deal found 7/27$611
This Delta deal was found by Cheapflights users on 7/27. 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.
mar. 9/97:30 amBOI - YUL
2 stops13h 46mDelta
ven. 9/126:20 amYUL - BOI
2 stops11h 20mDelta
Deal found 7/27$630
This Mytrip deal was found by Cheapflights users on 7/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 9/42:16 pmBOI - YHM
3 stops24h 28mMultiple Airlines
lun. 9/86:00 amYHM - BOI
2 stops14h 16mMultiple Airlines
Deal found 7/26$649
This United Airlines deal was found by Cheapflights users on 7/29. 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.
ven. 9/128:20 amBOI - YUL
2 stops22h 08mUnited Airlines
ven. 9/198:20 amYUL - BOI
2 stops14h 54mUnited Airlines
Deal found 7/29$715
This WestJet deal was found by Cheapflights users on 7/27. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 9/55:45 amBOI - YHM
2 stops16h 55mWestJet
lun. 9/86:00 amYHM - BOI
2 stops42h 32mWestJet
Deal found 7/27$1,229

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 juillet 29, 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

jeu. 9/4

2:16 pm-6:12 am

2 stops13h 56m

Toronto Pearson Intl

lun. 9/8

9:45 am-8:21 pm

1 stop12h 36m

$280

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

mar. 9/16

1:07 pm-10:59 am

1 stop19h 52m

Toronto Pearson Intl

mer. 9/17

1:25 pm-9:48 pm

1 stop10h 23m

$326

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

dim. 10/19

5:38 pm-3:00 pm

1 stop19h 22m

Toronto Pearson Intl

mar. 10/21

4:45 pm-11:05 pm

1 stop8h 20m

$354

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

mar. 9/16

7:00 am-10:23 pm

2 stops13h 23m

Toronto Pearson Intl

mer. 9/17

6:30 am-1:49 pm

1 stop9h 19m

$360

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

ven. 9/12

11:35 pm-12:07 pm

1 stop10h 32m

Toronto Pearson Intl

ven. 9/19

1:20 pm-11:59 pm

2 stops12h 39m

$374

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

ven. 9/12

9:16 pm-5:55 pm

3 stops18h 39m

Montreal Pierre Elliott Trudeau Intl

ven. 9/19

6:35 pm-1:21 pm

2 stops20h 46m

$570

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

mar. 9/9

1:07 pm-4:33 pm

1 stop25h 26m

Montreal Pierre Elliott Trudeau Intl

ven. 9/12

5:15 pm-12:27 pm

1 stop21h 12m

$611

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

mar. 9/9

7:30 am-11:16 pm

2 stops13h 46m

Montreal Pierre Elliott Trudeau Intl

ven. 9/12

6:20 am-3:40 pm

2 stops11h 20m

$630

BoiseHamilton

BOI - YHM

BOIYHM

Boise Air Term. Gowen Fld

jeu. 9/4

2:16 pm-4:44 pm

3 stops24h 28m

Hamilton

lun. 9/8

6:00 am-6:16 pm

2 stops14h 16m

$649

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

ven. 9/12

8:20 am-8:28 am

2 stops22h 08m

Montreal Pierre Elliott Trudeau Intl

ven. 9/19

8:20 am-9:14 pm

2 stops14h 54m

$715

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 22 results
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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 August is currently the most expensive (average of $348). 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 juillet 29, 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.

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 juillet 29, 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
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
WestJet
7.2
Good
2,973 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 ($152), Alaska Airlines ($158), and Sun Country Air ($203).

  • 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 August is currently the most expensive (average of $348). 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 juillet 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$173Average$384FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$255Average$278FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$317Average$501FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$490Average$893FlexibilityNo cancel feeOn-time67%

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