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$143+ Cheap flights from Idaho 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 6/7. 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 Idaho to Ontario

Keep the following information in mind while searching for Idaho 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
(United Airlines)

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 Idaho to Ontario
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One-way flight from Idaho 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 Idaho to Ontario

Cheapest flights from Idaho to Ontario
Explore the most affordable flight options available from Idaho to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/15:30 amGEG - YYZ
1 stop14h 18mUnited Airlines
Sun 6/86:30 amYYZ - GEG
1 stop11h 17mUnited Airlines
Deal found 4/23$341
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 4/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1912:29 pmGEG - YYZ
1 stop8h 29mDelta
Mon 6/236:30 amYYZ - GEG
2 stops13h 22mDelta
Deal found 4/23$367
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 Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/23:10 pmGEG - YYZ
1 stop20h 50mAlaska Airlines
Tue 9/94:45 pmYYZ - GEG
1 stop9h 13mAlaska Airlines
Deal found 4/22$377
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 4/23. 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.
Sat 6/71:51 pmIDA - YYZ
2 stops19h 08mAmerican Airlines
Sat 6/146:49 amYYZ - IDA
1 stop16h 46mAmerican Airlines
Deal found 4/23$393
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/76:00 amIDA - YYZ
1 stop8h 40mDelta
Sat 6/145:50 pmYYZ - IDA
1 stop6h 12mDelta
Deal found 4/23$405
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 4/23. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/16:10 amGEG - YYZ
2 stops21h 04mWestJet
Sun 6/84:00 pmYYZ - GEG
2 stops27h 52mWestJet
Deal found 4/23$506

Cheapflights Fare Finder

Customize your flight search to find flights from Idaho 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 Idaho to Ontario that are best for you.

Fly from

Idaho

Fly to

Ontario

Route

Depart

Return

Price

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Sun 6/1

5:30 am-10:48 pm

1 stop14h 18m

Toronto Pearson Intl

Sun 6/8

6:30 am-2:47 pm

1 stop11h 17m

$341

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

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Thu 6/19

12:29 pm-11:58 pm

1 stop8h 29m

Toronto Pearson Intl

Mon 6/23

6:30 am-4:52 pm

2 stops13h 22m

$367

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

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Tue 9/2

3:10 pm-3:00 pm

1 stop20h 50m

Toronto Pearson Intl

Tue 9/9

4:45 pm-10:58 pm

1 stop9h 13m

$377

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

Idaho FallsToronto

IDA - YYZ

IDAYYZ

Idaho Falls Fanning Field

Sat 6/7

1:51 pm-10:59 am

2 stops19h 08m

Toronto Pearson Intl

Sat 6/14

6:49 am-9:35 pm

1 stop16h 46m

$393

Idaho FallsToronto

IDA - YYZ

IDAYYZ

Idaho Falls Fanning Field

Sat 6/7

6:00 am-4:40 pm

1 stop8h 40m

Toronto Pearson Intl

Sat 6/14

5:50 pm-10:02 pm

1 stop6h 12m

$405

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 34 results
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Best time to book a flight from Idaho to Ontario

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

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

Currently, January is the cheapest month in which you can book a flight from Idaho to Region of Ontario (average of $243). Flying from Idaho 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 ID to ON?

Find hourly flight availability from Idaho 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 Idaho 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 Idaho to Ontario, see what other customers have to say about Alaska Airlines, Delta and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
WestJet
7.2
Good
2,816 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Idaho to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $143. United Airlines flights start at $154 while deals on American Airlines start at $160 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Idaho to Region of Ontario (average of $243). Flying from Idaho 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 Idaho 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 Idaho to Ontario

Discover the top 4 airlines that operate flights from Idaho 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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