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Idaho

$172+ Cheap flights from Ontario to Idaho

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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Ontario to Idaho

Keep the following information in mind while searching for Ontario to Idaho flight deals. Data was last updated May 1, 2025.

Round-trip from

$287
(Delta)

One-way from

$172
(Delta)

Popular in

June

Cheapest in

November

Average price

$394
From Ontario to Idaho
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One-way flight from Ontario to Idaho
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Highest demand for flights based on searches. 12% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Ontario to Idaho

Cheapest flights from Ontario to Idaho
Explore the most affordable flight options available from Ontario to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Delta deal was found by Cheapflights users on 4/29. 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.
Fri 5/166:30 amYYZ - GEG
2 stops12h 30mDelta
Wed 5/287:25 pmGEG - YYZ
2 stops10h 33mDelta
Deal found 4/29$287
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/145:15 pmYYZ - BOI
1 stop19h 41mAmerican Airlines
Sat 6/213:35 pmBOI - YYZ
1 stop19h 00mAmerican Airlines
Deal found 4/29$316
This Delta deal was found by Cheapflights users on 4/29. 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.
Sat 6/145:50 pmYYZ - BOI
1 stop8h 26mDelta
Sat 6/216:10 pmBOI - YYZ
2 stops13h 11mDelta
Deal found 4/29$317
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 5/166:30 amYYZ - GEG
1 stop11h 11mUnited Airlines
Wed 5/286:25 pmGEG - YYZ
2 stops14h 34mUnited Airlines
Deal found 4/29$318
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/166:30 amYYZ - GEG
1 stop11h 11mAir Canada
Wed 5/2811:37 amGEG - YYZ
1 stop6h 07mAir Canada
Deal found 4/29$340
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/77:35 pmYYZ - BOI
2 stops16h 11mUnited Airlines
Sat 8/910:42 amBOI - YYZ
1 stop10h 06mUnited Airlines
Deal found 4/28$383
This Delta deal was found by Cheapflights users on 4/30. 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 6/146:00 amYUL - BOI
2 stops13h 13mDelta
Sat 6/2110:24 amBOI - YUL
1 stop10h 54mDelta
Deal found 4/30$398
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 6/148:05 amYUL - BOI
2 stops10h 36mUnited Airlines
Sat 6/215:43 pmBOI - YUL
2 stops13h 36mUnited Airlines
Deal found 4/30$399
This WestJet deal was found by Cheapflights users on 4/29. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1512:00 pmYYZ - GEG
2 stops29h 50mWestJet
Wed 5/2811:15 amGEG - YYZ
2 stops10h 11mWestJet
Deal found 4/29$406
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/141:20 pmYYZ - GEG
2 stops13h 00mAmerican Airlines
Sat 6/216:45 amGEG - YYZ
2 stops12h 44mAmerican Airlines
Deal found 4/29$409
This WestJet deal was found by Cheapflights users on 4/29. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/286:30 amYYZ - BOI
2 stops14h 31mWestJet
Thu 8/72:00 pmBOI - YYZ
2 stops14h 12mWestJet
Deal found 4/29$453
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/97:00 amYUL - GEG
2 stops12h 40mWestJet
Thu 7/105:05 amGEG - YUL
2 stops16h 38mWestJet
Deal found 4/29$491

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Idaho 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 May 1, 2025.
Use the filters below to find and compare flights from Ontario to Idaho that are best for you.

Fly from

Ontario

Fly to

Idaho

Route

Depart

Return

Price

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Fri 5/16

6:30 am-4:00 pm

2 stops12h 30m

Spokane

Wed 5/28

7:25 pm-8:58 am

2 stops10h 33m

$287

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Sat 6/14

5:15 pm-10:56 am

1 stop19h 41m

Boise Air Term. Gowen Fld

Sat 6/21

3:35 pm-12:35 pm

1 stop19h 00m

$316

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Sat 6/14

5:50 pm-12:16 am

1 stop8h 26m

Boise Air Term. Gowen Fld

Sat 6/21

6:10 pm-9:21 am

2 stops13h 11m

$317

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Fri 5/16

6:30 am-2:41 pm

1 stop11h 11m

Spokane

Tue 5/27

1:37 pm-2:30 pm

2 stops21h 53m

$318

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Fri 5/16

6:30 am-2:41 pm

1 stop11h 11m

Spokane

Wed 5/28

11:37 am-8:44 pm

1 stop6h 07m

$340

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Sat 6/14

6:00 am-5:13 pm

2 stops13h 13m

Boise Air Term. Gowen Fld

Sat 6/21

10:24 am-11:18 pm

1 stop10h 54m

$398

MontrealBoise

YUL - BOI

YULBOI

Montreal Pierre Elliott Trudeau Intl

Sat 6/14

8:05 am-4:41 pm

2 stops10h 36m

Boise Air Term. Gowen Fld

Sat 6/21

5:43 pm-9:19 am

2 stops13h 36m

$399

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Thu 5/15

12:00 pm-2:50 pm

2 stops29h 50m

Spokane

Wed 5/28

11:15 am-12:26 am

2 stops10h 11m

$406

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Sat 6/14

1:20 pm-11:20 pm

2 stops13h 00m

Spokane

Sat 6/21

6:45 am-10:29 pm

2 stops12h 44m

$409

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Mon 7/28

6:30 am-7:01 pm

2 stops14h 31m

Boise Air Term. Gowen Fld

Thu 8/7

2:00 pm-6:12 am

2 stops14h 12m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 42 results
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Best time to book a flight from Ontario to Idaho

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

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

Currently, October is the cheapest month in which you can book a flight from Region of Ontario to Idaho (average of $314). Flying from Region of Ontario to Idaho in June is currently the most expensive (average of $406). 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 ON to ID?

Find hourly flight availability from Ontario to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

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

Rainfall in Idaho by month

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

In terms of precipitation, rainfall in Idaho ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Idaho when rainfall is around 0.2 in.

Temperature in Idaho by month

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

If weather is an important factor for your trip to Idaho, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Idaho

Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated May 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Ontario to Idaho to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
WestJet
7.2
Good
2,826 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Idaho. 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 Region of Ontario to Idaho one-way?

    $172 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and WestJet, with prices starting from $186 and $452, respectively.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Region of Ontario to Idaho (average of $314). Flying from Region of Ontario to Idaho in June is currently the most expensive (average of $406). 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 Ontario to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Ontario to Idaho

Discover the top airline that operate flights from Ontario to Idaho. 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$372Average$372FlexibilityNo cancel feeOn-time67%

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