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Cheap flights from Ontario to Idaho from C$ 230

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 24/10. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Round-trip from

C$ 416

One-way from

C$ 230

Popular in

June

Cheapest in

November

Average price

C$ 557
Delta
  • Delta
  • 28/10-4/11
  • 3 total stops
  • 20h 52m total
  • Ontario to Idaho
Search Deals
24/10
  • 24/10
  • 2 total stops
  • 35h 15m total
  • Ontario to Idaho
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (C$ 273 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (C$ 70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 11 September 2025.

Tue 28/107:55 a.m.YYZ - GEG
2 stops14h 51mDelta
Tue 4/112:17 p.m.GEG - YYZ
1 stop6h 01mDelta
Deal found 10/9C$ 416
Tue 28/106:20 a.m.YYZ - GEG
2 stops11h 37mDelta
Mon 3/115:45 a.m.GEG - YYZ
2 stops13h 10mDelta
Deal found 10/9C$ 427
Sat 25/106:20 a.m.YYZ - GEG
2 stops9h 15mDelta
Sat 1/112:17 p.m.GEG - YYZ
1 stop6h 01mDelta
Deal found 10/9C$ 437
Mon 27/105:50 p.m.YYZ - GEG
1 stop8h 53mDelta
Tue 4/112:17 p.m.GEG - YYZ
1 stop6h 01mDelta
Deal found 10/9C$ 504
Mon 27/106:20 a.m.YYZ - GEG
1 stop9h 45mDelta
Fri 31/102:17 p.m.GEG - YYZ
1 stop6h 01mDelta
Deal found 10/9C$ 516
Sat 25/104:45 p.m.YYZ - GEG
1 stop9h 00mAlaska Airlines
Tue 4/118:59 p.m.GEG - YYZ
1 stop15h 36mAlaska Airlines
Deal found 10/9C$ 528
Fri 24/107:45 p.m.YYZ - GEG
1 stop20h 27mMultiple Airlines
Sun 2/119:04 p.m.GEG - YYZ
1 stop30h 16mMultiple Airlines
Deal found 10/9C$ 531
Thu 16/106:30 a.m.YYZ - BOI
1 stop9h 13mUnited Airlines
Mon 20/102:44 p.m.BOI - YYZ
1 stop14h 16mUnited Airlines
Deal found 9/9C$ 542
Mon 27/1010:00 a.m.YYZ - GEG
2 stops17h 22mMultiple Airlines
Sun 2/115:51 a.m.GEG - YYZ
1 stop6h 44mMultiple Airlines
Deal found 10/9C$ 545
Sat 25/107:00 a.m.YYZ - GEG
3 stops16h 24mUnited Airlines
Sat 1/115:10 a.m.GEG - YYZ
2 stops13h 11mUnited Airlines
Deal found 10/9C$ 546
Fri 17/107:45 p.m.YYZ - BOI
1 stop19h 50mMultiple Airlines
Mon 20/106:30 a.m.BOI - YYZ
2 stops15h 22mMultiple Airlines
Deal found 9/9C$ 556
Fri 24/104:18 p.m.YYZ - GEG
1 stop7h 06mUnited Airlines
Sat 1/1112:45 p.m.GEG - YYZ
1 stop15h 45mUnited Airlines
Deal found 10/9C$ 556

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 629,999 searches. Data last updated 11 September 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

Wed 29/10

6:15 a.m.-11:41 a.m.

1 stop8h 26m

Spokane

Tue 4/11

5:45 a.m.-11:39 p.m.

2 stops14h 54m

C$ 416

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Fri 20/2

1:00 p.m.-11:42 p.m.

2 stops12h 42m

Boise Air Term. Gowen Fld

Tue 24/2

11:45 a.m.-11:04 p.m.

2 stops9h 19m

C$ 418

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Fri 27/2

7:59 a.m.-11:16 p.m.

2 stops18h 17m

Spokane

Tue 3/3

2:05 p.m.-11:04 p.m.

1 stop5h 59m

C$ 425

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Wed 29/10

6:15 a.m.-11:41 a.m.

1 stop8h 26m

Spokane

Sat 1/11

7:15 a.m.-11:18 p.m.

2 stops13h 03m

C$ 427

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Tue 28/10

6:20 a.m.-2:57 p.m.

2 stops11h 37m

Spokane

Sun 2/11

5:00 a.m.-8:55 p.m.

2 stops12h 55m

C$ 427

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Wed 29/10

7:55 a.m.-7:46 p.m.

2 stops14h 51m

Spokane

Sun 2/11

5:10 a.m.-10:18 p.m.

2 stops14h 08m

C$ 427

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Sun 26/10

5:50 p.m.-11:43 p.m.

1 stop8h 53m

Spokane

Tue 4/11

2:17 p.m.-11:18 p.m.

1 stop6h 01m

C$ 427

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Tue 28/10

6:20 a.m.-12:35 p.m.

2 stops9h 15m

Spokane

Mon 3/11

2:17 p.m.-11:18 p.m.

1 stop6h 01m

C$ 427

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Sat 25/10

12:37 p.m.-7:46 p.m.

1 stop10h 09m

Spokane

Tue 4/11

2:17 p.m.-11:18 p.m.

1 stop6h 01m

C$ 427

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Fri 20/2

4:45 p.m.-10:20 p.m.

1 stop7h 35m

Boise Air Term. Gowen Fld

Tue 24/2

8:30 p.m.-3:35 p.m.

1 stop17h 05m

C$ 504

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 51 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 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 11 September 2025.

When flying from Region of Ontario to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Region of Ontario to Idaho?

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 11 September 2025.
Get a feel of what it's like to fly with Delta,United Airlines, andAir Canada from Ontario to Idaho by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews
Check prices

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
6.0
Good

Morgan Rae,Aug 2025

BRU - JFK

Typically I choose delta because they do a great job but this time the flight attendant in my zone was very rude and didnt offer the same treatment as she did to others

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.

  • How long is the flight from Region of Ontario to Idaho?

    Airlines like Delta, Alaska Airlines, and United Airlines fly from Region of Ontario to Idaho in about 7h 35m. The time it takes to get you to your destination can typically vary by up to 1h 38m. Region of Ontario and Idaho are separated by a distance of 2919 km. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at C$ 254. American Airlines flights start at C$ 256 while deals on Alaska Airlines start at C$ 284 one-way.

  • 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.

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 3 airlines flying from Ontario to Idaho

Discover the top 3 airlines 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 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 363AverageC$ 522FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 382AverageC$ 541FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 431AverageC$ 747FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Ontario to Idaho?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Idaho from Ontario today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Ontario to Idaho?

Cheapflights helps you find that perfect flight to Idaho from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Ontario to Idaho with no change fees?

Yes! Cheapflights helps users easily find flights from Ontario to Idaho with no change fees.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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