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Cheap flights from Ontario to Idaho from C$ 242

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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Idaho

Enter your travel dates to find the best prices.

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 28 January 2026.

Thu 23/41:30 p.m.
YYZ
-
BOI
1 stop10h 58m
Multiple Airlines
Fri 1/55:34 a.m.
BOI
-
YYZ
1 stop10h 58m
Multiple Airlines
Deal found 26/1C$ 398
Thu 23/41:30 p.m.
YYZ
-
BOI
1 stop10h 58m
Delta
Thu 30/411:35 p.m.
BOI
-
YYZ
1 stop10h 44m
Delta
Deal found 26/1C$ 402
Mon 2/34:45 p.m.
YYZ
-
BOI
1 stop7h 55m
Alaska Airlines
Mon 9/33:47 p.m.
BOI
-
YYZ
1 stop21h 48m
Alaska Airlines
Deal found 27/1C$ 406
Wed 6/54:55 p.m.
YYZ
-
GEG
1 stop9h 16m
Alaska Airlines
Wed 13/58:38 p.m.
GEG
-
YYZ
1 stop16h 07m
Alaska Airlines
Deal found 27/1C$ 406
Mon 2/39:00 p.m.
YYZ
-
BOI
1 stop17h 33m
Lufthansa
Mon 9/312:59 p.m.
BOI
-
YYZ
1 stop16h 31m
Lufthansa
Deal found 26/1C$ 410
Thu 23/46:30 a.m.
YYZ
-
BOI
1 stop16h 45m
United Airlines
Fri 1/56:30 a.m.
BOI
-
YYZ
2 stops14h 06m
United Airlines
Deal found 27/1C$ 411
Tue 5/52:15 p.m.
YYZ
-
GEG
2 stops12h 19m
Delta
Thu 14/56:05 a.m.
GEG
-
YYZ
1 stop9h 20m
Delta
Deal found 27/1C$ 411
Mon 2/37:50 a.m.
YYZ
-
BOI
2 stops15h 05m
Delta
Mon 9/311:30 p.m.
BOI
-
YYZ
2 stops13h 38m
Delta
Deal found 26/1C$ 413
Thu 12/36:20 a.m.
YYZ
-
BOI
2 stops16h 49m
Delta
Mon 16/311:30 p.m.
BOI
-
YYZ
2 stops13h 38m
Delta
Deal found 27/1C$ 429
Mon 23/23:30 p.m.
YYZ
-
IDA
2 stops20h 18m
United Airlines
Mon 2/35:33 p.m.
IDA
-
YYZ
2 stops25h 48m
United Airlines
Deal found 25/1C$ 433
Sun 15/26:10 a.m.
YYZ
-
BOI
2 stops16h 45m
Delta
Sat 21/23:01 p.m.
BOI
-
YYZ
1 stop6h 10m
Delta
Deal found 26/1C$ 440
Fri 13/24:45 p.m.
YYZ
-
GEG
1 stop10h 14m
Alaska Airlines
Mon 16/27:06 p.m.
GEG
-
YYZ
1 stop17h 29m
Alaska Airlines
Deal found 27/1C$ 446

Find flight deals from Ontario to Idaho

Keep the following information in mind while searching for Ontario to Idaho flight deals. Data was last updated 28 January 2026.

Round-trip from

C$ 398

One-way from

C$ 242

Popular in

June

Cheapest in

March
Air France
  • Air France
  • 23/4-30/4
  • 2 total stops
  • 21h 56m total
  • Ontario to Idaho
Search Deals
Delta
  • Delta
  • 12/3
  • 1 total stop
  • 9h 40m total
  • Ontario to Idaho
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 224 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (C$ 71 potential savings vs. average RT price).
Search Deals

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 28 January 2026.
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

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Thu 23/4

1:30 p.m.-10:28 p.m.

1 stop10h 58m

Boise Air Term. Gowen Fld

Fri 1/5

5:34 a.m.-6:32 p.m.

1 stop10h 58m

C$ 398

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Thu 23/4

1:30 p.m.-10:28 p.m.

1 stop10h 58m

Boise Air Term. Gowen Fld

Thu 30/4

5:34 a.m.-6:32 p.m.

1 stop10h 58m

C$ 398

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Thu 23/4

1:30 p.m.-10:28 p.m.

1 stop10h 58m

Boise Air Term. Gowen Fld

Thu 30/4

11:35 p.m.-12:19 p.m.

1 stop10h 44m

C$ 402

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Mon 2/3

4:45 p.m.-10:40 p.m.

1 stop7h 55m

Boise Air Term. Gowen Fld

Mon 9/3

3:47 p.m.-3:35 p.m.

1 stop21h 48m

C$ 406

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Mon 2/3

9:00 p.m.-12:33 p.m.

1 stop17h 33m

Boise Air Term. Gowen Fld

Mon 9/3

12:59 p.m.-7:30 a.m.

1 stop16h 31m

C$ 410

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Tue 5/5

4:18 p.m.-9:16 p.m.

1 stop7h 58m

Spokane

Sat 16/5

5:00 a.m.-9:32 p.m.

1 stop13h 32m

C$ 411

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Tue 5/5

2:15 p.m.-9:02 p.m.

2 stops9h 47m

Spokane

Fri 15/5

6:05 a.m.-6:25 p.m.

1 stop9h 20m

C$ 411

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Sun 3/5

2:15 p.m.-12:20 a.m.

2 stops13h 05m

Spokane

Thu 14/5

6:05 a.m.-6:25 p.m.

1 stop9h 20m

C$ 411

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Sun 3/5

12:22 p.m.-11:05 p.m.

2 stops13h 43m

Spokane

Fri 15/5

6:05 a.m.-6:25 p.m.

1 stop9h 20m

C$ 411

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Wed 6/5

2:15 p.m.-12:20 a.m.

2 stops13h 05m

Spokane

Tue 12/5

6:05 a.m.-6:25 p.m.

1 stop9h 20m

C$ 411

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/1

Showing 1-10 of 49 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

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 28 January 2026.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited Airlines 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.
Alaska Airlines
8.0
Very good
11,801 reviews
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,801 reviews
Alaska Airlines
8.0
Very good
11,801 reviews
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,123 reviews
Alaska Airlines
8.0
Very good
11,801 reviews
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,209 reviews
Alaska Airlines
8.0
Very good
11,801 reviews
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Air Canada
7.1
Good
10,666 reviews
Alaska Airlines
8.0
Very good
11,801 reviews
Check prices

Comfort

7.8

Crew

8.5

Boarding

8.1

Entertainment

7.0

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 Lufthansa fly from Region of Ontario to Idaho in about 7h 55m. The time it takes to get you to your destination can typically vary by up to 9h 38m. Region of Ontario and Idaho are separated by a distance of 2919 km. This flight may include one or multiple stops.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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 4 airlines flying from Ontario to Idaho

Discover the top 4 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 28 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 201AverageC$ 499FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapestC$ 237AverageC$ 494FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 249AverageC$ 672FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapestC$ 402AverageC$ 555FlexibilityNo cancel feeOn-time75%
Search Alaska 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.

Can Cheapflights notify me if prices for flights from Ontario to Idaho become cheaper?

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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