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Cheap flights from Ontario to Idaho from C$ 246

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
16 Apr — 23 Apr1
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 17 March 2026.

Fri 3/44:55 p.m.
YYZ
-
BOI
1 stop8h 02m
Alaska Airlines
Sat 11/46:04 p.m.
BOI
-
YYZ
1 stop19h 41m
Alaska Airlines
Deal found 16/3C$ 390
Tue 14/46:30 a.m.
YYZ
-
BOI
1 stop12h 18m
United Airlines
Sat 18/47:03 p.m.
BOI
-
YYZ
1 stop9h 57m
United Airlines
Deal found 16/3C$ 401
Wed 15/44:11 p.m.
YYZ
-
GEG
2 stops11h 09m
Delta
Sat 18/49:45 a.m.
GEG
-
YYZ
2 stops11h 14m
Delta
Deal found 16/3C$ 401
Tue 14/41:30 p.m.
YYZ
-
BOI
1 stop10h 58m
Delta
Sat 18/43:23 p.m.
BOI
-
YYZ
1 stop5h 47m
Delta
Deal found 15/3C$ 422
Wed 15/48:50 a.m.
YYZ
-
GEG
2 stops15h 21m
United Airlines
Sat 18/41:46 p.m.
GEG
-
YYZ
2 stops17h 08m
United Airlines
Deal found 12/3C$ 424
Wed 20/54:18 p.m.
YYZ
-
GEG
1 stop7h 58m
United Airlines
Tue 26/54:08 p.m.
GEG
-
YYZ
2 stops14h 46m
United Airlines
Deal found 14/3C$ 433
Wed 15/46:15 a.m.
YYZ
-
IDA
2 stops18h 25m
Delta
Sat 18/46:58 p.m.
IDA
-
YYZ
2 stops14h 28m
Delta
Deal found 16/3C$ 442
Tue 19/56:30 a.m.
YYZ
-
BOI
1 stop10h 56m
United Airlines
Sat 23/55:46 p.m.
BOI
-
YYZ
2 stops13h 33m
United Airlines
Deal found 12/3C$ 442
Fri 3/412:25 p.m.
YYZ
-
BOI
1 stop12h 10m
Delta
Sat 11/48:00 a.m.
BOI
-
YYZ
2 stops13h 06m
Delta
Deal found 16/3C$ 448
Sat 28/37:50 a.m.
YYZ
-
BOI
2 stops15h 19m
Delta
Sat 11/48:00 a.m.
BOI
-
YYZ
2 stops13h 06m
Delta
Deal found 14/3C$ 449
Wed 20/512:00 p.m.
YYZ
-
GEG
2 stops12h 13m
WestJet
Tue 26/57:25 a.m.
GEG
-
YYZ
2 stops20h 30m
WestJet
Deal found 14/3C$ 472
Tue 31/36:10 a.m.
YYZ
-
BOI
1 stop8h 28m
Delta
Thu 2/410:25 a.m.
BOI
-
YYZ
2 stops11h 32m
Delta
Deal found 15/3C$ 474

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 17 March 2026.

Round-trip from

C$ 390

One-way from

C$ 246

Popular in

June

Cheapest in

November

Average price

C$ 519
Alaska Airlines
  • Alaska Airlines
  • 3/4-11/4
  • 2 total stops
  • 27h 43m total
  • Ontario to Idaho
Search Deals
American Airlines
  • American Airlines
  • 29/4
  • 1 total stop
  • 9h 17m total
  • Ontario to Idaho
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (C$ 220 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 March 2026
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 17 March 2026.
Use the filters below to find and compare flights from Ontario to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Tue 14/4

6:30 a.m.-4:48 p.m.

1 stop12h 18m

Boise Air Term. Gowen Fld

Sat 18/4

7:03 p.m.-7:00 a.m.

1 stop9h 57m

C$ 401

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Tue 14/4

1:30 p.m.-11:57 p.m.

2 stops12h 27m

Boise Air Term. Gowen Fld

Sat 18/4

3:23 p.m.-11:10 p.m.

1 stop5h 47m

C$ 401

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Wed 15/4

4:11 p.m.-12:20 a.m.

2 stops11h 09m

Spokane

Sat 18/4

9:45 a.m.-11:59 p.m.

2 stops11h 14m

C$ 401

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Wed 15/4

8:50 a.m.-9:11 p.m.

2 stops15h 21m

Spokane

Sat 18/4

1:46 p.m.-9:54 a.m.

2 stops17h 08m

C$ 424

TorontoIdaho Falls

YYZ - IDA

YYZIDA

Toronto Pearson Intl

Wed 15/4

6:15 a.m.-10:40 p.m.

2 stops18h 25m

Idaho Falls Fanning Field

Sat 18/4

6:58 p.m.-11:26 a.m.

2 stops14h 28m

C$ 442

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Tue 19/5

6:30 a.m.-3:26 p.m.

1 stop10h 56m

Boise Air Term. Gowen Fld

Sat 23/5

5:46 p.m.-9:19 a.m.

2 stops13h 33m

C$ 442

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Fri 3/4

12:25 p.m.-10:35 p.m.

1 stop12h 10m

Boise Air Term. Gowen Fld

Sat 11/4

8:00 a.m.-11:06 p.m.

2 stops13h 06m

C$ 448

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Tue 19/5

12:00 p.m.-10:13 p.m.

2 stops12h 13m

Boise Air Term. Gowen Fld

Sun 24/5

6:00 p.m.-10:45 p.m.

2 stops26h 45m

C$ 475

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Mon 6/4

10:15 p.m.-7:05 p.m.

2 stops23h 50m

Spokane

Fri 10/4

11:30 a.m.-6:10 a.m.

2 stops15h 40m

C$ 479

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Thu 30/7

6:30 a.m.-2:03 p.m.

1 stop9h 33m

Boise Air Term. Gowen Fld

Tue 4/8

5:45 p.m.-8:55 a.m.

2 stops13h 10m

C$ 508

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/3

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 17 March 2026.
Get a feel of what it's like to fly with Alaska Airlines,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.
Alaska Airlines
7.9
Good
12,058 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Alaska Airlines
7.9
Good
12,058 reviews
Alaska Airlines
7.9
Good
12,058 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
United Airlines
7.4
Good
9,432 reviews
Alaska Airlines
7.9
Good
12,058 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Air Canada
7.1
Good
10,811 reviews
Alaska Airlines
7.9
Good
12,058 reviews
Check prices

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

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 United Airlines, Delta, and American Airlines fly from Region of Ontario to Idaho in about 12h 18m. The time it takes to get you to your destination can typically vary by up to 9h 26m. 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

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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 17 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 200AverageC$ 633FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 403AverageC$ 554FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 404AverageC$ 489FlexibilityNo 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.

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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