Find flights
When to book
FAQs

Cheap flights from Idaho to Ontario from C$ 219

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
28 Aug — 4 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Idaho to Ontario

Enter your travel dates to find the best prices.

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 29 July 2026.

Mon 14/97:05 p.m.
BOI
-
YYZ
1 stop9h 55m
United Airlines
Wed 23/910:45 a.m.
YYZ
-
BOI
1 stop13h 00m
United Airlines
Deal found 27/7C$ 515
Tue 25/85:00 a.m.
BOI
-
YYZ
1 stop8h 14m
United Airlines
Tue 1/97:00 a.m.
YYZ
-
BOI
1 stop6h 28m
United Airlines
Deal found 28/7C$ 518
Thu 1/1012:26 p.m.
BOI
-
YYZ
1 stop6h 18m
United Airlines
Tue 27/106:30 a.m.
YYZ
-
BOI
1 stop12h 12m
United Airlines
Deal found 26/7C$ 526
Sat 12/910:36 a.m.
BOI
-
YYZ
2 stops11h 23m
United Airlines
Tue 22/94:18 p.m.
YYZ
-
BOI
1 stop7h 27m
United Airlines
Deal found 27/7C$ 532
Sat 31/105:00 a.m.
GEG
-
YYZ
1 stop7h 02m
United Airlines
Wed 4/116:30 a.m.
YYZ
-
GEG
1 stop15h 11m
United Airlines
Deal found 27/7C$ 536
Tue 8/121:43 p.m.
BOI
-
YYZ
1 stop8h 16m
Delta
Mon 14/126:30 a.m.
YYZ
-
BOI
1 stop8h 03m
Delta
Deal found 27/7C$ 536
Tue 15/910:31 a.m.
BOI
-
YYZ
2 stops11h 28m
United Airlines
Tue 29/910:15 a.m.
YYZ
-
BOI
2 stops13h 20m
United Airlines
Deal found 28/7C$ 539
Wed 30/96:50 p.m.
BOI
-
YYZ
2 stops13h 04m
United Airlines
Sat 31/108:35 a.m.
YYZ
-
BOI
1 stop16h 16m
United Airlines
Deal found 26/7C$ 540
Sat 29/86:15 a.m.
BOI
-
YYZ
1 stop7h 55m
United Airlines
Tue 1/910:15 a.m.
YYZ
-
BOI
2 stops14h 25m
United Airlines
Deal found 28/7C$ 546
Wed 30/96:50 p.m.
BOI
-
YYZ
2 stops13h 04m
United Airlines
Tue 27/1010:00 a.m.
YYZ
-
BOI
2 stops10h 03m
United Airlines
Deal found 26/7C$ 547
Tue 10/111:38 p.m.
BOI
-
YYZ
1 stop8h 21m
Delta
Mon 16/116:15 a.m.
YYZ
-
BOI
1 stop9h 19m
Delta
Deal found 28/7C$ 570
Sat 19/127:00 a.m.
GEG
-
YYZ
2 stops14h 01m
Delta
Sat 9/16:30 a.m.
YYZ
-
GEG
1 stop8h 14m
Delta
Deal found 26/7C$ 584

Find flight deals from Idaho to Ontario

Keep the following information in mind while searching for Idaho to Ontario flight deals. Data was last updated 29 July 2026.

Round-trip from

C$ 515

One-way from

C$ 219

Popular in

March

Cheapest in

January

Average price

C$ 828
United Airlines
  • United Airlines
  • 14/9-18/9
  • 2 total stops
  • 20h 56m total
  • Idaho to Ontario
Search Deals
United Airlines
  • United Airlines
  • 6/8
  • 1 total stop
  • 9h 55m total
  • Idaho to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 74 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 629,999 searches. Data last updated 29 July 2026.
Use the filters below to find and compare flights from Idaho to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sat 29/8

12:24 p.m.-11:59 p.m.

1 stop9h 35m

Toronto Pearson Intl

Tue 1/9

10:45 a.m.-5:58 p.m.

1 stop9h 13m

C$ 518

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Tue 15/9

7:05 p.m.-7:00 a.m.

1 stop9h 55m

Toronto Pearson Intl

Tue 29/9

4:18 p.m.-9:35 p.m.

1 stop7h 17m

C$ 518

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Tue 25/8

5:00 a.m.-3:14 p.m.

1 stop8h 14m

Toronto Pearson Intl

Mon 31/8

6:30 a.m.-7:24 p.m.

1 stop14h 54m

C$ 518
Quickest round-trip

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Tue 6/10

2:00 p.m.-11:15 p.m.

1 stop6h 15m

Toronto Pearson Intl

Fri 16/10

6:15 a.m.-11:46 a.m.

1 stop8h 31m

C$ 536

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Tue 6/10

5:00 a.m.-3:14 p.m.

1 stop7h 14m

Toronto Pearson Intl

Fri 16/10

9:00 p.m.-12:34 p.m.

2 stops18h 34m

C$ 549

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Sat 31/10

1:00 p.m.-7:30 a.m.

1 stop15h 30m

Toronto Pearson Intl

Wed 4/11

6:45 a.m.-9:11 p.m.

2 stops17h 26m

C$ 549

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Wed 7/10

6:30 a.m.-10:47 p.m.

2 stops13h 17m

Toronto Pearson Intl

Sat 17/10

11:09 a.m.-8:43 p.m.

2 stops12h 34m

C$ 557

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Sat 19/12

7:00 a.m.-12:01 a.m.

2 stops14h 01m

Toronto Pearson Intl

Sat 9/1

6:30 a.m.-11:44 a.m.

1 stop8h 14m

C$ 584

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Thu 20/8

2:27 p.m.-2:33 p.m.

1 stop21h 06m

Toronto Pearson Intl

Tue 25/8

7:15 p.m.-1:37 p.m.

1 stop21h 22m

C$ 587

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Wed 19/8

6:45 a.m.-11:03 p.m.

2 stops13h 18m

Toronto Pearson Intl

Sun 23/8

6:15 a.m.-12:57 p.m.

1 stop9h 42m

C$ 601

Flights are sorted by cheapest round-trip flights first.

Deals found on 23/7

Showing 1-10 of 51 resultsSorted by cheapest first
1
2
3
...
6

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, September is the cheapest month in which you can book a flight from Idaho to Region of Ontario (average of C$ 308). Flying from Idaho to Region of Ontario in November is currently the most expensive (average of C$ 1,112). 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.

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.

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

    A quick flight from Idaho to Region of Ontario can take about 6h 15m. United Airlines provides one of the quickest options available for as low as C$ 536. The distance from Idaho to Region of Ontario is about 2947 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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, September is the cheapest month in which you can book a flight from Idaho to Region of Ontario (average of C$ 308). Flying from Idaho to Region of Ontario in November is currently the most expensive (average of C$ 1,112). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Toronto Island flights
Newark to Pearson Intl flights
Los Angeles to Vancouver Intl flights
LaGuardia to Pearson Intl flights
San Francisco to Vancouver Intl flights
Newark to Pierre Elliott Trudeau Intl flights
John F Kennedy Intl to Pearson Intl flights
LaGuardia to Pierre Elliott Trudeau Intl flights
Los Angeles to Pearson Intl flights
John F Kennedy Intl to Vancouver Intl flights
John F Kennedy Intl to Toronto Island flights
Reagan-National to Pearson Intl flights
Newark to Vancouver Intl flights
Dulles Intl to Pearson Intl flights
San Francisco to Pearson Intl flights
John F Kennedy Intl to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Pearson Intl flights
Newark to Calgary flights
Dallas/Fort Worth to Pearson Intl flights
Dulles Intl to Pierre Elliott Trudeau Intl flights
Boston to Pearson Intl flights
John F Kennedy Intl to Calgary flights
LaGuardia to Toronto Island flights
O'Hare Intl to Calgary flights
O'Hare Intl to Pierre Elliott Trudeau Intl flights
Newark to Hamilton flights
Boston to Toronto Island flights
Reagan-National to Pierre Elliott Trudeau Intl flights
O'Hare Intl to Vancouver Intl flights
Hobby to Pearson Intl flights
Seattle to Pearson Intl flights
Los Angeles to Calgary flights
Dulles Intl to Toronto Island flights
Dulles Intl to Calgary flights
San Diego to Vancouver Intl flights
Denver to Vancouver Intl flights
Ontario to Vancouver Intl flights
San Francisco to Calgary flights
Fort Lauderdale to Pearson Intl flights
LaGuardia to Vancouver Intl flights
Hobby to Vancouver Intl flights
Dulles Intl to Vancouver Intl flights
Los Angeles to Pierre Elliott Trudeau Intl flights
Atlanta to Pearson Intl flights
Orlando to Pearson Intl flights
George Bush Intcntl to Vancouver Intl flights
Boston to Vancouver Intl flights
Baltimore to Pearson Intl flights
George Bush Intcntl to Pearson Intl flights
San Francisco to Pierre Elliott Trudeau Intl 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 Idaho to Ontario?

When you search for this flight from Idaho to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights helps you find that perfect flight to Ontario from Idaho 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 Idaho to Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Idaho to Ontario flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from Idaho today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.