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Cheap flights from Boise to Ontario from C$ 218

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
13 Jun — 20 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boise to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Boise to Ontario
Explore the most affordable flight options available from Boise to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 May 2026.

Tue 22/91:43 p.m.
BOI
-
YYZ
1 stop8h 21m
Delta
Sat 26/95:50 p.m.
YYZ
-
BOI
1 stop8h 06m
Delta
Deal found 11/5C$ 516
Sat 8/87:05 p.m.
BOI
-
YYZ
1 stop9h 55m
United Airlines
Fri 14/89:00 p.m.
YYZ
-
BOI
2 stops14h 34m
United Airlines
Deal found 12/5C$ 529
Thu 2/75:59 p.m.
BOI
-
YYZ
2 stops12h 56m
Delta
Wed 8/77:24 p.m.
YYZ
-
BOI
1 stop6h 22m
Delta
Deal found 11/5C$ 530
Wed 1/73:12 p.m.
BOI
-
YYZ
1 stop19h 25m
American Airlines
Fri 10/77:17 a.m.
YYZ
-
BOI
1 stop9h 03m
American Airlines
Deal found 11/5C$ 545
Sat 8/82:53 p.m.
BOI
-
YYZ
1 stop6h 21m
Delta
Fri 14/811:40 a.m.
YYZ
-
BOI
1 stop12h 39m
Delta
Deal found 13/5C$ 575
Mon 25/56:00 a.m.
BOI
-
YYZ
2 stops10h 31m
Delta
Thu 28/51:34 p.m.
YYZ
-
BOI
1 stop10h 54m
Delta
Deal found 11/5C$ 589
Mon 21/95:40 a.m.
BOI
-
YYZ
1 stop10h 45m
Delta
Wed 30/96:30 a.m.
YYZ
-
BOI
1 stop9h 33m
Delta
Deal found 11/5C$ 592
Mon 7/911:30 p.m.
BOI
-
YYZ
2 stops11h 55m
Delta
Sat 12/95:50 p.m.
YYZ
-
BOI
1 stop7h 06m
Delta
Deal found 11/5C$ 604
Fri 3/711:45 p.m.
BOI
-
YYZ
1 stop8h 38m
Delta
Mon 13/75:45 p.m.
YYZ
-
BOI
1 stop6h 19m
Delta
Deal found 11/5C$ 621
Tue 9/62:50 p.m.
BOI
-
YUL
1 stop6h 52m
Delta
Tue 16/67:00 a.m.
YUL
-
BOI
1 stop7h 54m
Delta
Deal found 12/5C$ 900
Tue 9/64:06 p.m.
BOI
-
YUL
1 stop20h 38m
American Airlines
Tue 16/67:29 a.m.
YUL
-
BOI
2 stops11h 58m
American Airlines
Deal found 12/5C$ 914
Thu 25/63:12 p.m.
BOI
-
YUL
1 stop18h 30m
American Airlines
Thu 2/73:48 p.m.
YUL
-
BOI
1 stop21h 32m
American Airlines
Deal found 11/5C$ 938

Find flight deals from Boise to Ontario

Keep the following information in mind while searching for Boise to Ontario flight deals. Data was last updated 14 May 2026.

Round-trip from

C$ 516

One-way from

C$ 218

Popular in

March

Cheapest in

January

Average price

C$ 997
Delta
  • Delta
  • 22/9-26/9
  • 2 total stops
  • 16h 27m total
  • Boise to Ontario
Search Deals
Delta
  • Delta
  • 8/6
  • 1 total stop
  • 8h 38m total
  • Boise to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (C$ 49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 70 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise 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 14 May 2026.
Use the filters below to find and compare flights from Boise 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

Mon 9/11

6:55 p.m.-6:45 a.m.

1 stop9h 50m

Toronto Pearson Intl

Wed 11/11

5:16 p.m.-11:59 p.m.

1 stop8h 43m

C$ 516

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Thu 6/8

2:02 p.m.-11:57 p.m.

1 stop7h 55m

Toronto Pearson Intl

Fri 14/8

11:40 a.m.-10:19 p.m.

1 stop12h 39m

C$ 516

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Thu 2/7

5:59 p.m.-8:55 a.m.

2 stops12h 56m

Toronto Pearson Intl

Wed 8/7

7:24 p.m.-11:46 p.m.

1 stop6h 22m

C$ 530

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sat 8/8

2:53 p.m.-11:14 p.m.

1 stop6h 21m

Toronto Pearson Intl

Fri 14/8

11:40 a.m.-10:19 p.m.

1 stop12h 39m

C$ 575
Quickest round-trip

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Wed 1/7

12:38 p.m.-8:44 p.m.

1 stop6h 06m

Toronto Pearson Intl

Thu 16/7

7:00 a.m.-11:32 a.m.

1 stop6h 32m

C$ 589

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Fri 26/6

11:45 p.m.-12:25 p.m.

1 stop10h 40m

Toronto Pearson Intl

Sun 5/7

12:09 p.m.-11:47 p.m.

2 stops13h 38m

C$ 589

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Tue 9/6

10:41 a.m.-9:32 p.m.

1 stop8h 51m

Toronto Pearson Intl

Wed 10/6

6:30 a.m.-11:55 p.m.

1 stop19h 25m

C$ 708

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Wed 12/8

10:31 a.m.-9:32 p.m.

1 stop9h 01m

Toronto Pearson Intl

Fri 14/8

4:18 p.m.-9:37 p.m.

1 stop7h 19m

C$ 716

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Tue 9/6

2:50 p.m.-11:42 p.m.

1 stop6h 52m

Montreal Pierre Elliott Trudeau Intl

Tue 16/6

7:00 a.m.-12:54 p.m.

1 stop7h 54m

C$ 900

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Mon 1/6

3:11 p.m.-11:44 a.m.

1 stop18h 33m

Montreal Pierre Elliott Trudeau Intl

Fri 12/6

3:48 p.m.-11:18 a.m.

1 stop21h 30m

C$ 977

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/5

Showing 1-10 of 41 resultsSorted by cheapest first
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Best time to book a flight from Boise to Ontario

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

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

Currently, May is the cheapest month in which you can book a flight from Boise to Region of Ontario (average of C$ 216). Flying from Boise to Region of Ontario in February is currently the most expensive (average of C$ 615). 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 Boise to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boise to Ontario?

    If you book a flight to Ontario from Boise, you will be flying from Air Term. Gowen Fld, which is the city’s only airport. Boise Air Term. Gowen Fld (BOI) is located 5.4 km from the centre of Boise.

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

    Departing from Boise to Region of Ontario will take you 7h 55m. Boise and Region of Ontario are separated by a distance of 2919 km. This flight may include one or multiple stops.

  • What are the most popular routes from Boise to Region of Ontario?

    Most travellers choose Boise Air Term. Gowen Fld - Toronto Pearson Intl, Boise Air Term. Gowen Fld - Hamilton or Boise Air Term. Gowen Fld - Montreal Pierre Elliott Trudeau Intl when deciding on the best route from Boise to Region of Ontario.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Boise to Region of Ontario (average of C$ 216). Flying from Boise to Region of Ontario in February is currently the most expensive (average of C$ 615). 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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