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Cheap flights from Boise to Ontario from C$ 273

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 21/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
4 May — 11 May1
1 adult

Cheap flight deals from Boise to Ontario

Keep the following information in mind while searching for Boise to Ontario flight deals. Data was last updated 29 April 2025.

Round-trip from

C$ 473

One-way from

C$ 273

Popular in

March

Cheapest in

February

Average price

C$ 529
Delta
  • Delta
  • 12/6-19/6
  • 2 total stops
  • 17h 08m total
  • Boise to Ontario
Search Deals
Delta
  • Delta
  • 21/6
  • 1 total stop
  • 10h 54m total
  • Boise to Ontario
Search Deals
High demand for flights, 15% potential price rise
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Cheapest flight prices on average. 3% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
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Find flight deals from Boise to Ontario

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 29 April 2025.

Thu 12/611:40 p.m.BOI - YYZ
1 stop8h 44mDelta
Thu 19/65:50 p.m.YYZ - BOI
1 stop8h 24mDelta
Deal found 27/4C$ 473
Mon 26/56:30 a.m.BOI - YYZ
2 stops13h 30mUnited Airlines
Mon 2/68:45 a.m.YYZ - BOI
1 stop16h 12mUnited Airlines
Deal found 28/4C$ 520
Wed 7/56:30 a.m.BOI - YYZ
1 stop30h 30mAlaska Airlines
Tue 13/54:45 p.m.YYZ - BOI
1 stop7h 54mAlaska Airlines
Deal found 28/4C$ 554
Mon 21/79:49 p.m.BOI - YYZ
2 stops21h 05mMultiple Airlines
Fri 25/710:05 a.m.YYZ - BOI
1 stop13h 36mMultiple Airlines
Deal found 28/4C$ 560
Mon 26/51:38 p.m.BOI - YYZ
1 stop20h 52mAmerican Airlines
Mon 2/61:29 p.m.YYZ - BOI
1 stop10h 31mAmerican Airlines
Deal found 28/4C$ 561
Thu 12/65:15 a.m.BOI - YYZ
2 stops10h 24mWestJet
Thu 19/66:30 a.m.YYZ - BOI
2 stops14h 36mWestJet
Deal found 27/4C$ 696
Thu 15/511:59 p.m.BOI - YUL
1 stop9h 40mDelta
Tue 20/56:15 a.m.YUL - BOI
1 stop9h 31mDelta
Deal found 28/4C$ 807
Thu 26/64:40 p.m.BOI - YUL
1 stop12h 19mUnited Airlines
Thu 3/74:05 p.m.YUL - BOI
1 stop7h 29mUnited Airlines
Deal found 28/4C$ 838
Wed 20/81:36 p.m.BOI - YUL
1 stop23h 18mAmerican Airlines
Sat 23/87:50 a.m.YUL - BOI
2 stops14h 19mAmerican Airlines
Deal found 28/4C$ 906

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 29 April 2025.
Use the filters below to find and compare flights from Boise to Ontario that are best for you.

Fly from

Boise

Fly to

Ontario

Route

Depart

Return

Price

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Thu 12/6

11:40 p.m.-10:24 a.m.

1 stop8h 44m

Toronto Pearson Intl

Thu 19/6

5:50 p.m.-12:14 a.m.

1 stop8h 24m

C$ 473

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Mon 26/5

6:30 a.m.-10:00 p.m.

2 stops13h 30m

Toronto Pearson Intl

Mon 2/6

8:45 a.m.-10:57 p.m.

1 stop16h 12m

C$ 520

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Mon 21/7

9:49 p.m.-8:54 p.m.

2 stops21h 05m

Toronto Pearson Intl

Fri 25/7

10:05 a.m.-9:41 p.m.

1 stop13h 36m

C$ 560

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Mon 26/5

1:38 p.m.-12:30 p.m.

1 stop20h 52m

Toronto Pearson Intl

Mon 2/6

1:29 p.m.-10:00 p.m.

1 stop10h 31m

C$ 561

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Thu 12/6

5:15 a.m.-5:39 p.m.

2 stops10h 24m

Toronto Pearson Intl

Thu 19/6

6:30 a.m.-7:06 p.m.

2 stops14h 36m

C$ 696

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Thu 15/5

11:59 p.m.-11:39 a.m.

1 stop9h 40m

Montreal Pierre Elliott Trudeau Intl

Tue 20/5

6:15 a.m.-1:46 p.m.

1 stop9h 31m

C$ 807

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Thu 26/6

4:40 p.m.-6:59 a.m.

1 stop12h 19m

Montreal Pierre Elliott Trudeau Intl

Thu 3/7

4:05 p.m.-9:34 p.m.

1 stop7h 29m

C$ 838

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Fri 13/6

5:15 a.m.-12:43 a.m.

2 stops17h 28m

Montreal Pierre Elliott Trudeau Intl

Thu 19/6

7:00 a.m.-7:06 p.m.

2 stops14h 06m

C$ 866

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Wed 20/8

1:36 p.m.-2:54 p.m.

1 stop23h 18m

Montreal Pierre Elliott Trudeau Intl

Sat 23/8

7:50 a.m.-8:09 p.m.

2 stops14h 19m

C$ 906

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Sat 21/6

10:24 a.m.-11:18 p.m.

1 stop10h 54m

C$ 273

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 15 results
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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, January is the cheapest month in which you can book a flight from Boise to Region of Ontario (average of C$ 167). Flying from Boise to Region of Ontario in July is currently the most expensive (average of C$ 258). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 29 April 2025.
To help decide which airline to fly from Boise to Ontario, see what other customers have to say about Delta, United Airlines and American Airlines. 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
7,929 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,823 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,228 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

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

    One-way options have recently been found by users for as low as C$ 273 on Delta. Other airlines that offer cheap prices include American Airlines from C$ 280 and Air Canada from C$ 303 one-way.

  • 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 - Montreal Pierre Elliott Trudeau Intl or Boise Air Term. Gowen Fld - Hamilton 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, January is the cheapest month in which you can book a flight from Boise to Region of Ontario (average of C$ 167). Flying from Boise to Region of Ontario in July is currently the most expensive (average of C$ 258). 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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