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$161+ Cheap flights from Boise (BOI) to Ontario

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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
Aug 2 — Aug 91
Sun 8/2
Sun 8/9
1 adult, Economy
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Cheap 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 July 3, 2026.

This United Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:05 pm
BOI
-
YYZ
1 stop9h 55m
United Airlines
Wed 8/2610:15 am
YYZ
-
BOI
2 stops13h 22m
United Airlines
Deal found 6/30$365
This American Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/82:58 pm
BOI
-
YYZ
1 stop6h 31m
American Airlines
Fri 8/147:20 am
YYZ
-
BOI
1 stop9h 09m
American Airlines
Deal found 6/28$379
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:05 pm
BOI
-
YYZ
1 stop9h 55m
United Airlines
Tue 9/294:18 pm
YYZ
-
BOI
1 stop7h 17m
United Airlines
Deal found 7/1$407
This American Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:01 am
BOI
-
YYZ
2 stops12h 34m
American Airlines
Fri 8/76:46 am
YYZ
-
BOI
1 stop17h 25m
American Airlines
Deal found 6/28$430
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:05 pm
BOI
-
YUL
1 stop11h 11m
United Airlines
Tue 9/111:23 am
YUL
-
BOI
2 stops12h 14m
United Airlines
Deal found 7/1$468
This American Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/93:19 pm
BOI
-
YUL
1 stop18h 24m
American Airlines
Sat 8/155:35 pm
YUL
-
BOI
1 stop22h 54m
American Airlines
Deal found 6/30$487
This American Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:19 pm
BOI
-
YUL
2 stops16h 24m
American Airlines
Mon 8/315:34 pm
YUL
-
BOI
1 stop22h 55m
American Airlines
Deal found 6/29$497
This American Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/303:54 pm
BOI
-
YUL
1 stop20h 47m
American Airlines
Thu 8/65:34 pm
YUL
-
BOI
1 stop22h 55m
American Airlines
Deal found 6/28$536
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:10 pm
BOI
-
YUL
1 stop10h 29m
Delta
Mon 10/1212:44 pm
YUL
-
BOI
1 stop11h 38m
Delta
Deal found 7/1$584
This oojo deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:59 pm
BOI
-
YUL
2 stops11h 06m
WestJet
Sat 8/158:00 pm
YUL
-
BOI
2 stops21h 18m
WestJet
Deal found 6/30$587
This Expedia deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:23 am
BOI
-
YHM
2 stops14h 11m
Multiple Airlines
Thu 8/207:25 am
YHM
-
BOI
2 stops12h 42m
Multiple Airlines
Deal found 6/29$1,066
This Expedia deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:13 pm
BOI
-
YHM
2 stops10h 57m
Multiple Airlines
Wed 7/87:25 am
YHM
-
BOI
2 stops17h 30m
Multiple Airlines
Deal found 6/28$1,340

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 July 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$365
(United Airlines)

One-way from

$161
(Delta)
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Toronto (YTO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Toronto (YTO) flights.
Search Deals
From Boise Air Term. Gowen Fld to Ontario
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Ontario
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 2,558,603 searches. Data last updated July 3, 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

Tue 8/25

7:05 pm-7:00 am

1 stop9h 55m

Toronto Pearson Intl

Wed 8/26

10:15 am-9:37 pm

2 stops13h 22m

$365

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sat 8/8

2:58 pm-11:29 pm

1 stop6h 31m

Toronto Pearson Intl

Fri 8/14

7:20 am-2:29 pm

1 stop9h 09m

$379

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Thu 8/13

11:10 pm-10:25 am

1 stop9h 15m

Toronto Pearson Intl

Thu 8/20

5:50 pm-11:59 pm

1 stop8h 09m

$379
Quickest round-trip

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Fri 8/14

6:15 am-4:14 pm

1 stop7h 59m

Toronto Pearson Intl

Tue 8/18

7:00 am-11:28 am

1 stop6h 28m

$379

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Thu 10/1

11:10 pm-10:23 am

1 stop9h 13m

Toronto Pearson Intl

Thu 10/8

1:34 pm-10:22 pm

1 stop10h 48m

$407

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Tue 9/15

7:05 pm-7:00 am

1 stop9h 55m

Toronto Pearson Intl

Tue 9/29

4:18 pm-9:35 pm

1 stop7h 17m

$407

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Thu 8/20

5:19 pm-11:43 am

2 stops16h 24m

Montreal Pierre Elliott Trudeau Intl

Mon 8/31

5:34 pm-2:29 pm

1 stop22h 55m

$497

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Thu 7/30

3:54 pm-2:41 pm

1 stop20h 47m

Montreal Pierre Elliott Trudeau Intl

Thu 8/6

5:34 pm-2:29 pm

1 stop22h 55m

$536

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Mon 8/31

5:44 pm-2:40 pm

2 stops18h 56m

Montreal Pierre Elliott Trudeau Intl

Tue 9/1

5:05 pm-9:35 am

2 stops18h 30m

$588

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

Mon 10/5

11:10 pm-11:58 am

2 stops10h 48m

Montreal Pierre Elliott Trudeau Intl

Mon 10/12

12:44 pm-10:22 pm

1 stop11h 38m

$594

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 32 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
No data available for this route at this time. Please check back soon.

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 July 3, 2026.
Read reviews from past customers who have flown Delta and United Airlines from Boise to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,453 reviews

Comfort

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,453 reviews
Delta
7.8
Good
8,453 reviews

Comfort

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
9,927 reviews
Delta
7.8
Good
8,453 reviews

Comfort

7.8

Food

7.2

Boarding

8.1

Crew

8.5

Entertainment

7.8

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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?

    Boise Air Term. Gowen Fld (BOI), located 3.3 mi from the city center, is the airport you fly out of when you book flights from Boise to Ontario.

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

    A quick flight from Boise to Region of Ontario can take about 6h 31m. United Airlines provides one of the quickest options available for as low as $379. The distance from Boise to Region of Ontario is about 1814 mi. This flight may include one or multiple stops.

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

    The cheapest airlines for a one-way flight from Boise to Region of Ontario are Alaska Airlines ($118), Delta ($148), and United Airlines ($169).

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

    Most travelers 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.

See more FAQs

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Top 2 airlines flying from Boise to Ontario

Discover the top 2 airlines that operate flights from Boise to Ontario. 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 2,558,603 searches. Data last updated July 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$236Average$448FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$244Average$614FlexibilityNo cancel feeOn-time69%

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