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Ontario

$160+ Cheap flights from Idaho 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
Aug 1 — Aug 81
Sat 8/1
Sat 8/8
1 adult, Economy
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Cheap flight deals from Idaho to Ontario

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 July 2, 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 Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/165:30 am
GEG
-
YYZ
1 stop8h 10m
Delta
Tue 8/257:24 pm
YYZ
-
GEG
1 stop6h 45m
Delta
Deal found 6/29$378
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:56 pm
GEG
-
YYZ
1 stop8h 29m
Delta
Fri 8/215:50 pm
YYZ
-
GEG
1 stop9h 03m
Delta
Deal found 6/29$379
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 Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:56 pm
GEG
-
YYZ
2 stops13h 24m
Delta
Sun 8/3011:40 am
YYZ
-
GEG
1 stop12h 50m
Delta
Deal found 6/30$389
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.
Sat 10/315:00 am
GEG
-
YYZ
1 stop7h 02m
United Airlines
Wed 11/44:10 pm
YYZ
-
GEG
1 stop7h 55m
United Airlines
Deal found 6/30$407
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 6/30. 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.
Thu 8/272:27 pm
GEG
-
YYZ
1 stop19h 06m
American Airlines
Sun 8/306:46 am
YYZ
-
GEG
1 stop8h 08m
American Airlines
Deal found 6/30$420
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:05 am
GEG
-
YYZ
2 stops12h 58m
Delta
Sun 8/3011:40 am
YYZ
-
GEG
1 stop12h 50m
Delta
Deal found 6/30$430
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 Delta deal was found by Cheapflights users on 6/27. 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.
Wed 9/3012:38 pm
GEG
-
YYZ
1 stop8h 21m
Delta
Sat 10/176:15 am
YYZ
-
GEG
1 stop8h 31m
Delta
Deal found 6/27$434
This American Airlines deal was found by Cheapflights users on 6/27. 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 8/228:01 am
BOI
-
YYZ
2 stops12h 34m
American Airlines
Tue 8/251:15 pm
YYZ
-
BOI
2 stops11h 25m
American Airlines
Deal found 6/27$435

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 July 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$365
(United Airlines)

One-way from

$160
(United Airlines)
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 Idaho to Ontario
Search Deals
One-way flight from Idaho to Ontario
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 2,558,603 searches. Data last updated July 2, 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 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

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 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

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sat 8/22

2:58 pm-10:59 am

1 stop18h 01m

Toronto Pearson Intl

Tue 8/25

7:20 am-2:29 pm

1 stop9h 09m

$379

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Sun 8/16

5:30 am-4:40 pm

1 stop8h 10m

Toronto Pearson Intl

Tue 8/25

12:09 pm-11:26 pm

2 stops14h 17m

$389

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sat 8/22

7:05 pm-7:00 am

1 stop9h 55m

Toronto Pearson Intl

Tue 8/25

10:15 am-9:37 pm

2 stops13h 22m

$389

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Thu 8/20

2:05 pm-11:10 pm

1 stop6h 05m

Toronto Pearson Intl

Wed 8/26

5:50 pm-11:59 pm

2 stops9h 09m

$389

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Thu 8/27

10:56 pm-3:20 pm

2 stops13h 24m

Toronto Pearson Intl

Sun 8/30

11:40 am-9:30 pm

1 stop12h 50m

$389

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

Sat 10/31

5:00 am-3:02 pm

1 stop7h 02m

Toronto Pearson Intl

Wed 11/4

4:10 pm-9:05 pm

1 stop7h 55m

$407

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

Sun 9/20

10:31 am-9:32 pm

1 stop9h 01m

Toronto Pearson Intl

Fri 9/25

5:16 pm-11:59 pm

1 stop8h 43m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 60 resultsSorted by cheapest first
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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
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 2, 2026.
Read through reviews of airlines operating flights from Idaho to Ontario, such as Delta and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,452 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Overall

7.8

Food

7.2

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
8,452 reviews
Delta
7.8
Good
8,452 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Overall

7.8

Food

7.2

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
9,926 reviews
Delta
7.8
Good
8,452 reviews

Crew

8.5

Comfort

7.8

Entertainment

7.8

Boarding

8.1

Overall

7.8

Food

7.2

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 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 31m. American Airlines provides one of the quickest options available for as low as $379. The distance between Idaho and Region of Ontario is about 1814 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $118. Delta flights start at $148 while deals on United Airlines start at $169 one-way.

  • 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.

See more FAQs

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Alternative routes for Idaho to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Idaho to Ontario

Discover the top 2 airlines that operate flights from Idaho 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 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$236Average$448FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$244Average$614FlexibilityNo cancel feeOn-time69%

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