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Idaho

$178+ Cheap flights from Ontario to Idaho

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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Ontario to Idaho

Cheapest flights from Ontario to Idaho
Explore the most affordable flight options available from Ontario to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Kissandfly.com deal was found by Cheapflights users on 1/27. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:30 am
YYZ
-
BOI
1 stop16h 45m
Lufthansa
Fri 5/16:30 am
BOI
-
YYZ
1 stop13h 02m
Lufthansa
Deal found 1/27$294
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:45 pm
YYZ
-
BOI
1 stop7h 55m
Alaska Airlines
Mon 3/93:47 pm
BOI
-
YYZ
1 stop21h 48m
Alaska Airlines
Deal found 1/27$297
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:55 pm
YYZ
-
GEG
1 stop9h 16m
Alaska Airlines
Wed 5/138:38 pm
GEG
-
YYZ
1 stop16h 07m
Alaska Airlines
Deal found 1/27$297
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/204:45 pm
YYZ
-
GEG
1 stop10h 14m
Alaska Airlines
Tue 2/247:06 pm
GEG
-
YYZ
1 stop17h 29m
Alaska Airlines
Deal found 1/28$298
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:30 am
YYZ
-
BOI
1 stop16h 45m
United Airlines
Fri 5/16:30 am
BOI
-
YYZ
2 stops14h 06m
United Airlines
Deal found 1/27$301
This Delta deal was found by Cheapflights users on 1/27. 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.
Tue 5/52:15 pm
YYZ
-
GEG
2 stops12h 19m
Delta
Mon 5/116:05 am
GEG
-
YYZ
1 stop9h 20m
Delta
Deal found 1/27$301
This Delta deal was found by Cheapflights users on 1/27. 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.
Mon 3/27:50 am
YYZ
-
BOI
2 stops15h 05m
Delta
Mon 3/911:30 pm
BOI
-
YYZ
2 stops13h 38m
Delta
Deal found 1/27$302
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/112:15 pm
YYZ
-
GEG
2 stops11h 33m
Delta
Wed 5/135:45 am
GEG
-
YYZ
1 stop8h 00m
Delta
Deal found 1/28$302
This Delta deal was found by Cheapflights users on 1/27. 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.
Thu 3/126:20 am
YYZ
-
BOI
2 stops16h 49m
Delta
Mon 3/1611:30 pm
BOI
-
YYZ
2 stops13h 38m
Delta
Deal found 1/27$314
This Delta deal was found by Cheapflights users on 1/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:05 am
YYZ
-
GEG
2 stops15h 45m
Delta
Tue 2/242:05 pm
GEG
-
YYZ
1 stop6h 06m
Delta
Deal found 1/28$324
This Travelocity deal was found by Cheapflights users on 1/27. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/134:45 pm
YYZ
-
GEG
1 stop10h 14m
Alaska Airlines
Mon 2/167:06 pm
GEG
-
YYZ
1 stop17h 29m
Alaska Airlines
Deal found 1/27$326
This Delta deal was found by Cheapflights users on 1/27. 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.
Sun 5/31:30 pm
YYZ
-
GEG
1 stop11h 01m
Delta
Sat 5/165:45 am
GEG
-
YYZ
1 stop8h 00m
Delta
Deal found 1/27$329

Find flight deals from Ontario to Idaho

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

Round-trip from

$294
(Kissandfly.com)

One-way from

$178
(Delta)

Popular in

June

Cheapest in

March
From Ontario to Idaho
Search Deals
One-way flight from Ontario to Idaho
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($38 potential savings vs. average RT price).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Idaho 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 January 29, 2026.
Use the filters below to find and compare flights from Ontario to Idaho that are best for you.

Fly from

Ontario

Fly to

Idaho

Route

Depart

Return

Price

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Mon 3/2

4:45 pm-10:40 pm

1 stop7h 55m

Boise Air Term. Gowen Fld

Mon 3/9

3:47 pm-3:35 pm

1 stop21h 48m

$297

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Fri 2/20

4:45 pm-11:59 pm

1 stop10h 14m

Spokane

Tue 2/24

7:06 pm-3:35 pm

1 stop17h 29m

$298

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Tue 5/5

2:15 pm-9:02 pm

2 stops9h 47m

Spokane

Fri 5/15

6:05 am-6:25 pm

1 stop9h 20m

$301

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Wed 5/6

4:18 pm-9:16 pm

1 stop7h 58m

Spokane

Sat 5/16

4:03 pm-10:03 am

2 stops15h 00m

$301

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Sun 5/3

2:15 pm-12:20 am

2 stops13h 05m

Spokane

Thu 5/14

6:05 am-6:25 pm

1 stop9h 20m

$301

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Tue 5/5

4:18 pm-9:16 pm

1 stop7h 58m

Spokane

Sat 5/16

5:00 am-9:32 pm

1 stop13h 32m

$301

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Sun 5/3

12:22 pm-11:05 pm

2 stops13h 43m

Spokane

Fri 5/15

6:05 am-6:25 pm

1 stop9h 20m

$301

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Fri 5/8

11:30 am-9:32 pm

1 stop13h 02m

Spokane

Thu 5/14

6:05 am-6:25 pm

1 stop9h 20m

$301

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Sun 5/3

11:30 am-9:31 pm

1 stop13h 01m

Spokane

Tue 5/12

6:20 am-10:58 pm

2 stops13h 38m

$301

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Thu 5/7

2:15 pm-10:48 pm

2 stops11h 33m

Spokane

Mon 5/11

6:05 am-6:25 pm

1 stop9h 20m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 49 results
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Best time to book a flight from Ontario to Idaho

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

How much does it cost to fly round-trip from Region of Ontario to Idaho?

Related info for your journey

Find useful and relevant information for your journey from Ontario to Idaho. 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 Region of Ontario to Idaho?

    A quick flight from Region of Ontario to Idaho can take about 7h 55m. Alaska Airlines provides one of the quickest options available for as low as $297. Region of Ontario and Idaho are separated by a distance of 1814 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Idaho 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

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 Ontario to Idaho

See prices for flight routes from nearby airports that may be better suited for you.
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