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$143+ 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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — YYZ
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Find 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 octubre 30, 2025.

This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/272:47 pmGEG - YYZ
1 stop21h 48mAlaska Airlines
jue. 12/44:45 pmYYZ - GEG
1 stop9h 29mAlaska Airlines
Deal found 10/29$341
This Delta deal was found by Cheapflights users on 10/29. 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.
dom. 12/72:15 pmGEG - YYZ
1 stop6h 12mDelta
dom. 12/1412:23 pmYYZ - GEG
2 stops14h 36mDelta
Deal found 10/29$350
This Delta deal was found by Cheapflights users on 10/29. 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.
jue. 11/276:00 amGEG - YYZ
2 stops13h 00mDelta
jue. 12/412:13 pmYYZ - GEG
2 stops14h 46mDelta
Deal found 10/29$356
This United Airlines deal was found by Cheapflights users on 10/30. 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.
dom. 12/145:25 amGEG - YYZ
2 stops11h 20mUnited Airlines
dom. 12/213:30 pmYYZ - GEG
1 stop10h 00mUnited Airlines
Deal found 10/30$400
This Alaska Airlines deal was found by Cheapflights users on 10/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/56:05 pmBOI - YYZ
1 stop19h 30mAlaska Airlines
mié. 12/34:45 pmYYZ - BOI
1 stop9h 05mAlaska Airlines
Deal found 10/29$488
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/146:28 amBOI - YYZ
1 stop7h 07mAlaska Airlines
mar. 11/184:45 pmYYZ - BOI
1 stop19h 44mAlaska Airlines
Deal found 10/29$530
This Expedia deal was found by Cheapflights users on 10/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/266:09 amBOI - YYZ
1 stop7h 26mMultiple Airlines
dom. 11/306:30 amYYZ - BOI
2 stops14h 24mMultiple Airlines
Deal found 10/30$532
This Delta deal was found by Cheapflights users on 10/29. 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.
mié. 11/511:12 amBOI - YYZ
2 stops10h 46mDelta
mié. 12/36:30 amYYZ - BOI
2 stops12h 46mDelta
Deal found 10/29$538
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/146:28 amBOI - YYZ
1 stop7h 07mMultiple Airlines
mar. 11/1812:40 pmYYZ - BOI
2 stops28h 32mMultiple Airlines
Deal found 10/29$544
This FlightHub deal was found by Cheapflights users on 10/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/261:50 pmBOI - YYZ
2 stops32h 48mWestJet
dom. 11/3010:15 pmYYZ - BOI
2 stops46h 37mWestJet
Deal found 10/30$550
This FlightHub deal was found by Cheapflights users on 10/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/271:10 pmGEG - YYZ
2 stops13h 58mWestJet
jue. 12/410:30 amYYZ - GEG
2 stops11h 26mWestJet
Deal found 10/29$566
This American Airlines deal was found by Cheapflights users on 10/30. 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.
vie. 11/141:40 pmBOI - YYZ
1 stop19h 06mAmerican Airlines
lun. 11/176:10 amYYZ - BOI
1 stop18h 22mAmerican Airlines
Deal found 10/30$583

Cheap flight deals from Idaho to Ontario

Keep the following information in mind while searching for Idaho to Ontario flight deals. Data was last updated octubre 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$341
(Alaska Airlines)

One-way from

$143
(Delta)

Popular in

May

Cheapest in

February

Average price

$620
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
High demand for flights, 8% potential price rise
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 octubre 30, 2025.
Use the filters below to find and compare flights from Idaho to Ontario that are best for you.

Fly from

Idaho

Fly to

Ontario

Route

Depart

Return

Price

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

mié. 1/7

5:00 am-3:02 pm

1 stop7h 02m

Toronto Pearson Intl

lun. 1/12

9:00 pm-11:39 am

1 stop17h 39m

$341

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

jue. 11/27

2:47 pm-3:35 pm

1 stop21h 48m

Toronto Pearson Intl

jue. 12/4

4:45 pm-11:14 pm

1 stop9h 29m

$341

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

dom. 12/7

2:15 pm-11:27 pm

1 stop6h 12m

Toronto Pearson Intl

dom. 12/14

6:10 am-12:02 pm

1 stop8h 52m

$341

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

jue. 11/27

6:00 am-10:00 pm

2 stops13h 00m

Toronto Pearson Intl

jue. 12/4

12:13 pm-11:59 pm

2 stops14h 46m

$356

JacksonOttawa

JAC - YOW

JACYOW

Jackson Hole

jue. 4/2

4:25 pm-1:45 pm

2 stops19h 20m

Ottawa

lun. 4/6

5:25 pm-3:12 pm

2 stops23h 47m

$377

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

sáb. 2/28

6:28 am-3:35 pm

1 stop7h 07m

Toronto Pearson Intl

mié. 3/4

4:45 pm-9:43 am

2 stops18h 58m

$392

SpokaneToronto

GEG - YYZ

GEGYYZ

Spokane

dom. 12/14

5:25 am-7:45 pm

2 stops11h 20m

Toronto Pearson Intl

dom. 12/21

3:30 pm-10:30 pm

1 stop10h 00m

$400

BoiseMontreal

BOI - YUL

BOIYUL

Boise Air Term. Gowen Fld

vie. 1/30

3:14 pm-3:08 pm

1 stop21h 54m

Montreal Pierre Elliott Trudeau Intl

lun. 2/23

3:55 pm-1:09 pm

1 stop23h 14m

$431

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

lun. 3/9

6:28 am-3:35 pm

1 stop7h 07m

Toronto Pearson Intl

vie. 3/13

4:45 pm-10:20 pm

1 stop7h 35m

$450

BoiseToronto

BOI - YYZ

BOIYYZ

Boise Air Term. Gowen Fld

mié. 11/26

6:09 am-3:35 pm

1 stop7h 26m

Toronto Pearson Intl

dom. 11/30

6:30 am-6:54 pm

2 stops14h 24m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 33 results
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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

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

Currently, February is the cheapest month in which you can book a flight from Idaho to Region of Ontario (average of $154). Flying from Idaho to Region of Ontario in August is currently the most expensive (average of $453). 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.

What is the cheapest time of day to fly from ID to ON?

Find hourly flight availability from Idaho to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

When flying from Idaho to Region of Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 57% versus a flight in the morning.

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

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 octubre 30, 2025.
Read through reviews of airlines operating flights from Idaho to Ontario, such as Alaska Airlines, Delta, and United Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,214 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,993 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 12m. United Airlines provides one of the quickest options available for as low as $341. The distance between Idaho and Region of Ontario is about 1831 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 Delta, which is currently one of the cheapest options available, starting at $143. United Airlines flights start at $143 while deals on Alaska Airlines start at $194 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.

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

    Currently, February is the cheapest month in which you can book a flight from Idaho to Region of Ontario (average of $154). Flying from Idaho to Region of Ontario in August is currently the most expensive (average of $453). 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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See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Idaho to Ontario

Discover the top 3 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 octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$384FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$255Average$278FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$442Average$511FlexibilityNo cancel feeOn-time69%

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