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Cheap flights from Ontario to Idaho from C$ 217
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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
4 Aug — 11 Aug1
Round-trip
1 adult
Economy
Cheap flight deals from Ontario to Idaho
Keep the following information in mind while searching for Ontario to Idaho flight deals. Data was last updated 30 July 2025.
Find flight deals from Ontario to Idaho
Cheapest flights from Ontario to IdahoExplore 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 30 July 2025.
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 30 July 2025.
Sat 6/912:15 p.m.YYZ - GEG
2 stops13h 53mDelta
Wed 10/96:38 p.m.GEG - YYZ
2 stops12h 43mDelta
Deal found 30/7C$ 407
Tue 23/99:00 a.m.YYZ - BOI
2 stops14h 14mUnited Airlines
Wed 1/102:44 p.m.BOI - YYZ
1 stop14h 16mUnited Airlines
Deal found 29/7C$ 408
Tue 23/911:36 a.m.YYZ - BOI
2 stops14h 39mDelta
Thu 2/1011:35 p.m.BOI - YYZ
1 stop10h 32mDelta
Deal found 29/7C$ 412
Tue 30/97:00 a.m.YYZ - GEG
1 stop7h 42mUnited Airlines
Tue 30/94:00 p.m.GEG - YYZ
2 stops14h 19mUnited Airlines
Deal found 29/7C$ 412
Sat 30/812:48 p.m.YYZ - IDA
2 stops11h 39mDelta
Sat 6/96:00 a.m.IDA - YYZ
1 stop8h 38mDelta
Deal found 30/7C$ 436
Wed 24/94:45 p.m.YYZ - BOI
1 stop9h 23mAlaska Airlines
Wed 1/1010:00 a.m.BOI - YYZ
1 stop27h 00mAlaska Airlines
Deal found 29/7C$ 476
Sat 6/910:40 a.m.YYZ - GEG
1 stop14h 45mMultiple Airlines
Wed 10/91:25 p.m.GEG - YYZ
1 stop14h 34mMultiple Airlines
Deal found 30/7C$ 477
Wed 6/85:19 p.m.YYZ - GEG
1 stop21h 20mAmerican Airlines
Wed 20/812:29 p.m.GEG - YYZ
1 stop21h 01mAmerican Airlines
Deal found 30/7C$ 521
Mon 25/87:00 a.m.YYZ - BOI
1 stop12h 11mMultiple Airlines
Wed 27/811:22 a.m.BOI - YYZ
2 stops11h 02mMultiple Airlines
Deal found 29/7C$ 531
Thu 25/91:30 p.m.YYZ - BOI
2 stops10h 52mWestJet
Thu 2/1011:00 a.m.BOI - YYZ
2 stops11h 22mWestJet
Deal found 29/7C$ 548
Tue 30/96:49 a.m.YYZ - GEG
2 stops13h 02mAlaska Airlines
Tue 30/97:29 p.m.GEG - YYZ
2 stops24h 21mAlaska Airlines
Deal found 29/7C$ 588
Tue 14/104:45 p.m.YYZ - IDA
1 stop7h 53mAlaska Airlines
Fri 17/106:00 a.m.IDA - YYZ
1 stop31h 00mAlaska Airlines
Deal found 28/7C$ 632
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 629,999 searches. Data last updated 30 July 2025.
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
TorontoSpokane
YYZ - GEG
YYZGEG
Toronto Pearson Intl
Sat 6/9
12:15 p.m.-11:08 p.m.
2 stops13h 53m
Spokane
Wed 10/9
6:38 p.m.-10:21 a.m.
2 stops12h 43m
C$ 407
TorontoBoise
YYZ - BOI
YYZBOI
Toronto Pearson Intl
Tue 23/9
9:44 a.m.-9:14 p.m.
1 stop13h 30m
Boise Air Term. Gowen Fld
Wed 1/10
2:44 p.m.-7:00 a.m.
1 stop14h 16m
C$ 408
TorontoBoise
YYZ - BOI
YYZBOI
Toronto Pearson Intl
Tue 23/9
11:36 a.m.-12:15 a.m.
2 stops14h 39m
Boise Air Term. Gowen Fld
Fri 3/10
11:35 p.m.-11:20 a.m.
2 stops9h 45m
C$ 412
TorontoSpokane
YYZ - GEG
YYZGEG
Toronto Pearson Intl
Tue 30/9
7:00 a.m.-11:42 a.m.
1 stop7h 42m
Spokane
Tue 30/9
4:00 p.m.-9:19 a.m.
2 stops14h 19m
C$ 412
TorontoIdaho Falls
YYZ - IDA
YYZIDA
Toronto Pearson Intl
Sat 30/8
12:48 p.m.-10:27 p.m.
2 stops11h 39m
Idaho Falls Fanning Field
Sat 6/9
6:00 a.m.-4:38 p.m.
1 stop8h 38m
C$ 436
TorontoBoise
YYZ - BOI
YYZBOI
Toronto Pearson Intl
Wed 24/9
4:45 p.m.-12:08 a.m.
1 stop9h 23m
Boise Air Term. Gowen Fld
Wed 1/10
10:00 a.m.-3:00 p.m.
1 stop27h 00m
C$ 476
TorontoSpokane
YYZ - GEG
YYZGEG
Toronto Pearson Intl
Sat 6/9
10:40 a.m.-10:25 p.m.
1 stop14h 45m
Spokane
Wed 10/9
1:25 p.m.-6:59 a.m.
1 stop14h 34m
C$ 477
TorontoSpokane
YYZ - GEG
YYZGEG
Toronto Pearson Intl
Sat 9/8
6:30 a.m.-10:55 p.m.
2 stops19h 25m
Spokane
Wed 20/8
12:29 p.m.-12:30 p.m.
1 stop21h 01m
C$ 521
TorontoBoise
YYZ - BOI
YYZBOI
Toronto Pearson Intl
Mon 25/8
7:00 a.m.-5:11 p.m.
1 stop12h 11m
Boise Air Term. Gowen Fld
Wed 27/8
11:22 a.m.-12:24 a.m.
2 stops11h 02m
C$ 531
TorontoBoise
YYZ - BOI
YYZBOI
Toronto Pearson Intl
Thu 25/9
1:30 p.m.-10:22 p.m.
2 stops10h 52m
Boise Air Term. Gowen Fld
Thu 2/10
11:00 a.m.-12:22 a.m.
2 stops11h 22m
C$ 548
Showing 1-10 of 56 results
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
What is the cheapest time of day to fly from ON to ID?
Find hourly flight availability from Ontario to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 July 2025.
When flying from Region of Ontario to Idaho, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. 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 Idaho. Reviews last updated 30 July 2025.
Get a feel of what it's like to fly with Alaska Airlines,Delta, andUnited Airlines from Ontario to Idaho by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jul 2025
YEG - SEA
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jul 2025
YEG - SEA
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jul 2025
YEG - SEA
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jul 2025
YEG - SEA
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jul 2025
YEG - SEA
Food
7.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jul 2025
YEG - SEA
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.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Ontario to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Ontario to Idaho
Discover the top 3 airlines that operate flights from Ontario to Idaho. 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 629,999 searches. Data last updated 30 July 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Ontario to Idaho?
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Why should you use Cheapflights to find cheap flight tickets from Ontario to Idaho?
Cheapflights helps you find that perfect flight to Idaho from Ontario by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Ontario to Idaho with no change fees?
Yes! Cheapflights helps users easily find flights from Ontario to Idaho with no change fees.
Can Cheapflights notify me if prices for flights from Ontario to Idaho become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!