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Cheap flights from Ontario to Idaho from C$ 254

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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — BOI
27 May — 3 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ontario to Idaho

Enter your travel dates to find the best prices.

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 27 April 2026.

Wed 10/65:45 p.m.
YYZ
-
BOI
1 stop6h 19m
Delta
Sun 14/66:00 a.m.
BOI
-
YYZ
2 stops15h 14m
Delta
Deal found 24/4C$ 426
Wed 3/66:12 p.m.
YYZ
-
GEG
2 stops8h 23m
Delta
Fri 5/66:49 a.m.
GEG
-
YYZ
2 stops13h 10m
Delta
Deal found 23/4C$ 426
Sat 25/76:30 a.m.
YYZ
-
BOI
2 stops14h 29m
Delta
Tue 28/78:25 a.m.
BOI
-
YYZ
2 stops8h 08m
Delta
Deal found 26/4C$ 433
Sat 4/76:30 a.m.
YYZ
-
GEG
2 stops12h 40m
Delta
Sat 11/712:50 p.m.
GEG
-
YYZ
1 stop8h 08m
Delta
Deal found 24/4C$ 433
Wed 19/810:45 a.m.
YYZ
-
GEG
1 stop7h 13m
United Airlines
Wed 26/85:00 a.m.
GEG
-
YYZ
1 stop13h 32m
United Airlines
Deal found 22/4C$ 435
Mon 25/511:29 a.m.
YYZ
-
GEG
1 stop12h 51m
Delta
Mon 1/67:25 a.m.
GEG
-
YYZ
2 stops12h 34m
Delta
Deal found 27/4C$ 451
Sun 7/611:38 a.m.
YYZ
-
GEG
1 stop12h 59m
Delta
Sun 14/66:48 a.m.
GEG
-
YYZ
2 stops13h 14m
Delta
Deal found 22/4C$ 452
Sun 13/912:00 p.m.
YYZ
-
BOI
2 stops28h 22m
WestJet
Sat 19/94:05 p.m.
BOI
-
YYZ
2 stops12h 50m
WestJet
Deal found 23/4C$ 467
Wed 19/81:30 p.m.
YYZ
-
GEG
2 stops12h 18m
WestJet
Wed 26/85:40 p.m.
GEG
-
YYZ
2 stops10h 15m
WestJet
Deal found 22/4C$ 469
Wed 2/91:30 p.m.
YYZ
-
BOI
2 stops26h 52m
WestJet
Mon 7/94:05 p.m.
BOI
-
YYZ
2 stops12h 50m
WestJet
Deal found 24/4C$ 476
Sat 19/912:15 p.m.
YTZ
-
BOI
2 stops23h 20m
Air Canada
Wed 23/97:01 p.m.
BOI
-
YTZ
2 stops19h 40m
Air Canada
Deal found 24/4C$ 493
Wed 5/812:09 p.m.
YYZ
-
BOI
2 stops13h 37m
Delta
Sun 9/810:29 a.m.
BOI
-
YYZ
1 stop10h 45m
Delta
Deal found 22/4C$ 493

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 27 April 2026.

Round-trip from

C$ 426

One-way from

C$ 254

Popular in

July

Cheapest in

November

Average price

C$ 581
Delta
  • Delta
  • 10/6-14/6
  • 3 total stops
  • 21h 33m total
  • Ontario to Idaho
Search Deals
Delta
  • Delta
  • 9/6
  • 2 total stops
  • 13h 22m total
  • Ontario to Idaho
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 103 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 629,999 searches. Data last updated 27 April 2026.
Use the filters below to find and compare flights from Ontario to Idaho that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Wed 10/6

5:45 p.m.-10:04 p.m.

1 stop6h 19m

Boise Air Term. Gowen Fld

Sun 14/6

6:00 a.m.-9:59 p.m.

2 stops13h 59m

C$ 426
Quickest round-trip

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Sat 23/5

5:45 p.m.-9:44 p.m.

1 stop5h 59m

Boise Air Term. Gowen Fld

Sat 30/5

1:53 p.m.-11:58 p.m.

1 stop8h 05m

C$ 426

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Fri 22/5

5:45 p.m.-11:35 p.m.

1 stop8h 50m

Spokane

Fri 29/5

4:59 p.m.-10:19 a.m.

2 stops14h 20m

C$ 426

TorontoSpokane

YYZ - GEG

YYZGEG

Toronto Pearson Intl

Wed 3/6

6:30 a.m.-1:11 p.m.

1 stop9h 41m

Spokane

Fri 5/6

6:10 a.m.-11:14 p.m.

2 stops14h 04m

C$ 426

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Wed 21/10

6:30 a.m.-3:31 p.m.

1 stop11h 01m

Boise Air Term. Gowen Fld

Sat 24/10

5:00 a.m.-3:14 p.m.

1 stop8h 14m

C$ 433

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Wed 21/10

2:15 p.m.-12:04 a.m.

2 stops11h 49m

Boise Air Term. Gowen Fld

Sat 24/10

5:40 a.m.-8:28 p.m.

2 stops12h 48m

C$ 433

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Sat 25/7

6:30 a.m.-6:59 p.m.

2 stops14h 29m

Boise Air Term. Gowen Fld

Tue 28/7

8:25 a.m.-6:33 p.m.

2 stops8h 08m

C$ 433

TorontoBoise

YYZ - BOI

YYZBOI

Toronto Pearson Intl

Sat 11/7

6:00 a.m.-12:53 p.m.

1 stop8h 53m

Boise Air Term. Gowen Fld

Wed 15/7

11:53 a.m.-11:13 p.m.

2 stops9h 20m

C$ 433

TorontoBoise

YTZ - BOI

YTZBOI

Toronto Island

Sat 19/9

12:15 p.m.-11:50 p.m.

2 stops13h 35m

Boise Air Term. Gowen Fld

Wed 23/9

5:00 a.m.-10:06 a.m.

2 stops27h 06m

C$ 495

TorontoIdaho Falls

YYZ - IDA

YYZIDA

Toronto Pearson Intl

Wed 3/6

10:45 a.m.-5:19 p.m.

1 stop8h 34m

Idaho Falls Fanning Field

Tue 9/6

7:00 a.m.-9:32 p.m.

1 stop12h 32m

C$ 506

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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
No data available for this route at this time. Please check back soon.

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 27 April 2026.
Get a feel of what it's like to fly with Alaska Airlines,United Airlines, andAir Canada 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.
Alaska Airlines
7.9
Good
12,300 reviews
Check prices

Crew

8.5

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,300 reviews
Alaska Airlines
7.9
Good
12,300 reviews
Check prices

Crew

8.5

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,668 reviews
Alaska Airlines
7.9
Good
12,300 reviews
Check prices

Crew

8.5

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Air Canada
7.1
Good
10,974 reviews
Alaska Airlines
7.9
Good
12,300 reviews
Check prices

Crew

8.5

Food

7.0

Overall

7.9

Boarding

8.1

Entertainment

7.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

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?

    Airlines like Delta, United Airlines, and Air Canada fly from Region of Ontario to Idaho in about 6h 19m. The time it takes to get you to your destination can typically vary by up to 7h 16m. Region of Ontario and Idaho are separated by a distance of 2919 km. This flight may include one or multiple 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

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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.
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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 27 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 199AverageC$ 684FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapestC$ 388AverageC$ 540FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 423AverageC$ 765FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ontario to Idaho?

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Yes! Cheapflights helps users easily find flights from Ontario to Idaho with no change fees.

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