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$147+ Cheap flights from Idaho Falls (IDA) 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — YYZ
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Idaho Falls to Ontario

Keep the following information in mind while searching for Idaho Falls to Ontario flight deals. Data was last updated July 29, 2025.

Round-trip from

$375
(United Airlines)

One-way from

$147
(Kiwi.com)
From Idaho Falls Fanning Field to Ontario
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One-way flight from Idaho Falls Fanning Field to Ontario
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Find flight deals from Idaho Falls to Ontario

Cheapest flights from Idaho Falls to Ontario
Explore the most affordable flight options available from Idaho Falls to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This United Airlines deal was found by Cheapflights users on 7/26. 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.
Wed 8/204:15 pmIDA - YYZ
2 stops15h 49mUnited Airlines
Tue 8/269:44 amYYZ - IDA
1 stop7h 27mUnited Airlines
Deal found 7/26$375
This Delta deal was found by Cheapflights users on 7/28. 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 9/126:51 pmIDA - YYZ
2 stops15h 16mDelta
Fri 9/195:43 pmYYZ - IDA
1 stop6h 42mDelta
Deal found 7/28$396
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 9/113:57 pmIDA - YYZ
1 stop21h 03mAlaska Airlines
Thu 9/184:45 pmYYZ - IDA
1 stop7h 54mAlaska Airlines
Deal found 7/28$424
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1210:55 pmIDA - YYZ
3 stops28h 56mMultiple Airlines
Fri 9/199:30 amYYZ - IDA
1 stop8h 35mMultiple Airlines
Deal found 7/28$540

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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 29, 2025.
Use the filters below to find and compare flights from Idaho Falls to Ontario that are best for you.

Fly from

Idaho Falls

Fly to

Ontario

Route

Depart

Return

Price

Idaho FallsToronto

IDA - YYZ

IDAYYZ

Idaho Falls Fanning Field

Wed 8/20

4:15 pm-10:04 am

2 stops15h 49m

Toronto Pearson Intl

Tue 8/26

9:44 am-3:11 pm

1 stop7h 27m

$375

Idaho FallsToronto

IDA - YYZ

IDAYYZ

Idaho Falls Fanning Field

Fri 9/12

6:51 pm-12:07 pm

2 stops15h 16m

Toronto Pearson Intl

Fri 9/19

5:43 pm-10:25 pm

1 stop6h 42m

$396

Idaho FallsToronto

IDA - YYZ

IDAYYZ

Idaho Falls Fanning Field

Thu 9/11

3:57 pm-3:00 pm

1 stop21h 03m

Toronto Pearson Intl

Thu 9/18

4:45 pm-10:39 pm

1 stop7h 54m

$424

Idaho FallsToronto

IDA - YYZ

IDAYYZ

Idaho Falls Fanning Field

Fri 9/12

10:55 pm-5:51 am

3 stops28h 56m

Toronto Pearson Intl

Fri 9/19

9:30 am-4:05 pm

1 stop8h 35m

$540

Idaho FallsToronto

IDA - YYZ

IDAYYZ

Idaho Falls Fanning Field

Fri 9/12

10:55 pm-10:52 pm

2 stops21h 57m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Idaho Falls to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Idaho Falls 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 Falls 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 29, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and United Airlines from Idaho Falls to Ontario. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Idaho Falls to Ontario?

    Located just 3.8 mi from the city center, Idaho Falls Fanning Field (IDA) is the airport most travelers will use when flying to Ontario from Idaho Falls.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho Falls 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 Falls to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Idaho Falls to Region of Ontario (average of $243). Flying from Idaho Falls to Region of Ontario in August is currently the most expensive (average of $348). 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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