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Idaho Falls

$163+ Cheap flights from Ontario to Idaho Falls (ONT - IDA)

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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IDA
Feb 23 — Mar 21
Sun 2/23
Sun 3/2
1 adult, Economy
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Cheap flight deals from Ontario to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$266
(Alaska Airlines)

One-way from

$163
(Alaska Airlines)

Popular in

July

Cheapest in

October

Average price

$568
Provider with most accurate pricing for Ontario-Idaho Falls Fanning Field flight deals.
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Provider most trusted by Cheapflights users for Ontario-Idaho Falls Fanning Field flights.
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From Ontario to Idaho Falls Fanning Field
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One-way flight from Ontario to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 21% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Ontario to Idaho Falls

Cheapest flights from Ontario to Idaho Falls
Explore the most affordable flight options available from Ontario to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2025.

This Delta deal was found by Cheapflights users on 2/18. 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 3/131:30 pmONT - IDA
1 stop3h 43mDelta
Sun 3/166:55 pmIDA - ONT
1 stop6h 01mDelta
Deal found 2/18$277
This Alaska Airlines deal was found by Cheapflights users on 2/18. 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.
Tue 3/44:20 pmONT - IDA
1 stop5h 16mAlaska Airlines
Tue 3/114:07 pmIDA - ONT
1 stop6h 20mAlaska Airlines
Deal found 2/18$384
This United Airlines deal was found by Cheapflights users on 2/17. 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 8/145:10 amONT - IDA
1 stop7h 23mUnited Airlines
Mon 8/184:15 pmIDA - ONT
1 stop5h 39mUnited Airlines
Deal found 2/17$485
This Hawaiian Airlines deal was found by Cheapflights users on 2/18. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/264:05 pmONT - IDA
1 stop5h 33mHawaiian Airlines
Mon 6/304:00 pmIDA - ONT
1 stop7h 37mHawaiian Airlines
Deal found 2/18$575
This American Airlines deal was found by Cheapflights users on 2/18. 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.
Tue 6/2412:57 amONT - IDA
1 stop10h 21mAmerican Airlines
Wed 7/27:36 amIDA - ONT
1 stop12h 23mAmerican Airlines
Deal found 2/18$897
This United deal was found by Cheapflights users on 2/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/231:44 pmONT - IDA
1 stop6h 23mMultiple Airlines
Tue 2/258:00 amIDA - ONT
2 stops9h 59mMultiple Airlines
Deal found 2/18$1,092

Find flights from Ontario to Idaho Falls within your budget

Customize your flight search to find flights from Ontario to Idaho Falls 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 February 18, 2025.

Fly from

Ontario

Fly to

Idaho Falls

Route

Depart

Return

Price

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 3/13

1:30 pm-6:13 pm

1 stop3h 43m

Idaho Falls Fanning Field

Sun 3/16

6:55 pm-11:56 pm

1 stop6h 01m

$277

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Tue 3/4

4:20 pm-10:36 pm

1 stop5h 16m

Idaho Falls Fanning Field

Tue 3/11

4:07 pm-9:27 pm

1 stop6h 20m

$384

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 8/14

5:10 am-1:33 pm

1 stop7h 23m

Idaho Falls Fanning Field

Mon 8/18

4:15 pm-8:54 pm

1 stop5h 39m

$485

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 6/26

4:05 pm-10:38 pm

1 stop5h 33m

Idaho Falls Fanning Field

Mon 6/30

4:00 pm-10:37 pm

1 stop7h 37m

$575

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Tue 6/24

12:57 am-12:18 pm

1 stop10h 21m

Idaho Falls Fanning Field

Wed 7/2

7:36 am-6:59 pm

1 stop12h 23m

$897

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Tue 3/18

4:20 pm-10:36 pm

1 stop5h 16m

$163

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 8/14

1:34 pm-8:53 pm

1 stop6h 19m

$286

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Fri 6/27

4:05 pm-10:38 pm

1 stop5h 33m

$326

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 8/14

6:00 am-10:38 pm

3 stops15h 38m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Compare providers for flights from Ontario to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Idaho Falls in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Idaho Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Idaho Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Idaho Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls 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.

Travel insights for flights from Ontario to Idaho Falls

Get recent, data-driven insights about flights from Ontario to Idaho Falls including ideal travel times, pricing trends, and more.

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Idaho Falls (average of $380). Flying from Ontario to Idaho Falls in July is currently the most expensive (average of $628). 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 ONT to IDA?

Find hourly flight availability from Ontario to Idaho Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 18, 2025.

When flying from Ontario to Idaho Falls, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 11% versus a flight in the afternoon.

Rainfall in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Idaho Falls ranges from 0.6 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Idaho Falls when rainfall is around 0.6 in.

Temperature in Idaho Falls by month

Plan your trip to Idaho Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Idaho Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. 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 Falls. Reviews last updated February 18, 2025.
Alaska Airlines
8.0
Very good
9,687 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,687 reviews
Alaska Airlines
8.0
Very good
9,687 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,246 reviews
Alaska Airlines
8.0
Very good
9,687 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines
7.9
Good
2,319 reviews
Alaska Airlines
8.0
Very good
9,687 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines
7.4
Good
8,779 reviews
Alaska Airlines
8.0
Very good
9,687 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,687 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Entertainment

7.1

Food

7.1

Comfort

7.9

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

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

  • What are the cheapest airlines flying from Ontario to Idaho Falls round-trip?

    Cheapflights users have booked flights from Ontario to Idaho Falls round-trip from $266. Other airlines that can offer you cheap pricing are Delta, from $272, and Hawaiian Airlines, from $292. You may be able to fly from Ontario to Idaho Falls for 42% less than the average price by searching for these airlines.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Idaho Falls (average of $380). Flying from Ontario to Idaho Falls in July is currently the most expensive (average of $628). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Rexburg

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Top airline flying from Ontario to Idaho Falls

Discover the top airline that operate flights from Ontario to Idaho Falls. 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 February 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$248Average$399FlexibilityNo cancel feeOn-timeN/A
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