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Cheap flights from Ontario to Idaho Falls from $299

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Idaho Falls departing on 5/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:20 pm - 1:25 pm
YOW
-
IDA
22h 05m
2 stops
United Airlines Logo
5:54 pm - 10:03 am
IDA
-
YOW
14h 09m
2 stops
$549United Airlines
Sun, Jul 19 - Sat, Aug 1
United Airlines Logo
6:25 am - 1:25 pm
YOW
-
IDA
9h 00m
2 stops
United Airlines Logo
12:30 pm - 9:35 pm
IDA
-
YOW
7h 05m
1 stop
$799United Airlines
Sun, Jul 19 - Sat, Aug 1
American Airlines Logo
7:00 am - 1:24 pm
YOW
-
IDA
32h 24m
2 stops
American Airlines Logo
1:54 pm - 2:55 pm
IDA
-
YOW
23h 01m
3 stops
$1,240American Airlines
Sun, Jul 19 - Sat, Aug 1

United Airlines flights from Region of Ontario to Idaho Falls

Our best United Airlines deals on Region of Ontario to Idaho Falls flight tickets
United Airlines
Jul 19
YOW5:20 pmOttawa
22h 05m
2 stops
IDA1:25 pmIdaho Falls Fanning Field
Aug 1
IDA5:54 pmIdaho Falls Fanning Field
14h 09m
2 stops
YOW10:03 amOttawa
$549
United Airlines
Jul 19
YOW6:25 amOttawa
9h 00m
2 stops
IDA1:25 pmIdaho Falls Fanning Field
Aug 1
IDA12:30 pmIdaho Falls Fanning Field
7h 05m
1 stop
YOW9:35 pmOttawa
$799

momondo Fare Finder

 
Customize your flight search to find flights from Region of 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, momondo users made 832,500 searches. Data last updated April 4, 2026.
Use the filters below to find and compare flights from Ontario to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Sun 7/19

5:20 pm-1:25 pm

2 stops22h 05m

Idaho Falls Fanning Field

Sat 8/1

5:54 pm-10:03 am

2 stops14h 09m

$549
Quickest round-trip

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Sun 7/19

6:25 am-1:25 pm

2 stops9h 00m

Idaho Falls Fanning Field

Sat 8/1

12:30 pm-9:35 pm

1 stop7h 05m

$799

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Sun 7/19

7:00 am-1:24 pm

2 stops32h 24m

Idaho Falls Fanning Field

Sat 8/1

1:54 pm-2:55 pm

3 stops23h 01m

$1,240
Cheapest one-way

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Sun 5/17

6:55 am-3:27 pm

3 stops34h 32m

$299
Quickest one-way

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Sun 5/17

5:50 pm-9:55 am

2 stops18h 05m

$336

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Region of Ontario to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Idaho Falls Fanning Field?

United Airlines is the most popular carrier operating from Ontario to Idaho Falls Fanning Field

Cheap Region of Ontario to Idaho Falls flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Idaho Falls

Fastest flight time

13h 22m

Direct flights

None
The fastest flight from Region of Ontario to Idaho Falls takes 13h 22m
There are no direct flights from Region of Ontario to Idaho Falls. There are no popular flight routes from Region of Ontario to Idaho Falls.
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Frequently asked questions about flying from Ontario to Idaho Falls

  • When did momondo last update prices for flights from Ontario to Idaho Falls Fanning Field Airport?

    Prices for flights from Ontario to Idaho Falls Fanning Field Airport were last updated today.

  • How old do you have to be to fly from Ontario to Idaho Falls Fanning Field Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ontario to Idaho Falls Fanning Field Airport.

  • What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

    The required travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Idaho Falls?

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

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Idaho Falls?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Idaho Falls. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Idaho Falls with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Idaho Falls from Ontario with this policy.

How can momondo help me find flights from Ontario to Idaho Falls?

Once all potential Ontario to Idaho Falls flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Idaho Falls right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Idaho Falls flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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