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Cheap flights from Ontario to Idaho Falls from $285

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 8/21. 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
1 adult, Economy, 0 bags

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
2:00 pm - 10:53 am
YOW
-
IDA
22h 53m
2 stops
United Airlines Logo
5:40 pm - 9:16 pm
IDA
-
YOW
25h 36m
2 stops
$502United Airlines
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
4:36 pm - 10:53 am
YOW
-
IDA
20h 17m
2 stops
United Airlines Logo
5:40 pm - 2:09 pm
IDA
-
YOW
18h 29m
2 stops
$503United Airlines
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
5:20 pm - 1:29 pm
YOW
-
IDA
22h 09m
2 stops
United Airlines Logo
4:04 pm - 1:59 pm
IDA
-
YOW
19h 55m
2 stops
$547United Airlines
Wed, Aug 12 - Sat, Aug 15
United Airlines Logo
5:20 pm - 1:29 pm
YOW
-
IDA
22h 09m
2 stops
United Airlines Logo
12:33 pm - 9:35 pm
IDA
-
YOW
7h 02m
1 stop
$591United Airlines
Wed, Aug 12 - Sat, Aug 15
United Airlines Logo
9:45 am - 9:21 pm
YOW
-
IDA
13h 36m
3 stops
United Airlines Logo
7:00 am - 9:56 pm
IDA
-
YOW
12h 56m
2 stops
$788United Airlines
Sat, Oct 31 - Tue, Nov 3
Multiple Airlines Logo
1:20 pm - 3:37 pm
YOW
-
IDA
28h 17m
2 stops
Multiple Airlines Logo
1:43 pm - 5:35 pm
IDA
-
YOW
25h 52m
3 stops
$799Multiple Airlines
Wed, Aug 12 - Sat, Aug 15
United Airlines Logo
9:45 am - 9:21 pm
YOW
-
IDA
13h 36m
3 stops
United Airlines Logo
7:00 am - 9:56 pm
IDA
-
YOW
12h 56m
2 stops
$808United Airlines
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
9:45 am - 9:21 pm
YOW
-
IDA
13h 36m
3 stops
United Airlines Logo
7:00 am - 9:56 pm
IDA
-
YOW
12h 56m
2 stops
$829United Airlines
Sat, Oct 31 - Tue, Nov 3
Multiple Airlines Logo
1:20 pm - 1:06 pm
YOW
-
IDA
25h 46m
3 stops
Multiple Airlines Logo
7:15 am - 5:35 pm
IDA
-
YOW
32h 20m
3 stops
$898Multiple Airlines
Wed, Aug 12 - Sat, Aug 15

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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
Oct 31
YOW2:00 pmOttawa
22h 53m
2 stops
IDA10:53 amIdaho Falls Fanning Field
Nov 3
IDA5:40 pmIdaho Falls Fanning Field
25h 36m
2 stops
YOW9:16 pmOttawa
$502
United Airlines
Dec 8
YOW11:00 amOttawa
12h 08m
2 stops
IDA9:08 pmIdaho Falls Fanning Field
Dec 9
IDA7:00 amIdaho Falls Fanning Field
12h 56m
2 stops
YOW9:56 pmOttawa
$503
United Airlines
Aug 12
YOW5:20 pmOttawa
22h 09m
2 stops
IDA1:29 pmIdaho Falls Fanning Field
Aug 15
IDA4:04 pmIdaho Falls Fanning Field
19h 55m
2 stops
YOW1:59 pmOttawa
$547

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 July 9, 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

Sat 10/31

2:00 pm-10:53 am

2 stops22h 53m

Idaho Falls Fanning Field

Tue 11/3

5:40 pm-9:16 pm

2 stops25h 36m

$502

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Sat 10/31

4:36 pm-10:53 am

2 stops20h 17m

Idaho Falls Fanning Field

Tue 11/3

5:40 pm-2:09 pm

2 stops18h 29m

$503

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Wed 8/12

5:20 pm-1:29 pm

2 stops22h 09m

Idaho Falls Fanning Field

Sat 8/15

4:04 pm-1:59 pm

2 stops19h 55m

$547

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Wed 8/12

5:20 pm-1:29 pm

2 stops22h 09m

Idaho Falls Fanning Field

Sat 8/15

12:33 pm-9:35 pm

1 stop7h 02m

$591
Quickest round-trip

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Sat 10/31

9:45 am-9:21 pm

3 stops13h 36m

Idaho Falls Fanning Field

Tue 11/3

7:00 am-9:56 pm

2 stops12h 56m

$788

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Wed 8/12

1:20 pm-3:37 pm

2 stops28h 17m

Idaho Falls Fanning Field

Sat 8/15

1:43 pm-5:35 pm

3 stops25h 52m

$799

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Sat 10/31

9:45 am-9:21 pm

3 stops13h 36m

Idaho Falls Fanning Field

Tue 11/3

7:00 am-9:56 pm

2 stops12h 56m

$808

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Sat 10/31

9:45 am-9:21 pm

3 stops13h 36m

Idaho Falls Fanning Field

Tue 11/3

7:00 am-9:56 pm

2 stops12h 56m

$829

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Wed 8/12

1:20 pm-1:06 pm

3 stops25h 46m

Idaho Falls Fanning Field

Sat 8/15

7:15 am-5:35 pm

3 stops32h 20m

$898
Cheapest one-way

OttawaIdaho Falls

YOW - IDA

YOWIDA

Ottawa

Fri 8/21

5:20 pm-3:23 pm

2 stops24h 03m

$285

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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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

12h 08m

Direct flights

None
The fastest flight from Region of Ontario to Idaho Falls takes 12h 08m
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.
Search flight deals

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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