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Cheap flights from Ontario to Idaho Falls from $160

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 7/4. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:58 pm - 1:34 pm
ONT
-
IDA
21h 36m
1 stop
Multiple Airlines Logo
7:47 pm - 12:02 pm
IDA
-
ONT
17h 15m
1 stop
$248Multiple Airlines
Thu, Oct 29 - Mon, Nov 9
Multiple Airlines Logo
11:19 am - 12:36 pm
ONT
-
IDA
24h 17m
1 stop
Multiple Airlines Logo
7:47 pm - 12:02 pm
IDA
-
ONT
17h 15m
1 stop
$303Multiple Airlines
Sun, Nov 1 - Mon, Nov 9
Multiple Airlines Logo
11:19 am - 1:34 pm
ONT
-
IDA
25h 15m
1 stop
Multiple Airlines Logo
8:24 pm - 12:02 pm
IDA
-
ONT
16h 38m
1 stop
$318Multiple Airlines
Thu, Oct 29 - Fri, Nov 6
Delta Logo
1:00 pm - 6:14 pm
ONT
-
IDA
4h 14m
1 stop
Delta Logo
6:45 pm - 11:48 pm
IDA
-
ONT
6h 03m
1 stop
$319Delta
Mon, Nov 2 - Thu, Nov 5
Delta Logo
7:00 am - 6:14 pm
ONT
-
IDA
10h 14m
2 stops
Delta Logo
6:45 pm - 11:48 pm
IDA
-
ONT
6h 03m
1 stop
$324Delta
Mon, Nov 2 - Mon, Nov 30
Delta Logo
7:00 am - 6:14 pm
ONT
-
IDA
10h 14m
2 stops
Delta Logo
1:10 pm - 10:43 pm
IDA
-
ONT
10h 33m
2 stops
$329Delta
Mon, Nov 2 - Tue, Nov 3
Alaska Airlines Logo
5:32 pm - 1:06 pm
ONT
-
IDA
18h 34m
1 stop
Alaska Airlines Logo
7:15 am - 1:09 pm
IDA
-
ONT
6h 54m
1 stop
$339Alaska Airlines
Sat, Jul 18 - Thu, Jul 23
Delta Logo
5:05 pm - 10:19 pm
ONT
-
IDA
4h 14m
1 stop
Delta Logo
6:45 pm - 11:48 pm
IDA
-
ONT
6h 03m
1 stop
$349Delta
Fri, Oct 30 - Sat, Nov 7
Delta Logo
5:05 pm - 10:19 pm
ONT
-
IDA
4h 14m
1 stop
Delta Logo
1:10 pm - 10:43 pm
IDA
-
ONT
10h 33m
2 stops
$354Delta
Fri, Oct 30 - Tue, Nov 3
Delta Logo
7:00 am - 6:14 pm
ONT
-
IDA
10h 14m
2 stops
Delta Logo
1:10 pm - 10:43 pm
IDA
-
ONT
10h 33m
2 stops
$359Delta
Mon, Nov 2 - Wed, Nov 4

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Alaska Airlines flights from Ontario to Idaho Falls

Our best Alaska Airlines deals on Ontario to Idaho Falls flight tickets
Alaska Airlines
Nov 2
ONT7:15 amOntario
5h 01m
1 stop
IDA1:16 pmIdaho Falls Fanning Field
Nov 24
IDA4:03 pmIdaho Falls Fanning Field
7h 36m
1 stop
ONT10:39 pmOntario
$319
Alaska Airlines
Jul 18
ONT5:32 pmOntario
18h 34m
1 stop
IDA1:06 pmIdaho Falls Fanning Field
Jul 23
IDA7:15 amIdaho Falls Fanning Field
6h 54m
1 stop
ONT1:09 pmOntario
$339
Alaska Airlines
Oct 24
ONT7:23 amOntario
4h 43m
1 stop
IDA1:06 pmIdaho Falls Fanning Field
Oct 28
IDA6:09 amIdaho Falls Fanning Field
8h 10m
1 stop
ONT1:19 pmOntario
$364

Delta flights from Ontario to Idaho Falls

Our best Delta deals on Ontario to Idaho Falls flight tickets
Delta
Nov 2
ONT7:00 amOntario
10h 14m
2 stops
IDA6:14 pmIdaho Falls Fanning Field
Nov 4
IDA1:10 pmIdaho Falls Fanning Field
4h 02m
1 stop
ONT4:12 pmOntario
$324
Delta
Nov 2
ONT7:00 amOntario
10h 14m
2 stops
IDA6:14 pmIdaho Falls Fanning Field
Nov 26
IDA1:10 pmIdaho Falls Fanning Field
10h 33m
2 stops
ONT10:43 pmOntario
$329
Delta
Oct 30
ONT5:05 pmOntario
4h 14m
1 stop
IDA10:19 pmIdaho Falls Fanning Field
Nov 6
IDA6:45 pmIdaho Falls Fanning Field
6h 03m
1 stop
ONT11:48 pmOntario
$349

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated June 14, 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

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 10/29

2:58 pm-1:34 pm

1 stop21h 36m

Idaho Falls Fanning Field

Mon 11/9

7:47 pm-12:02 pm

1 stop17h 15m

$248

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Sun 11/1

11:19 am-12:36 pm

1 stop24h 17m

Idaho Falls Fanning Field

Mon 11/9

7:47 pm-12:02 pm

1 stop17h 15m

$303

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 10/29

11:19 am-1:34 pm

1 stop25h 15m

Idaho Falls Fanning Field

Fri 11/6

8:24 pm-12:02 pm

1 stop16h 38m

$318
Quickest round-trip

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Mon 11/2

1:00 pm-6:14 pm

1 stop4h 14m

Idaho Falls Fanning Field

Thu 11/5

6:45 pm-11:48 pm

1 stop6h 03m

$319

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Mon 11/2

7:00 am-6:14 pm

2 stops10h 14m

Idaho Falls Fanning Field

Mon 11/30

6:45 pm-11:48 pm

1 stop6h 03m

$324

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Mon 11/2

7:00 am-6:14 pm

2 stops10h 14m

Idaho Falls Fanning Field

Tue 11/3

1:10 pm-10:43 pm

2 stops10h 33m

$329

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Sat 7/18

5:32 pm-1:06 pm

1 stop18h 34m

Idaho Falls Fanning Field

Thu 7/23

7:15 am-1:09 pm

1 stop6h 54m

$339

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Fri 10/30

5:05 pm-10:19 pm

1 stop4h 14m

Idaho Falls Fanning Field

Sat 11/7

6:45 pm-11:48 pm

1 stop6h 03m

$349

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Fri 10/30

5:05 pm-10:19 pm

1 stop4h 14m

Idaho Falls Fanning Field

Tue 11/3

1:10 pm-10:43 pm

2 stops10h 33m

$354

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Mon 11/2

7:00 am-6:14 pm

2 stops10h 14m

Idaho Falls Fanning Field

Wed 11/4

1:10 pm-10:43 pm

2 stops10h 33m

$359

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from 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 typical price of a round-trip flight between Ontario and Idaho Falls?

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of January, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $297.

When to book flights from Ontario to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Idaho Falls (ONT to IDA) flight deals and tips

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

Fastest flight time

3h 43m

Direct flights

None
The fastest flight from Ontario to Idaho Falls takes 3h 43m
There are no direct flights from Ontario to Idaho Falls. There are no popular flight routes from Ontario to Idaho Falls.
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Frequently asked questions about flying from Ontario to Idaho Falls

  • How far is Ontario to Idaho Falls Fanning Field by plane?

    A flight from Ontario to Idaho Falls Fanning Field will travel around 715.8 mi. Flights usually cover this in 3h 43m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Ontario Airport to Idaho Falls Fanning Field Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario Airport to Idaho Falls Fanning Field Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Idaho Falls Fanning Field Airport.

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

    The necessary travel and health documents for your Idaho Falls Fanning Field Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Idaho Falls?

Best airlines flying from Ontario to Idaho Falls

Compare and see reviews for airlines that fly from Ontario to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $180Free CancellationRating
7.9
8,404 reviews
Search Delta flights

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?

It is quick and easy to find Ontario to Idaho Falls flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho Falls that suits you.

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

momondo does allow users to show only those flights to Idaho Falls from Ontario which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Idaho Falls.

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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