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Cheap flights from Ontario to Idaho Falls from $165

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 5/13. 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

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
8:44 am - 3:27 pm
ONT
-
IDA
5h 43m
1 stop
Multiple Airlines Logo
10:21 pm - 3:44 pm
IDA
-
ONT
18h 23m
1 stop
$190Multiple Airlines
Mon, May 11 - Mon, May 11
Multiple Airlines Logo
8:44 am - 3:27 pm
ONT
-
IDA
5h 43m
1 stop
Multiple Airlines Logo
10:21 pm - 3:44 pm
IDA
-
ONT
18h 23m
1 stop
$265Multiple Airlines
Fri, May 15 - Mon, May 18
Multiple Airlines Logo
3:40 pm - 4:00 pm
ONT
-
IDA
23h 20m
1 stop
Multiple Airlines Logo
10:47 pm - 7:48 pm
IDA
-
ONT
22h 01m
1 stop
$268Multiple Airlines
Thu, Jul 23 - Mon, Jul 27
Multiple Airlines Logo
3:40 pm - 4:00 pm
ONT
-
IDA
23h 20m
1 stop
Multiple Airlines Logo
10:47 pm - 3:09 pm
IDA
-
ONT
17h 22m
1 stop
$272Multiple Airlines
Thu, Jul 16 - Mon, Jul 20
Multiple Airlines Logo
8:44 am - 3:27 pm
ONT
-
IDA
5h 43m
1 stop
Multiple Airlines Logo
10:21 pm - 7:11 pm
IDA
-
ONT
21h 50m
2 stops
$288Multiple Airlines
Mon, May 11 - Mon, May 11
Multiple Airlines Logo
8:39 pm - 4:00 pm
ONT
-
IDA
18h 21m
2 stops
Multiple Airlines Logo
10:47 pm - 7:48 pm
IDA
-
ONT
22h 01m
1 stop
$306Multiple Airlines
Thu, Jul 23 - Mon, Jul 27
Alaska Airlines Logo
6:00 am - 3:26 pm
ONT
-
IDA
8h 26m
1 stop
Alaska Airlines Logo
1:54 pm - 6:47 pm
IDA
-
ONT
5h 53m
1 stop
$329Alaska Airlines
Sat, May 30 - Wed, Jun 3
Multiple Airlines Logo
8:44 am - 3:27 pm
ONT
-
IDA
5h 43m
1 stop
Multiple Airlines Logo
4:17 pm - 3:44 pm
IDA
-
ONT
24h 27m
2 stops
$331Multiple Airlines
Fri, May 15 - Mon, May 18
Delta Logo
6:00 am - 10:47 am
ONT
-
IDA
3h 47m
1 stop
Delta Logo
6:00 am - 8:53 am
IDA
-
ONT
3h 53m
1 stop
$354Delta
Wed, May 27 - Sun, May 31
Alaska Airlines Logo
7:00 am - 1:17 pm
ONT
-
IDA
5h 17m
1 stop
Alaska Airlines Logo
4:03 pm - 11:56 pm
IDA
-
ONT
8h 53m
1 stop
$369Alaska Airlines
Tue, May 19 - Tue, May 26

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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
May 30
ONT6:00 amOntario
8h 26m
1 stop
IDA3:26 pmIdaho Falls Fanning Field
Jun 3
IDA1:54 pmIdaho Falls Fanning Field
5h 53m
1 stop
ONT6:47 pmOntario
$329
Alaska Airlines
May 19
ONT7:00 amOntario
5h 17m
1 stop
IDA1:17 pmIdaho Falls Fanning Field
May 26
IDA4:03 pmIdaho Falls Fanning Field
8h 53m
1 stop
ONT11:56 pmOntario
$369
Alaska Airlines
May 30
ONT6:00 amOntario
8h 26m
1 stop
IDA3:26 pmIdaho Falls Fanning Field
Jun 3
IDA4:03 pmIdaho Falls Fanning Field
8h 55m
2 stops
ONT11:58 pmOntario
$371

Delta flights from Ontario to Idaho Falls

Our best Delta deals on Ontario to Idaho Falls flight tickets
Delta
May 27
ONT6:00 amOntario
3h 47m
1 stop
IDA10:47 amIdaho Falls Fanning Field
May 31
IDA6:00 amIdaho Falls Fanning Field
3h 53m
1 stop
ONT8:53 amOntario
$354
Delta
May 15
ONT6:00 amOntario
3h 47m
1 stop
IDA10:47 amIdaho Falls Fanning Field
May 18
IDA6:00 amIdaho Falls Fanning Field
3h 53m
1 stop
ONT8:53 amOntario
$379
Delta
May 14
ONT6:00 amOntario
3h 47m
1 stop
IDA10:47 amIdaho Falls Fanning Field
May 17
IDA6:00 amIdaho Falls Fanning Field
3h 53m
1 stop
ONT8:53 amOntario
$386

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 April 25, 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

Mon 5/11

8:44 am-3:27 pm

1 stop5h 43m

Idaho Falls Fanning Field

Mon 5/11

10:21 pm-3:44 pm

1 stop18h 23m

$190

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Fri 5/15

8:44 am-3:27 pm

1 stop5h 43m

Idaho Falls Fanning Field

Mon 5/18

10:21 pm-3:44 pm

1 stop18h 23m

$265

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 7/23

3:40 pm-4:00 pm

1 stop23h 20m

Idaho Falls Fanning Field

Mon 7/27

10:47 pm-7:48 pm

1 stop22h 01m

$268

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 7/16

3:40 pm-4:00 pm

1 stop23h 20m

Idaho Falls Fanning Field

Mon 7/20

10:47 pm-3:09 pm

1 stop17h 22m

$272

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Mon 5/11

8:44 am-3:27 pm

1 stop5h 43m

Idaho Falls Fanning Field

Mon 5/11

10:21 pm-7:11 pm

2 stops21h 50m

$288

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Thu 7/23

8:39 pm-4:00 pm

2 stops18h 21m

Idaho Falls Fanning Field

Mon 7/27

10:47 pm-7:48 pm

1 stop22h 01m

$306

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Sat 5/30

6:00 am-3:26 pm

1 stop8h 26m

Idaho Falls Fanning Field

Wed 6/3

1:54 pm-6:47 pm

1 stop5h 53m

$329

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Fri 5/15

8:44 am-3:27 pm

1 stop5h 43m

Idaho Falls Fanning Field

Mon 5/18

4:17 pm-3:44 pm

2 stops24h 27m

$331
Quickest round-trip

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Wed 5/27

6:00 am-10:47 am

1 stop3h 47m

Idaho Falls Fanning Field

Sun 5/31

6:00 am-8:53 am

1 stop3h 53m

$354

OntarioIdaho Falls

ONT - IDA

ONTIDA

Ontario

Tue 5/19

7:00 am-1:17 pm

1 stop5h 17m

Idaho Falls Fanning Field

Tue 5/26

4:03 pm-11:56 pm

1 stop8h 53m

$369

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?

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 47m

Direct flights

None
The fastest flight from Ontario to Idaho Falls takes 3h 47m
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 47m, 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
8,458 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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