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Cheap flights from Ontario to Idaho Falls from $145

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.
American Airlines Logo
4:25 pm - 10:31 pmONT  Ontario-IDA Idaho Falls Fanning Field
5h 06m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
6:51 am - 12:38 pmIDA  Idaho Falls Fanning Field-ONT Ontario
6h 47m1 stop Phoenix Sky Harbor Intl
$473American Airlines
Tue, Dec 1 - Tue, Dec 8
Alaska Airlines Logo
7:30 am - 2:27 pmONT  Ontario-IDA Idaho Falls Fanning Field
5h 57m1 stop Portland
Alaska Airlines Logo
4:03 pm - 10:39 pmIDA  Idaho Falls Fanning Field-ONT Ontario
7h 36m1 stop Seattle/Tacoma Intl
$473Alaska Airlines
Sat, Apr 24 - Wed, Apr 28
Alaska Airlines Logo
6:01 pm - 1:17 pmONT  Ontario-IDA Idaho Falls Fanning Field
18h 16m1 stop Portland
Alaska Airlines Logo
3:44 pm - 11:13 amIDA  Idaho Falls Fanning Field-ONT Ontario
20h 29m2 stops Portland Seattle/Tacoma Intl
$488Alaska Airlines
Tue, Dec 1 - Tue, Dec 8
Alaska Airlines Logo
7:30 am - 2:27 pmONT  Ontario-IDA Idaho Falls Fanning Field
5h 57m1 stop Portland
Alaska Airlines Logo
6:15 am - 11:09 amIDA  Idaho Falls Fanning Field-ONT Ontario
5h 54m1 stop Seattle/Tacoma Intl
$503Alaska Airlines
Thu, Feb 18 - Sat, Feb 20
Alaska Airlines Logo
8:59 pm - 1:18 pmONT  Ontario-IDA Idaho Falls Fanning Field
15h 19m2 stops Seattle/Tacoma Intl Portland
Alaska Airlines Logo
3:46 pm - 10:01 amIDA  Idaho Falls Fanning Field-ONT Ontario
19h 15m1 stop Portland
$504Alaska Airlines
Fri, Nov 20 - Mon, Nov 30
Delta Logo
5:12 pm - 10:25 pmONT  Ontario-IDA Idaho Falls Fanning Field
4h 13m1 stop Salt Lake City
Delta Logo
6:59 pm - 11:57 pmIDA  Idaho Falls Fanning Field-ONT Ontario
5h 58m1 stop Salt Lake City
$506Delta
Sat, Dec 5 - Wed, Dec 9
United Airlines Logo
5:00 am - 1:28 pmONT  Ontario-IDA Idaho Falls Fanning Field
7h 28m1 stop Denver Intl
United Airlines Logo
4:20 pm - 9:00 pmIDA  Idaho Falls Fanning Field-ONT Ontario
5h 40m1 stop Denver Intl
$573United Airlines
Tue, Dec 22 - Wed, Dec 23
American Airlines Logo
9:29 am - 9:43 pmONT  Ontario-IDA Idaho Falls Fanning Field
11h 14m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
American Airlines Logo
6:36 am - 12:38 pmIDA  Idaho Falls Fanning Field-ONT Ontario
7h 02m1 stop Phoenix Sky Harbor Intl
$585American Airlines
Sat, Nov 7 - Wed, Nov 11
American Airlines Logo
4:25 pm - 10:31 pmONT  Ontario-IDA Idaho Falls Fanning Field
5h 06m1 stop Phoenix Sky Harbor Intl
American Airlines Logo
8:00 am - 4:20 pmIDA  Idaho Falls Fanning Field-ONT Ontario
9h 20m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl
$585American Airlines
Tue, Dec 1 - Tue, Dec 8
Delta Logo
1:15 pm - 6:34 pmONT  Ontario-IDA Idaho Falls Fanning Field
4h 19m1 stop Salt Lake City
Delta Logo
1:11 pm - 11:00 pmIDA  Idaho Falls Fanning Field-ONT Ontario
10h 49m2 stops Salt Lake City Seattle/Tacoma Intl
$1,607Delta
Thu, Nov 26 - Mon, Nov 30

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United Airlines flights from Ontario to Idaho Falls

Our best United Airlines deals on Ontario to Idaho Falls flight tickets
United Airlines
Dec 22
ONT5:00 amOntario
7h 28m
1 stop
IDA1:28 pmIdaho Falls Fanning Field
Dec 23
IDA4:20 pmIdaho Falls Fanning Field
5h 40m
1 stop
ONT9:00 pmOntario
$573
United Airlines
Nov 4
ONT1:29 pmOntario
6h 40m
1 stop
IDA9:09 pmIdaho Falls Fanning Field
Nov 6
IDA2:35 pmIdaho Falls Fanning Field
7h 16m
1 stop
ONT8:51 pmOntario
$606
United Airlines
Nov 25
ONT5:00 amOntario
7h 28m
1 stop
IDA1:28 pmIdaho Falls Fanning Field
Nov 27
IDA2:35 pmIdaho Falls Fanning Field
7h 16m
1 stop
ONT8:51 pmOntario
$609

Alaska Airlines flights from Ontario to Idaho Falls

Our best Alaska Airlines deals on Ontario to Idaho Falls flight tickets
Alaska Airlines
Apr 24
ONT7:30 amOntario
5h 57m
1 stop
IDA2:27 pmIdaho Falls Fanning Field
Apr 28
IDA4:03 pmIdaho Falls Fanning Field
7h 36m
1 stop
ONT10:39 pmOntario
$473
Alaska Airlines
Dec 1
ONT6:01 pmOntario
18h 16m
1 stop
IDA1:17 pmIdaho Falls Fanning Field
Dec 8
IDA3:44 pmIdaho Falls Fanning Field
20h 29m
2 stops
ONT11:13 amOntario
$488
Alaska Airlines
Feb 18
ONT7:30 amOntario
5h 57m
1 stop
IDA2:27 pmIdaho Falls Fanning Field
Feb 20
IDA6:15 amIdaho Falls Fanning Field
5h 54m
1 stop
ONT11:09 amOntario
$503

momondo Fare Finder

 
Use the filters below to find and compare flights from Ontario to Idaho Falls that are best for you.

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Route

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Price

Cheapest round-trip

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Tue 12/1

4:25 pm-10:31 pm

1 stop5h 06m

Idaho Falls Fanning Field

Tue 12/8

6:51 am-12:38 pm

1 stop6h 47m

$473

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Sat 4/24

7:30 am-2:27 pm

1 stop5h 57m

Idaho Falls Fanning Field

Wed 4/28

4:03 pm-10:39 pm

1 stop7h 36m

$473

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Tue 12/1

6:01 pm-1:17 pm

1 stop18h 16m

Idaho Falls Fanning Field

Tue 12/8

3:44 pm-11:13 am

2 stops20h 29m

$488

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Thu 2/18

7:30 am-2:27 pm

1 stop5h 57m

Idaho Falls Fanning Field

Sat 2/20

6:15 am-11:09 am

1 stop5h 54m

$503

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Fri 11/20

8:59 pm-1:18 pm

2 stops15h 19m

Idaho Falls Fanning Field

Mon 11/30

3:46 pm-10:01 am

1 stop19h 15m

$504
Quickest round-trip

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Sat 12/5

5:12 pm-10:25 pm

1 stop4h 13m

Idaho Falls Fanning Field

Wed 12/9

6:59 pm-11:57 pm

1 stop5h 58m

$506

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Tue 12/22

5:00 am-1:28 pm

1 stop7h 28m

Idaho Falls Fanning Field

Wed 12/23

4:20 pm-9:00 pm

1 stop5h 40m

$573

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Sat 11/7

9:29 am-9:43 pm

2 stops11h 14m

Idaho Falls Fanning Field

Wed 11/11

6:36 am-12:38 pm

1 stop7h 02m

$585

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Tue 12/1

4:25 pm-10:31 pm

1 stop5h 06m

Idaho Falls Fanning Field

Tue 12/8

8:00 am-4:20 pm

2 stops9h 20m

$585

OntarioIdaho Falls

ONT Ontario - IDA Idaho Falls Fanning Field

ONTIDA

Ontario

Thu 11/26

1:15 pm-6:34 pm

1 stop4h 19m

Idaho Falls Fanning Field

Mon 11/30

1:11 pm-11:00 pm

2 stops10h 49m

$1,607

Flights are sorted by cheapest round-trip flights 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 cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of June, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $0.

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

Best Price Found

$145

Fastest flight time

4h 19m

Direct flights

None
The best one-way flight to Idaho Falls from Ontario in the past 72 hours is $145. The best round-trip flight deal from Ontario to Idaho Falls found on momondo in the last 72 hours is $473.
The fastest flight from Ontario to Idaho Falls takes 4h 19m
There are no direct flights from Ontario to Idaho Falls. There are no popular flight routes from Ontario to Idaho Falls.
Search flight deals

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 4h 19m, 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 $184Free CancellationRating
7.8
8,676 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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