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Cheap flights from Idaho Falls to Los Angeles from $97

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to Los Angeles departing on 3/30. 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 Idaho Falls to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Hawaiian Airlines Logo
5:59 pm - 11:59 pm
IDA
-
ONT
7h 00m
1 stop
Hawaiian Airlines Logo
6:00 am - 10:52 pm
ONT
-
IDA
15h 52m
1 stop
$282Hawaiian Airlines
Mon, Mar 23 - Wed, Apr 1
Delta Logo
6:55 pm - 11:51 pm
IDA
-
ONT
5h 56m
1 stop
Delta Logo
5:09 pm - 10:16 pm
ONT
-
IDA
4h 07m
1 stop
$330Delta
Sun, Mar 22 - Mon, Mar 23
Multiple Airlines Logo
10:06 pm - 12:09 pm
IDA
-
ONT
15h 03m
1 stop
Multiple Airlines Logo
6:00 am - 4:19 pm
ONT
-
IDA
9h 19m
1 stop
$335Multiple Airlines
Mon, Apr 6 - Tue, Apr 14
Delta Logo
6:55 pm - 11:51 pm
IDA
-
ONT
5h 56m
1 stop
Delta Logo
5:09 pm - 10:16 pm
ONT
-
IDA
4h 07m
1 stop
$349Delta
Wed, Mar 18 - Mon, Mar 23
Delta Logo
6:55 pm - 11:51 pm
IDA
-
ONT
5h 56m
1 stop
Delta Logo
5:09 pm - 10:16 pm
ONT
-
IDA
4h 07m
1 stop
$365Delta
Sun, Mar 22 - Tue, Mar 24
Alaska Airlines Logo
4:06 pm - 2:32 pm
IDA
-
ONT
23h 26m
1 stop
Alaska Airlines Logo
4:03 pm - 10:53 pm
ONT
-
IDA
5h 50m
1 stop
$367Alaska Airlines
Mon, May 11 - Thu, May 14
Alaska Airlines Logo
5:59 pm - 11:59 pm
IDA
-
ONT
7h 00m
1 stop
Alaska Airlines Logo
6:00 am - 10:52 pm
ONT
-
IDA
15h 52m
1 stop
$383Alaska Airlines
Tue, Mar 24 - Wed, Mar 25
Delta Logo
6:55 pm - 11:51 pm
IDA
-
ONT
5h 56m
1 stop
Delta Logo
5:09 pm - 10:16 pm
ONT
-
IDA
4h 07m
1 stop
$384Delta
Mon, Mar 23 - Tue, Mar 24
Alaska Airlines Logo
4:06 pm - 11:48 pm
IDA
-
ONT
8h 42m
2 stops
Alaska Airlines Logo
4:03 pm - 10:53 pm
ONT
-
IDA
5h 50m
1 stop
$412Alaska Airlines
Mon, May 11 - Thu, May 14
Delta Logo
6:55 pm - 11:18 am
IDA
-
ONT
17h 23m
2 stops
Delta Logo
5:09 pm - 10:16 pm
ONT
-
IDA
4h 07m
1 stop
$413Delta
Mon, Mar 23 - Tue, Mar 24

Alaska Airlines flights from Idaho Falls to Ontario

Our best Alaska Airlines deals on Idaho Falls to Ontario flight tickets
Alaska Airlines
May 11
IDA4:06 pmIdaho Falls Fanning Field
23h 26m
1 stop
ONT2:32 pmOntario
May 14
ONT4:03 pmOntario
5h 50m
1 stop
IDA10:53 pmIdaho Falls Fanning Field
$367
Alaska Airlines
Mar 24
IDA5:59 pmIdaho Falls Fanning Field
7h 00m
1 stop
ONT11:59 pmOntario
Mar 25
ONT6:00 amOntario
15h 52m
1 stop
IDA10:52 pmIdaho Falls Fanning Field
$383
Alaska Airlines
May 11
IDA4:06 pmIdaho Falls Fanning Field
8h 42m
2 stops
ONT11:48 pmOntario
May 14
ONT4:03 pmOntario
5h 50m
1 stop
IDA10:53 pmIdaho Falls Fanning Field
$412

United Airlines flights from Idaho Falls to Ontario

Our best United Airlines deals on Idaho Falls to Ontario flight tickets
United Airlines
Apr 2
IDA2:30 pmIdaho Falls Fanning Field
7h 06m
1 stop
ONT8:36 pmOntario
Apr 5
ONT5:10 amOntario
7h 14m
1 stop
IDA1:24 pmIdaho Falls Fanning Field
$460
United Airlines
Mar 15
IDA2:35 pmIdaho Falls Fanning Field
7h 22m
1 stop
ONT8:57 pmOntario
Mar 19
ONT5:15 amOntario
7h 15m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
$555
United Airlines
Mar 14
IDA6:36 amIdaho Falls Fanning Field
12h 02m
2 stops
ONT5:38 pmOntario
Mar 18
ONT5:15 amOntario
7h 15m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
$662

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls to Ontario 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 March 1, 2026.
Use the filters below to find and compare flights from Idaho Falls to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Mon 3/23

5:59 pm-11:59 pm

1 stop7h 00m

Ontario

Wed 4/1

6:00 am-10:52 pm

1 stop15h 52m

$282

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Sun 3/22

6:55 pm-11:51 pm

1 stop5h 56m

Ontario

Mon 3/23

5:09 pm-10:16 pm

1 stop4h 07m

$330

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Mon 4/6

10:06 pm-12:09 pm

1 stop15h 03m

Ontario

Tue 4/14

6:00 am-4:19 pm

1 stop9h 19m

$335

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Wed 3/18

6:55 pm-11:51 pm

1 stop5h 56m

Ontario

Mon 3/23

5:09 pm-10:16 pm

1 stop4h 07m

$349

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Sun 3/22

6:55 pm-11:51 pm

1 stop5h 56m

Ontario

Tue 3/24

5:09 pm-10:16 pm

1 stop4h 07m

$365

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Mon 5/11

4:06 pm-2:32 pm

1 stop23h 26m

Ontario

Thu 5/14

4:03 pm-10:53 pm

1 stop5h 50m

$367

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Tue 3/24

5:59 pm-11:59 pm

1 stop7h 00m

Ontario

Wed 3/25

6:00 am-10:52 pm

1 stop15h 52m

$383

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Mon 3/23

6:55 pm-11:51 pm

1 stop5h 56m

Ontario

Tue 3/24

5:09 pm-10:16 pm

1 stop4h 07m

$384

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Mon 5/11

4:06 pm-11:48 pm

2 stops8h 42m

Ontario

Thu 5/14

4:03 pm-10:53 pm

1 stop5h 50m

$412

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

Mon 3/23

6:55 pm-11:18 am

2 stops17h 23m

Ontario

Tue 3/24

5:09 pm-10:16 pm

1 stop4h 07m

$413

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Idaho Falls to Ontario

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 Idaho Falls and Ontario?

When to book flights from Idaho Falls to Ontario

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

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

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

Fastest flight time

3h 51m

Direct flights

None
The fastest flight from Idaho Falls to Ontario takes 3h 51m
There are no direct flights from Idaho Falls to Ontario. There are no popular flight routes from Idaho Falls to Ontario.
Search flight deals

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

    There are 715.8 mi between Idaho Falls Fanning Field and Ontario. A reasonable flight in good conditions will take 3h 51m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The necessary travel and health documents for your Ontario 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 Idaho Falls to Ontario?

Best airlines flying from Idaho Falls to Ontario

Compare and see reviews for airlines that fly from Idaho Falls to Ontario with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $143Free CancellationRating
7.4
9,370 reviews
Search United Airlines flights
DeltaPriceFrom $164Free CancellationRating
7.9
8,244 reviews
Search Delta flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Idaho Falls.

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

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

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

momondo helps you find the best flight between Idaho Falls and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Ontario from Idaho Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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