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Cheap flights from Idaho Falls to Los Angeles from $151

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 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.
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0 bags

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Find the cheapest flights from Idaho Falls to Los Angeles

Cheap round-trip flights

Alaska Airlines Logo
6:13 am - 10:44 amIDA-ONT
5h 31m1 stop
Alaska Airlines Logo
3:06 pm - 10:39 pmONT-IDA
6h 33m1 stop
$279Alaska Airlines
Find Deal
mié., sep. 17 - sáb., sep. 20
Alaska Airlines Logo
6:13 am - 10:44 amIDA-ONT
5h 31m1 stop
Alaska Airlines Logo
3:06 pm - 10:39 pmONT-IDA
6h 33m1 stop
$289Alaska Airlines
Find Deal
jue., sep. 25 - sáb., sep. 27
Delta Logo
6:51 pm - 11:42 pmIDA-ONT
5h 51m1 stop
Delta Logo
4:40 pm - 10:25 pmONT-IDA
4h 45m1 stop
$290Delta
Find Deal
vie., sep. 19 - mar., sep. 30
Delta Logo
6:51 pm - 11:42 pmIDA-ONT
5h 51m1 stop
Delta Logo
11:50 am - 10:25 pmONT-IDA
9h 35m2 stops
$296Delta
Find Deal
jue., sep. 18 - mié., sep. 24
Hawaiian Airlines Logo
4:00 pm - 10:37 pmIDA-ONT
7h 37m1 stop
Hawaiian Airlines Logo
6:00 am - 3:23 pmONT-IDA
8h 23m1 stop
$376Hawaiian Airlines
Find Deal
vie., dic. 5 - dom., dic. 7
Hawaiian Airlines Logo
6:13 am - 10:44 amIDA-ONT
5h 31m1 stop
Hawaiian Airlines Logo
3:04 pm - 10:39 pmONT-IDA
6h 35m1 stop
$399Hawaiian Airlines
Find Deal
lun., ago. 25 - mar., ago. 26
United Airlines Logo
4:15 pm - 8:43 pmIDA-ONT
5h 28m1 stop
United Airlines Logo
1:15 pm - 9:48 amONT-IDA
19h 33m1 stop
$418United Airlines
Find Deal
lun., sep. 22 - mar., sep. 30
United Airlines Logo
4:15 pm - 8:43 pmIDA-ONT
5h 28m1 stop
United Airlines Logo
5:10 am - 1:30 pmONT-IDA
7h 20m1 stop
$427United Airlines
Find Deal
vie., ago. 29 - mar., sep. 2
American Airlines Logo
6:44 am - 1:19 pmIDA-ONT
7h 35m1 stop
American Airlines Logo
12:45 pm - 9:23 pmONT-IDA
7h 38m1 stop
$499American Airlines
Find Deal
jue., sep. 18 - dom., sep. 21
American Airlines Logo
6:44 am - 1:19 pmIDA-ONT
7h 35m1 stop
American Airlines Logo
7:16 pm - 12:59 pmONT-IDA
16h 43m2 stops
$574American Airlines
Find Deal
jue., sep. 18 - dom., sep. 21

Delta flights from Idaho Falls to Ontario

Our best Delta deals on Idaho Falls to Ontario flight tickets
Delta
Sep 19
IDA6:51 pmIdaho Falls Fanning Field
5h 51m
1 stop
ONT11:42 pmOntario
Sep 30
ONT4:40 pmOntario
4h 45m
1 stop
IDA10:25 pmIdaho Falls Fanning Field
$290
Find similar
Delta
Sep 18
IDA6:51 pmIdaho Falls Fanning Field
5h 51m
1 stop
ONT11:42 pmOntario
Sep 24
ONT11:50 amOntario
9h 35m
2 stops
IDA10:25 pmIdaho Falls Fanning Field
$296
Find similar
Delta
Sep 20
IDA6:51 pmIdaho Falls Fanning Field
4h 50m
1 stop
ONT10:41 pmOntario
Sep 27
ONT1:15 pmOntario
3h 56m
1 stop
IDA6:11 pmIdaho Falls Fanning Field
$297
Find similar

Hawaiian Airlines flights from Idaho Falls to Ontario

Our best Hawaiian Airlines deals on Idaho Falls to Ontario flight tickets
Hawaiian Airlines
Dec 5
IDA4:00 pmIdaho Falls Fanning Field
7h 37m
1 stop
ONT10:37 pmOntario
Dec 7
ONT6:00 amOntario
8h 23m
1 stop
IDA3:23 pmIdaho Falls Fanning Field
$376
Find similar
Hawaiian Airlines
Aug 25
IDA6:13 amIdaho Falls Fanning Field
5h 31m
1 stop
ONT10:44 amOntario
Aug 26
ONT3:04 pmOntario
6h 35m
1 stop
IDA10:39 pmIdaho Falls Fanning Field
$399
Find similar
Hawaiian Airlines
Sep 18
IDA6:13 amIdaho Falls Fanning Field
5h 31m
1 stop
ONT10:44 amOntario
Sep 21
ONT3:06 pmOntario
6h 33m
1 stop
IDA10:39 pmIdaho Falls Fanning Field
$413
Find similar

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 julio 31, 2025.
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

mié. 9/17

6:13 am-10:44 am

1 stop5h 31m

Ontario

sáb. 9/20

3:06 pm-10:39 pm

1 stop6h 33m

$279

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

jue. 9/25

6:13 am-10:44 am

1 stop5h 31m

Ontario

sáb. 9/27

3:06 pm-10:39 pm

1 stop6h 33m

$289

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

vie. 9/19

6:51 pm-11:42 pm

1 stop5h 51m

Ontario

mar. 9/30

4:40 pm-10:25 pm

1 stop4h 45m

$290

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

jue. 9/18

6:51 pm-11:42 pm

1 stop5h 51m

Ontario

mié. 9/24

11:50 am-10:25 pm

2 stops9h 35m

$296

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

vie. 12/5

4:00 pm-10:37 pm

1 stop7h 37m

Ontario

dom. 12/7

6:00 am-3:23 pm

1 stop8h 23m

$376

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

lun. 8/25

6:13 am-10:44 am

1 stop5h 31m

Ontario

mar. 8/26

3:04 pm-10:39 pm

1 stop6h 35m

$399

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

lun. 9/22

4:15 pm-8:43 pm

1 stop5h 28m

Ontario

mar. 9/30

1:15 pm-9:48 am

1 stop19h 33m

$418

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

vie. 8/29

4:15 pm-8:43 pm

1 stop5h 28m

Ontario

mar. 9/2

5:10 am-1:30 pm

1 stop7h 20m

$427

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

jue. 9/18

6:44 am-1:19 pm

1 stop7h 35m

Ontario

dom. 9/21

12:45 pm-9:23 pm

1 stop7h 38m

$499

Idaho FallsOntario

IDA - ONT

IDAONT

Idaho Falls Fanning Field

jue. 9/18

6:44 am-1:19 pm

1 stop7h 35m

Ontario

dom. 9/21

7:16 pm-12:59 pm

2 stops16h 43m

$574

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 cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $183. This is often the case because there is less demand to fly during this day of the week. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Idaho Falls to Ontario for around $451.

What is the cheapest time of day to depart on your flight to Ontario?

In the morning is the cheapest time of day to fly from Idaho Falls to Ontario when you can find flight prices for as low as $136. Flying to Ontario in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $679 on average. Flights to Ontario from Idaho Falls at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Best Price Found

$151

Fastest flight time

3h 55m

Direct flights

None

Airports in Ontario

1 airport
The best one-way flight to Ontario from Idaho Falls in the past 72 hours is $151. The best round-trip flight deal from Idaho Falls to Ontario found on momondo in the last 72 hours is $279.
The fastest flight from Idaho Falls to Ontario takes 3h 55m
There are no direct flights from Idaho Falls to Ontario. Popular non-direct route for this connection is Idaho Falls Fanning Field Airport - Ontario Airport.
There is 1 airport near Ontario: Ontario (ONT)
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 55m.

  • 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
DeltaPriceFrom $164Free CancellationRating
8.0
7,981 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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