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IDA - ONT

$157 Find cheap flights from Idaho Falls to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho Falls to Ontario departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 6/28
Fri 7/5

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Idaho Falls to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 43,361,115 times on KAYAK, and here is why:

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Cheap flight deals from Idaho Falls to Ontario (IDA-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Idaho Falls to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:06 am - 9:15 amIDA-ONT
28h 09m1 stop
4:28 pm - 11:54 pmONT-IDA
6h 26m1 stop
$325Alaska Airlines
Find Deal
Thu, Sep 19 - Wed, Sep 25
4:20 pm - 9:15 amIDA-ONT
17h 55m1 stop
6:00 am - 3:30 pmONT-IDA
8h 30m1 stop
$335Alaska Airlines
Find Deal
Fri, Sep 20 - Wed, Sep 25
4:20 pm - 11:59 pmIDA-ONT
8h 39m1 stop
4:28 pm - 11:54 pmONT-IDA
6h 26m1 stop
$345Alaska Airlines
Find Deal
Thu, Sep 19 - Wed, Sep 25
6:00 am - 11:59 pmIDA-ONT
18h 59m1 stop
9:09 pm - 11:57 pmONT-IDA
25h 48m1 stop
$372Alaska Airlines
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Thu, Aug 15 - Sun, Aug 18
10:45 am - 10:45 pmIDA-ONT
13h 00m2 stops
5:10 am - 1:28 pmONT-IDA
7h 18m1 stop
$507United Airlines
Find Deal
Thu, Aug 15 - Sun, Aug 18
5:56 pm - 12:45 pmIDA-ONT
19h 49m2 stops
6:25 pm - 9:35 amONT-IDA
14h 10m1 stop
$515United Airlines
Find Deal
Tue, Jun 25 - Sat, Jun 29
7:00 am - 6:30 pmIDA-ONT
12h 30m2 stops
9:41 am - 9:34 pmONT-IDA
10h 53m2 stops
$728American Airlines
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Thu, Sep 19 - Wed, Sep 25
6:14 am - 4:00 pmIDA-ONT
10h 46m2 stops
9:35 am - 9:31 pmONT-IDA
10h 56m2 stops
$858American Airlines
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Thu, Aug 15 - Sun, Aug 18
1:05 pm - 10:29 pmIDA-ONT
10h 24m2 stops
6:00 am - 12:20 pmONT-IDA
5h 20m1 stop
$928Delta
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Sat, Nov 9 - Sun, Nov 17
1:05 pm - 10:29 pmIDA-ONT
10h 24m2 stops
11:29 am - 10:01 pmONT-IDA
9h 32m2 stops
$1,273Delta
Find Deal
Sat, Nov 9 - Sun, Nov 17

Flights from Idaho Falls to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Idaho Falls to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Idaho Falls to Ontario?

The average price of all flights from Idaho Falls to Ontario clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Ontario on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Idaho Falls to Ontario. For your return ticket, we recommend flying on a Tuesday and avoiding Mondays for the best deals.

Which airlines provide the cheapest flights from Idaho Falls to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Idaho Falls to Ontario found by KAYAK users in the last 72 hours was for $325 on Alaska Airlines, followed by United Airlines ($507). One-way flight deals have also been found from as low as $157 on Alaska Airlines and from $174 on Delta.

Good to know

Low season

April

High season

April

Cheapest flight

$157
Best time to beat the crowds with an average 73% drop in price.
Most popular time to fly and prices are also 73% lower on average.
Flight from Idaho Falls to Ontario

When to book flights from Idaho Falls to Ontario

Are your dates flexible? Find out the best times to travel from Idaho Falls to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Idaho Falls to Ontario

  • What is the cheapest flight from Idaho Falls to Ontario?

    In the last 3 days, the lowest price for a flight from Idaho Falls to Ontario was $157 for a one-way ticket and $325 for a round-trip.

  • Do I need a passport to fly between Idaho Falls and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Idaho Falls to Ontario?

    When flying out of Idaho Falls you will be using Idaho Falls Fanning Field. You will be landing at Ontario, also known as Ontario.

  • Which aircraft models fly most regularly from Idaho Falls to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Idaho Falls to Ontario?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Idaho Falls and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Idaho Falls to Ontario, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Idaho Falls to Ontario are Delta and American Airlines. With an average price for the route of $473 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $506 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Idaho Falls to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho Falls to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho Falls to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Idaho Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho Falls to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Idaho Falls with another airline. Booking your flights between Idaho Falls and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho Falls to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Idaho Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Idaho Falls to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Idaho Falls to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Idaho Falls to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10476 reviews
8.0Entertainment
7.9Comfort
8.6Crew
8.2Boarding
7.4Food
Airline reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

8.0 ExcellentLiam, May 2024SLC - SJC
Read more about Delta reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

There were delays on both ends. It made it less than excellent. This plane was great though

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

Book cheap flights from Idaho Falls to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Idaho Falls to Ontario found on KAYAK in the last 72 hours.
8/13Tue
1 stopAlaska Airlines
8h 57mIDA-ONT
$157
6/22Sat
1 stopDelta
5h 30mIDA-ONT
$174
8/14Wed
1 stopAlaska Airlines
14h 25mIDA-ONT
$187
7/4Thu
1 stopUnited Airlines
6h 28mIDA-ONT
$209
8/2Fri
1 stopAlaska Airlines
8h 57mIDA-ONT
$257
6/23Sun
1 stopAlaska Airlines
18h 59mIDA-ONT
$267
7/18Thu
2 stopsUnited Airlines
29h 46mIDA-ONT
$288
7/4Thu
2 stopsAlaska Airlines
17h 40mIDA-ONT
$292
8/13Tue
2 stopsDelta
17h 10mIDA-ONT
$302
6/30Sun
2 stopsAmerican Airlines
13h 05mIDA-ONT
$368

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Last minute flights from Idaho Falls to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Idaho Falls to Ontario that are departing in the next 10 days.
6/3Mon
multi-stopUnited Airlines
7h 43mIDA-ONT
6/5Wed
multi-stopUnited Airlines
6h 39mONT-IDA
$722
5/31Fri
multi-stopAmerican Airlines
7h 53mIDA-ONT
6/3Mon
multi-stopAmerican Airlines
7h 44mONT-IDA
$867
5/31Fri
multi-stopAmerican Airlines
10h 14mIDA-ONT
6/3Mon
multi-stopAmerican Airlines
7h 44mONT-IDA
$872
6/3Mon
multi-stopAlaska Airlines
13h 15mIDA-ONT
6/5Wed
multi-stopAlaska Airlines
6h 36mONT-IDA
$1,017
5/31Fri
multi-stopAmerican Airlines
10h 14mIDA-ONT
6/3Mon
multi-stopAmerican Airlines
11h 04mONT-IDA
$1,225

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Idaho Falls - Ontario Flights

Departure:

Idaho Falls (IDA)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Idaho Falls

Cabin classes: