Cheap flights from Idaho Falls to Ontario (IDA - ONT)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
Idaho Falls (IDA) to Ontario (ONT)

All the information you need to plan the best IDA to ONT flight in 2021: compare Idaho Falls to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.
What is the cheapest day to fly round-trip from Idaho Falls to Ontario?

Flights from Idaho Falls to Ontario are found to be more expensive on Thursday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Ontario.

How far in advance should I book a flight from Idaho Falls to Ontario?

To save on the cost of your flight from Idaho Falls to Ontario, book at least 32 days before your planned departure. Booking around this time can save you about 27% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $415 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $470.

When is the cheapest time to fly from Idaho Falls to Ontario (IDA - ONT)?

When flying from Idaho Falls to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest month to fly from Idaho Falls to Ontario?

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, June can be a great choice for travel to Ontario. Flights to Ontario from Idaho Falls in June are about $401 on average during June, but can be found for as low as $148.

Cheap flights from Idaho Falls to Ontario in November, December 2021

The best prices found for IDA to ONT flights for November, December
6 Dec - 9 Dec
$327pp
IDA
Idaho Falls Fanning Field
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
 
1 STOP
IDA
Idaho Falls Fanning Field
17 Dec - 6 Jan
$329pp
IDA
Idaho Falls Fanning Field
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Multiple Airlines
 
1 STOP
IDA
Idaho Falls Fanning Field
7 Dec - 12 Dec
$331pp
IDA
Idaho Falls Fanning Field
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
   
2 STOPS
IDA
Idaho Falls Fanning Field

Idaho Falls Fanning Field to Ontario 2022 flight deals

Cheap flights to Ontario from Idaho Falls found for next year
6 Dec - 9 Dec
$327pp
IDA
Idaho Falls Fanning Field
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
 
1 STOP
IDA
Idaho Falls Fanning Field
17 Dec - 6 Jan
$329pp
IDA
Idaho Falls Fanning Field
Multiple Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
Multiple Airlines
 
1 STOP
IDA
Idaho Falls Fanning Field
7 Dec - 12 Dec
$331pp
IDA
Idaho Falls Fanning Field
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
   
2 STOPS
IDA
Idaho Falls Fanning Field

Last minute flights from Idaho Falls to Ontario

Late deals on round-trip flights to Ontario from Idaho Falls, departing today and this week
6 Dec - 9 Dec
$327pp
IDA
Idaho Falls Fanning Field
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
 
1 STOP
IDA
Idaho Falls Fanning Field
7 Dec - 12 Dec
$331pp
IDA
Idaho Falls Fanning Field
American Airlines
 
1 STOP
ONT
Ontario
ONT
Ontario
American Airlines
   
2 STOPS
IDA
Idaho Falls Fanning Field
7 Dec - 12 Dec
$335pp
IDA
Idaho Falls Fanning Field
American Airlines
   
2 STOPS
ONT
Ontario
ONT
Ontario
American Airlines
   
2 STOPS
IDA
Idaho Falls Fanning Field

One-way flights to Ontario from Idaho Falls

The cheapest one-way flights from Idaho Falls to Ontario
10:23 am - 2:12 am
Multiple Airlines
3 Stops
40h 49m
IDA - ONT
Multiple Airlines
$428
Kiwi.com
4:15 am - 5:15 am
Alaska Airlines
3 Stops
26h 00m
IDA - ONT
Alaska Airlines
9:45 am - 5:02 am
United Airlines
2 Stops
20h 17m
IDA - ONT
United Airlines
$779
United

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Idaho Falls</span> to <span class="emphasized">Ontario</span> flights.

Flight FAQs

From Idaho Falls to Ontario

Which airlines flying from Idaho Falls Fanning Field to Ontario have flexible changes due to COVID-19?

Delta is one of the carriers that may have flexible change policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Idaho Falls to Ontario for under $200 on Cheapflights?

Yes, there are multiple flights from Idaho Falls to Ontario for under $200. The cheapest flight booked recently is on American Airlines for just $195, but on average you can expect to pay $236.

Are there last-minute flights available from Idaho Falls to Ontario for under $400?

There are currently 4+ open flights from Idaho Falls to Ontario within the next 7 days for less than $400.

What are the cheapest airlines flying from Idaho Falls to Ontario round-trip?

Flying on American Airlines is currently your cheapest option to Ontario, with prices starting at $195. Additional round-trip tickets that might be worth considering are offered by Delta and Alaska Airlines, with the lowest prices starting at $221 and $227, respectively. American Airlines is priced at 48% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Idaho Falls to Ontario one-way?

For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $123. Users have also found prices from $143 and $464 on American Airlines and United Airlines, respectively.

What are the cheapest flights from Idaho Falls to Ontario?

The cheapest flight price from Idaho Falls to Ontario is $185. On average you can expect to pay $276. The most popular route, (Idaho Falls Fanning Field - Ontario), can usually be booked for $234.

COVID Restrictions

View COVID Travel Restrictions for Ontario, CA

Do I need a COVID test to fly to Ontario from Idaho Falls?

Information is based on travel restrictions for travel to Ontario within the United States

Most visitors from Idaho Falls Fanning Field need to provide a negative COVID-19 test result and/or quarantine to enter Ontario.

COVID-19 testing requirements
Visitors from Idaho Falls Fanning Field must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.

Quarantine requirements
Visitors from Idaho Falls Fanning Field are not required to quarantine after entering Ontario.

Do I need a test to fly back to Idaho Falls from Ontario?

Returning to Idaho Falls Fanning Field from Ontario

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Idaho Falls Fanning Field.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Idaho Falls Fanning Field.

Hide COVID Travel Restrictions for Ontario, CA

Alternative routes for Idaho Falls to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Ontario

Things to know before you go - useful duration and weather info for your trip from Idaho Falls to Ontario.

Airports servicing Idaho Falls

Airports servicing Ontario

Home North America USA California Ontario Cheap flights from Idaho Falls to Ontario