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

IDA — ONT
Dec 4 — Dec 111

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 57 days before your planned departure. Booking around this time can save you about 81% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $481 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $641.

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

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, January can be a great choice for travel to Ontario. Flights to Ontario from Idaho Falls in January are about $404 on average during January, but can be found for as low as $215.

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

It’s optimal to fly from Idaho Falls to Ontario in the afternoon. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight at noon.

Cheap flights from Idaho Falls to Ontario in November, December 2022

The best prices found for IDA to ONT flights for November, December
Dec 22 - Dec 29
IDA

Idaho Falls Fanning Field

ONT

Ontario

2 stops

11h 32m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

16h 53m
$372

Multiple Airlines

Pick Dates

Deal found 11/29

Dec 23 - Dec 24
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

6h 27m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

4h 54m
$396

Delta

Pick Dates

Deal found 11/27

Dec 12 - Jan 5
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

21h 06m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

14h 30m
$438

United Airlines

Pick Dates

Deal found 11/26

Idaho Falls to Ontario 2022 flight deals

Cheap flights to Ontario from Idaho Falls found for this year
Dec 22 - Dec 29
IDA

Idaho Falls Fanning Field

ONT

Ontario

2 stops

11h 32m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

16h 53m
$372

Multiple Airlines

Pick Dates

Deal found 11/29

Dec 23 - Dec 24
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

6h 27m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

4h 54m
$396

Delta

Pick Dates

Deal found 11/27

Dec 12 - Jan 5
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

21h 06m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

14h 30m
$438

United Airlines

Pick Dates

Deal found 11/26

Cheap United Airlines flights from Idaho Falls to Ontario

Feb 3 - Feb 4
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

7h 05m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

7h 18m
$304

United Airlines

Pick Dates

Deal found 11/28

Dec 12 - Jan 5
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

21h 06m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

14h 30m
$438

United Airlines

Pick Dates

Deal found 11/26

Feb 18 - Feb 21
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

7h 16m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

6h 57m
$476

United Airlines

Pick Dates

Deal found 11/28

Cheap Alaska Airlines flights from Idaho Falls to Ontario

Jan 28 - Feb 12
IDA

Idaho Falls Fanning Field

ONT

Ontario

2 stops

11h 43m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

13h 28m
$379

Alaska Airlines

Pick Dates

Deal found 11/27

Jan 13 - Jan 16
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

26h 09m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

13h 28m
$454

Alaska Airlines

Pick Dates

Deal found 11/28

Jan 13 - Jan 16
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

26h 09m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

13h 28m
$475

Alaska Airlines

Pick Dates

Deal found 11/29

Last minute flights from Idaho Falls to Ontario

Late deals on return flights to Ontario from Idaho Falls, departing today and this week
Dec 4 - Dec 18
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

14h 46m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

7h 12m
$522

United Airlines

Pick Dates

Deal found 11/27

Dec 4 - Dec 18
IDA

Idaho Falls Fanning Field

ONT

Ontario

2 stops

27h 58m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

11h 01m
$539

American Airlines

Pick Dates

Deal found 11/27

Dec 8 - Dec 11
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

6h 19m
ONT

Ontario

IDA

Idaho Falls Fanning Field

1 stop

3h 44m
$600

Delta

Pick Dates

Deal found 11/27

One-way flights to Ontario from Idaho Falls

The cheapest one-way flights from Idaho Falls to Ontario
Feb 6
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

7h 05m
$135

United Airlines

Pick Dates

Deal found 11/28

Dec 21
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

6h 27m
$198

Delta

Pick Dates

Deal found 11/27

Feb 21
IDA

Idaho Falls Fanning Field

ONT

Ontario

1 stop

26h 09m
$208

Alaska Airlines

Pick Dates

Deal found 11/28

Related info for your journey

Useful info, stats and facts about Idaho Falls to Ontario flights.

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

Delta and American Airlines are some of the carriers that may have flexible cancellation 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 $300 on Cheapflights?

Yes, there are multiple flights from Idaho Falls to Ontario for under $300. The cheapest flight booked recently is on Multiple Airlines for just $224, but on average you can expect to pay $393.

Are there last-minute flights available from Idaho Falls to Ontario for under $600?

There are currently 14+ open flights from Idaho Falls to Ontario within the next 7 days for less than $600.

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

Flying on United Airlines is currently your cheapest option to Ontario, with prices starting at $304. Additional round-trip tickets that might be worth considering are offered by Delta and Alaska Airlines, with the lowest prices starting at $320 and $379, respectively. United Airlines is priced at 34% 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 United Airlines. According to our data, you can fly for as low as $135. Users have also found prices from $198 and $208 on Delta and Alaska Airlines, respectively.

What are the cheapest flights from Idaho Falls to Ontario?

The cheapest flight price from Idaho Falls to Ontario is $275. On average you can expect to pay $363. The most popular route, (Idaho Falls Fanning Field - Ontario), can usually be booked for $270.

Alternative routes for Idaho Falls to Ontario

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

Top 2 airlines flying from Idaho Falls to Ontario

The chart below displays the airlines Cheapflights users traveling from Idaho Falls to Ontario choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
American AirlinesCheapest$235Average$386FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$250Average$396FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights