Cheap flights from Ontario (ONT) to Idaho (ID)

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

All the information you need to plan the best ONT to BOI flight in 2022: compare Ontario to Idaho flight prices with the expected peak season, weather and rainfall in Idaho.
What is the cheapest month to fly from Ontario to Idaho?

Flights from Ontario to Idaho lean towards being more expensive in December. Prices are generally better when you fly from Ontario to Idaho in October, with the cheapest ticket starting at $87.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 27 days in advance, which can save you up to 51% on flights from Ontario to Idaho compared to booking the week you need them. Waiting 27 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $197. For sooner than that we have options available in the next 3 days from $255.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Idaho as you normally would.

Cheap flights from Ontario to Idaho in July, August 2022

The best prices found for ONT to Idaho flights for July, August
14 Aug - 18 Aug
$215pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
United Airlines
 
1 STOP
ONT
Ontario
21 Jul - 30 Jul
$217pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
United Airlines
 
1 STOP
ONT
Ontario
4 Aug - 5 Aug
$218pp
ONT
Ontario
Delta
 
1 STOP
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Delta
 
1 STOP
ONT
Ontario

Ontario to Idaho 2022 flight deals

Cheap flights to Idaho from Ontario found for this year
14 Aug - 18 Aug
$215pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
United Airlines
 
1 STOP
ONT
Ontario
21 Jul - 30 Jul
$217pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
United Airlines
 
1 STOP
ONT
Ontario
4 Aug - 5 Aug
$218pp
ONT
Ontario
Delta
 
1 STOP
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Delta
 
1 STOP
ONT
Ontario

Last minute flights from Ontario to Idaho

Late deals on round-trip flights to Idaho from Ontario, departing today and this week
13 Jul - 14 Jul
$360pp
ONT
Ontario
United Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
United Airlines
 
1 STOP
ONT
Ontario
12 Jul - 23 Jul
$361pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
United Airlines
 
1 STOP
ONT
Ontario
13 Jul - 15 Jul
$364pp
ONT
Ontario
Multiple Airlines
 
1 STOP
BOI
Boise Air Term. Gowen Fld
BOI
Boise Air Term. Gowen Fld
Delta
 
1 STOP
ONT
Ontario

One-way flights to Idaho from Ontario

The cheapest one-way flights from Ontario to Idaho
9:04 am - 11:48 am
Frontier
1 Stop
26h 44m
ONT - GEG
Frontier
$114
Kiwi.com
2:00 am - 7:58 am
Alaska Airlines
1 Stop
4h 58m
ONT - BOI
Alaska Airlines
2:13 am - 11:14 am
Delta
1 Stop
8h 01m
ONT - BOI
Delta
$182
Delta

Related info for your journey

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

Flight FAQs

From Ontario to Idaho

What airport do you fly from for flights from Ontario to Idaho?

Located just 3.1 mi from the city center, Ontario (ONT) is the airport most travelers will use when flying to Idaho from Ontario.

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

Some of our airline partners flying from Ontario to Idaho have new flexible policies in place due to COVID-19. Delta, Alaska Airlines, and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Delta with this kind of flexibility.

Can I find flights from Ontario to Idaho for under $300 on Cheapflights?

Yes, there are multiple flights from Ontario to Idaho for under $300. The cheapest flight booked recently is on Multiple Airlines for just $215, but on average you can expect to pay $242.

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

There are currently 20+ open flights from Ontario to Idaho within the next 7 days for less than $400.

How popular is this Ontario to Idaho flight route?

The Ontario to Idaho flight path was viewed by 34 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

The cheapest airlines for a one-way flight from Ontario to Idaho are Delta ($108), Frontier ($111), and American Airlines ($154).

What are the most popular routes from Ontario to Idaho?

The most popular flight routes from Ontario to Idaho are Ontario - Spokane, Ontario - Boise Air Term. Gowen Fld and Ontario - Hailey Sun Valley-Friedman.

What are the most popular airlines that fly from Ontario to Idaho?

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Ontario to Idaho.

What are the cheapest flights from Ontario to Idaho?

Looking at all options, your cheapest flight can be booked for $170. While the most popular route (Ontario - Spokane) can be booked for $227 on average our data indicates $492 when flying from Ontario to Idaho.

COVID Restrictions

View COVID Travel Restrictions for Idaho (ID)

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

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

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

COVID-19 testing requirements
Visitors from Ontario are not required to present a negative COVID-19 PCR test or antigen result upon entering Idaho.

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

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

Returning to Ontario from Idaho

COVID-19 testing requirements
Visitors from Idaho are not required to present a negative COVID-19 PCR test or antigen result upon entering Ontario.

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

Hide COVID Travel Restrictions for Idaho (ID)

Destination points for flights from Ontario to Idaho

Select to see more specific information for flights from Ontario to all places in Idaho.

Destination information for Idaho

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

Airports servicing Ontario

Airports servicing

Idaho Falls (IDA)
Lewiston (LWS)
Pocatello (PIH)
Hailey Sun Valley-Friedman (SUN)
Twin Falls (TWF)

Top 4 airlines flying from Ontario to Idaho

The chart below displays the airlines Cheapflights users traveling from Ontario to Idaho choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$92 $287 No cancel fee 69%
Alaska Airlines
$98 $271 No cancel fee 75%
Delta
$146 $456 No cancel fee N/A
American Airlines
$173 $395 No cancel fee 71%
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