How many flights depart from Idaho to Ontario on average per week?

7 flights are operational weekly from Idaho to Ontario as of January 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

How long does it take to fly to Ontario?

Average flight duration from Idaho to Ontario depends on which airport you fly into and out of. Flying from Boise to Los Angeles is 2h 15m on average, while flying from Hailey to Los Angeles is 2h 34m on average. Los Angeles is the most popular airport in Ontario.

What airlines fly to Ontario?

Alaska Airlines, Delta and Allegiant Air are the top three most popular airlines that fly to Ontario from Idaho according to our data. Alaska Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Idaho to Ontario?

Delta, Frontier, and Alaska Airlines are the most popular carriers operating from Idaho to Ontario

When did momondo last update prices for flights from Idaho to Ontario Airport?

Prices for flights from Idaho to Ontario Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Idaho to Ontario Airport?

As of January 2026, there are 4 operators available to choose from for flights from Idaho to Ontario Airport.

How old do you have to be to fly from Idaho 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 to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$69 Cheap Flights from Idaho to Ontario in 2026

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Find the cheapest flights from Idaho to Los Angeles

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:50 pm - 6:57 pm

BOI

ONT

2h 07mnonstop

7:59 pm - 10:58 pm

ONT

BOI

1h 59mnonstop

$117Alaska Airlines

Sat, Feb 21 - Wed, Feb 25

6:09 pm - 7:16 pm

BOI

ONT

2h 07mnonstop

7:56 pm - 10:57 pm

ONT

BOI

2h 01mnonstop

$137Alaska Airlines

Wed, Feb 4 - Wed, Feb 11

5:50 pm - 6:57 pm

BOI

ONT

2h 07mnonstop

7:37 pm - 10:36 pm

ONT

BOI

1h 59mnonstop

$141Alaska Airlines

Sat, Feb 28 - Mon, Mar 2

3:00 pm - 9:05 pm

BOI

ONT

7h 05m1 stop

5:50 am - 11:05 am

ONT

BOI

4h 15m1 stop

$157Southwest

Wed, Jan 28 - Sat, Feb 7

12:31 pm - 7:09 pm

BOI

ONT

7h 38m1 stop

5:02 pm - 11:38 pm

ONT

BOI

5h 36m1 stop

$159American Airlines

Tue, Mar 10 - Tue, Mar 17

12:22 pm - 11:59 pm

GEG

ONT

11h 37m1 stop

6:10 am - 2:16 pm

ONT

GEG

8h 06m1 stop

$167Frontier

Thu, Feb 19 - Sun, Feb 22

3:40 pm - 10:44 pm

GEG

ONT

7h 04m1 stop

1:11 pm - 10:52 pm

ONT

GEG

9h 41m2 stops

$193Delta

Sat, Feb 7 - Tue, Feb 10

12:22 pm - 11:59 pm

GEG

ONT

11h 37m1 stop

6:10 am - 2:16 pm

ONT

GEG

8h 06m1 stop

$195Frontier

Thu, Feb 19 - Sun, Feb 22

6:33 am - 12:03 pm

GEG

ONT

5h 30m1 stop

9:59 am - 2:58 pm

ONT

GEG

4h 59m1 stop

$199American Airlines

Tue, Feb 3 - Tue, Feb 10

12:58 pm - 4:15 pm

JAC

ONT

4h 17m1 stop

1:11 pm - 7:06 pm

ONT

JAC

4h 55m1 stop

$219Delta

Thu, Jan 22 - Sun, Jan 25

Southwest flights from Idaho to Ontario

Our best Southwest deals on Idaho to Ontario flight tickets

Southwest

Jan 28

BOI3:00 pmBoise Air Term. Gowen Fld

7h 05m

1 stop

ONT9:05 pmOntario

Feb 7

ONT5:50 amOntario

4h 15m

1 stop

BOI11:05 amBoise Air Term. Gowen Fld

$157

Southwest

Feb 26

BOI6:15 pmBoise Air Term. Gowen Fld

5h 05m

1 stop

ONT10:20 pmOntario

Mar 1

ONT6:45 amOntario

5h 15m

1 stop

BOI1:00 pmBoise Air Term. Gowen Fld

$169

Southwest

Mar 6

BOI12:25 pmBoise Air Term. Gowen Fld

9h 50m

1 stop

ONT9:15 pmOntario

Mar 10

ONT4:35 pmOntario

6h 15m

1 stop

BOI11:50 pmBoise Air Term. Gowen Fld

$175

American Airlines flights from Idaho to Ontario

Our best American Airlines deals on Idaho to Ontario flight tickets

American Airlines

Mar 10

BOI12:31 pmBoise Air Term. Gowen Fld

7h 38m

1 stop

ONT7:09 pmOntario

Mar 17

ONT5:02 pmOntario

5h 36m

1 stop

BOI11:38 pmBoise Air Term. Gowen Fld

$159

American Airlines

Feb 3

GEG6:33 amSpokane

5h 30m

1 stop

ONT12:03 pmOntario

Feb 10

ONT9:59 amOntario

4h 59m

1 stop

GEG2:58 pmSpokane

$199

American Airlines

Jan 27

GEG6:33 amSpokane

5h 30m

1 stop

ONT12:03 pmOntario

Feb 3

ONT9:59 amOntario

4h 59m

1 stop

GEG2:58 pmSpokane

$254

Fly from

Fly to

Route

Depart

Return

Price

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Sat 2/21

5:50 pm-6:57 pm

Nonstop2h 07m

Ontario

Wed 2/25

7:59 pm-10:58 pm

Nonstop1h 59m

$117

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Wed 2/4

6:09 pm-7:16 pm

Nonstop2h 07m

Ontario

Wed 2/11

7:56 pm-10:57 pm

Nonstop2h 01m

$137

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Sat 2/28

5:50 pm-6:57 pm

Nonstop2h 07m

Ontario

Mon 3/2

7:37 pm-10:36 pm

Nonstop1h 59m

$141

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Wed 1/28

3:00 pm-9:05 pm

1 stop7h 05m

Ontario

Sat 2/7

5:50 am-11:05 am

1 stop4h 15m

$157

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Tue 3/10

12:31 pm-7:09 pm

1 stop7h 38m

Ontario

Tue 3/17

5:02 pm-11:38 pm

1 stop5h 36m

$159

SpokaneOntario

GEG - ONT

GEGONT

Spokane

Thu 2/19

12:22 pm-11:59 pm

1 stop11h 37m

Ontario

Sun 2/22

6:10 am-2:16 pm

1 stop8h 06m

$167

SpokaneOntario

GEG - ONT

GEGONT

Spokane

Sat 2/7

3:40 pm-10:44 pm

1 stop7h 04m

Ontario

Tue 2/10

1:11 pm-10:52 pm

2 stops9h 41m

$193

SpokaneOntario

GEG - ONT

GEGONT

Spokane

Thu 2/19

12:22 pm-11:59 pm

1 stop11h 37m

Ontario

Sun 2/22

6:10 am-2:16 pm

1 stop8h 06m

$195

SpokaneOntario

GEG - ONT

GEGONT

Spokane

Tue 2/3

6:33 am-12:03 pm

1 stop5h 30m

Ontario

Tue 2/10

9:59 am-2:58 pm

1 stop4h 59m

$199

JacksonOntario

JAC - ONT

JACONT

Jackson Hole

Thu 1/22

12:58 pm-4:15 pm

1 stop4h 17m

Ontario

Sun 1/25

1:11 pm-7:06 pm

1 stop4h 55m

$219

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho 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

Prices

Airlines

Other information

What is the cheapest month to fly to Ontario?

In general, January is the cheapest month to fly from Idaho to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $222. If you aren’t able to travel during the month of January, then book flights to Ontario from Idaho during August instead. Flights to Ontario in August, while not as cheap as those in January, still average around $235.

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 Thursday when prices can be found for as low as $117. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Idaho to Ontario for around $427.

What is the cheapest Idaho to Ontario flight route?

Fly from Boise Air Term. Gowen Fld to Ontario for the best Idaho - Ontario flight prices

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

You are more likely to see cheaper flights to Ontario from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $318 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Idaho for as low as $137 on momondo.

What cabin class options are available on Idaho to Ontario flights?

There is only 1 cabin class available to choose from on Idaho to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to Ontario flights?

You could potentially save up to 36% on your flight if you consider stops on a Idaho to Ontario flight.

Cheap Idaho to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Ontario

Best Price Found	$188
Fastest flight time	2h 03m
Direct flights	Every day
Airports in Ontario	1 airport

The best one-way flight to Ontario from Idaho in the past 72 hours is $188. The best round-trip flight deal from Idaho to Ontario found on momondo in the last 72 hours is $117.

The fastest flight from Idaho to Ontario takes 2h 03m

Direct flights go from Idaho to Ontario every day.

There is 1 airport in Ontario. From Idaho there are direct flights to Ontario (ONT).

Search flight deals

When did momondo last update prices for flights from Idaho to Ontario Airport?
Prices for flights from Idaho to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Idaho to Ontario Airport?
As of January 2026, there are 4 operators available to choose from for flights from Idaho to Ontario Airport.
How old do you have to be to fly from Idaho 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 to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Idaho to Ontario?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Idaho to Ontario is Embraer 175 (Enhanced Winglets) (31.43% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (22.86%), Embraer 175 (17.14%), and Airbus A320-100/200 (17.14%).

Best airlines flying from Idaho to Ontario

Compare and see reviews for airlines that fly from Idaho to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Alaska Airlines	PriceFrom $137	Free Cancellation	Rating 8.0 11,672 reviews	Search Alaska Airlines flights
Delta	PriceFrom $158	Free Cancellation	Rating 7.9 8,032 reviews	Search Delta flights
United Airlines	PriceFrom $211	Free Cancellation	Rating 7.4 9,142 reviews	Search United Airlines flights
Southwest	PriceFrom $218	Free Cancellation	Rating 8.0 4,250 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Idaho to Ontario for you.

Can I find flights from Idaho to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from Idaho which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Idaho to Ontario?

Once all potential Idaho to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Idaho to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Idaho 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.