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Cheap flights from Boise to Los Angeles from $76

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Los Angeles departing on 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boise to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
4:40 pm - 5:45 pm
BOI
-
ONT
2h 05mnonstop
Alaska Airlines Logo
6:25 pm - 9:26 pm
ONT
-
BOI
2h 01mnonstop
$117Alaska Airlines
Tue, Mar 31 - Tue, Apr 7
Delta Logo
8:00 am - 12:14 pm
BOI
-
ONT
5h 14m
1 stop
Delta Logo
2:20 pm - 10:24 pm
ONT
-
BOI
7h 04m
1 stop
$137Delta
Sat, Apr 18 - Tue, Apr 21
Alaska Airlines Logo
4:40 pm - 5:45 pm
BOI
-
ONT
2h 05mnonstop
Alaska Airlines Logo
6:25 pm - 9:26 pm
ONT
-
BOI
2h 01mnonstop
$147Alaska Airlines
Tue, Mar 31 - Tue, Apr 7
Southwest Logo
11:00 am - 4:45 pm
BOI
-
ONT
6h 45m
1 stop
Southwest Logo
5:20 pm - 11:20 pm
ONT
-
BOI
5h 00m
1 stop
$151Southwest
Sat, Apr 18 - Tue, Apr 21
Southwest Logo
5:15 pm - 10:10 pm
BOI
-
ONT
5h 55m
1 stop
Southwest Logo
10:30 am - 7:00 pm
ONT
-
BOI
7h 30m
2 stops
$156Southwest
Wed, Apr 15 - Wed, Apr 22
Southwest Logo
1:25 pm - 5:50 pm
BOI
-
ONT
5h 25m
1 stop
Southwest Logo
3:45 pm - 11:30 pm
ONT
-
BOI
6h 45m
1 stop
$157Southwest
Wed, Apr 1 - Wed, Apr 8
Alaska Airlines Logo
6:04 pm - 11:59 pm
BOI
-
ONT
6h 55m
1 stop
Alaska Airlines Logo
6:25 pm - 9:26 pm
ONT
-
BOI
2h 01mnonstop
$160Alaska Airlines
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
5:00 pm - 10:10 pm
BOI
-
ONT
6h 10m
2 stops
Southwest Logo
3:45 pm - 12:25 am
ONT
-
BOI
7h 40m
2 stops
$161Southwest
Wed, Apr 15 - Wed, Apr 22
Southwest Logo
6:40 am - 12:00 pm
BOI
-
ONT
6h 20m
1 stop
Southwest Logo
3:45 pm - 12:25 am
ONT
-
BOI
7h 40m
2 stops
$162Southwest
Wed, Apr 1 - Wed, Apr 8
Alaska Airlines Logo
4:40 pm - 5:45 pm
BOI
-
ONT
2h 05mnonstop
Alaska Airlines Logo
6:25 pm - 9:26 pm
ONT
-
BOI
2h 01mnonstop
$167Alaska Airlines
Tue, Mar 31 - Sat, Apr 4

Alaska Airlines flights from Boise to Ontario

Our best Alaska Airlines deals on Boise to Ontario flight tickets
Alaska Airlines
Mar 31
BOI4:40 pmBoise Air Term. Gowen Fld
2h 05m
ONT5:45 pmOntario
Apr 7
ONT6:25 pmOntario
2h 01m
BOI9:26 pmBoise Air Term. Gowen Fld
$117
Alaska Airlines
Mar 31
BOI4:40 pmBoise Air Term. Gowen Fld
2h 05m
ONT5:45 pmOntario
Apr 7
ONT6:25 pmOntario
2h 01m
BOI9:26 pmBoise Air Term. Gowen Fld
$147
Alaska Airlines
Apr 14
BOI6:04 pmBoise Air Term. Gowen Fld
6h 55m
1 stop
ONT11:59 pmOntario
Apr 21
ONT6:25 pmOntario
2h 01m
BOI9:26 pmBoise Air Term. Gowen Fld
$160

Delta flights from Boise to Ontario

Our best Delta deals on Boise to Ontario flight tickets
Delta
Apr 18
BOI8:00 amBoise Air Term. Gowen Fld
5h 14m
1 stop
ONT12:14 pmOntario
Apr 21
ONT2:20 pmOntario
7h 04m
1 stop
BOI10:24 pmBoise Air Term. Gowen Fld
$137
Delta
Apr 1
BOI6:15 pmBoise Air Term. Gowen Fld
6h 36m
1 stop
ONT11:51 pmOntario
Apr 8
ONT6:00 amOntario
6h 05m
1 stop
BOI1:05 pmBoise Air Term. Gowen Fld
$207
Delta
Mar 26
BOI5:52 amBoise Air Term. Gowen Fld
6h 26m
1 stop
ONT11:18 amOntario
Apr 1
ONT5:53 pmOntario
4h 53m
1 stop
BOI11:46 pmBoise Air Term. Gowen Fld
$212

momondo Fare Finder

 
Customize your flight search to find flights from Boise to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 4, 2026.
Use the filters below to find and compare flights from Boise to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Tue 3/31

4:40 pm-5:45 pm

Nonstop2h 05m

Ontario

Tue 4/7

6:25 pm-9:26 pm

Nonstop2h 01m

$117

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Sat 4/18

8:00 am-12:14 pm

1 stop5h 14m

Ontario

Tue 4/21

2:20 pm-10:24 pm

1 stop7h 04m

$137

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Tue 3/31

4:40 pm-5:45 pm

Nonstop2h 05m

Ontario

Tue 4/7

6:25 pm-9:26 pm

Nonstop2h 01m

$147

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Sat 4/18

11:00 am-4:45 pm

1 stop6h 45m

Ontario

Tue 4/21

5:20 pm-11:20 pm

1 stop5h 00m

$151

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Wed 4/15

5:15 pm-10:10 pm

1 stop5h 55m

Ontario

Wed 4/22

10:30 am-7:00 pm

2 stops7h 30m

$156

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Wed 4/1

1:25 pm-5:50 pm

1 stop5h 25m

Ontario

Wed 4/8

3:45 pm-11:30 pm

1 stop6h 45m

$157

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Tue 4/14

6:04 pm-11:59 pm

1 stop6h 55m

Ontario

Tue 4/21

6:25 pm-9:26 pm

Nonstop2h 01m

$160

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Wed 4/15

5:00 pm-10:10 pm

2 stops6h 10m

Ontario

Wed 4/22

3:45 pm-12:25 am

2 stops7h 40m

$161

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Wed 4/1

6:40 am-12:00 pm

1 stop6h 20m

Ontario

Wed 4/8

3:45 pm-12:25 am

2 stops7h 40m

$162

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Tue 3/31

4:40 pm-5:45 pm

Nonstop2h 05m

Ontario

Sat 4/4

6:25 pm-9:26 pm

Nonstop2h 01m

$167

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from Boise 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

What is the cheapest month to fly to Ontario?

In general, January is the cheapest month to fly from Boise to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $232. If you aren’t able to travel during the month of January, then book flights to Ontario from Boise 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 Saturday when prices can be found for as low as $147. 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 Boise to Ontario for around $427.

What is the cheapest Boise Air Term. Gowen Fld to Ontario flight route?

Fly from Boise Air Term. Gowen Fld to Ontario for the best Boise Air Term. Gowen Fld - 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 Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $320 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Boise for as low as $148 on momondo.

What cabin class options are available on Boise Air Term. Gowen Fld to Ontario flights?

There is only 1 cabin class available to choose from on Boise Air Term. Gowen Fld 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 Boise to Ontario flights?

No. A direct flight is the cheapest option for a flight between Boise to Ontario.

How have Boise to Ontario flight prices changed over time?

As of March 2026, prices for Boise to Ontario flights are approximately 59% more expensive when compared to flights at the same time last year.

When to book flights from Boise to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boise to Ontario (BOI to ONT) flight deals and tips

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

Best Price Found

$123

Fastest flight time

2h 03m

Direct flights

Every day

Airports in Ontario

1 airport
The best one-way flight to Ontario from Boise in the past 72 hours is $123. The best round-trip flight deal from Boise to Ontario found on momondo in the last 72 hours is $147.
The fastest flight from Boise to Ontario takes 2h 03m
Direct flights go from Boise to Ontario every day.
There is 1 airport in Ontario. From Boise there are direct flights to Ontario (ONT).
Search flight deals

  • How far is Boise Air Term. Gowen Fld to Ontario by plane?

    Ontario is 663.9 mi away from Boise Air Term. Gowen Fld. Flights usually cover this in 2h 03m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Ontario Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Ontario Airport are updated daily.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Ontario Airport?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport 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 Boise Air Term. Gowen Fld Airport to Ontario Airport.

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

    The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Boise to Ontario?

  • What is the most popular airline from Boise to Ontario?

Best airlines flying from Boise to Ontario

Compare and see reviews for airlines that fly from Boise to Ontario with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $136Free CancellationRating
7.9
8,246 reviews
Search Delta flights
Alaska AirlinesPriceFrom $137Free CancellationRating
8.0
11,982 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $211Free CancellationRating
7.4
9,383 reviews
Search United Airlines flights
SouthwestPriceFrom $224Free CancellationRating
8.0
4,304 reviews
Search Southwest flights

  • Alaska Airlines Flights From Boise to Ontario

    Alaska Airlines flight deals from Boise to Ontario start from $137 round-trip. Over the 5 Alaska Airlines flights for this route in a normal week, average airfare is usually $260 round-trip - but some users have found much cheaper deals with momondo.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Boise.

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

Yes. All flights to Ontario from Boise on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boise to Ontario.

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

Price alerts on flights to Ontario from Boise 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.

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