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Cheap flights from Boise to Los Angeles from $79

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 3/25. 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
5:50 pm - 6:57 pm
BOI
-
ONT
2h 07mnonstop
Alaska Airlines Logo
7:59 pm - 10:58 pm
ONT
-
BOI
1h 59mnonstop
$117Alaska Airlines
Sat, Feb 21 - Wed, Feb 25
Delta Logo
10:45 am - 4:02 pm
BOI
-
ONT
6h 17m
1 stop
Delta Logo
5:00 pm - 11:05 pm
ONT
-
BOI
5h 05m
1 stop
$137Delta
Tue, Feb 24 - Tue, Mar 3
Alaska Airlines Logo
6:09 pm - 7:16 pm
BOI
-
ONT
2h 07mnonstop
Alaska Airlines Logo
7:59 pm - 10:58 pm
ONT
-
BOI
1h 59mnonstop
$147Alaska Airlines
Mon, Feb 9 - Wed, Feb 18
Alaska Airlines Logo
5:50 pm - 6:57 pm
BOI
-
ONT
2h 07mnonstop
Alaska Airlines Logo
4:02 pm - 10:40 pm
ONT
-
BOI
5h 38m
1 stop
$167Alaska Airlines
Sat, Feb 21 - Wed, Feb 25
Southwest Logo
12:30 pm - 5:35 pm
BOI
-
ONT
6h 05m
1 stop
Southwest Logo
7:20 am - 2:55 pm
ONT
-
BOI
6h 35m
1 stop
$169Southwest
Mon, Feb 23 - Wed, Feb 25
Southwest Logo
7:05 am - 10:25 am
BOI
-
ONT
4h 20m
1 stop
Southwest Logo
6:15 am - 5:55 pm
ONT
-
BOI
10h 40m
1 stop
$175Southwest
Wed, Mar 4 - Sun, Mar 8
Alaska Airlines Logo
6:09 pm - 7:16 pm
BOI
-
ONT
2h 07mnonstop
Alaska Airlines Logo
7:37 pm - 10:36 pm
ONT
-
BOI
1h 59mnonstop
$177Alaska Airlines
Mon, Feb 9 - Fri, Feb 20
Delta Logo
6:35 pm - 9:44 pm
BOI
-
ONT
4h 09m
1 stop
Delta Logo
3:30 pm - 9:56 pm
ONT
-
BOI
5h 26m
1 stop
$183Delta
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
8:41 am - 12:48 pm
BOI
-
ONT
5h 07m
1 stop
United Airlines Logo
6:10 am - 11:17 am
ONT
-
BOI
4h 07m
1 stop
$187United Airlines
Tue, Feb 17 - Sat, Feb 21
Alaska Airlines Logo
11:35 am - 8:36 pm
BOI
-
ONT
10h 01m
1 stop
Alaska Airlines Logo
7:59 pm - 10:58 pm
ONT
-
BOI
1h 59mnonstop
$191Alaska Airlines
Tue, Feb 10 - Wed, Feb 18

Delta flights from Boise to Ontario

Our best Delta deals on Boise to Ontario flight tickets
Delta
Feb 24
BOI12:59 pmBoise Air Term. Gowen Fld
4h 03m
1 stop
ONT4:02 pmOntario
Feb 28
ONT3:30 pmOntario
5h 26m
1 stop
BOI9:56 pmBoise Air Term. Gowen Fld
$137
Delta
Feb 21
BOI5:15 pmBoise Air Term. Gowen Fld
6h 22m
1 stop
ONT10:37 pmOntario
Feb 25
ONT1:10 pmOntario
3h 39m
1 stop
BOI5:49 pmBoise Air Term. Gowen Fld
$183
Delta
Feb 9
BOI11:20 amBoise Air Term. Gowen Fld
5h 55m
1 stop
ONT4:15 pmOntario
Feb 18
ONT7:30 amOntario
7h 45m
1 stop
BOI4:15 pmBoise Air Term. Gowen Fld
$208

Southwest flights from Boise to Ontario

Our best Southwest deals on Boise to Ontario flight tickets
Southwest
Feb 23
BOI12:30 pmBoise Air Term. Gowen Fld
6h 05m
1 stop
ONT5:35 pmOntario
Feb 25
ONT7:20 amOntario
6h 35m
1 stop
BOI2:55 pmBoise Air Term. Gowen Fld
$169
Southwest
Mar 4
BOI7:05 amBoise Air Term. Gowen Fld
4h 20m
1 stop
ONT10:25 amOntario
Mar 8
ONT6:15 amOntario
10h 40m
1 stop
BOI5:55 pmBoise Air Term. Gowen Fld
$175
Southwest
Feb 18
BOI7:05 amBoise Air Term. Gowen Fld
6h 10m
2 stops
ONT12:15 pmOntario
Feb 25
ONT2:25 pmOntario
7h 45m
1 stop
BOI11:10 pmBoise Air Term. Gowen Fld
$229

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 January 20, 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

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

Tue 2/24

10:45 am-4:02 pm

1 stop6h 17m

Ontario

Tue 3/3

5:00 pm-11:05 pm

1 stop5h 05m

$137

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Mon 2/9

6:09 pm-7:16 pm

Nonstop2h 07m

Ontario

Wed 2/18

7:59 pm-10:58 pm

Nonstop1h 59m

$147

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Sat 2/21

5:50 pm-6:57 pm

Nonstop2h 07m

Ontario

Wed 2/25

4:02 pm-10:40 pm

1 stop5h 38m

$167

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Mon 2/23

12:30 pm-5:35 pm

1 stop6h 05m

Ontario

Wed 2/25

7:20 am-2:55 pm

1 stop6h 35m

$169

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Wed 3/4

7:05 am-10:25 am

1 stop4h 20m

Ontario

Sun 3/8

6:15 am-5:55 pm

1 stop10h 40m

$175

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Mon 2/9

6:09 pm-7:16 pm

Nonstop2h 07m

Ontario

Fri 2/20

7:37 pm-10:36 pm

Nonstop1h 59m

$177

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Sat 2/21

6:35 pm-9:44 pm

1 stop4h 09m

Ontario

Wed 2/25

3:30 pm-9:56 pm

1 stop5h 26m

$183

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Tue 2/17

8:41 am-12:48 pm

1 stop5h 07m

Ontario

Sat 2/21

6:10 am-11:17 am

1 stop4h 07m

$187

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

Tue 2/10

11:35 am-8:36 pm

1 stop10h 01m

Ontario

Wed 2/18

7:59 pm-10:58 pm

Nonstop1h 59m

$191

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, August 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 $235. If you aren’t able to travel during the month of August, then book flights to Ontario from Boise during January instead. Flights to Ontario in January, while not as cheap as those in August, still average around $254.

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 Boise to Ontario for around $450.

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 $321 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 $137 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?

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

How have Boise to Ontario flight prices changed over time?

As of January 2026, prices for Boise to Ontario flights are approximately 8% 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

$188

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 $188. The best round-trip flight deal from Boise to Ontario found on momondo in the last 72 hours is $197.
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
8,080 reviews
Search Delta flights
Alaska AirlinesPriceFrom $137Free CancellationRating
8.0
11,760 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $211Free CancellationRating
7.4
9,183 reviews
Search United Airlines flights
SouthwestPriceFrom $218Free CancellationRating
8.0
4,267 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 7 Alaska Airlines flights for this route in a normal week, average airfare is usually $283 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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