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Cheap flights from Boise to Los Angeles from $82

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 9/20. 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

Alaska Airlines Logo
4:30 pm - 5:42 pmBOI-ONT
2h 12mnonstop
Alaska Airlines Logo
6:22 pm - 9:39 pmONT-BOI
2h 17mnonstop
$147Alaska Airlines
Find Deal
jue., ene. 22 - sáb., ene. 31
Logo
2:16 pm - 8:56 pmBOI-ONT
7h 40m1 stop
Logo
10:28 pm - 1:21 pmONT-BOI
13h 53m1 stop
$159
Find Deal
jue., sep. 18 - vie., sep. 19
Delta Logo
5:00 pm - 10:38 pmBOI-ONT
6h 38m1 stop
Delta Logo
6:45 am - 1:07 pmONT-BOI
5h 22m1 stop
$167Delta
Find Deal
jue., ene. 22 - mié., ene. 28
Alaska Airlines Logo
1:30 pm - 7:47 pmBOI-ONT
7h 17m1 stop
Alaska Airlines Logo
4:05 pm - 10:20 pmONT-BOI
5h 15m1 stop
$176Alaska Airlines
Find Deal
jue., ene. 22 - sáb., ene. 31
Delta Logo
5:45 am - 11:09 amBOI-ONT
6h 24m1 stop
Delta Logo
5:40 pm - 11:57 pmONT-BOI
5h 17m1 stop
$217Delta
Find Deal
mié., sep. 24 - mié., oct. 1
Southwest Logo
5:00 am - 9:10 amBOI-ONT
5h 10m1 stop
Southwest Logo
3:55 pm - 8:40 pmONT-BOI
3h 45m1 stop
$258Southwest
Find Deal
vie., dic. 12 - lun., dic. 15
Frontier Logo
12:22 pm - 7:54 pmBOI-ONT
8h 32m1 stop
Frontier Logo
6:53 am - 11:43 amONT-BOI
27h 50m1 stop
$268Frontier
Find Deal
jue., oct. 2 - mié., oct. 8
Frontier Logo
12:22 pm - 7:53 amBOI-ONT
20h 31m1 stop
Frontier Logo
8:59 pm - 11:37 amONT-BOI
13h 38m1 stop
$281Frontier
Find Deal
dom., sep. 14 - jue., sep. 18
Southwest Logo
12:40 pm - 6:00 pmBOI-ONT
6h 20m2 stops
Southwest Logo
7:00 am - 12:50 pmONT-BOI
4h 50m1 stop
$291Southwest
Find Deal
vie., dic. 12 - lun., dic. 15
United Airlines Logo
2:40 pm - 5:34 pmBOI-ONT
3h 54m1 stop
United Airlines Logo
6:38 pm - 11:28 pmONT-BOI
3h 50m1 stop
$296United Airlines
Find Deal
mar., nov. 18 - lun., nov. 24

Frontier flights from Boise to Ontario

Our best Frontier deals on Boise to Ontario flight tickets
Frontier
Oct 2
BOI12:22 pmBoise Air Term. Gowen Fld
8h 32m
1 stop
ONT7:54 pmOntario
Oct 8
ONT6:53 amOntario
27h 50m
1 stop
BOI11:43 amBoise Air Term. Gowen Fld
$268
Find similar
Frontier
Sep 14
BOI12:22 pmBoise Air Term. Gowen Fld
20h 31m
1 stop
ONT7:53 amOntario
Sep 18
ONT8:59 pmOntario
13h 38m
1 stop
BOI11:37 amBoise Air Term. Gowen Fld
$281
Find similar

Delta flights from Boise to Ontario

Our best Delta deals on Boise to Ontario flight tickets
Delta
Jan 22
BOI5:00 pmBoise Air Term. Gowen Fld
6h 38m
1 stop
ONT10:38 pmOntario
Jan 28
ONT6:45 amOntario
5h 22m
1 stop
BOI1:07 pmBoise Air Term. Gowen Fld
$167
Find similar
Delta
Sep 24
BOI5:45 amBoise Air Term. Gowen Fld
6h 24m
1 stop
ONT11:09 amOntario
Oct 1
ONT5:40 pmOntario
5h 17m
1 stop
BOI11:57 pmBoise Air Term. Gowen Fld
$217
Find similar
Delta
Sep 23
BOI5:43 pmBoise Air Term. Gowen Fld
6h 59m
1 stop
ONT11:42 pmOntario
Oct 2
ONT11:50 amOntario
5h 26m
1 stop
BOI6:16 pmBoise Air Term. Gowen Fld
$226
Find similar

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 agosto 26, 2025.
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

jue. 1/22

4:30 pm-5:42 pm

Nonstop2h 12m

Ontario

sáb. 1/31

6:22 pm-9:39 pm

Nonstop2h 17m

$147

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

jue. 9/18

2:16 pm-8:56 pm

1 stop7h 40m

Ontario

vie. 9/19

10:28 pm-1:21 pm

1 stop13h 53m

$159

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

jue. 1/22

5:00 pm-10:38 pm

1 stop6h 38m

Ontario

mié. 1/28

6:45 am-1:07 pm

1 stop5h 22m

$167

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

jue. 1/22

1:30 pm-7:47 pm

1 stop7h 17m

Ontario

sáb. 1/31

4:05 pm-10:20 pm

1 stop5h 15m

$176

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

mié. 9/24

5:45 am-11:09 am

1 stop6h 24m

Ontario

mié. 10/1

5:40 pm-11:57 pm

1 stop5h 17m

$217

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

vie. 12/12

5:00 am-9:10 am

1 stop5h 10m

Ontario

lun. 12/15

3:55 pm-8:40 pm

1 stop3h 45m

$258

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

jue. 10/2

12:22 pm-7:54 pm

1 stop8h 32m

Ontario

mié. 10/8

6:53 am-11:43 am

1 stop27h 50m

$268

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

dom. 9/14

12:22 pm-7:53 am

1 stop20h 31m

Ontario

jue. 9/18

8:59 pm-11:37 am

1 stop13h 38m

$281

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

vie. 12/12

12:40 pm-6:00 pm

2 stops6h 20m

Ontario

lun. 12/15

7:00 am-12:50 pm

1 stop4h 50m

$291

BoiseOntario

BOI - ONT

BOIONT

Boise Air Term. Gowen Fld

mar. 11/18

2:40 pm-5:34 pm

1 stop3h 54m

Ontario

lun. 11/24

6:38 pm-11:28 pm

1 stop3h 50m

$296

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $259. If you aren’t able to travel during the month of August, then book flights to Ontario from Boise during October instead. Flights to Ontario in October, while not as cheap as those in August, still average around $302.

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 Tuesday when prices can be found for as low as $284. 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 $353.

What is the cheapest time of day to depart on your flight to Ontario?

In the afternoon is the cheapest time of day to fly from Boise to Ontario when you can find flight prices for as low as $312. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $374 on average. Flights to Ontario from Boise at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $329 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 $175 on momondo.

How have Boise to Ontario flight prices changed over time?

As of August 2025, prices for Boise to Ontario flights are approximately 16% 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

Fastest flight time

2h 12m

Direct flights

Tue, Wed, Thu, Fri and Sat

Airports in Ontario

1 airport
The fastest flight from Boise to Ontario takes 2h 12m
Direct flights go from Boise to Ontario on Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.
There is 1 airport near Ontario: Ontario (ONT)
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  • 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 12m, 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 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 $156Free CancellationRating
7.9
7,979 reviews
Search Delta flights
Alaska AirlinesPriceFrom $214Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $232Free CancellationRating
7.4
8,943 reviews
Search United Airlines flights

  • Southwest Flights From Boise to Ontario

    Southwest flight deals from Boise to Ontario start from $225 round-trip. Over the 3 Southwest flights for this route in a normal week, average airfare is usually $362 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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