BOI - ONT

$99 Find Cheap Flights from Boise to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Ontario departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$177
Typical prices: $366-$258
Alaska Airlines
Wed 9/16Sat 9/19
BOI - ONT • Non-stop
Cheapest non-stop
$177
Alaska Airlines
Tue 9/8Sat 9/12
BOI - ONT • Non-stop
Top airlines
Cheapest • from $177 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Alaska Airlines. Average duration is 2h 07m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top layover airports
Cheapest • Avg $287 (round-trip)
Shortest trip • 3h 57m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Ontario (BOI-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Ontario

Wed, Sep 16 - Sat, Sep 19
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:50 pm - 7:45 pm
ONT
-
BOI
1h 55mnonstop
$177Alaska Airlines
Tue, Aug 25 - Tue, Sep 1
Delta Logo
6:00 am - 8:52 am
BOI
-
ONT
3h 52m
1 stop
Delta Logo
5:05 pm - 9:59 pm
ONT
-
BOI
3h 54m
1 stop
$187Delta
Tue, Aug 25 - Tue, Sep 1
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:50 pm - 7:45 pm
ONT
-
BOI
1h 55mnonstop
$192Alaska Airlines
Wed, Aug 19 - Sun, Aug 23
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:50 pm - 7:45 pm
ONT
-
BOI
1h 55mnonstop
$195Alaska Airlines
Sat, Aug 29 - Sat, Sep 5
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:50 pm - 7:45 pm
ONT
-
BOI
1h 55mnonstop
$197Alaska Airlines
Wed, Sep 16 - Mon, Sep 21
Delta Logo
6:40 pm - 11:37 pm
BOI
-
ONT
5h 57m
1 stop
Delta Logo
5:13 pm - 11:58 pm
ONT
-
BOI
5h 45m
1 stop
$202Delta
Thu, Oct 1 - Mon, Oct 5
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:42 pm - 7:42 pm
ONT
-
BOI
2h 00mnonstop
$204Alaska Airlines
Thu, Sep 17 - Mon, Sep 21
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:50 pm - 7:45 pm
ONT
-
BOI
1h 55mnonstop
$207Alaska Airlines
Mon, Aug 31 - Sat, Sep 5
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:50 pm - 7:45 pm
ONT
-
BOI
1h 55mnonstop
$216Alaska Airlines
Thu, Sep 24 - Mon, Sep 28
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:50 pm - 7:45 pm
ONT
-
BOI
1h 55mnonstop
$217Alaska Airlines
Booking Insights

KAYAK's insights & trends for Boise to Ontario flights

Get data-powered insights and trends into flights from Boise to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boise to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boise to Ontario departing in September.

What’s the cheapest day of the week to fly from Boise to Ontario?

The average price of all round-trip flights from Boise to Ontario clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Ontario on a Tuesday and more expensive on a Sunday. On your return trip to Boise, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

What is the cheapest month to fly from Boise to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boise to Ontario is January, where tickets cost $237 (return) on average. On the other hand, the most expensive months are October and March, where the average cost of round-trip tickets is $594 and $437 respectively.

Can I save money by flying with a layover from Boise to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $358, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boise to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boise to Ontario, you should book around 4 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$99
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Boise to Ontario

When to book flights from Boise to Ontario

Are your dates flexible? Find out the best times to travel from Boise to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boise to Ontario

  • What is the cheapest flight from Boise to Ontario?

    In the last 5 days, the lowest price for a flight from Boise to Ontario was $99 for a one-way ticket and $177 for a round-trip.

  • Do I need a passport to fly between Boise and Ontario?

    A passport is not required to fly from Boise to Ontario.

  • Which airports will I be using when flying from Boise to Ontario?

    When flying out of Boise you will be using Boise Air Term. Gowen Fld. You will be landing at Ontario, also known as Ontario.

  • Which airlines offer Wi-Fi service onboard planes from Boise to Ontario?

    Only Alaska Airlines offers inflight Wi-Fi service on the Boise to Ontario flight route.

  • Which aircraft models fly most regularly from Boise to Ontario?

    The Embraer 175 is the aircraft model that flies most regularly on the Boise to Ontario flight route.

  • Which airline alliances offer flights from Boise to Ontario?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Boise and Ontario, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Boise to Ontario?

    There are nonstop flights from Boise to Ontario on a daily basis.

  • Which is the best airline for flights from Boise to Ontario, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Boise to Ontario are Southwest and Alaska Airlines. With an average price for the route of $368 and an overall rating of 7.9, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $278 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Boise to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Boise with another airline. Booking your flights between Boise and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boise to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $203 or less one-way and $177 or less round-trip.

Prefer to fly direct from Boise to Ontario?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boise Air Term. Gowen Fld to Ontario.
Find which airlines fly direct from Boise Air Term. Gowen Fld Airport to Ontario Airport, which days they fly and book direct flights.

Direct departures

Boise Air Term. Gowen Fld to Ontario

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Direct returns

Ontario to Boise Air Term. Gowen Fld

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Reviews of the top 4 airlines serving from Boise to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Boise to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12533 reviews
7.0Entertainment
8.1Boarding
8.5Crew
7.0Food
7.8Comfort
Airline reviews

On time, good seats, not overly full, up beast positive crew.

10.0 ExcellentAnonymous, Jun 2026
SEA - SBA
Read more Alaska Airlines reviews

On time, good seats, not overly full, up beast positive crew.

People were friendly. Flight was a little delayed. Maybe I missed the reason for it. Overall a nice experience.

The flight itself was great. But we had to wait over an hour to deplane so I missed my train. Not the crews fault. They were wonderful!

Great trip. No complaints. Impressed with the crew’s response to various challenges pre-boarding.

Eva Airlines attendants were wonderful. I really enjoyed the hot meals. They always greeted me with a warm smile. I'm looking forward to flying back to the USA with them again!

Over all it was great. My original flight was canceled but they quickly rebooked me. I was frustrated because I had to cancel my entire plans for the day but all considered, not bad. The crew tried to keep us calm while we sat in the plane for was felt was an hour or so but they could use a bit of a script. The seats were comfortable and I would give it another try.

Flight was cancelled which destroyed the rest of our journey.

WOuld have liked coffee or pretzels but other than that, crew and pilot and flight were great. Seat was great, too.

The overhead storage was already packed full when I boarded (I fly peasant class), but the attendant played some Tetris and made a spot for my small suitcase. Thanks!

Snacks for our toddler could have been better, front the standpoint of variety but that’s not any different from other airlines.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

my mom urmila patel needed a wheelchair which was not available on the curbside. she needed to walk almost 50 meters inside (at the risk of falling) and then had to wait in line to get a wheelchair (this is not ok). Once obtained she had to seat in it for 30-45 minutes for someone to take her in thru the checkin process (which was fairly smooth and easy). the lady who helped her with her checkin process was very courteous and helpful

Staff at the check-in counter were friendly, happy and helpful. They tagged our bags and sent us to “bag drop off” but were not very clear about where that was. The airport was busy we headed off in what we thought was the right direction until a gentleman waved us down and actually came after us. He was the baggage handler for Delta and recognized our “deer in the headlights “ look-he brought us to the right area (which was marked as the Southwest Airlines Drop Off) and sent us on our way. Wonderful guy, low key and working with a big smile on his face. Loved it. Loved him.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Service was professional and quick. Premium economy seat was comfortable given the class

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

Everything you need to know for your flight from Boise to Ontario

Information on your arrival and departure airports