ONT - BOI

$69 Find Cheap Flights from Ontario to Boise

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Boise departing on 2/10. 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 Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Boise, 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 Ontario to Boise, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$97
Overall average: $336
Alaska Airlines
tir. 2/10ons. 2/18
ONT - BOI • Non-stop
Cheapest one-way
$69
Typical prices: $116-$167
Delta
tir. 2/10
ONT - BOI • 1 stop
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 47% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 29% price drop
December
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 Boise!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Boise (ONT-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Boise 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 Ontario to Boise

tir., feb. 10 - ons., feb. 18
Alaska Airlines Logo
7:56 pm - 10:57 pmONT-BOI
2h 01mnonstop
Alaska Airlines Logo
6:07 pm - 7:14 pmBOI-ONT
2h 07mnonstop
$97Alaska Airlines
Find Deal
man., feb. 9 - ons., feb. 18
Alaska Airlines Logo
7:56 pm - 10:57 pmONT-BOI
2h 01mnonstop
Alaska Airlines Logo
6:07 pm - 7:14 pmBOI-ONT
2h 07mnonstop
$107Alaska Airlines
Find Deal
tor., jan. 8 - man., jan. 12
Alaska Airlines Logo
7:56 pm - 10:57 pmONT-BOI
2h 01mnonstop
Alaska Airlines Logo
6:09 pm - 7:16 pmBOI-ONT
2h 07mnonstop
$117Alaska Airlines
Find Deal
fre., feb. 13 - tir., feb. 17
Alaska Airlines Logo
7:37 pm - 10:36 pmONT-BOI
1h 59mnonstop
Alaska Airlines Logo
6:07 pm - 7:14 pmBOI-ONT
2h 07mnonstop
$127Alaska Airlines
Find Deal
lør., jan. 10 - lør., jan. 17
Alaska Airlines Logo
7:56 pm - 10:57 pmONT-BOI
2h 01mnonstop
Alaska Airlines Logo
6:09 pm - 7:16 pmBOI-ONT
2h 07mnonstop
$136Alaska Airlines
Find Deal
tor., jan. 8 - søn., jan. 11
Alaska Airlines Logo
7:56 pm - 10:57 pmONT-BOI
2h 01mnonstop
Alaska Airlines Logo
6:09 pm - 7:16 pmBOI-ONT
2h 07mnonstop
$137Alaska Airlines
Find Deal
lør., jan. 17 - søn., jan. 18
Delta Logo
3:30 pm - 9:58 pmONT-BOI
5h 28m1 stop
Delta Logo
6:15 pm - 9:48 pmBOI-ONT
4h 33m1 stop
$138Delta
Find Deal
lør., jan. 10 - tir., jan. 13
Alaska Airlines Logo
4:03 pm - 11:01 pmONT-BOI
5h 58m1 stop
Alaska Airlines Logo
6:09 pm - 7:16 pmBOI-ONT
2h 07mnonstop
$141Alaska Airlines
Find Deal
lør., feb. 28 - tir., mar. 3
Delta Logo
3:30 pm - 9:56 pmONT-BOI
5h 26m1 stop
Delta Logo
6:20 pm - 11:49 pmBOI-ONT
6h 29m1 stop
$147Delta
Find Deal
lør., jan. 17 - søn., jan. 18
Alaska Airlines Logo
7:56 pm - 10:57 pmONT-BOI
2h 01mnonstop
Alaska Airlines Logo
4:04 pm - 8:10 pmBOI-ONT
5h 06m1 stop
$148Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Boise flights

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

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

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

If you are looking for a flight deal from Ontario to Boise, look for departures on Thursdays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from Boise, Saturday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Boise, 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 Ontario to Boise is January, where tickets cost $227 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $464 and $380 respectively.

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

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 $186, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Boise, 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 Ontario to Boise, you should book around 4 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$69
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 45% increase in price.
Flight from Ontario to Boise

When to book flights from Ontario to Boise

Are your dates flexible? Find out the best times to travel from Ontario to Boise 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 Ontario to Boise

  • What seat selection options are available on Alaska Airlines flights from Ontario to Boise?

    Alaska Airlines provides several seat selection options to its passengers. Preferred Seats provide passengers with extra legroom and are located near the front of the cabin. Alaska Airlines also offers premium class seats that provide passengers with more space, wider seats, and additional amenities. Exit Row Seats provide extra legroom, and passengers must meet specific safety requirements to sit in an exit row. Exit row seats are available for purchase for an additional fee.

  • What services does United Airlines offer Economy Class passengers on flights from Ontario to Boise?

    United Airlines provides several services and amenities to its Economy Class passengers on flights. Passengers can enjoy a selection of movies and are offered a complimentary snack and beverage. United offers in-flight Wi-Fi on most of its flights for a fee or through a pre-purchased package. The airline also offers complimentary access to Wi-Fi messaging.

  • What is the luggage allowance on American Airlines flights from Ontario to Boise?

    American Airlines' luggage allowance policy varies depending on the ticket class and frequent flyer status. Basic Economy passengers are only allowed to bring one personal item on board and are not permitted to bring a full-size carry-on bag. Main Cabin passengers are allowed to bring one carry-on bag and one personal item on board and one checked bag for a fee.

  • How do I get from Boise Airport (BOI) to the city center?

    Taxis are available at BOI airport and can take you to the city center in about 10-15 minutes. The cost can vary, but it is usually around $15-$20. Companies like Uber and Lyft are available at the airport and can take you to the city center. The cost and duration of the ride can vary depending on traffic conditions. The Valley Regional Transit (VRT) operates several bus routes in the Boise area, including a route that stops at the airport. The route 10 bus can take you to Downtown Boise from the airport. The cost of the ride is $2, and the duration is about 35-45 minutes.

  • What is the cheapest flight from Ontario to Boise?

    In the last 3 days, the lowest price for a flight from Ontario to Boise was $69 for a one-way ticket and $97 for a round-trip.

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

    No, a passport isn't needed to fly from Ontario to Boise. However, local authorities might ask for an official ID.

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

    Ontario airport is called Ontario and the only airport in Boise is Boise Air Term. Gowen Fld.

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

    Alaska Airlines, and Hawaiian Airlines offer inflight Wi-Fi service on the Ontario to Boise flight route.

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

    The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Ontario to Boise flight route.

  • Which airline alliances offer flights from Ontario to Boise?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Boise are Southwest and Alaska Airlines. With an average price for the route of $350 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $247 and an overall rating of 8.0.

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

    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 Ontario to Boise.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from Ontario 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 Ontario to Boise?

    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 Boise with an airline and back to Ontario with another airline. Booking your flights between Ontario and BOI 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 Ontario to Boise?

    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 Boise from Ontario 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 Ontario to Boise

  • Looking for a cheap flight? 25% of our users found flights on this route for $171 or less round-trip.
  • Flights from Ontario to Boise have layovers in different cities depending on the airline. Some of them include Phoenix (PHX), Salt Lake City (SLC), San Francisco (SFO), and Seattle (SEA).
  • United Airlines provides assistance to passengers with reduced mobility on flights from Ontario to Boise. Passengers can request assistance from airport staff to help them navigate between terminals and on board.
  • American Airlines uses Terminal 4 at Ontario International Airport (ONT) for flights to Boise. It is important to note that the terminal may change, so it is recommended to check at the information desks before the flight.
  • Delta Airlines is working to optimize its operations to reduce fuel burn and emissions. This includes reducing taxi time, optimizing flight routes, and improving the efficiency of ground operations even for flights from Ontario to Boise.
  • Southwest Airlines offers several services to families with kids on flights from Ontario to Boise. The airline provides an unaccompanied minor service to children between the ages of 5 and 11 years old and a family boarding process where a family with children aged 6 or under will find seats together.

Prefer to fly direct from Ontario to Boise?

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

Direct departures

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

Direct returns

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

Reviews of the top 5 airlines serving from Ontario to Boise

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Boise. 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 Ontario to Boise? 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.
8.0
Alaska AirlinesOverall score based on 11386 reviews
7.0Entertainment
7.8Comfort
8.1Boarding
8.5Crew
7.1Food
Airline reviews

They changed our flight from a one stop 3 hour layover to a non-stop. Saved us hours and got us there sooner.

10.0 ExcellentChuck, Nov 2025SBP - SAN
Read more Alaska Airlines reviews

They changed our flight from a one stop 3 hour layover to a non-stop. Saved us hours and got us there sooner.

The ground crew did not supply drink or snacks during the layover in SFO. So there weren't many options. Otherwise, it was all great.

No accommodation or credit offered for cancelled layover flight to Eugene from portland

I love a red eye flight. No lines to wait in. Lots of turbulence on the flight and a very shaky landing.

I truly appreciated the kindness and attentiveness of the staff and flight attendants. They did their best to be prompt with departure times to San Diego and back to New York! Alaska Airlines ... you are awesome!!

Flight from PSP delayed ~2hs and missed connection. Terrible service providing acommodations & food (no rides - just the hotel van every 30 min, which you have to call). 12 dollars in food for a 9 hour delay. 30+ minutes to get everything sorted out.

You need a n/a category. Too short a flight for food. I love flying on Alaska from Santa Rosa Airport!

I didn’t order food so can’t really say how it was. Overall, it was a great experience.

I've never flied them before but liked them. Weather was bad so a little scarey but they did a great job landing.

If they actually let me fly. I was rerouted to United and there was no Alaska airlines reps at all. Then the lady who worked the delta counter told me to go away and figure things out myself. Horrible experience.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Having to up charge for a seat assignment is not good. Delta can do better

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Premium Plus is a really good idea for longer flights

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

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

Information on your arrival and departure airports