Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

ONT - BOI

Find cheap flights from Ontario to Boise from $101

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Boise departing on 5/20. 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
0 bags
Thu 5/16
Thu 5/23

Search 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Boise.
In the last 7 days travelers have searched 43,990,755 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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

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

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

Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
9:57 pm - 4:30 pmONT-BOI
17h 33m1 stop
9:15 pm - 9:04 amBOI-ONT
12h 49m1 stop
Mon, May 20 - Tue, May 21
12:39 pm - 8:25 pmONT-BOI
6h 46m1 stop
9:15 pm - 9:04 amBOI-ONT
12h 49m1 stop
Tue, May 14 - Tue, May 21
6:00 am - 12:20 pmONT-BOI
5h 20m1 stop
11:05 am - 4:05 pmBOI-ONT
6h 00m1 stop
$238Alaska Airlines
Find Deal
Tue, May 7 - Tue, May 14
2:13 pm - 8:32 pmONT-BOI
5h 19m1 stop
5:59 pm - 9:39 pmBOI-ONT
4h 40m1 stop
$267Delta
Find Deal
Tue, May 7 - Sat, May 25
5:00 pm - 11:58 pmONT-BOI
5h 58m1 stop
4:55 pm - 9:05 amBOI-ONT
17h 10m2 stops
$285Alaska Airlines
Find Deal
Tue, May 14 - Tue, May 21
1:20 pm - 6:57 pmONT-BOI
4h 37m1 stop
7:59 pm - 11:44 pmBOI-ONT
4h 45m1 stop
$336Delta
Find Deal
Tue, Jul 30 - Thu, Aug 8
6:00 am - 11:17 amONT-BOI
4h 17m1 stop
6:30 pm - 11:04 pmBOI-ONT
5h 34m1 stop
$397United Airlines
Find Deal
Thu, May 2 - Mon, May 6
6:10 am - 4:37 pmONT-BOI
9h 27m1 stop
7:05 pm - 10:45 pmBOI-ONT
4h 40m1 stop
$445United Airlines
Find Deal
Sun, Aug 4 - Sat, Aug 17
6:15 am - 1:03 pmONT-BOI
5h 48m1 stop
6:04 pm - 9:44 pmBOI-ONT
4h 40m1 stop
$556American Airlines
Find Deal
Sat, Aug 10 - Sun, Aug 11
10:00 am - 4:49 pmONT-BOI
5h 49m1 stop
6:30 am - 11:50 amBOI-ONT
6h 20m1 stop
$566American Airlines
Find Deal
Sat, May 4 - Sun, May 5

Flights from Ontario to Boise - Travel Insights & Trends

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 flights from Ontario to Boise clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Boise on a Tuesday and more expensive on a Sunday. On your return trip to Ontario, you should consider flying back on a Sunday, and avoid Mondays for better deals.

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 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 April, where tickets cost $153 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $268 and $268 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Ontario to Boise, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 81 days before departure.

Which airlines provide the cheapest flights from Ontario to Boise?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Delta offered the best one-way deal for that route, at $119. KAYAK users also found Ontario to Boise round-trip flights on Alaska Airlines from $238 and on Delta from $267.

Good to know

Low season

January

High season

June

Cheapest flight

$101
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 30% 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 $119 for a one-way ticket and $101 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 aircraft models fly most regularly from Ontario to Boise?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Boise?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Boise are Alaska Airlines and Delta. With an average price for the route of $320 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $344 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.

See more FAQs

Top tips for finding a cheap flight from ONT to Boise

  • 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.
See more tips

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.
8.1
Alaska AirlinesOverall score based on 9054 reviews
7.3food
7.9comfort
7.3entertainment
8.6crew
8.2boarding
Airline reviews

It was the worst experience because they delayed the flight by 2 and half hours. We were supposed to depart by 3:41 but they did the depart by 6 pm. It was so boring!!

2.0 MediocreAnonymous, Apr 2024SAN - SFO
Read more about Alaska Airlines reviews

It was the worst experience because they delayed the flight by 2 and half hours. We were supposed to depart by 3:41 but they did the depart by 6 pm. It was so boring!!

The flight was diverted and departed from San Jose instead of San Francisco. This could’ve been executed more smoothly because after arriving in San Jose it seemed like nothing was being processed correctly as needed for the gate agents to do their jobs well and the flight to leave on time

I’m a first time mom and traveled with my 18mo old boy and it was not a great experience with the flight attendants. They were not friendly or helpful at all. It’s hard enough traveling with a toddler and have people be rude and unkind does not help.

It was adequate nothing special no entertain because flight was short. Crew pleasant.

Good! Although I wish I didn’t have to check my bag at the gate, when I got on the plane there was plenty of room for the bag.

My experience with Alaska Airlines flights is dominated by the fact that today’s economy class is barely humane. Everyone is so tightly packed together that one cannot move an inch for the entire flight…. and if it’s a bicoastal trip, that’s almost five hours of discomfort!! And if you’re above average in height and/or weight it’s absolute hell! Moreover, still all Economy classes are basically the same across airline carriers, it doesn’t matter who you fly with.

The cabin stewart took care of my garment bag and then made sure I did not forget it on my way out. The stewardess gave me water after I missed the earlier service (I was asleep). I received good service overall.

Excellent service and prices. I was not award of inflight entertainment.

Both flights from NYC to SFO were delayed more than an hour. No wifi, no screens/movies etc. The crew was nice.

They gave me a seat with extra leg room. But they didn't offer me anything to drink, just because it was an hour flight

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

You need to be a hacker to get the (Free) WiFi

I guess they don’t serve drinks on planes anymore

The flight was overbooked and the staff at the gate started calling for volunteers to drop out and offering incentives. That delayed the flight

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

the head jack on my seat didn't work and the power outlet didn't work for my seat

Left 2 hours later for delayed I had to take care a kid with special need since people don’t want to move to accommodate the rest of the family. . It wasn’t bad but that made me upset that people can be that selfish.

For a 22 minute flight all you expect is for it to be safe and comfortable

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Wouldn’t let me check in said couldn’t find a ticket had to wait very long Time

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

Apart from the delay due to unforeseen circumstances. The leg from sjc to dfw was fine. It was the leg from dfw to orf that we encountered issues mainly due to the flight attendant crew not being friendly. We had two small children and we needed some assistance to warm up milk so the baby would sleep. The crew just didn’t get it and made things very difficult. One made a remark that the baby’s dirty diaper smell was a “gift” to the plane in a rude way. Normally I’d brush that off as a funny comment if the rest of the trip the attendants were helpful or understanding of the difficulty we faced. But that wasn’t the case. We were met with rudeness on the second leg. Whereas on the first leg the crew were so nice and helpful.

Flight From PHX to CVG was on time, very professional staff

Flight was delayed and missed connecting flight. Did not give warning about delay until we showed up at the airport. Not good.

The usual wait at Columbus once you land to get to an open gate (20 minutes) and then the usual 30 minutes for your luggage to appear.

Nothing, flight was supposed to leave at 758 am. My flight didn’t leave until 430 pm. Spent the whole day at the airport.

Everything was very good EXCEPT the food, on a five and a half hour trip. They only gave to us was snacks in first class. They didn't give us pillows or blankets.

Kayak does not know that spirit airlines charged me $70 to fly. But the bag check-in was $89 each way. This is false advertising to lure people. Spirit airlines sends bunch of emails after flight purchases to buy wifi, better seats, priority boarding, secure reserved seats. This is false advertising. Up front pricing. I would of flown jet blue or Alaska airlines.

One hour late taking off. Concerning, very hard landing. Uncomfortable seats with no recline. Extremely slow baggage claim. Very professional, knowledgeable flight attendants. Brand new, very clean plane.

Can’t say there was anything I particularly liked. Seats were very tight, leather wrapped plastic. I followed up a much longer and cheaper trip from Honolulu on southwest, everything was phenomenal, this flight was the exact opposite. Blows my mind they charge for water of all things. One of the attendants seemed very rude, I watched a taller gentleman a couple rows forward with his knees pressed into the back of the seat ahead, while the woman in that seat leaned forward the entire flight, I’m sure because she could feel his knees. I’ll be avoiding spirit like the plague from here forward.

Didn’t make the connecting flight due to a delay on our first flight.

I felt scam to have to pay $50 additional for my carry on luggage which was free for my other airline.

Enjoyed the experience, on time flights, friendly staff the WiFi was intros d kept cutting out.

Awful experience. Both flights were delayed several times with weather but also crew members being the official cause. The vouchers are unusable and insufficient ($50 voucher to fly the same crappy airline is a joke for putting me on a red-eye that landed at 3:00 am). The aircrafts were old and uncomfortable (have a real pocket on the seat, for crying out loud!).

Its so random that they only allow 40 pounds on checked bags when all airlines take 55. They then charge you for each 10 extra pounds, so my checked suitcase was $130 and the flight $30 ... its like whattt, im for sure not traveling with Spirit again

Flight was canceled and rebooked for the next day. Had to cancel the entire vacation.

It wasn’t as horrible as I would have expected, however, to not provide water and change so much for bags is a ripoff to say the least.

Book cheap flights from Ontario to Boise

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Boise found on KAYAK in the last 72 hours.
5/7Tue
1 stopDelta
5h 54mONT-BOI
$119
6/4Tue
1 stopDelta
5h 54mONT-BOI
$148
5/9Thu
1 stopDelta
5h 19mONT-BOI
$159
5/14Tue
1 stopAlaska Airlines
27h 22mONT-BOI
$167
5/7Tue
2 stopsAlaska Airlines
14h 27mONT-BOI
$172
7/13Sat
1 stopUnited Airlines
6h 27mONT-BOI
$183
5/12Sun
1 stopUnited Airlines
4h 17mONT-BOI
$185
5/13Mon
1 stopAlaska Airlines
26h 59mONT-BOI
$187
7/27Sat
1 stopAmerican Airlines
6h 03mONT-BOI
$278
7/26Fri
1 stopAmerican Airlines
6h 03mONT-BOI
$398

Search by stops

Search by airline

Search by price

Last minute flights from Ontario to Boise

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Boise that are departing in the next 10 days.
4/18Thu
multi-stop
5h 45mONT-BOI
4/20Sat
multi-stop
11h 48mBOI-ONT
$273
4/17Wed
multi-stopAlaska Airlines
7h 05mONT-BOI
4/24Wed
multi-stopAlaska Airlines
6h 00mBOI-ONT
$556
4/19Fri
multi-stopUnited Airlines
6h 49mONT-BOI
4/22Mon
multi-stopUnited Airlines
4h 27mBOI-ONT
$591
4/18Thu
multi-stopAmerican Airlines
5h 55mONT-BOI
4/24Wed
multi-stopAmerican Airlines
5h 36mBOI-ONT
$596
4/20Sat
multi-stopUnited Airlines
5h 03mONT-BOI
4/25Thu
multi-stopUnited Airlines
4h 27mBOI-ONT
$607
4/19Fri
multi-stopAmerican Airlines
5h 55mONT-BOI
4/26Fri
multi-stopAmerican Airlines
6h 20mBOI-ONT
$618
4/21Sun
multi-stopAlaska Airlines
7h 05mONT-BOI
4/24Wed
multi-stopAlaska Airlines
17h 53mBOI-ONT
$629
4/18Thu
multi-stopAmerican Airlines
5h 55mONT-BOI
4/18Thu
multi-stopAmerican Airlines
5h 36mBOI-ONT
$630
4/19Fri
multi-stopAmerican Airlines
5h 55mONT-BOI
4/21Sun
multi-stopAmerican Airlines
6h 20mBOI-ONT
$636
4/17Wed
multi-stopAlaska Airlines
5h 58mONT-BOI
4/24Wed
multi-stopAlaska Airlines
10h 05mBOI-ONT
$689

Search by stops

Search by airline

Search by price

Ontario - Boise Flights

Departure:

Ontario (ONT)United States

Destination:

Boise (BOI)United States

Return flight deals:

Boise - Ontario

Cabin classes:

Browse destinations: