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BOI - ONT

$123 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 5/31. 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
Mon 6/3
Mon 6/10

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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
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
5:52 pm - 10:37 pmBOI-ONT
5h 45m1 stop
11:40 am - 8:30 pmONT-BOI
7h 50m1 stop
$238Delta
Find Deal
Sat, Jun 1 - Sat, Jun 8
5:59 pm - 11:51 pmBOI-ONT
6h 52m1 stop
5:40 pm - 11:59 pmONT-BOI
5h 19m1 stop
$246Delta
Find Deal
Tue, Oct 1 - Wed, Oct 9
5:59 pm - 11:51 pmBOI-ONT
6h 52m1 stop
5:40 pm - 11:59 pmONT-BOI
5h 19m1 stop
$266Delta
Find Deal
Thu, Oct 3 - Sat, Oct 5
7:05 pm - 11:43 pmBOI-ONT
5h 38m1 stop
5:45 am - 12:22 pmONT-BOI
5h 37m1 stop
$272Delta
Find Deal
Wed, May 29 - Sun, Jun 2
7:49 pm - 11:59 pmBOI-ONT
5h 10m1 stop
4:24 pm - 11:59 pmONT-BOI
6h 35m1 stop
$301Alaska Airlines
Find Deal
Wed, Jun 19 - Mon, Jun 24
5:15 pm - 11:58 pmBOI-ONT
7h 43m1 stop
6:00 am - 2:07 pmONT-BOI
7h 07m1 stop
$324Alaska Airlines
Find Deal
Tue, May 28 - Tue, Jun 4
7:07 pm - 10:27 pmBOI-ONT
4h 20m1 stop
1:34 pm - 9:12 pmONT-BOI
6h 38m1 stop
$376United Airlines
Find Deal
Mon, Jun 17 - Sat, Jun 22
6:30 pm - 11:04 pmBOI-ONT
5h 34m1 stop
6:00 am - 11:17 amONT-BOI
4h 17m1 stop
$382United Airlines
Find Deal
Fri, May 17 - Tue, May 21
6:30 am - 11:47 amBOI-ONT
6h 17m1 stop
6:45 am - 1:15 pmONT-BOI
5h 30m1 stop
$478American Airlines
Find Deal
Mon, May 13 - Wed, May 15
12:59 am - 1:52 pmBOI-ONT
13h 53m1 stop
6:45 am - 1:15 pmONT-BOI
5h 30m1 stop
$957American Airlines
Find Deal
Thu, May 23 - Mon, May 27

Flights from Boise to Ontario - Travel Insights & Trends

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.

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

The average price of all flights from Boise to Ontario clicked on KAYAK for each day over the last 12 months.
For Boise to Ontario, Sunday is the cheapest day to fly on average and Monday is the most expensive. Flying from Ontario back to Boise, the best deals are generally found on Tuesday, with Monday being the most expensive.

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 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 February, where tickets cost $247 on average. On the other hand, the most expensive months are May and March, where the average cost of tickets is $490 and $455 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Boise to Ontario, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 50 days before departure.

Which airlines provide the cheapest flights from Boise to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Delta ($123) and Alaska Airlines ($167). The cheapest round-trip tickets were found on Delta ($238) and Alaska Airlines ($301).

Good to know

Low season

February

High season

March

Cheapest flight

$123
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly with an average 17% increase in price.
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 3 days, the lowest price for a flight from Boise to Ontario was $123 for a one-way ticket and $238 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 aircraft models fly most regularly from Boise to Ontario?

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

  • Which airline alliances offer flights from Boise to Ontario?

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

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

    The two airlines most popular with KAYAK users for flights from Boise to Ontario are Delta and Alaska Airlines. With an average price for the route of $335 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $370 and an overall rating of 8.0.

  • 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.

See more FAQs

Top 5 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.
8.0
Alaska AirlinesOverall score based on 9128 reviews
7.3Entertainment
7.9Comfort
8.2Boarding
8.6Crew
7.3Food
Airline reviews

They canceled the flight 30 minutes prior to departure without any heads up.

2.0 MediocreAnonymous, May 2024SFO - LAX
Read more about Alaska Airlines reviews

They canceled the flight 30 minutes prior to departure without any heads up.

Like South West(2 check in baggage free) if Alaskan Airlines could give at least one check in baggage free then it would be great.

Up on arrival, due to twisted ankle, I wasn’t able to walk. Requested for a wheelchair. They immediately asked for it. After 10 minutes wait a young man named Carlos picked me up at the gate, got my baggage and took me to the pick up area. It was a great service. Thanks Alaska Air line

Staff great. Tight seating. Pretzels and drink same as any other airline.

We had a very scary attempted landing in Palm Springs and were redirected to Ontario. It was a stressful flight.

Every thing means , crew, service, timing, boarding is very good.

My boarding pass birthdate was printed incorrectly causing me to spend an extra hour in a check-in and then again TSA line and to miss a chance to have dinner pre-flight. My window seat was given away and was replaced with a middle seat. I would have liked an opportunity to charge my phone and take advantage of movies but many of the departure gate chargers weren’t operational and I don’t know of an in-flight charging option, The flight left 45 late after trouble with unruly passengers, and I was glad staff removed them.

Horrible. I likely will have to spend several thousand dollars to rebook my international flights, due to their delays, plus a hotel in SF. I can’t wait to never fly them again!

Pleasant flight, now wifi, but did get pushed to the exit row gracefully cause I am a tall man. Was a pleasant thank you.

Long flights are best when the seats have movies and shows to watch.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

Was a great smooth flight from Detroit to San Diego.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Too many fees (but that seems to apply to all airlines nowadays)

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

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

Poor availability of food. Cold cabin temperature. Extremely long waiting time for a flight attendant to respond to a call button signal.

2.5h delay due to unruly passenger in first class. Had to be removed from the flight. No food unless pre ordered. Didn't know we would need it because of delay.

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

They charged me 212.00 for a heavy check in bag at the gate. The pricing and process was so confusing - as if it was designed to purposefully gouge customers who need to board plane. That experience combined with the outrageous price charged will prevent me from ever flying Spirit again. And I’ll be sure to tell the story to anyone who cares to hear.

The text told me it was changed to Terminal E and Gate D5. But with no one on site to ask questions there was confusion on where to go as all the gates were E's. Then we took the skyline to the D area. We left to get something to eat. No announcement was made but my daughter happened to asked and they told her our gate was moved to D12. I will not fly Spirit again.

The agent at the check in desk was absolutely rude. The rest of the team after that was good, but the check in process at LAS was miserable. The woman at the desk spoke like we were stupid and was rude throughout the process.

No basic services such as water, snacks. Internet very expensive. Seats were very small, hard and uncomfortable. Alaskan Airlines, my outbound flight to Boise from Orlando, offered beverage service, a snack, and reasonable priced internet, for the same price as my return trip on Spirit. It had more comfortable seating also.

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

So bad. The check in process was laborious and the check in agent didn't seem to know how to manage the process efficiently and was confused about how to check in my son's sports equipment. The baggage fees were outrageous and so expensive. $90 for a carry on bag? And $200 additional for 2 check ins. The security lines were insanely long and the terminal was not very nice in the Spirit area. $5 for a water on board. It was my first and last time flying Spirit - I tried to save $ by flying them due to the accommodating schedule but I should have paid for Southwest, because it would've actually ended up less expensive due to the free bags with Southwest. There were no charging ports on the airplane, no wifi and really uncomfortable seating. The flight crew were great though, courteous and efficient in their boarding. Flight was delayed 1 hour, but we made up 15 minutes in flight.

My experience was better than expected. What I did find not so great was the seats. Very little room, they did not recline and the tray table was the size of a post card. There was no food to try, just standard snacks that you had to pay for and I don’t know of any entertainment. I would fly again even though everything was an upcharge. Flight was on time with little disturbance

thy don't even ofer water we have to buy it for $4.49 and paid for our cary on bags $100 each we never will fly in this company again.

Super cool and laid back, three lovely ladies. Couldn’t ask for better service.

Book cheap flights from Boise to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Boise to Ontario found on KAYAK in the last 72 hours.
5/31Fri
1 stopDelta
6h 44mBOI-ONT
$123
5/28Tue
1 stopDelta
6h 44mBOI-ONT
$128
6/1Sat
1 stopDelta
4h 40mBOI-ONT
$143
6/2Sun
1 stopDelta
6h 44mBOI-ONT
$153
5/28Tue
1 stopAlaska Airlines
13h 25mBOI-ONT
$167
5/28Tue
2 stopsAlaska Airlines
8h 03mBOI-ONT
$171
6/6Thu
1 stopUnited Airlines
4h 35mBOI-ONT
$188
5/17Fri
1 stopUnited Airlines
5h 34mBOI-ONT
$228
5/27Mon
1 stopAmerican Airlines
30h 14mBOI-ONT
$266
5/27Mon
1 stopAmerican Airlines
6h 14mBOI-ONT
$293

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Last minute flights from Boise to Ontario

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 Boise to Ontario that are departing in the next 10 days.
5/7Tue
multi-stopDelta
6h 52mBOI-ONT
5/14Tue
multi-stopDelta
8h 16mONT-BOI
$470
5/6Mon
multi-stopDelta
5h 54mBOI-ONT
5/8Wed
multi-stopDelta
5h 37mONT-BOI
$484
5/9Thu
multi-stopAlaska Airlines
5h 04mBOI-ONT
5/12Sun
multi-stopAlaska Airlines
5h 20mONT-BOI
$486
5/7Tue
multi-stopAlaska Airlines
7h 28mBOI-ONT
5/14Tue
multi-stopAlaska Airlines
12h 30mONT-BOI
$561
5/7Tue
multi-stopAlaska Airlines
7h 53mBOI-ONT
5/14Tue
multi-stopAlaska Airlines
12h 30mONT-BOI
$792
5/6Mon
multi-stopAlaska Airlines
5h 58mBOI-ONT
5/8Wed
multi-stopAlaska Airlines
11h 30mONT-BOI
$804
5/6Mon
multi-stopAlaska Airlines
9h 53mBOI-ONT
5/8Wed
multi-stopAlaska Airlines
10h 03mONT-BOI
$1,276

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Boise - Ontario Flights

Departure:

Boise (BOI)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Boise

Cabin classes: