$170 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 6/19. 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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Flight Deals

Book Cheap Boise to Ontario Plane Tickets

 
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, Jul 1 - Fri, Jul 10
United Airlines Logo
6:30 am - 4:10 pm
BOI
-
YYZ
7h 40m
1 stop
United Airlines Logo
6:30 am - 11:55 pm
YYZ
-
BOI
19h 25m
1 stop
$376United Airlines
Sat, Aug 8 - Fri, Aug 14
Delta Logo
2:53 pm - 11:14 pm
BOI
-
YYZ
6h 21m
1 stop
Delta Logo
11:40 am - 10:19 pm
YYZ
-
BOI
12h 39m
1 stop
$420Delta
Sat, Aug 8 - Fri, Aug 14
United Airlines Logo
5:46 pm - 12:35 pm
BOI
-
YYZ
16h 49m
2 stops
United Airlines Logo
6:40 pm - 9:34 am
YYZ
-
BOI
16h 54m
1 stop
$462United Airlines
Sat, Aug 8 - Fri, Aug 14
Air Canada Logo
5:46 pm - 12:35 pm
BOI
-
YYZ
16h 49m
2 stops
Air Canada Logo
6:40 pm - 9:34 am
YYZ
-
BOI
16h 54m
1 stop
$472Air Canada
Sat, Jun 20 - Tue, Jun 23
Delta Logo
2:04 pm - 11:58 pm
BOI
-
YYZ
7h 54m
1 stop
Delta Logo
6:15 am - 12:54 pm
YYZ
-
BOI
8h 39m
1 stop
$517Delta
Wed, Jul 1 - Fri, Jul 10
United Airlines Logo
6:30 am - 4:10 pm
BOI
-
YYZ
7h 40m
1 stop
United Airlines Logo
11:00 am - 11:55 pm
YYZ
-
BOI
14h 55m
2 stops
$523United Airlines
Thu, Aug 6 - Mon, Aug 10
American Airlines Logo
3:04 pm - 12:35 pm
BOI
-
YYZ
19h 31m
1 stop
American Airlines Logo
7:15 pm - 2:14 pm
YYZ
-
BOI
20h 59m
1 stop
$559American Airlines
Thu, Aug 6 - Mon, Aug 10
American Airlines Logo
3:04 pm - 10:59 am
BOI
-
YYZ
17h 55m
1 stop
American Airlines Logo
7:15 pm - 2:14 pm
YYZ
-
BOI
20h 59m
1 stop
$581American Airlines
Thu, Aug 6 - Mon, Aug 10
WestJet Logo
5:59 pm - 5:15 pm
BOI
-
YHM
21h 16m
2 stops
WestJet Logo
6:10 pm - 3:18 pm
YHM
-
BOI
23h 08m
2 stops
$1,283WestJet
Sat, Aug 8 - Fri, Aug 14
WestJet Logo
5:59 pm - 5:15 pm
BOI
-
YHM
21h 16m
2 stops
WestJet Logo
6:10 pm - 10:30 pm
YHM
-
BOI
30h 20m
2 stops
$1,298WestJet
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.

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 February, when tickets cost $0 (return) on average. On the other hand, the most expensive months are April and August, when the average cost of round-trip tickets is $516 and $473 respectively.

Find deals

Good to know

Cheapest flight$170
Most popular time to fly and prices are also 18% lower on average.
Flight from Boise to Toronto

FAQs - booking Ontario flights

  • 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 from Boise to 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 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 from Boise to Ontario with an airline and back with another airline.

  • 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 from Boise to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying 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
DeltaOverall score based on 8452 reviews
8.5Crew
7.2Food
7.8Comfort
7.8Entertainment
8.1Boarding
Airline reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

10.0 Excellentangela, May 2026
LGA - PBI
Read more Delta reviews

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

WiFi didn’t work on two of four planes. Flight attendants were not overly friendly or welcoming. Planes were extremely slow to board and deplane.

Delta does a great job with entertainment and free wifi. I can still be in touch with my colleagues while in the air.

Aside from a completely packed plane, I really have no complaints.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

Some crew were unfriendly or in some cases just straight up rude.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

one staffer was frustrated (it happen); the flight was late and the pilot mentioned they'll make amend but the snacks were the same, other than that the aircraft was clean and everything went smooth, no complaints

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

ticket agent lady wás very helpful , she arranged wheel chair for my elderly mother

Entertainment kept turning itself off. Gave up on watching a movie.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Not United Airlines' fault. It's ORL airport's fault.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

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

Information on your arrival and departure airports

Boise (BOI)