$141 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 5/12. 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

Sat, Apr 18 - Tue, Apr 21
American Airlines Logo
1:29 pm - 12:35 pm
BOI
-
YYZ
21h 06m
1 stop
American Airlines Logo
7:15 pm - 12:49 pm
YYZ
-
BOI
19h 34m
1 stop
$342American Airlines
Tue, Apr 21 - Fri, Apr 24
Delta Logo
11:35 pm - 10:19 am
BOI
-
YYZ
8h 44m
1 stop
Delta Logo
6:15 am - 1:07 pm
YYZ
-
BOI
8h 52m
1 stop
$344Delta
Sat, Apr 18 - Tue, Apr 21
American Airlines Logo
6:26 pm - 10:53 am
BOI
-
YYZ
14h 27m
2 stops
American Airlines Logo
6:15 pm - 12:51 pm
YYZ
-
BOI
20h 36m
1 stop
$352American Airlines
Tue, Apr 21 - Wed, Apr 29
Delta Logo
8:30 am - 11:59 pm
BOI
-
YYZ
13h 29m
2 stops
Delta Logo
12:22 pm - 8:29 pm
YYZ
-
BOI
10h 07m
1 stop
$353Delta
Wed, Jun 3 - Mon, Jun 8
Delta Logo
9:18 pm - 11:36 am
BOI
-
YYZ
12h 18m
2 stops
Delta Logo
6:30 am - 10:58 am
YYZ
-
BOI
6h 28m
1 stop
$354Delta
Sat, Apr 18 - Tue, Apr 21
Delta Logo
10:45 am - 11:10 pm
BOI
-
YYZ
10h 25m
2 stops
Delta Logo
2:15 pm - 9:56 pm
YYZ
-
BOI
9h 41m
2 stops
$359Delta
Tue, Apr 28 - Wed, Apr 29
Alaska Airlines Logo
6:00 am - 3:45 pm
BOI
-
YYZ
7h 45m
1 stop
Alaska Airlines Logo
4:55 pm - 11:02 pm
YYZ
-
BOI
8h 07m
1 stop
$387Alaska Airlines
Mon, Jun 1 - Mon, Jun 22
WestJet Logo
6:00 pm - 6:55 am
BOI
-
YYZ
10h 55m
2 stops
WestJet Logo
12:00 pm - 10:28 pm
YYZ
-
BOI
12h 28m
2 stops
$394WestJet
Sat, Aug 15 - Mon, Aug 24
United Airlines Logo
7:01 pm - 8:16 am
BOI
-
YUL
11h 15m
1 stop
United Airlines Logo
6:35 pm - 11:00 am
YUL
-
BOI
18h 25m
1 stop
$594United Airlines
Sat, Aug 15 - Mon, Aug 24
United Airlines Logo
5:00 am - 5:30 pm
BOI
-
YUL
10h 30m
2 stops
United Airlines Logo
6:35 pm - 11:00 am
YUL
-
BOI
18h 25m
1 stop
$603United 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 Region of 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 Region of Ontario departing in April.

Good to know

Low seasonApril
Cheapest flight$141
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 14% increase in price.
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 8368 reviews
8.1Boarding
7.9Comfort
7.8Entertainment
7.2Food
8.5Crew
Airline reviews

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

10.0 ExcellentViraj, Apr 2026
JFK - SFO
Read more Delta reviews

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

On the return flight, flight attendant Britt went out of her way to inform passengers that several of us had tight connections.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

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.

During the flight, the only refreshments provided were crackers and soft drinks; no substantial food was offered despite the international route. Furthermore, our initial flight was delayed, causing us to miss the connecting flight in Atlanta. The airline did not hold the connection, and we were informed that the next available flight is not for another 24 hours. While I am aware of alternative options via JetBlue, they operate out of JFK, which is not a viable solution for us as a resident of New Jersey.

Arlene was a great flight attendant. I also liked how one of the other flight attendants gave us a heads up about snacks and asked everyone to remove their headphones when it was their turn to order. Good idea.

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

The flight was delayed 90 minutes The Gate was wrong The Restroom on Aircraft was not clean There was a half used water bottle in my seat

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

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.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Flight was good but there are way to many announcements for credit cards etc.

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

Information on your arrival and departure airports