ONT

$94 Find Cheap Flights from Idaho to Ontario - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 8/25. 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

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Useful Info
Flight Deals

Cheap Flights from Idaho to Ontario

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

Tue, Sep 1 - Sat, Sep 12
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:50 pm - 7:45 pm
ONT
-
BOI
1h 55mnonstop
$177Alaska Airlines
Tue, Sep 29 - Tue, Oct 13
Alaska Airlines Logo
3:02 pm - 4:10 pm
BOI
-
ONT
2h 08mnonstop
Alaska Airlines Logo
4:42 pm - 7:43 pm
ONT
-
BOI
2h 01mnonstop
$177Alaska Airlines
Tue, Sep 1 - Sat, Sep 12
Delta Logo
6:45 pm - 10:23 pm
BOI
-
ONT
4h 38m
1 stop
Delta Logo
1:04 pm - 6:53 pm
ONT
-
BOI
4h 49m
1 stop
$187Delta
Wed, Oct 14 - Wed, Oct 21
Southwest Logo
6:35 am - 10:45 am
BOI
-
ONT
5h 10m
1 stop
Southwest Logo
6:40 am - 1:45 pm
ONT
-
BOI
6h 05m
1 stop
$187Southwest
Sat, Sep 26 - Tue, Sep 29
Southwest Logo
3:10 pm - 8:05 pm
BOI
-
ONT
5h 55m
1 stop
Southwest Logo
5:45 am - 10:50 am
ONT
-
BOI
4h 05m
1 stop
$187Southwest
Wed, Oct 21 - Sun, Oct 25
Delta Logo
11:32 am - 4:23 pm
BOI
-
ONT
5h 51m
1 stop
Delta Logo
6:00 am - 10:42 am
ONT
-
BOI
3h 42m
1 stop
$197Delta
Tue, Sep 29 - Wed, Oct 21
American Airlines Logo
1:52 pm - 6:17 pm
BOI
-
ONT
5h 25m
1 stop
American Airlines Logo
4:29 pm - 10:50 pm
ONT
-
BOI
5h 21m
1 stop
$197American Airlines
Thu, Aug 27 - Mon, Aug 31
Frontier Logo
12:24 pm - 11:50 pm
BOI
-
ONT
12h 26m
1 stop
Frontier Logo
10:49 am - 12:29 pm
ONT
-
BOI
24h 40m
1 stop
$205Frontier
Sat, Oct 17 - Sun, Nov 1
American Airlines Logo
2:02 pm - 6:43 pm
BOI
-
ONT
5h 41m
1 stop
American Airlines Logo
4:25 pm - 11:59 pm
ONT
-
BOI
6h 34m
1 stop
$207American Airlines
Thu, Sep 3 - Tue, Sep 8
Frontier Logo
12:24 pm - 11:50 pm
BOI
-
ONT
12h 26m
1 stop
Frontier Logo
7:56 pm - 1:55 pm
ONT
-
BOI
40h 59m
2 stops
$243Frontier
Useful Info

Good to know

Low season

January

Cheapest flight

$94
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Boise to Ontario

FAQs for booking flights from Idaho to Ontario

  • How does KAYAK find such low prices on flights from Idaho 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 Idaho to Ontario.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Idaho 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 Idaho 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 Idaho with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho 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 Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

Ontario (ONT)