$32 Find deals on international flights 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 to Ontario departing on 3/9. 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

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Flight Deals

Book Cheap International Flights Deals to Ontario

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

Thu, Mar 12 - Tue, Mar 17
Volaris Logo
4:06 pm - 6:44 pm
SJD
-
ONT
2h 38mnonstop
Volaris Logo
12:50 pm - 3:12 pm
ONT
-
SJD
2h 22mnonstop
$171Volaris
Thu, Mar 5 - Sat, Mar 7
Volaris Logo
5:06 pm - 6:44 pm
SJD
-
ONT
2h 38mnonstop
Volaris Logo
12:50 pm - 4:12 pm
ONT
-
SJD
2h 22mnonstop
$180Volaris
Wed, Apr 1 - Wed, Apr 8
Multiple Airlines Logo
4:15 pm - 9:00 pm
YYC
-
ONT
5h 45m
1 stop
Multiple Airlines Logo
10:03 pm - 12:02 pm
ONT
-
YYC
12h 59m
1 stop
$258Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
Multiple Airlines Logo
8:25 am - 3:57 pm
YYC
-
ONT
8h 32m
1 stop
Multiple Airlines Logo
10:03 pm - 8:17 pm
ONT
-
YYC
21h 14m
2 stops
$259Multiple Airlines
Fri, Mar 13 - Mon, Mar 16
United Airlines Logo
1:20 pm - 5:38 pm
SJD
-
ONT
28h 18m
1 stop
United Airlines Logo
11:59 pm - 10:08 am
ONT
-
SJD
10h 09m
1 stop
$264United Airlines
Wed, Apr 15 - Sun, Apr 19
United Airlines Logo
2:30 pm - 9:50 pm
GDL
-
ONT
8h 20m
1 stop
United Airlines Logo
1:27 pm - 1:34 pm
ONT
-
GDL
23h 07m
2 stops
$264United Airlines
Fri, Apr 10 - Sun, Apr 12
Frontier Logo
9:47 am - 6:45 pm
GUA
-
ONT
9h 58m
1 stop
Frontier Logo
7:40 pm - 8:30 am
ONT
-
GUA
11h 50m
1 stop
$292Frontier
Wed, Mar 18 - Sun, Mar 22
American Airlines Logo
6:40 am - 11:59 pm
GDL
-
ONT
18h 19m
1 stop
American Airlines Logo
9:53 am - 1:12 pm
ONT
-
GDL
26h 19m
1 stop
$294American Airlines
Fri, Mar 6 - Sun, Mar 8
American Airlines Logo
2:52 pm - 8:48 am
GDL
-
ONT
19h 56m
1 stop
American Airlines Logo
11:58 pm - 12:12 pm
ONT
-
GDL
11h 14m
1 stop
$295American Airlines
Fri, Apr 3 - Thu, Apr 9
Frontier Logo
9:47 am - 6:45 pm
GUA
-
ONT
9h 58m
1 stop
Frontier Logo
7:40 pm - 8:30 am
ONT
-
GUA
11h 50m
1 stop
$320Frontier
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$32
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 6% increase in price.
Flight from Denver to Ontario

FAQs for booking Worldwide to Ontario flights

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

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

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

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Worldwide 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 Worldwide 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)