$28 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 4/15. 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 cheap international flights to Ontario

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$173
Volaris
Tue 12/9Thu 12/11
SJD - ONT • Non-stop
Cheapest one-way
$131
Overall average: $218
Volaris
Wed 4/15
SJD - ONT • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Useful Info
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

Tue, Dec 9 - Thu, Dec 11
Volaris Logo
5:06 pm - 6:44 pmSJD-ONT
2h 38mnonstop
Volaris Logo
12:50 pm - 4:12 pmONT-SJD
2h 22mnonstop
$173Volaris
Find Deal
Tue, Dec 9 - Thu, Dec 11
Volaris Logo
3:36 pm - 10:52 pmSJD-ONT
8h 16m1 stop
Volaris Logo
12:50 pm - 4:12 pmONT-SJD
2h 22mnonstop
$221Volaris
Find Deal
Mon, Feb 2 - Wed, Mar 4
United Airlines Logo
5:45 am - 10:53 pmGDL-ONT
19h 08m2 stops
United Airlines Logo
8:00 am - 10:35 pmONT-GDL
12h 35m1 stop
$249United Airlines
Find Deal
Thu, Feb 5 - Thu, Feb 12
United Airlines Logo
5:45 am - 10:53 pmGDL-ONT
19h 08m2 stops
United Airlines Logo
6:00 am - 10:35 pmONT-GDL
14h 35m1 stop
$250United Airlines
Find Deal
Mon, Feb 16 - Sun, Feb 22
Frontier Logo
9:35 pm - 10:52 pmGDL-ONT
3h 17mnonstop
Frontier Logo
12:42 am - 5:40 amONT-GDL
2h 58mnonstop
$256Frontier
Find Deal
Fri, Feb 13 - Tue, Feb 24
Frontier Logo
9:35 pm - 10:52 pmGDL-ONT
3h 17mnonstop
Frontier Logo
11:34 pm - 4:32 amONT-GDL
2h 58mnonstop
$257Frontier
Find Deal
Sat, Feb 14 - Sat, Feb 28
American Airlines Logo
7:31 am - 4:25 pmGDL-ONT
10h 54m1 stop
American Airlines Logo
9:53 am - 9:58 pmONT-GDL
10h 05m1 stop
$258American Airlines
Find Deal
Mon, Dec 15 - Wed, Dec 24
Multiple Airlines Logo
7:55 am - 11:31 pmYYC-ONT
16h 36m2 stops
Multiple Airlines Logo
6:00 pm - 12:01 pmONT-YYC
17h 01m1 stop
$286Multiple Airlines
Find Deal
Fri, Dec 12 - Wed, Apr 22
American Airlines Logo
3:38 pm - 8:53 amSJO-ONT
19h 15m2 stops
American Airlines Logo
11:59 pm - 9:55 pmONT-SJO
20h 56m1 stop
$287American Airlines
Find Deal
Tue, Dec 9 - Fri, Jan 9
Multiple Airlines Logo
9:55 am - 8:55 pmGUA-ONT
13h 00m1 stop
Multiple Airlines Logo
8:31 am - 3:26 pmONT-GUA
28h 55m1 stop
$293Multiple Airlines
Find Deal
Useful Info

Good to know

Low seasonFebruary
Cheapest flight$29
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Houston George Bush Airport 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)