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.

$42 International Flights to Ontario

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Flight Deals

Book Cheap International Flights Deals to Ontario

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip international flight deals to Ontario

Tue, Oct 13 - Tue, Oct 20

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$275Volaris

Thu, Nov 19 - Thu, Nov 26

9:02 pm - 10:15 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 13mnonstop

6:37 pm - 11:41 pmONT Ontario-GDL Guadalajara Miguel Hidal

3h 04mnonstop

$279Volaris

Tue, Oct 13 - Tue, Oct 20

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$280Volaris

Tue, Oct 13 - Wed, Oct 14

7:00 am - 4:48 pmMEX Mexico City Benito Juarez-ONT Ontario

10h 48m1 stop Dallas/Fort Worth

11:26 am - 9:45 pmONT Ontario-MEX Mexico City Benito Juarez

9h 19m1 stop Las Vegas Harry Reid Intl

$310Frontier

Wed, Nov 18 - Wed, Nov 25

7:00 am - 4:38 pmMEX Mexico City Benito Juarez-ONT Ontario

11h 38m1 stop Dallas/Fort Worth

5:01 am - 5:00 pmONT Ontario-MEX Mexico City Benito Juarez

9h 59m1 stop Denver Intl

$332Frontier

Tue, Oct 6 - Tue, Oct 20

6:00 am - 8:58 pmYYC Calgary-ONT Ontario

15h 58m1 stop Denver Intl

5:00 am - 9:48 pmONT Ontario-YYC Calgary

15h 48m1 stop Denver Intl

$347United Airlines

Wed, Dec 2 - Wed, Dec 9

9:50 am - 5:31 pmYYC Calgary-ONT Ontario

9h 41m2 stops Phoenix Sky Harbor Intl Las Vegas Harry Reid Intl

7:26 pm - 10:25 pmONT Ontario-YYC Calgary

24h 59m1 stop San Francisco

$349Multiple Airlines

Wed, Oct 14 - Wed, Oct 21

12:00 pm - 11:05 pmMEX Mexico City Benito Juarez-ONT Ontario

12h 05m1 stop Guadalajara Miguel Hidal

11:26 am - 9:45 pmONT Ontario-MEX Mexico City Benito Juarez

9h 19m1 stop Las Vegas Harry Reid Intl

$361Multiple Airlines

Sat, Oct 10 - Thu, Oct 22

3:10 pm - 9:45 pmSJO San José Juan Santamaria Intl-ONT Ontario

7h 35m1 stop San Salvador El Salvador Intl

11:35 pm - 8:45 amONT Ontario-SJO San José Juan Santamaria Intl

8h 10m1 stop San Salvador El Salvador Intl

$528Avianca

Wed, Nov 25 - Tue, Jan 12

7:00 am - 9:40 pmSAL San Salvador El Salvador Intl-ONT Ontario

16h 40m1 stop Houston George Bush Intcntl

6:00 am - 9:19 pmONT Ontario-SAL San Salvador El Salvador Intl

13h 19m1 stop Houston George Bush Intcntl

$563United Airlines

Recent last minute international flight deals to Ontario

Fri, Sep 25 - Mon, Oct 12

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$331Volaris

Fri, Sep 25 - Sun, Oct 4

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$332Volaris

Fri, Sep 25 - Sun, Oct 4

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$335Volaris

Thu, Sep 24 - Tue, Sep 29

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$372Frontier

Tue, Sep 22 - Sun, Oct 4

9:30 am - 8:53 pmYYC Calgary-ONT Ontario

12h 23m1 stop Denver Intl

5:00 am - 9:48 pmONT Ontario-YYC Calgary

15h 48m1 stop Denver Intl

$428United Airlines

Tue, Sep 22 - Mon, Sep 28

7:45 am - 4:35 pmYYC Calgary-ONT Ontario

9h 50m1 stop Salt Lake City

5:15 pm - 11:06 pmONT Ontario-YYC Calgary

4h 51m1 stop Salt Lake City

$480Delta

Tue, Sep 22 - Tue, Sep 29

1:27 pm - 8:53 pmYYC Calgary-ONT Ontario

8h 26m1 stop Denver Intl

5:00 am - 9:48 pmONT Ontario-YYC Calgary

15h 48m1 stop Denver Intl

$482United Airlines

Fri, Sep 25 - Mon, Sep 28

6:33 am - 5:18 pmYYC Calgary-ONT Ontario

11h 45m2 stops Seattle/Tacoma Intl Portland

3:14 pm - 10:46 pmONT Ontario-YYC Calgary

6h 32m1 stop Seattle/Tacoma Intl

$486Alaska Airlines

Thu, Sep 24 - Tue, Sep 29

6:33 am - 5:18 pmYYC Calgary-ONT Ontario

11h 45m2 stops Seattle/Tacoma Intl Portland

3:14 pm - 10:46 pmONT Ontario-YYC Calgary

6h 32m1 stop Seattle/Tacoma Intl

$488Alaska Airlines

Fri, Sep 25 - Sun, Oct 25

5:55 am - 10:40 pmDUB Dublin-ONT Ontario

24h 45m2 stops Amsterdam Schiphol Seattle/Tacoma Intl

6:00 am - 2:25 pmONT Ontario-DUB Dublin

25h 25m2 stops Salt Lake City Paris Charles de Gaulle

$753Delta

Recent direct international flight deals to Ontario

Tue, Oct 13 - Tue, Oct 20

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$275Volaris

Thu, Nov 19 - Thu, Nov 26

9:02 pm - 10:15 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 13mnonstop

6:37 pm - 11:41 pmONT Ontario-GDL Guadalajara Miguel Hidal

3h 04mnonstop

$279Volaris

Tue, Oct 13 - Tue, Oct 20

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$280Volaris

Tue, Nov 17 - Tue, Nov 24

9:02 pm - 10:15 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 13mnonstop

6:37 pm - 11:41 pmONT Ontario-GDL Guadalajara Miguel Hidal

3h 04mnonstop

$281Volaris

Thu, Oct 8 - Sun, Oct 18

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$283Volaris

Wed, Oct 14 - Mon, Oct 19

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$285Volaris

Wed, Oct 7 - Wed, Oct 14

8:59 pm - 11:05 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 06mnonstop

9:36 pm - 1:39 amONT Ontario-GDL Guadalajara Miguel Hidal

3h 03mnonstop

$286Volaris

Tue, Nov 17 - Tue, Nov 24

9:02 pm - 10:15 pmGDL Guadalajara Miguel Hidal-ONT Ontario

3h 13mnonstop

6:37 pm - 11:41 pmONT Ontario-GDL Guadalajara Miguel Hidal

3h 04mnonstop

$293Volaris

Thu, Oct 15 - Sat, Oct 31

5:35 pm - 9:45 pmSAL San Salvador El Salvador Intl-ONT Ontario

5h 10mnonstop

11:45 pm - 5:30 amONT Ontario-SAL San Salvador El Salvador Intl

4h 45mnonstop

$666Avianca

Sat, Sep 26 - Sat, Oct 3

5:35 pm - 9:45 pmSAL San Salvador El Salvador Intl-ONT Ontario

5h 10mnonstop

11:35 pm - 5:20 amONT Ontario-SAL San Salvador El Salvador Intl

4h 45mnonstop

$674Avianca

Booking Insights

KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends for flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What are the most popular airlines flying to Ontario?

The most popular airline among KAYAK users flying to Ontario is Asiana Airlines, followed by AIR PREMIA and Philippine Airlines.

Low season	January
High season	October
Cheapest flight	$42

Best time to beat the crowds with an average 2% drop in price.

Most popular time to fly and prices are also 17% lower on average.

Flight from San Francisco to Ontario

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.