$139 Find Cheap Flights from Puerto Rico to Ontario - Compare and Save

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Cheap Flights from Puerto Rico to Ontario

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

Recent round-trip flight deals from Puerto Rico to Ontario

Sun, Dec 20 - Tue, Jan 5
Frontier Logo
10:26 pm - 8:42 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
26h 16m2 stops Chicago O'Hare Intl Las Vegas Harry Reid Intl
Frontier Logo
2:26 pm - 2:03 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
31h 37m2 stops Las Vegas Harry Reid Intl Cleveland Hopkins Intl
$384Frontier
Fri, Dec 4 - Mon, Dec 7
Frontier Logo
11:13 am - 7:44 amSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
24h 31m2 stops Orlando Dallas/Fort Worth
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8:44 am - 10:37 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
21h 53m2 stops Las Vegas Harry Reid Intl Orlando
$409Frontier
Mon, Dec 7 - Mon, Dec 14
American Airlines Logo
5:17 pm - 9:42 amSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
20h 25m1 stop Dallas/Fort Worth
American Airlines Logo
10:30 pm - 9:12 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
18h 42m1 stop Charlotte Douglas
$504American Airlines
Mon, Dec 7 - Mon, Dec 14
American Airlines Logo
7:00 am - 10:07 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
19h 07m1 stop Charlotte Douglas
American Airlines Logo
11:59 pm - 6:03 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
14h 04m2 stops Dallas/Fort Worth Miami
$504American Airlines
Wed, Dec 16 - Thu, Dec 31
Frontier Logo
3:54 am - 6:15 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
18h 21m2 stops Miami Dallas/Fort Worth
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11:32 am - 11:45 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
20h 13m2 stops Denver Intl Houston George Bush Intcntl
$512Frontier
Thu, Dec 3 - Mon, Dec 7
Frontier Logo
4:07 pm - 9:37 amSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
21h 30m2 stops Orlando Dallas/Fort Worth
Frontier Logo
12:36 pm - 10:37 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
18h 01m2 stops Dallas/Fort Worth Orlando
$517Frontier
Thu, Dec 17 - Wed, Dec 30
Frontier Logo
5:35 am - 6:15 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
16h 40m2 stops Tampa Dallas/Fort Worth
Frontier Logo
10:48 pm - 11:44 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
20h 56m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson
$523Frontier
Wed, Dec 23 - Wed, Dec 30
American Airlines Logo
12:36 pm - 10:54 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
14h 18m1 stop Charlotte Douglas
American Airlines Logo
10:10 pm - 9:16 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
19h 06m1 stop Charlotte Douglas
$528American Airlines
Wed, Dec 23 - Wed, Dec 30
American Airlines Logo
2:50 pm - 10:54 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
12h 04m1 stop Charlotte Douglas
American Airlines Logo
5:44 am - 11:59 pmONT  Ontario-SJU San Juan Luis Munoz Marin Intl
14h 15m1 stop Dallas/Fort Worth
$530American Airlines
Mon, Dec 7 - Mon, Dec 14
United Airlines Logo
7:40 am - 5:36 pmSJU  San Juan Luis Munoz Marin Intl-ONT Ontario
13h 56m2 stops Houston George Bush Intcntl San Francisco
United Airlines Logo
6:40 pm - 11:50 amONT  Ontario-SJU San Juan Luis Munoz Marin Intl
13h 10m2 stops San Francisco Newark
$537United Airlines
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 is the cheapest month to fly to Ontario?

The cheapest month for flights to Ontario is January, where tickets cost $288 on average for return flights. On the other hand, the most expensive months are July and March, where the average cost of tickets from Puerto Rico is $1,150 and $889 respectively. For one-way flights, the best month to travel is May with an average price of $187.

How far in advance should I book a flight to Ontario?

To get a below average price, you should book around 11 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low season

August

Cheapest flight

$139
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from San Juan to Ontario

FAQs - booking Ontario flights

  • How far is Ontario Airport from central Ontario?

    Ontario Airport is 3 miles from the center of Ontario.

  • What is the name of Ontario’s airport?

    There is only 1 airport in Ontario, called Ontario Airport (ONT). It can also be referred to as Ontario or Ontario Intl.

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

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

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

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

  • How many direct flights to Ontario are there each week?

    Each week there are around 881 direct flights from within Puerto Rico to Ontario. The most common day for departures is Sunday, with 20% of flights taking off on this day.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

More options for your flight to Ontario