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  4. Ontario, CA - San Juan

Cheap Flights from Ontario, CA (ONT) to San Juan (SJU)

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Discover the cheapest flights from Ontario, CA to San Juan
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Fri, Apr 18 - Tue, Apr 22
Frontier Airlines
Frontier Airlines2 stops
ONT - SJU
Frontier Airlines
Frontier Airlines2 stops
SJU - ONT
$263$258
Prime price per passenger
Mon, May 12 - Fri, May 16
Frontier Airlines
Frontier Airlines1 stop
ONT - SJU
Spirit Airlines
Spirit Airlines1 stop
SJU - ONT
$275$267
Prime price per passenger
Sat, May 3 - Thu, May 8
American Airlines
American Airlines1 stop
ONT - SJU
Spirit Airlines
Spirit Airlines1 stop
SJU - ONT
$302$287
Prime price per passenger
Wed, May 28 - Tue, Jun 3
American Airlines
American Airlines2 stops
ONT - SJU
American Airlines
American Airlines2 stops
SJU - ONT
$405$393
Prime price per passenger
Fri, Jun 6 - Sat, Jun 7
American Airlines
American Airlines1 stop
ONT - SJU
American Airlines
American Airlines1 stop
SJU - ONT
$535$525
Prime price per passenger
Tue, Jun 17 - Tue, Jun 24
American Airlines
American Airlines1 stop
ONT - SJU
American Airlines
American Airlines1 stop
SJU - ONT
$660$647
Prime price per passenger
Tue, May 6
Frontier Airlines
Frontier Airlines1 stop
ONT - SJU
$111
Prime price per passenger
Sun, May 11
Frontier Airlines
Frontier Airlines1 stop
ONT - SJU
$131$130
Prime price per passenger
Fri, Apr 25
Frontier Airlines
Frontier Airlines2 stops
ONT - SJU
$143$140
Prime price per passenger
Wed, Jun 25
American Airlines
American Airlines2 stops
ONT - SJU
$233$226
Prime price per passenger
Fri, May 30
American Airlines
American Airlines1 stop
ONT - SJU
$233$228
Prime price per passenger
Fri, Jun 6
American Airlines
American Airlines1 stop
ONT - SJU
$233$228
Prime price per passenger
Prices shown below were available within the past 3 days for the period specified and should not be considered the final price offered. Please note that availability and prices are subject to change.

Cheapest time to fly from Ontario, CA to San Juan

Flexible with dates? We find the best price for the week of the day you select *Prices may vary after you search.
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week: Apr 7 - Apr 13
Flights from just $214
$214
$222
$258
$287
$285
$267
$350
$393
$424
$488
$519
$512
AprilMayJune
Cheapest flight$110The best price for flights from Ontario, CA to San Juan offered by eDreams, which have been found by our customers in the last 3 days
Departure AirportOntario InternationalOntario International is where you'll take off when flying from Ontario, CA to San Juan
Arrival AirportLuis Munoz Marin InternationalYou'll land at Luis Munoz Marin International when flying from Ontario, CA to San Juan
Peak seasonDecemberDecember is the busiest time to fly from Ontario, CA to San Juan according to search data results from our customers
Best time to bookJuneJune is one of the most frequent times to fly to San Juan from Ontario, CA according to real data from our customers

Route information

Distance: 3332 miles
Ontario, CA airports
Ontario International (ONT)How far from city center: 2 miles
San Juan airports
Luis Munoz Marin International (SJU)How far from city center: 7 miles

Are you searching for flights from Ontario, CA to San Juan?

Are you planning to travel to San Juan for vacations, business or family visits? eDreams offers you the cheapest flights and best deals departing from Ontario, CA. With our fast search engine you will get a large selection of airfares from standard and low cost airlines worldwide and easily book your tickets for this route. If you are flexible we help you identify the cheapest day to fly to San Juan and if you need to leave soon you can check our most convenient last minute fares. Read all the useful information about your next destination and proceed to the reservation, indicating your flight dates and completing your travel booking with hotels and car rental!

Frequently asked questions about flights from Ontario, CA to San Juan

What are the benefits of booking flexible flight tickets?
Using the flexible flight ticket, you're guaranteed a refund or a rebooking option (without fees) in case of flight cancellations when travelling to Puerto Rico. At eDreams have you covered!
For flights from Ontario, CA to San Juan, how can I find the cheapest price?
The cheapest price for a flight from Ontario, CA to San Juan is $111. At eDreams we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
When booking, when is the best time to get the best prices for flights from Ontario, CA to San Juan?
The most popular months to book a trip from Ontario, CA to San Juan are June, January and December, based on the searches of our customers.
When is the best time to travel from Ontario, CA to San Juan?
The best time of the year to visit San Juan depends on lots of personal preferences, especially the price. Regarding popularity, December is the best month to fly to San Juan from Ontario, CA in terms of searches from our customers, followed by February and July. If you prefer to avoid the busy season and get away from the crowds May, August and September are the months with fewer searches for Ontario, CA - San Juan.
How is the weather in San Juan compared to Ontario, CA?
While in Ontario, CA the temperatures can reach an average of 36.7 ºC in summer, with precipitation levels up to 1.4 mm ,San Juan's temperatures can go up to 31.42 ºC during the hot season, with 9 mm average of rain rate . In winter, however, weather indicators show around 20.91 ºC in San Juan, compared to the -0.46 ºC average degrees reported in Ontario, CA. During the winter period, Ontario, CA can register 3 mm precipitation, while San Juan have an average of 9 mm rain level.
Which airports have flights between Ontario, CA and San Juan?

The main route from Ontario, CA to San Juan is: Ontario International (ONT) to Luis Munoz Marin International (SJU). The following airlines fly this route:

American Airlines.

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