Menu

Cheap flights from Ontario (ONT) to San Juan (SJU)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Ontario to San Juan are usually found in September or April, booked 55 days in advance, depart on a Sunday or Tuesday and return on a Wednesday

How to find the cheapest flight from
Ontario (ONT) to San Juan (SJU)

ONT - PR1
Price
$310 - $700
PR1
Temperature
82.4 - 89.6 °F
PR1
Rainfall
1.3 - 5.8 inches

Popular in

December

High demand for flights, 39% potential price rise

Cheapest in

September

Best time to find cheap flights, 27% potential price drop

Round-trip from

$310

From Ontario to San Juan

One-way from

$134

One-way flight from Ontario to San Juan

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Ontario to San Juan?

Users have found that flying from Ontario to San Juan on a Sunday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

To save on the cost of your flight from Ontario to San Juan, book at least 19 days before your planned departure. Booking around this time can save you about 7% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $262 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $281.

What is the cheapest month to fly from Ontario to San Juan?

August is one of the best times of the year to fly to San Juan from Ontario. Prices for August average $313 per person but you can even find prices for as low as $121. The most expensive prices can be found in the month of December. Opting for a August flight can save you 71% on your journey compared to booking in August

When is the cheapest time to fly from Ontario to San Juan (ONT - PR1)?

It’s optimal to fly from Ontario to San Juan in the afternoon. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the morning.

Cheap flights from Ontario to San Juan in January, February 2021

The best prices found for ONT to SJU flights for January, February
11 Feb - 14 Feb
$199pp
ONT
Ontario
Frontier
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
 
1 STOP
ONT
Ontario
11 Feb - 15 Feb
$201pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
 
1 STOP
ONT
Ontario
7 Feb - 17 Feb
$213pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
 
1 STOP
ONT
Ontario

Ontario to San Juan 2021 flight deals

Cheap flights to San Juan from Ontario found for this year
11 Feb - 14 Feb
$199pp
ONT
Ontario
Frontier
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
 
1 STOP
ONT
Ontario
11 Feb - 15 Feb
$201pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Multiple Airlines
 
1 STOP
ONT
Ontario
7 Feb - 17 Feb
$213pp
ONT
Ontario
Multiple Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
Frontier
 
1 STOP
ONT
Ontario

Last minute flights from Ontario to San Juan

Late deals on round-trip flights to San Juan from Ontario, departing today and this week
27 Jan - 1 Feb
$275pp
ONT
Ontario
American Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
American Airlines
   
2 STOPS
ONT
Ontario
27 Jan - 1 Feb
$411pp
ONT
Ontario
American Airlines
 
1 STOP
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
American Airlines
   
2 STOPS
ONT
Ontario
27 Jan - 24 Feb
$451pp
ONT
Ontario
United Airlines
   
2 STOPS
SJU
San Juan Luis Munoz Marin Intl
SJU
San Juan Luis Munoz Marin Intl
United Airlines
   
2 STOPS
ONT
Ontario

One-way flights to San Juan from Ontario

The cheapest one-way flights from Ontario to San Juan
3:39 pm - 11:48 am
Frontier
2 Stops
40h 09m
ONT - SJU
Frontier
$134
CheapFlights
1:30 am - 2:32 pm
American Airlines
1 Stop
9h 02m
ONT - SJU
American Airlines
6:10 pm - 9:15 am
Delta
1 Stop
11h 05m
ONT - SJU
Delta
$273
Delta

Related info for your journey

Useful info, stats and facts about Ontario to San Juan flights.

Flight FAQs

From Ontario to San Juan

Are flight prices decreasing from Ontario to San Juan due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Ontario and San Juan for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Ontario to San Juan to control the spread of COVID-19?

Delta is one of the many airlines that have implemented additional safety measures to control the spread of COVID-19. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially distanced seating (for a limited time) will work towards keeping travelers safer while flying from Ontario to San Juan. Policies will vary by airline.

Which airlines flying from Ontario to San Juan have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Ontario to San Juan that may be offering flexible cancellation policies are American Airlines, United Airlines, and Delta. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Ontario to San Juan for under $200 on Cheapflights?

Yes, there are multiple flights from Ontario to San Juan for under $200. The cheapest flight booked recently is on Frontier for just $199, but on average you can expect to pay $242.

Are there nonstop flights from Ontario to San Juan for under $200 on Cheapflights?

There are no nonstop flights from Ontario to San Juan, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Ontario to San Juan for under $300?

There are currently 4+ open flights from Ontario to San Juan within the next 7 days for less than $300.

Is Ontario weather warmer or cooler than San Juan?

With an average temperature of 95 °F, peak weather can be found in July. As a traveler, expect to see changes in flight prices during that period. The temperatures in San Juan are colder than in Ontario.

How long is the flight from Ontario to San Juan?

A quick flight from Ontario to San Juan can take about 8h 41m. American Airlines provides one of the quickest options available for as low as $307. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

What are the cheapest airlines flying from Ontario to San Juan round-trip?

Our cheapest airline available from Ontario to San Juan is Frontier. Our recent data shows that you can find tickets from as low as $199 on this airline. An additional option worth looking into is American Airlines, starting at $268. Frontier is priced at 53% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Ontario to San Juan one-way?

For one-way options, check prices for Frontier. According to our data, you can fly for as low as $134. Users have also found prices from $138 and $273 on Frontier and American Airlines, respectively.

Alternative routes for Ontario to San Juan

Destination information for San Juan

Things to know before you go. Useful info for your trip from Ontario to San Juan
Today's exchange rate
$1 = $1.00
Average temperature for January in San Juan
82.4 °F
Avg rainfall for January in San Juan
3.6 ″

Airports servicing Ontario

Airports servicing San Juan

San Juan Isla Grande (SIG)

Top 5 airlines flying from Ontario to San Juan

The chart below displays the airlines Cheapflights users traveling from Ontario to San Juan choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Frontier
$158 $314 No cancel fee 62%
Delta
$177 $412 No cancel fee N/A
JetBlue
$147 $418 No cancel fee 62%
United Airlines
$147 $454 No cancel fee 69%
American Airlines
$152 $500 No cancel fee 71%
Home Caribbean Puerto Rico San Juan Cheap flights from Ontario to San Juan