Cheap Flight Tickets from Ontario (ONT) to San Juan (SJU), Starting at $481

Good to Know: Cheapest and Fastest ONT - SJU Flights

Useful information for finding best airline tickets from Ontario International to Luis Munoz Marin International on your next trip.

Cheapest Round Trip Flight

$511

UA United Airlines • 1 stop • 15h 38m

Oct 01 – Oct 06

The cheapest round trip flight from Ontario to San Juan (ONT-SJU-ONT) is currently $511

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Cheapest One way Flight

$481

AS Alaska Airlines • 2 stops • 47h 10m

Sep 21

The cheapest one way flight from Ontario to San Juan (ONT-SJU) is currently $481

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Fastest Flight

15h 38m

The fastest nonstop flight from Ontario to San Juan (ONT-SJU) takes 15h 38m

Top Airlines Flying from Ontario to San Juan

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Southwest Airlines-WN

Southwest Airlines

Latest Flight Deals from Ontario (ONT) to San Juan (SJU)

Compare and book low fare round-trip air tickets from Ontario to San Juan. Ideal for travelers with confirmed return itineraries.

Oct 01 - Oct 06, Economy
UA
Ontario → San Juan
15h 38m
5:00 AM - 5:38 PM • 1 stop
UA
Ontario → San Juan
15h 58m
2:00 PM - 8:58 PM • 1 stop
$511
United Airlines
Oct 01 - Oct 06, Economy
UA
Ontario → San Juan
53h 33m
9:25 AM - 8:38 PM • 2 stops
UA
Ontario → San Juan
15h 58m
2:00 PM - 8:58 PM • 1 stop
$630
United Airlines
Oct 01 - Oct 06, Economy
UA
Ontario → San Juan
50h 42m
6:00 AM - 3:42 PM • 1 stop
UA
Ontario → San Juan
15h 58m
2:00 PM - 8:58 PM • 1 stop
$677
United Airlines
Oct 01 - Oct 06, Economy
UA
Ontario → San Juan
45h 17m
9:25 AM - 3:42 PM • 2 stops
UA
Ontario → San Juan
15h 58m
2:00 PM - 8:58 PM • 1 stop
$677
United Airlines
Oct 01 - Oct 06, Economy
DL
Ontario → San Juan
20h 45m
10:00 PM - 1:45 PM • 1 stop
DL
Ontario → San Juan
26h 50m
7:15 AM - 8:25 PM • 1 stop
$2190
Delta Airlines
Oct 01 - Oct 06, Economy
DL
Ontario → San Juan
20h 14m
7:05 AM - 10:19 PM • 1 stop
DL
Ontario → San Juan
26h 50m
7:15 AM - 8:25 PM • 1 stop
$2190
Delta Airlines

Fly from Ontario to San Juan with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Ontario to San Juan? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Ontario to San Juan Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to SJU?
The most popular airline flying from Ontario to San Juan are
Can I fly from ONT to SJU non-stop?
NO
Which airlines fly nonstop between Ontario and San Juan?
The non-stop flights between Ontario and San Juan are .
What’s the earliest departure time from ONT to SJU Airport?
The earliest flight leaves ONT at 5:00 am and lands in SJU - Luis Munoz Marin International
What are the airports in San Juan?
SJU
Can I make changes to my Ontario to San Juan flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to SJU?
Read the fare rules of the Ontario to San Juan air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and San Juan?
operate flights between Ontario and San Juan
How long does a flight from Ontario to San Juan take?
It takes approximately 7 hour to fly non-stop from ONT to SJU, which is 3340.73 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to San Juan (SJU) ?
In the past couple of days, the cheapest tickets to SJU from ONT were found on AS : USD 510
Do I need a passport to fly between ONT and SJU?
Yes
What’s the latest departure time from ONT to SJU ?
The last flight leaves ONT at 10:00 pm

Ontario (ONT) to San Juan (SJU): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport Luis Munoz Marin International , San Juan, PR
Distance 3341 miles

More Flight Options for Ontario (ONT) and San Juan (SJU)

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