$217+ Cheap flights from Puerto Rico to Ontario (ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ONT
Oct 3 — Oct 101
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Puerto Rico to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Puerto Rico to Ontario
Cheapest
Best
Last-minute
One-way
Cheapest flights from Puerto Rico to OntarioExplore the most affordable flight options available from Puerto Rico to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2026.
Explore the most affordable flight options available from Puerto Rico to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 3, 2026.
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/261:00 am -
2 stops14h 46m
Sun 10/46:00 am -
1 stop11h 38m
Deal found 8/30![United Airlines logo]()
$468
This Southwest deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:00 am -
2 stops12h 00m
Sun 10/45:40 pm -
2 stops12h 40m
Deal found 8/30![Southwest logo]()
$471
This Southwest deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/214:20 pm -
2 stops11h 35m
Mon 1/48:45 pm -
2 stops10h 55m
Deal found 8/31![Southwest logo]()
$474
This American Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:58 pm -
2 stops21h 31m
Tue 9/221:04 pm -
2 stops18h 56m
Deal found 8/30![American Airlines logo]()
$501
This American Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:00 am -
2 stops18h 09m
Sun 10/411:59 pm -
1 stop12h 24m
Deal found 8/30![American Airlines logo]()
$520
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:00 pm -
1 stop9h 58m
Wed 10/75:00 am -
1 stop9h 38m
Deal found 8/30![United Airlines logo]()
$522
This American Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:00 am -
2 stops10h 25m
Wed 10/710:10 pm -
1 stop10h 10m
Deal found 8/30![American Airlines logo]()
$523
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:00 pm -
1 stop9h 58m
Mon 10/195:00 am -
1 stop9h 38m
Deal found 9/1![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/63:46 pm -
1 stop9h 54m
Sun 11/156:00 am -
1 stop11h 24m
Deal found 9/2![United Airlines logo]()
$544
This American Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/152:58 pm -
2 stops21h 31m
Fri 9/181:04 pm -
2 stops18h 56m
Deal found 9/1![American Airlines logo]()
$550
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:00 pm -
1 stop9h 58m
Wed 10/286:00 am -
1 stop11h 24m
Deal found 9/1![United Airlines logo]()
$564
Best flights from Puerto Rico to OntarioDiscover carefully curated flight deals from Puerto Rico to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.
Discover carefully curated flight deals from Puerto Rico to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 3, 2026.
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:00 pm -
1 stop9h 58m
Wed 10/75:00 am -
1 stop9h 38m
Deal found 8/30![United Airlines logo]()
$522
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:00 pm -
1 stop9h 58m
Sun 11/16:00 am -
1 stop11h 24m
Deal found 8/30![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:00 pm -
1 stop9h 58m
Mon 10/195:00 am -
1 stop9h 38m
Deal found 8/31![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/262:00 pm -
1 stop9h 58m
Wed 9/305:00 am -
1 stop9h 38m
Deal found 9/2![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/252:00 pm -
1 stop9h 58m
Thu 10/15:00 am -
1 stop9h 38m
Deal found 9/2![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:00 pm -
1 stop9h 58m
Sun 10/116:00 am -
1 stop11h 38m
Deal found 8/29![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:00 am -
2 stops13h 41m
Wed 10/145:00 am -
1 stop9h 38m
Deal found 9/2![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/272:00 pm -
1 stop9h 58m
Sun 10/45:00 am -
1 stop9h 38m
Deal found 8/30![United Airlines logo]()
$544
Last-minute flights from Puerto Rico to OntarioDiscover last-minute flight deals from Puerto Rico to Ontario. Data last updated September 3, 2026 and is based on user searches.
Discover last-minute flight deals from Puerto Rico to Ontario. Data last updated September 3, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/152:58 pm -
2 stops21h 31m
Fri 9/181:04 pm -
2 stops18h 56m
Deal found 9/1![American Airlines logo]()
$550
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:00 am -
2 stops14h 12m
Tue 9/226:00 am -
1 stop11h 38m
Deal found 8/30![United Airlines logo]()
$582
This American Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:58 pm -
2 stops21h 31m
Tue 9/221:04 pm -
2 stops18h 56m
Deal found 8/30![American Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:00 pm -
1 stop9h 58m
Wed 10/75:00 am -
1 stop9h 38m
Deal found 8/30![United Airlines logo]()
$522
This American Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:00 am -
2 stops10h 25m
Wed 10/710:10 pm -
1 stop10h 10m
Deal found 8/30![American Airlines logo]()
$523
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/261:00 am -
2 stops14h 46m
Sun 10/46:00 am -
1 stop11h 38m
Deal found 8/30![United Airlines logo]()
$468
This Southwest deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:00 am -
2 stops12h 00m
Sun 10/45:40 pm -
2 stops12h 40m
Deal found 8/30![Southwest logo]()
$471
This American Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:00 am -
2 stops18h 09m
Sun 10/411:59 pm -
1 stop12h 24m
Deal found 8/30![American Airlines logo]()
$520
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:00 pm -
1 stop9h 58m
Mon 10/195:00 am -
1 stop9h 38m
Deal found 9/1![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:00 pm -
1 stop9h 58m
Wed 10/286:00 am -
1 stop11h 24m
Deal found 9/1![United Airlines logo]()
$564
One-way flights from Puerto Rico to OntarioSearch for one-way flight options from Puerto Rico to Ontario. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.
Search for one-way flight options from Puerto Rico to Ontario. Find affordable one-way fares based on user searches. Data last updated September 3, 2026.
This Southwest deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/710:00 am -
2 stops11h 35m
Deal found 8/30![Southwest logo]()
$217
This American Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:41 pm -
1 stop13h 18m
Deal found 8/30![American Airlines logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:59 am -
2 stops36h 30m
Deal found 9/1![Frontier logo]()
$225
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/182:21 pm -
1 stop10h 30m
Deal found 8/30![United Airlines logo]()
$262
This American Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1511:51 am -
2 stops11h 16m
Deal found 9/1![American Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/67:38 am -
2 stops11h 50m
Deal found 9/3![American Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:51 pm -
2 stops28h 55m
Deal found 9/2![Frontier logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/228:05 am -
2 stops16h 46m
Deal found 9/2![United Airlines logo]()
$302
This American Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/124:17 pm -
1 stop20h 18m
Deal found 9/1![American Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/112:00 pm -
1 stop9h 58m
Deal found 9/1![United Airlines logo]()
$306
This JetBlue deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:30 am -
1 stop14h 44m
Deal found 8/31![JetBlue logo]()
$313
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:00 am -
2 stops14h 16m
Deal found 9/1![United Airlines logo]()
$320
Find flight deals from Puerto Rico to Ontario
Keep the following information in mind while searching for Puerto Rico to Ontario flight deals. Data was last updated September 3, 2026.
Round-trip from | $468 (United Airlines) |
|---|---|
One-way from | $217 (Southwest) |
Popular in | July |
Cheapest in | September |
Average price | $353 |
Cheapflights Fare Finder
Customize your flight search to find flights from Puerto Rico to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 3, 2026.
Use the filters below to find and compare flights from Puerto Rico to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Thu 9/24
2:00 pm-8:58 pm
1 stop9h 58m
Ontario
Wed 10/7
5:00 am-5:38 pm
1 stop9h 38m
$522
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Wed 10/21
2:00 pm-8:58 pm
1 stop9h 58m
Ontario
Sun 11/1
6:00 am-9:24 pm
1 stop11h 24m
$524
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Thu 10/15
2:00 pm-8:58 pm
1 stop9h 58m
Ontario
Mon 10/19
5:00 am-5:38 pm
1 stop9h 38m
$524
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Sat 9/26
2:00 pm-8:58 pm
1 stop9h 58m
Ontario
Wed 9/30
5:00 am-5:38 pm
1 stop9h 38m
$524
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Fri 9/25
2:00 pm-8:58 pm
1 stop9h 58m
Ontario
Thu 10/1
5:00 am-5:38 pm
1 stop9h 38m
$524
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Thu 10/8
2:00 pm-8:58 pm
1 stop9h 58m
Ontario
Sun 10/11
6:00 am-8:38 pm
1 stop11h 38m
$524
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Tue 9/29
7:00 am-5:41 pm
2 stops13h 41m
Ontario
Wed 10/14
5:00 am-5:38 pm
1 stop9h 38m
$524
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Sun 9/27
2:00 pm-8:58 pm
1 stop9h 58m
Ontario
Sun 10/4
5:00 am-5:38 pm
1 stop9h 38m
$544
Cheapest one-way
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Sun 10/11
5:00 am-2:05 pm
2 stops12h 05m
$217
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Wed 10/7
10:00 am-6:35 pm
2 stops11h 35m
$217
Showing 1-10 of 18 resultsSorted by cheapest first
Best time to book a flight from Puerto Rico to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Puerto Rico with our price prediction graph.
SJU-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Puerto Rico to Ontario
PR0-ONT
SJU-ONT
What is the cheapest month to book a flight from Puerto Rico to Ontario?
Currently, January is the cheapest month in which you can book a flight from Puerto Rico to Ontario (average of $288). Flying from Puerto Rico to Ontario in July is currently the most expensive (average of $1,150). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Puerto Rico to Ontario?
The best time to book flights from Puerto Rico to Ontario is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated September 3, 2026.
Read through reviews of airlines operating flights from Puerto Rico to Ontario, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Puerto Rico to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Ontario flight routes
Other flight options
Popular flights
Alternative routes for Puerto Rico to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Puerto Rico to Ontario by cabin class
Find flights from Puerto Rico to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 3, 2026.
Puerto Rico and Ontario flights
Browse other Puerto Rico and Ontario flight options. Last updated on September 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Puerto Rico to Ontario
Discover the top 3 airlines that operate flights from Puerto Rico to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$367 | Average$593 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$389 | Average$435 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$461 | Average$665 | FlexibilityNo cancel fee | On-time71% |