$175+ Cheap flights from Puerto Rico to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ONT
Nov 19 — Nov 261
Round-trip
1 adult, Economy
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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
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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
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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 October 20, 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 October 20, 2026.
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:52 pm -
2 stops21h 43m
Sat 11/711:52 am -
2 stops20h 44m
Deal found 10/19![Frontier logo]()
$479
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/32:21 pm -
1 stop10h 50m
Mon 12/145:00 am -
2 stops15h 36m
Deal found 10/19![United Airlines logo]()
$494
This Mytrip deal was found by Cheapflights users on 10/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:52 pm -
2 stops21h 43m
Fri 11/68:35 pm -
2 stops24h 24m
Deal found 10/16![Frontier logo]()
$514
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:52 pm -
2 stops21h 43m
Fri 11/68:35 pm -
2 stops24h 24m
Deal found 10/19![Frontier logo]()
$516
This American Airlines deal was found by Cheapflights users on 10/19. 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 12/36:28 am -
2 stops13h 07m
Tue 12/151:23 pm -
2 stops17h 21m
Deal found 10/19![American Airlines logo]()
$534
This American Airlines deal was found by Cheapflights users on 10/18. 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 11/252:29 pm -
1 stop12h 51m
Wed 12/91:02 pm -
2 stops16h 34m
Deal found 10/18![American Airlines logo]()
$539
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/32:21 pm -
1 stop10h 50m
Tue 12/157:00 am -
1 stop10h 00m
Deal found 10/19![United Airlines logo]()
$544
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/304:36 pm -
2 stops21h 06m
Mon 11/26:30 am -
2 stops14h 29m
Deal found 10/19![Frontier logo]()
$547
This Kiwi.com deal was found by Cheapflights users on 10/15. 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.
Tue 12/223:53 pm -
2 stops19h 14m
Thu 1/74:14 pm -
1 stop10h 17m
Deal found 10/15![Frontier logo]()
$552
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/112:05 am -
2 stops17h 28m
Mon 11/165:00 am -
1 stop9h 25m
Deal found 10/19![United Airlines logo]()
$558
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:52 pm -
2 stops21h 50m
Thu 11/192:23 pm -
2 stops20h 09m
Deal found 10/15![Frontier logo]()
$561
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 October 20, 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 October 20, 2026.
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/37:40 am -
2 stops13h 56m
Mon 12/146:40 pm -
2 stops13h 10m
Deal found 10/19![United Airlines logo]()
$494
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:52 pm -
2 stops21h 43m
Fri 11/68:35 pm -
2 stops24h 24m
Deal found 10/19![Frontier logo]()
$516
This United Airlines deal was found by Cheapflights users on 10/19. 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 12/37:40 am -
2 stops13h 56m
Tue 12/157:00 am -
2 stops13h 36m
Deal found 10/19![United Airlines logo]()
$494
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:52 pm -
2 stops21h 50m
Thu 11/192:23 pm -
2 stops20h 09m
Deal found 10/15![Frontier logo]()
$561
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/123:46 pm -
1 stop9h 54m
Mon 11/165:00 am -
1 stop9h 25m
Deal found 10/19![United Airlines logo]()
$558
This United Airlines deal was found by Cheapflights users on 10/18. 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 11/172:21 pm -
1 stop10h 30m
Tue 11/245:00 am -
1 stop9h 25m
Deal found 10/18![United Airlines logo]()
$594
Last-minute flights from Puerto Rico to OntarioDiscover last-minute flight deals from Puerto Rico to Ontario. Data last updated October 20, 2026 and is based on user searches.
Discover last-minute flight deals from Puerto Rico to Ontario. Data last updated October 20, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:51 pm -
2 stops28h 47m
Sat 11/212:01 pm -
2 stops20h 31m
Deal found 10/15![Frontier logo]()
$578
This Mytrip deal was found by Cheapflights users on 10/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/294:52 pm -
2 stops20h 50m
Sun 11/158:03 pm -
2 stops24h 56m
Deal found 10/18![Frontier logo]()
$569
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/304:36 pm -
2 stops21h 06m
Mon 11/26:30 am -
2 stops14h 29m
Deal found 10/19![Frontier logo]()
$547
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:59 pm -
2 stops21h 43m
Sun 11/18:35 pm -
2 stops24h 24m
Deal found 10/19![Frontier logo]()
$567
This Mytrip deal was found by Cheapflights users on 10/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:52 pm -
2 stops21h 43m
Thu 12/310:23 am -
2 stops19h 42m
Deal found 10/18![Frontier logo]()
$565
This Mytrip deal was found by Cheapflights users on 10/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:52 pm -
2 stops21h 43m
Fri 11/68:35 pm -
2 stops24h 24m
Deal found 10/16![Frontier logo]()
$514
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:52 pm -
2 stops21h 43m
Sat 11/711:52 am -
2 stops20h 44m
Deal found 10/19![Frontier logo]()
$479
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:52 pm -
2 stops21h 43m
Fri 11/68:35 pm -
2 stops24h 24m
Deal found 10/19![Frontier logo]()
$516
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/123:46 pm -
1 stop9h 54m
Mon 11/165:00 am -
1 stop9h 25m
Deal found 10/19![United Airlines logo]()
$558
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:52 pm -
2 stops21h 50m
Thu 11/192:23 pm -
2 stops20h 09m
Deal found 10/15![Frontier logo]()
$561
This American Airlines deal was found by Cheapflights users on 10/18. 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 11/252:29 pm -
1 stop12h 51m
Wed 12/91:02 pm -
2 stops16h 34m
Deal found 10/18![American Airlines logo]()
$539
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 October 20, 2026.
Search for one-way flight options from Puerto Rico to Ontario. Find affordable one-way fares based on user searches. Data last updated October 20, 2026.
This Super.com deal was found by Cheapflights users on 10/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:58 pm -
1 stop14h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Frontier logo]()
$175
This Booking.com deal was found by Cheapflights users on 10/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:58 pm -
1 stop14h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Frontier logo]()
$188
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:00 am -
2 stops22h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$198
This Mytrip deal was found by Cheapflights users on 10/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:52 pm -
2 stops21h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$210
This Mytrip deal was found by Cheapflights users on 10/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/95:01 am -
2 stops21h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Frontier logo]()
$212
This Mytrip deal was found by Cheapflights users on 10/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:23 am -
2 stops20h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$219
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/44:52 pm -
2 stops21h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$233
This Mytrip deal was found by Cheapflights users on 10/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:52 pm -
2 stops21h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$235
This Mytrip deal was found by Cheapflights users on 10/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/303:59 pm -
2 stops21h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Frontier logo]()
$239
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 October 20, 2026.
Round-trip from | $479 (Mytrip) |
|---|---|
One-way from | $175 (Super.com) |
Popular in | July |
Cheapest in | September |
Average price | $397 |
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 October 20, 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
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Sat 11/14
8:05 am-8:51 pm
2 stops16h 46m
Ontario
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$279
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Fri 12/4
2:21 pm-9:11 pm
1 stop10h 50m
Ontario
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$297
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Wed 1/20
7:40 am-9:00 pm
2 stops17h 20m
Ontario
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$297
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Thu 2/4
7:40 am-8:25 pm
2 stops16h 45m
Ontario
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$297
Quickest round-trip
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Sat 12/19
6:35 am-12:42 pm
1 stop10h 07m
Ontario
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$297
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Thu 11/12
2:21 pm-8:51 pm
1 stop10h 30m
Ontario
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$297
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Thu 12/17
3:46 pm-10:11 pm
1 stop10h 25m
Ontario
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$297
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Sun 11/22
8:05 am-8:15 pm
2 stops16h 10m
Ontario
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$313
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Thu 1/14
2:21 pm-9:00 pm
1 stop10h 39m
Ontario
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$337
San JuanOntario
SJU San Juan Luis Munoz Marin Intl - ONT Ontario
SJUONT
San Juan Luis Munoz Marin Intl
Thu 12/3
7:40 am-5:36 pm
2 stops13h 56m
Ontario
Mon 12/14
6:40 pm-11:50 am
2 stops13h 10m
$494
Showing 1-10 of 15 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 17 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 October 20, 2026.
Read through reviews of airlines operating flights from Puerto Rico to Ontario, such as Southwest and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Entertainment
7.4
Overall
7.9
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Entertainment
7.4
Overall
7.9
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Boarding
8.1
Entertainment
7.4
Overall
7.9
Crew
8.6
Comfort
8.0
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
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Alternative routes
Complete your trip
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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 October 20, 2026.
Puerto Rico and Ontario flights
Browse other Puerto Rico and Ontario flight options. Last updated on October 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Puerto Rico to Ontario
Discover the top 2 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 October 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$389 | Average$435 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$461 | Average$736 | FlexibilityNo cancel fee | On-time71% |