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Port of Spain

$373+ Cheap flights from Ontario (ONT) to Port of Spain (POS)

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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — POS
Dec 22 — Dec 291
Mon 12/22
Mon 12/29
1 adult, Economy
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Find flight deals from Ontario to Port of Spain

Cheapest flights from Ontario to Port of Spain
Explore the most affordable flight options available from Ontario to Port of Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 22, 2025.

This United Airlines deal was found by Cheapflights users on 11/21. 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 12/266:39 pmONT - POS
2 stops25h 44mUnited Airlines
Mon 12/291:30 amPOS - ONT
2 stops24h 55mUnited Airlines
Deal found 11/21$997
This United Airlines deal was found by Cheapflights users on 11/21. 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 11/276:00 amONT - POS
2 stops14h 23mUnited Airlines
Sat 12/61:30 amPOS - ONT
2 stops15h 02mUnited Airlines
Deal found 11/21$1,013
This United Airlines deal was found by Cheapflights users on 11/21. 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.
Mon 12/221:40 pmONT - POS
2 stops30h 43mUnited Airlines
Thu 12/251:30 amPOS - ONT
2 stops25h 11mUnited Airlines
Deal found 11/21$1,023
This United Airlines deal was found by Cheapflights users on 11/21. 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.
Mon 12/221:40 pmONT - POS
2 stops30h 43mUnited Airlines
Sun 12/282:20 amPOS - ONT
2 stops23h 32mUnited Airlines
Deal found 11/21$1,099

Cheap flight deals from Ontario to Port of Spain

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Port of Spain (POS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 22, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$753
(United Airlines)

One-way from

$373
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$540
Provider with most accurate pricing for Ontario-Port of Spain Piarco Intl flight deals.
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Provider most trusted by Cheapflights users for Ontario-Port of Spain Piarco Intl flights.
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From Ontario to Port of Spain Piarco Intl
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One-way flight from Ontario to Port of Spain Piarco Intl
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Port of Spain 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 2,558,603 searches. Data last updated November 22, 2025.
Use the filters below to find and compare flights from Ontario to Port of Spain that are best for you.

Fly from

Ontario

Fly to

Port of Spain

Route

Depart

Return

Price

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Thu 1/15

6:39 pm-12:23 am

2 stops25h 44m

Port of Spain Piarco Intl

Wed 5/27

12:30 am-5:18 pm

2 stops19h 48m

$753

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sun 3/29

6:00 am-1:51 pm

2 stops28h 51m

Port of Spain Piarco Intl

Thu 4/2

3:34 pm-1:40 pm

2 stops25h 06m

$753

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 2/13

1:45 pm-12:23 am

2 stops30h 38m

Port of Spain Piarco Intl

Mon 2/16

1:30 am-5:41 pm

2 stops20h 11m

$753

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Wed 1/14

1:53 pm-12:23 am

2 stops30h 30m

Port of Spain Piarco Intl

Wed 5/27

12:30 am-5:18 pm

2 stops19h 48m

$753

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Thu 4/23

6:53 pm-11:23 pm

2 stops25h 30m

Port of Spain Piarco Intl

Thu 4/30

12:30 am-9:21 pm

1 stop23h 51m

$807

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sun 3/29

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Wed 4/1

12:30 am-8:46 pm

2 stops23h 16m

$868

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Mon 1/5

6:39 pm-12:23 am

2 stops25h 44m

Port of Spain Piarco Intl

Sun 1/11

1:30 am-10:53 pm

2 stops25h 23m

$868

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 4/18

8:05 pm-2:00 pm

2 stops14h 55m

$373

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 4/18

6:00 am-11:23 pm

1 stop14h 23m

$373

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Wed 12/10

6:41 pm-12:23 am

2 stops25h 42m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 17 results
1
2

Compare providers for flights from Ontario to Port of Spain

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Port of Spain in November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Port of Spain flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Port of Spain flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Port of Spain flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Port of Spain flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Port of Spain flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Port of Spain

Have a flexible travel schedule? Discover the best time to fly to Port of Spain from Ontario with our price prediction graph.
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 Ontario to Port of Spain

What is the cheapest month to book a flight from Ontario to Port of Spain?

Currently, April is the cheapest month in which you can book a flight from Ontario to Port of Spain (average of $276). Flying from Ontario to Port of Spain in December is currently the most expensive (average of $540). 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.

Reviews of airlines servicing Port of Spain

Get insights into the airlines that provide service to Port of Spain. 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 Port of Spain. Reviews last updated November 22, 2025.
See what other customers who have flown with United Airlines from Ontario to Port of Spain have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,035 reviews

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,035 reviews
United Airlines
7.4
Good
9,035 reviews

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

Find useful and relevant information for your journey from Ontario to Port of Spain. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Port of Spain?

    There are many flights that can get you from Ontario to Port of Spain in 25h 44m. Fly via United Airlines or American Airlines to get the fastest option. There are 3885 mi between Ontario and Port of Spain. This flight may include one or multiple stops.

  • Can I find deals for flights from Ontario to Port of Spain that include hotel bookings?

    Yes. In addition to deals on Ontario to Port of Spain flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Port of Spain?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Port of Spain.

  • Can I find deals for business class flights from Ontario to Port of Spain?

    Yes. Cheapflights offers flight deals from Ontario to Port of Spain by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Port of Spain?

    Currently, April is the cheapest month in which you can book a flight from Ontario to Port of Spain (average of $276). Flying from Ontario to Port of Spain in December is currently the most expensive (average of $540). 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.

See more FAQs

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Top airline flying from Ontario to Port of Spain

Discover the top airline that operate flights from Ontario to Port of Spain. 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 2,558,603 searches. Data last updated November 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$517Average$628FlexibilityNo cancel feeOn-time69%

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