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Cheap flights from Ontario to Port of Spain from $321

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Port of Spain departing on 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Port of Spain

Cheap round-trip flights

JetBlue Logo
10:56 pm - 2:34 pmONT-POS
12h 38m1 stop
JetBlue Logo
3:59 pm - 9:29 pmPOS-ONT
32h 30m1 stop
$567JetBlue
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Sat, Oct 4 - Fri, Oct 17
United Airlines Logo
6:05 am - 12:23 amONT-POS
14h 18m1 stop
United Airlines Logo
1:30 am - 12:37 pmPOS-ONT
15h 07m2 stops
$753United Airlines
Find Deal
Fri, Nov 21 - Mon, Nov 24
United Airlines Logo
6:41 pm - 12:23 amONT-POS
25h 42m2 stops
United Airlines Logo
1:30 am - 9:49 pmPOS-ONT
24h 19m1 stop
$766United Airlines
Find Deal
Wed, Dec 10 - Tue, Dec 16
United Airlines Logo
6:00 am - 11:23 pmONT-POS
14h 23m1 stop
United Airlines Logo
12:30 am - 12:51 pmPOS-ONT
15h 21m2 stops
$863United Airlines
Find Deal
Sat, Oct 4 - Fri, Oct 17
United Airlines Logo
6:05 am - 12:23 amONT-POS
14h 18m1 stop
United Airlines Logo
1:30 am - 12:33 pmPOS-ONT
15h 03m2 stops
$868United Airlines
Find Deal
Fri, Nov 21 - Tue, Nov 25
United Airlines Logo
6:00 am - 11:23 pmONT-POS
14h 23m1 stop
United Airlines Logo
12:30 am - 12:51 pmPOS-ONT
15h 21m2 stops
$888United Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
United Airlines Logo
6:00 am - 11:23 pmONT-POS
14h 23m1 stop
United Airlines Logo
12:30 am - 12:13 pmPOS-ONT
14h 43m2 stops
$913United Airlines
Find Deal
Fri, Oct 3 - Mon, Oct 6
United Airlines Logo
6:00 am - 12:23 amONT-POS
14h 23m1 stop
United Airlines Logo
1:30 am - 9:49 pmPOS-ONT
24h 19m1 stop
$924United Airlines
Find Deal
Thu, Dec 4 - Sun, Dec 7
Air Canada Logo
5:05 am - 1:10 amONT-POS
40h 05m2 stops
Air Canada Logo
2:15 am - 10:01 amPOS-ONT
35h 46m2 stops
$2,236Air Canada
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Sat, Dec 20 - Sun, Dec 28
Air Canada Logo
5:05 am - 1:10 amONT-POS
16h 05m2 stops
Air Canada Logo
2:15 am - 5:43 pmPOS-ONT
19h 28m2 stops
$2,461Air Canada
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Fri, Dec 19 - Sun, Dec 28

United Airlines flights from Ontario to Port of Spain

Our best United Airlines deals on Ontario to Port of Spain flight tickets
United Airlines
Nov 21
ONT6:05 amOntario
14h 18m
1 stop
POS12:23 amPort of Spain Piarco Intl
Nov 24
POS1:30 amPort of Spain Piarco Intl
15h 07m
2 stops
ONT12:37 pmOntario
$753
Find similar
United Airlines
Dec 10
ONT6:41 pmOntario
25h 42m
2 stops
POS12:23 amPort of Spain Piarco Intl
Dec 16
POS1:30 amPort of Spain Piarco Intl
24h 19m
1 stop
ONT9:49 pmOntario
$766
Find similar
United Airlines
Oct 4
ONT6:00 amOntario
14h 23m
1 stop
POS11:23 pmPort of Spain Piarco Intl
Oct 17
POS12:30 amPort of Spain Piarco Intl
15h 21m
2 stops
ONT12:51 pmOntario
$863
Find similar

Air Canada flights from Ontario to Port of Spain

Our best Air Canada deals on Ontario to Port of Spain flight tickets
Air Canada
Dec 20
ONT5:05 amOntario
40h 05m
2 stops
POS1:10 amPort of Spain Piarco Intl
Dec 28
POS2:15 amPort of Spain Piarco Intl
35h 46m
2 stops
ONT10:01 amOntario
$2,236
Find similar
Air Canada
Dec 19
ONT5:05 amOntario
16h 05m
2 stops
POS1:10 amPort of Spain Piarco Intl
Dec 28
POS2:15 amPort of Spain Piarco Intl
19h 28m
2 stops
ONT5:43 pmOntario
$2,461
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Ontario to Port of Spain that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 10/4

10:56 pm-2:34 pm

1 stop12h 38m

Port of Spain Piarco Intl

Fri 10/17

3:59 pm-9:29 pm

1 stop32h 30m

$567

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 11/21

6:05 am-12:23 am

1 stop14h 18m

Port of Spain Piarco Intl

Mon 11/24

1:30 am-12:37 pm

2 stops15h 07m

$753

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Wed 12/10

6:41 pm-12:23 am

2 stops25h 42m

Port of Spain Piarco Intl

Tue 12/16

1:30 am-9:49 pm

1 stop24h 19m

$766

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 10/4

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Fri 10/17

12:30 am-12:51 pm

2 stops15h 21m

$863

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 11/21

6:05 am-12:23 am

1 stop14h 18m

Port of Spain Piarco Intl

Tue 11/25

1:30 am-12:33 pm

2 stops15h 03m

$868

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 10/3

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Mon 10/6

12:30 am-12:51 pm

2 stops15h 21m

$888

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 10/3

6:00 am-11:23 pm

1 stop14h 23m

Port of Spain Piarco Intl

Mon 10/6

12:30 am-12:13 pm

2 stops14h 43m

$913

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Thu 12/4

6:00 am-12:23 am

1 stop14h 23m

Port of Spain Piarco Intl

Sun 12/7

1:30 am-9:49 pm

1 stop24h 19m

$924

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Sat 12/20

5:05 am-1:10 am

2 stops40h 05m

Port of Spain Piarco Intl

Sun 12/28

2:15 am-10:01 am

2 stops35h 46m

$2,236

OntarioPort of Spain

ONT - POS

ONTPOS

Ontario

Fri 12/19

5:05 am-1:10 am

2 stops16h 05m

Port of Spain Piarco Intl

Sun 12/28

2:15 am-5:43 pm

2 stops19h 28m

$2,461

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Ontario to Port of Spain

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Port of Spain?

The cheapest day to depart from Ontario to Port of Spain is on a Saturday when prices can be found for as low as $589. Flights from Ontario to Port of Spain on a Friday will generally be more expensive and average around $846. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Port of Spain?

In the afternoon is the cheapest time of day to fly from Ontario to Port of Spain when you can find flight prices for as low as $622. Flying to Port of Spain in the afternoon is an ideal time because this is during off-peak travel hours. In the evening is when there is more demand to fly to Port of Spain, so prices are often more expensive at around $678 per ticket.

When to book flights from Ontario to Port of Spain

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Port of Spain according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Port of Spain (ONT to POS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Port of Spain

Direct flights

None
There are no direct flights from Ontario to Port of Spain. There are no popular flight routes from Ontario to Port of Spain.
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  • How far is Ontario to Port of Spain Piarco Intl by plane?

    Port of Spain Piarco Intl is 3875.9 mi away from Ontario. 12h 38m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Ontario Airport to Port of Spain Piarco Intl Airport?

    Prices for flights from Ontario Airport to Port of Spain Piarco Intl Airport are updated daily.

  • How old do you have to be to fly from Ontario Airport to Port of Spain Piarco Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Port of Spain Piarco Intl Airport.

  • What documentation or ID do you need to fly to Port of Spain Piarco Intl Airport?

    The travel and health documents you'll need for your trip to Port of Spain Piarco Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Port of Spain Piarco Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Port of Spain?

Book flights to Port of Spain if you plan to visit one of these locations
Piarco

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Port of Spain?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Port of Spain from Ontario.

Can I find flights from Ontario to Port of Spain with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Port of Spain flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Port of Spain?

Once you have performed a search for Ontario to Port of Spain flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Port of Spain right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Port of Spain now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Port of Spain and let you know when they change.

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